Dev 0.9 (#115)

* make timestamp handling stateless

* adapt tests for stateless timestamp handling

* initial version

* add more type annotations

* add more type annotations

* fix Generator annotation for ha_proxy_confs

* fix names of issue branches

* add more type annotations

* don't use depricated varn anymore

* don't mark all test as async

* fix imports

* fix solarman unit tests

- fake Mqtt class

* print image build time during proxy start

* update changelog

* fix pytest collect warning

* cleanup msg_get_time handler

* addapt unit test

* label debug images with debug

* dump droped packages

* fix warnings

* add systemtest with invalid start byte

* update changelog

* update changelog

* add exposed ports and healthcheck

* add wget for healthcheck

* add aiohttp

* use config validation for healthcheck

* add http server for healthcheck

* calculate msg prossesing time

* add healthy check methods

* fix typo

* log ConfigErr with DEBUG level

* Update async_stream.py

- check if processing time is < 5 sec

* add a close handler to release internal resources

* call modbus close hanlder on a close call

* add exception handling for forward handler

* update changelog

* isolate Modbus fix

* cleanup

* update changelog

* add heaithy handler

* log unrelease references

* add healtcheck

* complete exposed port list

* add wget for healtcheck

* add aiohttp

* use Enum class for State

* calc processing time for healthcheck

* add HTTP server for healthcheck

* cleanup

* Update CHANGELOG.md

* updat changelog

* add docstrings to state enum

* set new state State.received

* add healthy method

* log healthcheck infos with DEBUG level

* update changelog

* S allius/issue100 (#101)

* detect dead connections

- disconnect connection on Msg receive timeout
- improve connection trace (add connection id)

* update changelog

* fix merge conflict

* fix unittests

* S allius/issue108 (#109)

* add more data types

* adapt unittests

* improve test coverage

* fix linter warning

* update changelog

* S allius/issue102 (#110)

* hotfix: don't send two MODBUS commands together

* fix unit tests

* remove read loop

* optional sleep between msg read and sending rsp

* wait after read 0.5s before sending a response

* add pending state

* fix state definitions

* determine the connection timeout by the conn state

* avoid sending MODBUS cmds in the inverter's reporting phase

* update changelog

* S allius/issue111 (#112)

Synchronize regular MODBUS commands with the status of the inverter to prevent the inverter from crashing due to unexpected packets.

* inital checkin

* remove crontab entry for regular MODBUS cmds

* add timer for regular MODBUS polling

* fix Stop method call for already stopped timer

* optimize MB_START_TIMEOUT value

* cleanup

* update changelog

* fix buildx warnings

* fix timer cleanup

* fix Config.class_init()

- return error string or None
- release Schema structure after building thr config

* add quit flag to docker push

* fix timout calculation

* rename python to debugpy

* add asyncio log

* cleanup shutdown
- stop webserver on shutdown
- enable asyncio debug mode for debug versions

* update changelog

* update changelog

* fix exception in MODBUS timeout callback

* update changelog

.github/workflows/python-app.yml

@@ -5,7 +5,7 @@ name: Python application
 
 on:
   push:
-    branches: [ "main", "dev-*" ]
+    branches: [ "main", "dev-*", "*/issue*" ]
     paths-ignore:
     - '**.md' # Do no build on *.md changes
     - '**.yml' # Do no build on *.yml changes
@@ -29,15 +29,15 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python 3.12
-      uses: actions/setup-python@v3
+      uses: actions/setup-python@v5
       with:
         python-version: "3.12"
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install flake8 pytest
+        pip install flake8 pytest pytest-asyncio
         if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
     - name: Lint with flake8
       run: |

.vscode/launch.json

@@ -6,7 +6,7 @@
     "configurations": [
         {
             "name": "Python: Aktuelle Datei",
-            "type": "python",
+            "type": "debugpy",
             "request": "launch",
             "program": "${file}",
             "console": "integratedTerminal",

CHANGELOG.md

@@ -5,7 +5,65 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [Unreleased]
+## [unreleased]
+
+## [0.9.0] - 2024-07-01
+
+- fix exception in MODBUS timeout callback
+
+## [0.9.0-RC1] - 2024-06-29
+
+- add asyncio log and debug mode
+- stop the HTTP server on shutdown gracefully
+- Synchronize regular MODBUS commands with the status of the inverter to prevent the inverter from crashing due to
+  unexpected packets. [#111](https://github.com/s-allius/tsun-gen3-proxy/issues/111)
+- GEN3: avoid sending MODBUS commands to the inverter during the inverter's reporting phase
+- GEN3: determine the connection timeout based on the connection state
+- GEN3: support more data encodings for DSP version V5.0.17 [#108](https://github.com/s-allius/tsun-gen3-proxy/issues/108)
+- detect dead connections [#100](https://github.com/s-allius/tsun-gen3-proxy/issues/100)
+- improve connection logging wirt a unique connection id
+- Add healthcheck, readiness and liveness checks [#91](https://github.com/s-allius/tsun-gen3-proxy/issues/91)
+- MODBUS close handler releases internal resource [#93](https://github.com/s-allius/tsun-gen3-proxy/issues/93)
+- add exception handling for message forwarding [#94](https://github.com/s-allius/tsun-gen3-proxy/issues/94)
+- GEN3: make timestamp handling stateless, to avoid blocking when the TSUN cloud is down [#56](https://github.com/s-allius/tsun-gen3-proxy/issues/56)
+- GEN3PLUS: dump invalid packages with wrong start or stop byte
+- label debug imagages als `debug`
+- print imgae build time during proxy start
+- add type annotations
+- improve async unit test and fix pytest warnings
+- run github tests even for pulls on issue branches
+
+## [0.8.1] - 2024-06-21
+
+- Fix MODBUS responses are dropped and not forwarded to the TSUN cloud [#104](https://github.com/s-allius/tsun-gen3-proxy/issues/104)
+- GEN3: Fix connections losts due MODBUS requests [#102](https://github.com/s-allius/tsun-gen3-proxy/issues/102)
+
+## [0.8.0] - 2024-06-07
+
+- improve logging: add protocol or node_id to connection logs
+- improve logging: log ignored AT+ or MODBUS commands
+- improve tracelog: log level depends on message type and source
+- fix typo in docker-compose.yaml and remove the external network definition
+- trace heartbeat and regular modbus pakets witl log level DEBUG
+- GEN3PLUS: don't forward ack paket from tsun to the inverter
+- GEN3PLUS: add allow and block filter for AT+ commands
+- catch all OSError errors in the read loop
+- log Modbus traces with different log levels
+- add Modbus fifo and timeout handler
+- build version string in the same format as TSUN for GEN3 inverters
+- add graceful shutdown
+- parse Modbus values and store them in the database
+- add cron task to request the output power every minute
+- GEN3PLUS: add MQTT topics to send AT commands to the inverter
+- add MQTT topics to send Modbus commands to the inverter
+- convert data collect interval to minutes
+- add postfix for rc and dev versions to the version number
+- change logging level to DEBUG for some logs
+- remove experimental value Register.VALUE_1
+- format Register.POWER_ON_TIME as integer
+- ignore catch-up values from the inverters for now
+
+## [0.7.0] - 2024-04-20
 
 - GEN3PLUS: fix temperature values
 - GEN3PLUS: read corect firmware and logger version

README.md

@@ -39,12 +39,17 @@ If you use a Pi-hole, you can also store the host entry in the Pi-hole.
 
 ## Features
 
-- supports TSUN GEN3 PLUS inverters: TSOL-MS2000, MS1800 and MS1600
+- Supports TSUN GEN3 PLUS inverters: TSOL-MS2000, MS1800 and MS1600
-- supports TSUN GEN3 inverters: TSOL-MS800, MS700, MS600, MS400, MS350 and MS300
+- Supports TSUN GEN3 inverters: TSOL-MS800, MS700, MS600, MS400, MS350 and MS300
 - `MQTT` support
 - `Home-Assistant` auto-discovery support
+- `MODBUS` support via MQTT topics
+- `AT-Command` support via MQTT topics (GEN3PLUS only)
+- Faster DataUp interval sends measurement data to the MQTT broker every minute
 - Self-sufficient island operation without internet
-- runs in a non-root Docker Container
+- Security-Features:
+  - control access via `AT-commands`
+  - Runs in a non-root Docker Container
 
 ## Home Assistant Screenshots
 
@@ -156,7 +161,7 @@ suggested_area = 'balcony'    # Optional, suggested installation area for home-a
 pv1 = {type = 'RSM40-8-405M', manufacturer = 'Risen'}   # Optional, PV module descr
 pv2 = {type = 'RSM40-8-405M', manufacturer = 'Risen'}   # Optional, PV module descr
 
-[inverters."Y17xxxxxxxxxxxx1"]
+[inverters."Y17xxxxxxxxxxxx1"]  # This block is also for inverters with a Y47 serial no
 monitor_sn = 2000000000       # The "Monitoring SN:" can be found on a sticker enclosed with the inverter
 node_id = 'inv_3'             # MQTT replacement for inverters serial number  
 suggested_area = 'garage'     # suggested installation place for home-assistant
@@ -165,6 +170,12 @@ pv2 = {type = 'RSM40-8-410M', manufacturer = 'Risen'}   # Optional, PV module de
 pv3 = {type = 'RSM40-8-410M', manufacturer = 'Risen'}   # Optional, PV module descr
 pv4 = {type = 'RSM40-8-410M', manufacturer = 'Risen'}   # Optional, PV module descr
 
+[gen3plus.at_acl]
+tsun.allow = ['AT+Z', 'AT+UPURL', 'AT+SUPDATE']   # allow this for TSUN access
+tsun.block = []                                   
+mqtt.allow = ['AT+']                              # allow all via mqtt
+mqtt.block = []
+
 ```
 
 ## Inverter Configuration
@@ -215,7 +226,7 @@ In the following table you will find an overview of which inverter model has bee
 A combination with a red question mark should work, but I have not checked it in detail.
 
 <table align="center">
-  <tr><th align="center">Micro Inverter Model</th><th align="center">Fw. 1.00.06</th><th align="center">Fw. 1.00.17</th><th align="center">Fw. 1.00.20</th><th align="center">Fw. 1.1.00.0B</th></tr>
+  <tr><th align="center">Micro Inverter Model</th><th align="center">Fw. 1.00.06</th><th align="center">Fw. 1.00.17</th><th align="center">Fw. 1.00.20</th><th align="center">Fw. 4.0.10</th></tr>
   <tr><td>GEN3 micro inverters (single MPPT):<br>MS300, MS350, MS400<br>MS400-D</td><td align="center">❓</td><td align="center">❓</td><td align="center">❓</td><td align="center">➖</td></tr>
   <tr><td>GEN3 micro inverters (dual MPPT):<br>MS600, MS700, MS800<br>MS600-D, MS800-D</td><td align="center">✔️</td><td align="center">✔️</td><td align="center">✔️</td><td align="center">➖</td></tr>
   <tr><td>GEN3 PLUS micro inverters:<br>MS1600, MS1800, MS2000<br>MS2000-D</td><td align="center">➖</td><td align="center">➖</td><td align="center">➖</td><td align="center">✔️</td></tr>
@@ -230,7 +241,7 @@ Legend
 🚧: Proxy support in preparation
 ```
 
-❗The new inverters of the GEN3 Plus generation (e.g. MS-2000) use a completely different protocol for data transmission to the TSUN server. These inverters are supported from proxy version 0.6. The serial numbers of these inverters start with `Y17E` instead of `R17E`
+❗The new inverters of the GEN3 Plus generation (e.g. MS-2000) use a completely different protocol for data transmission to the TSUN server. These inverters are supported from proxy version 0.6. The serial numbers of these inverters start with `Y17E` or `Y47E` instead of `R17E`
 
 If you have one of these combinations with a red question mark, it would be very nice if you could send me a proxy trace so that I can carry out the detailed checks and adjust the device and system tests. [Ask here how to send a trace](https://github.com/s-allius/tsun-gen3-proxy/discussions/categories/traces-for-compatibility-check)
 

app/Dockerfile

@@ -15,7 +15,7 @@ RUN apk upgrade --no-cache && \
 
 #
 # second stage for building wheels packages
-FROM base as builder
+FROM base AS builder
 
 # copy the dependencies file to the root dir and install requirements
 COPY ./requirements.txt /root/
@@ -26,7 +26,7 @@ RUN apk add --no-cache build-base && \
 
 #
 # third stage for our runtime image
-FROM base as runtime
+FROM base AS runtime
 ARG SERVICE_NAME
 ARG VERSION
 ARG UID
@@ -63,8 +63,8 @@ RUN python -m pip install --no-cache --no-index /root/wheels/* && \
 COPY --chmod=0700 entrypoint.sh /root/entrypoint.sh
 COPY config .
 COPY src .
-
+RUN date > /build-date.txt
-EXPOSE 5005
+EXPOSE 5005 8127 10000
 
 # command to run on container start
 ENTRYPOINT ["/root/entrypoint.sh"]
@@ -73,7 +73,7 @@ CMD [ "python3", "./server.py" ]
 
 LABEL org.opencontainers.image.title="TSUN Gen3 Proxy"
 LABEL org.opencontainers.image.authors="Stefan Allius"
-LABEL org.opencontainers.image.source https://github.com/s-allius/tsun-gen3-proxy
+LABEL org.opencontainers.image.source=https://github.com/s-allius/tsun-gen3-proxy
-LABEL org.opencontainers.image.description 'This proxy enables a reliable connection between TSUN third generation inverters (eg. TSOL MS600, MS800, MS2000) and an MQTT broker to integrate the inverter into typical home automations.'
+LABEL org.opencontainers.image.description='This proxy enables a reliable connection between TSUN third generation inverters (eg. TSOL MS600, MS800, MS2000) and an MQTT broker to integrate the inverter into typical home automations.'
 LABEL org.opencontainers.image.licenses="BSD-3-Clause"
 LABEL org.opencontainers.image.vendor="Stefan Allius"

app/build.sh

@@ -4,7 +4,7 @@
 # rc: release candidate build
 # rel: release build and push to ghcr.io
 # Note: for release build, you need to set GHCR_TOKEN
-# export GHCR_TOKEN=<YOUR_GITHUB_TOKEN>
+# export GHCR_TOKEN=<YOUR_GITHUB_TOKEN> in your .zprofile
 # see also: https://docs.github.com/en/packages/working-with-a-github-packages-registry/working-with-the-container-registry
 
 
@@ -18,27 +18,38 @@ arr=(${VERSION//./ })
 MAJOR=${arr[0]}
 IMAGE=tsun-gen3-proxy
 
-if [[ $1 == dev ]] || [[ $1 == rc ]] ;then
+if [[ $1 == debug ]] || [[ $1 == dev ]] ;then
 IMAGE=docker.io/sallius/${IMAGE}
-VERSION=${VERSION}
+VERSION=${VERSION}-$1
-elif [[ $1 == rel ]];then
+elif [[ $1 == rc ]] || [[ $1 == rel ]];then
 IMAGE=ghcr.io/s-allius/${IMAGE}
 else
 echo argument missing!
-echo try: $0 '[dev|rc|rel]'
+echo try: $0 '[debug|dev|rc|rel]'
 exit 1
 fi
 
 echo version: $VERSION  build-date: $BUILD_DATE   image: $IMAGE
-if [[ $1 == dev ]];then
+if [[ $1 == debug ]];then
-docker build --build-arg "VERSION=${VERSION}" --build-arg environment=dev --build-arg "LOG_LVL=DEBUG" --label "org.opencontainers.image.created=${BUILD_DATE}" --label "org.opencontainers.image.version=${VERSION}" --label "org.opencontainers.image.revision=${BRANCH}" -t ${IMAGE}:latest app
+docker build --build-arg "VERSION=${VERSION}" --build-arg environment=dev --build-arg "LOG_LVL=DEBUG" --label "org.opencontainers.image.created=${BUILD_DATE}" --label "org.opencontainers.image.version=${VERSION}" --label "org.opencontainers.image.revision=${BRANCH}" -t ${IMAGE}:debug app
+elif [[ $1 == dev ]];then
+docker build --build-arg "VERSION=${VERSION}" --build-arg environment=production --label "org.opencontainers.image.created=${BUILD_DATE}" --label "org.opencontainers.image.version=${VERSION}" --label "org.opencontainers.image.revision=${BRANCH}" -t ${IMAGE}:dev app
+
 elif [[ $1 == rc ]];then
-docker build --build-arg "VERSION=${VERSION}" --build-arg environment=production --label "org.opencontainers.image.created=${BUILD_DATE}" --label "org.opencontainers.image.version=${VERSION}" --label "org.opencontainers.image.revision=${BRANCH}" -t ${IMAGE}:latest app
+docker build --build-arg "VERSION=${VERSION}" --build-arg environment=production --label "org.opencontainers.image.created=${BUILD_DATE}" --label "org.opencontainers.image.version=${VERSION}" --label "org.opencontainers.image.revision=${BRANCH}" -t ${IMAGE}:rc -t ${IMAGE}:${VERSION} app
+echo 'login to ghcr.io'    
+echo $GHCR_TOKEN | docker login ghcr.io -u s-allius --password-stdin
+docker push -q ghcr.io/s-allius/tsun-gen3-proxy:rc
+docker push -q ghcr.io/s-allius/tsun-gen3-proxy:${VERSION}
+
 elif [[ $1 == rel ]];then
 docker build --no-cache --build-arg "VERSION=${VERSION}" --build-arg environment=production --label "org.opencontainers.image.created=${BUILD_DATE}" --label "org.opencontainers.image.version=${VERSION}" --label "org.opencontainers.image.revision=${BRANCH}" -t ${IMAGE}:latest -t ${IMAGE}:${MAJOR} -t ${IMAGE}:${VERSION} app
 echo 'login to ghcr.io'    
 echo $GHCR_TOKEN | docker login ghcr.io -u s-allius --password-stdin
-docker push ghcr.io/s-allius/tsun-gen3-proxy:latest
+docker push -q ghcr.io/s-allius/tsun-gen3-proxy:latest
-docker push ghcr.io/s-allius/tsun-gen3-proxy:${MAJOR}
+docker push -q ghcr.io/s-allius/tsun-gen3-proxy:${MAJOR}
-docker push ghcr.io/s-allius/tsun-gen3-proxy:${VERSION}
+docker push -q ghcr.io/s-allius/tsun-gen3-proxy:${VERSION}
-fi
+fi
+
+echo 'check docker-compose.yaml file'
+docker-compose config -q

app/config/default_config.toml

@@ -49,3 +49,8 @@ monitor_sn = 2000000000       # The "Monitoring SN:" can be found on a sticker e
 #pv3 = {type = 'RSM40-8-410M', manufacturer = 'Risen'}   # Optional, PV module descr
 #pv4 = {type = 'RSM40-8-410M', manufacturer = 'Risen'}   # Optional, PV module descr
 
+[gen3plus.at_acl]
+tsun.allow = ['AT+Z', 'AT+UPURL', 'AT+SUPDATE']
+tsun.block = []
+mqtt.allow = ['AT+']
+mqtt.block = []

app/entrypoint.sh

@@ -5,6 +5,7 @@ user="$(id -u)"
 echo "######################################################"
 echo "# prepare: '$SERVICE_NAME' Version:$VERSION"
 echo "# for running with UserID:$UID, GroupID:$GID"
+echo "# Image built: $(cat /build-date.txt) "
 echo "#"
 
 if [ "$user" = '0' ]; then

app/hardening_final.sh

@@ -17,6 +17,5 @@ if [ "$environment" = "production" ] ; then \
   -name od -o \
   -name strings -o \
   -name su -o \
-  -name wget -o \
   \) -delete  \
 ; fi

app/proxy.svg

@@ -4,340 +4,381 @@
 <!-- Generated by graphviz version 2.40.1 (20161225.0304)
  -->
 <!-- Title: G Pages: 1 -->
-<svg width="511pt" height="1204pt"
+<svg width="691pt" height="1312pt"
- viewBox="0.00 0.00 511.39 1204.00" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+ viewBox="0.00 0.00 691.35 1312.00" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
-<g id="graph0" class="graph" transform="scale(1 1) rotate(0) translate(4 1200)">
+<g id="graph0" class="graph" transform="scale(1 1) rotate(0) translate(4 1308)">
 <title>G</title>
-<polygon fill="#ffffff" stroke="transparent" points="-4,4 -4,-1200 507.3928,-1200 507.3928,4 -4,4"/>
+<polygon fill="#ffffff" stroke="transparent" points="-4,4 -4,-1308 687.348,-1308 687.348,4 -4,4"/>
 <!-- A0 -->
 <g id="node1" class="node">
 <title>A0</title>
-<polygon fill="#fff8dc" stroke="#000000" points="148.1964,-1100 39.8036,-1100 39.8036,-1064 154.1964,-1064 154.1964,-1094 148.1964,-1100"/>
+<polygon fill="#fff8dc" stroke="#000000" points="108.5444,-1208 .1516,-1208 .1516,-1172 114.5444,-1172 114.5444,-1202 108.5444,-1208"/>
-<polyline fill="none" stroke="#000000" points="148.1964,-1100 148.1964,-1094 "/>
+<polyline fill="none" stroke="#000000" points="108.5444,-1208 108.5444,-1202 "/>
-<polyline fill="none" stroke="#000000" points="154.1964,-1094 148.1964,-1094 "/>
+<polyline fill="none" stroke="#000000" points="114.5444,-1202 108.5444,-1202 "/>
-<text text-anchor="middle" x="97" y="-1085" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">You can stick notes</text>
+<text text-anchor="middle" x="57.348" y="-1193" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">You can stick notes</text>
-<text text-anchor="middle" x="97" y="-1073" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">on diagrams too!</text>
+<text text-anchor="middle" x="57.348" y="-1181" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">on diagrams too!</text>
 </g>
 <!-- A1 -->
 <g id="node2" class="node">
 <title>A1</title>
-<polygon fill="none" stroke="#000000" points="95.6817,-804 26.3183,-804 26.3183,-768 95.6817,-768 95.6817,-804"/>
+<polygon fill="none" stroke="#000000" points="657.0297,-906 587.6663,-906 587.6663,-870 657.0297,-870 657.0297,-906"/>
-<text text-anchor="middle" x="61" y="-783" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">Singleton</text>
+<text text-anchor="middle" x="622.348" y="-885" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">Singleton</text>
 </g>
 <!-- A2 -->
 <g id="node3" class="node">
 <title>A2</title>
-<polygon fill="none" stroke="#000000" points="0,-518 0,-550 122,-550 122,-518 0,-518"/>
+<polygon fill="none" stroke="#000000" points="561.348,-608 561.348,-640 683.348,-640 683.348,-608 561.348,-608"/>
-<text text-anchor="start" x="51.277" y="-531" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">Mqtt</text>
+<text text-anchor="start" x="612.625" y="-621" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">Mqtt</text>
-<polygon fill="none" stroke="#000000" points="0,-462 0,-518 122,-518 122,-462 0,-462"/>
+<polygon fill="none" stroke="#000000" points="561.348,-552 561.348,-608 683.348,-608 683.348,-552 561.348,-552"/>
-<text text-anchor="start" x="18.4875" y="-499" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">&lt;static&gt;ha_restarts</text>
+<text text-anchor="start" x="579.8355" y="-589" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">&lt;static&gt;ha_restarts</text>
-<text text-anchor="start" x="26.2665" y="-487" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">&lt;static&gt;__client</text>
+<text text-anchor="start" x="587.6145" y="-577" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">&lt;static&gt;__client</text>
-<text text-anchor="start" x="9.8735" y="-475" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">&lt;static&gt;__cb_MqttIsUp</text>
+<text text-anchor="start" x="571.2215" y="-565" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">&lt;static&gt;__cb_MqttIsUp</text>
-<polygon fill="none" stroke="#000000" points="0,-418 0,-462 122,-462 122,-418 0,-418"/>
+<polygon fill="none" stroke="#000000" points="561.348,-508 561.348,-552 683.348,-552 683.348,-508 561.348,-508"/>
-<text text-anchor="start" x="22.936" y="-443" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">&lt;async&gt;publish()</text>
+<text text-anchor="start" x="584.284" y="-533" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">&lt;async&gt;publish()</text>
-<text text-anchor="start" x="27.1045" y="-431" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">&lt;async&gt;close()</text>
+<text text-anchor="start" x="588.4525" y="-521" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">&lt;async&gt;close()</text>
 </g>
 <!-- A1&#45;&gt;A2 -->
 <g id="edge1" class="edge">
 <title>A1&#45;&gt;A2</title>
-<path fill="none" stroke="#000000" d="M61,-757.4632C61,-710.3291 61,-615.0013 61,-550.3153"/>
+<path fill="none" stroke="#000000" d="M622.348,-859.5395C622.348,-810.311 622.348,-708.0351 622.348,-640.2069"/>
-<polygon fill="none" stroke="#000000" points="57.5001,-757.5631 61,-767.5632 64.5001,-757.5632 57.5001,-757.5631"/>
+<polygon fill="none" stroke="#000000" points="618.8481,-859.7608 622.348,-869.7608 625.8481,-859.7608 618.8481,-859.7608"/>
-</g>
-<!-- A10 -->
-<g id="node11" class="node">
-<title>A10</title>
-<polygon fill="none" stroke="#000000" points="7,-282 7,-314 115,-314 115,-282 7,-282"/>
-<text text-anchor="start" x="44.0535" y="-295" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">Inverter</text>
-<polygon fill="none" stroke="#000000" points="7,-190 7,-282 115,-282 115,-190 7,-190"/>
-<text text-anchor="start" x="37.104" y="-263" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">cls.db_stat</text>
-<text text-anchor="start" x="30.4405" y="-251" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">cls.entity_prfx</text>
-<text text-anchor="start" x="21.2755" y="-239" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">cls.discovery_prfx</text>
-<text text-anchor="start" x="20.7115" y="-227" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">cls.proxy_node_id</text>
-<text text-anchor="start" x="16.8225" y="-215" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">cls.proxy_unique_id</text>
-<text text-anchor="start" x="32.6655" y="-203" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">cls.mqtt:Mqtt</text>
-<polygon fill="none" stroke="#000000" points="7,-170 7,-190 115,-190 115,-170 7,-170"/>
-</g>
-<!-- A2&#45;&gt;A10 -->
-<g id="edge11" class="edge">
-<title>A2&#45;&gt;A10</title>
-<path fill="none" stroke="#000000" d="M61,-417.8724C61,-385.8251 61,-347.2624 61,-314.4235"/>
-</g>
-<!-- A3 -->
-<g id="node4" class="node">
-<title>A3</title>
-<polygon fill="none" stroke="#000000" points="173,-1092 173,-1124 244,-1124 244,-1092 173,-1092"/>
-<text text-anchor="start" x="182.945" y="-1105" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">IterRegistry</text>
-<polygon fill="none" stroke="#000000" points="173,-1072 173,-1092 244,-1092 244,-1072 173,-1072"/>
-<polygon fill="none" stroke="#000000" points="173,-1040 173,-1072 244,-1072 244,-1040 173,-1040"/>
-<text text-anchor="start" x="190.439" y="-1053" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">__iter__</text>
-</g>
-<!-- A4 -->
-<g id="node5" class="node">
-<title>A4</title>
-<polygon fill="none" stroke="#000000" points="141,-886 141,-918 275,-918 275,-886 141,-886"/>
-<text text-anchor="start" x="187.7175" y="-899" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">Message</text>
-<polygon fill="none" stroke="#000000" points="141,-722 141,-886 275,-886 275,-722 141,-722"/>
-<text text-anchor="start" x="171.3265" y="-867" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">server_side:bool</text>
-<text text-anchor="start" x="168.543" y="-855" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">header_valid:bool</text>
-<text text-anchor="start" x="161.314" y="-843" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">header_len:unsigned</text>
-<text text-anchor="start" x="167.148" y="-831" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">data_len:unsigned</text>
-<text text-anchor="start" x="186.3245" y="-819" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">unique_id</text>
-<text text-anchor="start" x="190.2135" y="-807" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">node_id</text>
-<text text-anchor="start" x="187.1585" y="-795" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">sug_area</text>
-<text text-anchor="start" x="157.989" y="-783" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">_recv_buffer:bytearray</text>
-<text text-anchor="start" x="156.5945" y="-771" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">_send_buffer:bytearray</text>
-<text text-anchor="start" x="150.7665" y="-759" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">_forward_buffer:bytearray</text>
-<text text-anchor="start" x="190.2135" y="-747" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">db:Infos</text>
-<text text-anchor="start" x="178.826" y="-735" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">new_data:list</text>
-<polygon fill="none" stroke="#000000" points="141,-654 141,-722 275,-722 275,-654 141,-654"/>
-<text text-anchor="start" x="157.7095" y="-703" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">_read():void&lt;abstract&gt;</text>
-<text text-anchor="start" x="182.4445" y="-691" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">close():void</text>
-<text text-anchor="start" x="168.2725" y="-679" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">inc_counter():void</text>
-<text text-anchor="start" x="166.6025" y="-667" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">dec_counter():void</text>
-</g>
-<!-- A3&#45;&gt;A4 -->
-<g id="edge2" class="edge">
-<title>A3&#45;&gt;A4</title>
-<path fill="none" stroke="#000000" d="M208,-1029.7414C208,-998.6043 208,-957.5621 208,-918.0536"/>
-<polygon fill="none" stroke="#000000" points="204.5001,-1029.9047 208,-1039.9048 211.5001,-1029.9048 204.5001,-1029.9047"/>
-</g>
-<!-- A5 -->
-<g id="node6" class="node">
-<title>A5</title>
-<polygon fill="none" stroke="#000000" points="145,-566 145,-598 259,-598 259,-566 145,-566"/>
-<text text-anchor="start" x="188.108" y="-579" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">Talent</text>
-<polygon fill="none" stroke="#000000" points="145,-486 145,-566 259,-566 259,-486 145,-486"/>
-<text text-anchor="start" x="154.763" y="-547" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">await_conn_resp_cnt</text>
-<text text-anchor="start" x="189.7775" y="-535" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">id_str</text>
-<text text-anchor="start" x="170.6" y="-523" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">contact_name</text>
-<text text-anchor="start" x="173.94" y="-511" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">contact_mail</text>
-<text text-anchor="start" x="188.112" y="-499" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">switch</text>
-<polygon fill="none" stroke="#000000" points="145,-370 145,-486 259,-486 259,-370 145,-370"/>
-<text text-anchor="start" x="159.4925" y="-467" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">msg_contact_info()</text>
-<text text-anchor="start" x="161.4325" y="-455" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">msg_ota_update()</text>
-<text text-anchor="start" x="167.2765" y="-443" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">msg_get_time()</text>
-<text text-anchor="start" x="155.3285" y="-431" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">msg_collector_data()</text>
-<text text-anchor="start" x="157.2735" y="-419" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">msg_inverter_data()</text>
-<text text-anchor="start" x="166.4405" y="-407" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">msg_unknown()</text>
-<text text-anchor="start" x="187.0025" y="-383" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">close()</text>
-</g>
-<!-- A4&#45;&gt;A5 -->
-<g id="edge3" class="edge">
-<title>A4&#45;&gt;A5</title>
-<path fill="none" stroke="#000000" d="M205.1775,-643.9363C204.8732,-628.6188 204.5665,-613.1783 204.2698,-598.2481"/>
-<polygon fill="none" stroke="#000000" points="201.679,-644.0493 205.377,-653.9777 208.6776,-643.9102 201.679,-644.0493"/>
-</g>
-<!-- A6 -->
-<g id="node7" class="node">
-<title>A6</title>
-<polygon fill="none" stroke="#000000" points="412,-530 412,-562 503,-562 503,-530 412,-530"/>
-<text text-anchor="start" x="429.995" y="-543" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">SolarmanV5</text>
-<polygon fill="none" stroke="#000000" points="412,-462 412,-530 503,-530 503,-462 412,-462"/>
-<text text-anchor="start" x="442.498" y="-511" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">control</text>
-<text text-anchor="start" x="445.5575" y="-499" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">serial</text>
-<text text-anchor="start" x="450.556" y="-487" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">snr</text>
-<text text-anchor="start" x="443.612" y="-475" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">switch</text>
-<polygon fill="none" stroke="#000000" points="412,-406 412,-462 503,-462 503,-406 412,-406"/>
-<text text-anchor="start" x="421.9405" y="-443" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">msg_unknown()</text>
-<text text-anchor="start" x="442.5025" y="-419" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">close()</text>
-</g>
-<!-- A4&#45;&gt;A6 -->
-<g id="edge4" class="edge">
-<title>A4&#45;&gt;A6</title>
-<path fill="none" stroke="#000000" d="M281.898,-681.5056C290.821,-671.6784 300.2479,-662.304 310,-654 345.4324,-623.8293 370.2318,-638.0075 402,-604 413.2639,-591.9422 422.5424,-577.1747 430.0614,-562.1755"/>
-<polygon fill="none" stroke="#000000" points="279.184,-679.2912 275.1758,-689.0986 284.4251,-683.9313 279.184,-679.2912"/>
-</g>
-<!-- A7 -->
-<g id="node8" class="node">
-<title>A7</title>
-<polygon fill="none" stroke="#000000" points="133,-258 133,-290 283,-290 283,-258 133,-258"/>
-<text text-anchor="start" x="176.0455" y="-271" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">ConnectionG3</text>
-<polygon fill="none" stroke="#000000" points="133,-226 133,-258 283,-258 283,-226 133,-226"/>
-<text text-anchor="start" x="142.987" y="-239" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">remoteStream:ConnectionG3</text>
-<polygon fill="none" stroke="#000000" points="133,-194 133,-226 283,-226 283,-194 133,-194"/>
-<text text-anchor="start" x="193.0025" y="-207" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">close()</text>
-</g>
-<!-- A5&#45;&gt;A7 -->
-<g id="edge5" class="edge">
-<title>A5&#45;&gt;A7</title>
-<path fill="none" stroke="#000000" d="M205.0858,-359.5407C205.6971,-334.8843 206.3036,-310.4196 206.8038,-290.2462"/>
-<polygon fill="none" stroke="#000000" points="201.5821,-359.6485 204.8331,-369.7323 208.58,-359.8221 201.5821,-359.6485"/>
-</g>
-<!-- A8 -->
-<g id="node9" class="node">
-<title>A8</title>
-<polygon fill="none" stroke="#000000" points="319,-258 319,-290 475,-290 475,-258 319,-258"/>
-<text text-anchor="start" x="361.711" y="-271" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">ConnectionG3P</text>
-<polygon fill="none" stroke="#000000" points="319,-226 319,-258 475,-258 475,-226 319,-226"/>
-<text text-anchor="start" x="328.6525" y="-239" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">remoteStream:ConnectionG3P</text>
-<polygon fill="none" stroke="#000000" points="319,-194 319,-226 475,-226 475,-194 319,-194"/>
-<text text-anchor="start" x="382.0025" y="-207" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">close()</text>
-</g>
-<!-- A6&#45;&gt;A8 -->
-<g id="edge6" class="edge">
-<title>A6&#45;&gt;A8</title>
-<path fill="none" stroke="#000000" d="M435.1335,-395.8051C426.2731,-360.0682 416.3888,-320.2015 408.9039,-290.0125"/>
-<polygon fill="none" stroke="#000000" points="431.7989,-396.8999 437.6026,-405.7637 438.5932,-395.2153 431.7989,-396.8999"/>
-</g>
-<!-- A7&#45;&gt;A7 -->
-<g id="edge13" class="edge">
-<title>A7&#45;&gt;A7</title>
-<path fill="none" stroke="#000000" d="M283.1684,-272.6238C293.8394,-267.6708 301,-257.4629 301,-242 301,-231.1277 297.4599,-222.8533 291.6486,-217.1769"/>
-<polygon fill="#000000" stroke="#000000" points="283.1684,-211.3762 293.9628,-213.3079 287.2953,-214.1991 291.4222,-217.0221 291.4222,-217.0221 291.4222,-217.0221 287.2953,-214.1991 288.8816,-220.7363 283.1684,-211.3762 283.1684,-211.3762"/>
-<text text-anchor="middle" x="302.9014" y="-211.6335" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">0..1</text>
-<text text-anchor="middle" x="295.2075" y="-253.6532" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">has</text>
 </g>
 <!-- A11 -->
 <g id="node12" class="node">
 <title>A11</title>
-<polygon fill="none" stroke="#000000" points="73,-88 73,-120 195,-120 195,-88 73,-88"/>
+<polygon fill="none" stroke="#000000" points="568.348,-324 568.348,-356 676.348,-356 676.348,-324 568.348,-324"/>
-<text text-anchor="start" x="110.3845" y="-101" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">InverterG3</text>
+<text text-anchor="start" x="605.4015" y="-337" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">Inverter</text>
-<polygon fill="none" stroke="#000000" points="73,-56 73,-88 195,-88 195,-56 73,-56"/>
+<polygon fill="none" stroke="#000000" points="568.348,-232 568.348,-324 676.348,-324 676.348,-232 568.348,-232"/>
-<text text-anchor="start" x="103.4355" y="-69" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">__ha_restarts</text>
+<text text-anchor="start" x="598.452" y="-305" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">cls.db_stat</text>
-<polygon fill="none" stroke="#000000" points="73,0 73,-56 195,-56 195,0 73,0"/>
+<text text-anchor="start" x="591.7885" y="-293" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">cls.entity_prfx</text>
-<text text-anchor="start" x="82.6035" y="-37" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">async_create_remote()</text>
+<text text-anchor="start" x="582.6235" y="-281" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">cls.discovery_prfx</text>
-<text text-anchor="start" x="119.0025" y="-13" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">close()</text>
+<text text-anchor="start" x="582.0595" y="-269" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">cls.proxy_node_id</text>
+<text text-anchor="start" x="578.1705" y="-257" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">cls.proxy_unique_id</text>
+<text text-anchor="start" x="594.0135" y="-245" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">cls.mqtt:Mqtt</text>
+<polygon fill="none" stroke="#000000" points="568.348,-212 568.348,-232 676.348,-232 676.348,-212 568.348,-212"/>
 </g>
-<!-- A7&#45;&gt;A11 -->
+<!-- A2&#45;&gt;A11 -->
-<g id="edge12" class="edge">
+<g id="edge13" class="edge">
-<title>A7&#45;&gt;A11</title>
+<title>A2&#45;&gt;A11</title>
-<path fill="none" stroke="#000000" d="M184.5103,-184.2281C176.2169,-163.8307 166.8737,-140.8515 158.4988,-120.2539"/>
+<path fill="none" stroke="#000000" d="M622.348,-507.8316C622.348,-462.6124 622.348,-402.6972 622.348,-356.2361"/>
-<polygon fill="none" stroke="#000000" points="181.3548,-185.7599 188.3636,-193.7052 187.8393,-183.1233 181.3548,-185.7599"/>
 </g>
-<!-- A8&#45;&gt;A8 -->
+<!-- A3 -->
-<g id="edge15" class="edge">
+<g id="node4" class="node">
-<title>A8&#45;&gt;A8</title>
+<title>A3</title>
-<path fill="none" stroke="#000000" d="M475.3471,-272.2739C485.9443,-267.1987 493,-257.1074 493,-242 493,-231.3776 489.5118,-223.2351 483.7569,-217.5725"/>
+<polygon fill="none" stroke="#000000" points="257.348,-366 257.348,-398 364.348,-398 364.348,-366 257.348,-366"/>
-<polygon fill="#000000" stroke="#000000" points="475.3471,-211.7261 486.1266,-213.7393 479.4525,-214.5802 483.5579,-217.4342 483.5579,-217.4342 483.5579,-217.4342 479.4525,-214.5802 480.9893,-221.1291 475.3471,-211.7261 475.3471,-211.7261"/>
+<text text-anchor="start" x="293.0655" y="-379" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">Modbus</text>
-<text text-anchor="middle" x="495.0548" y="-212.1325" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">0..1</text>
+<polygon fill="none" stroke="#000000" points="257.348,-226 257.348,-366 364.348,-366 364.348,-226 257.348,-226"/>
-<text text-anchor="middle" x="487.2174" y="-253.1774" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">has</text>
+<text text-anchor="start" x="302.5095" y="-347" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">que</text>
+<text text-anchor="start" x="283.338" y="-323" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">snd_handler</text>
+<text text-anchor="start" x="284.453" y="-311" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">rsp_handler</text>
+<text text-anchor="start" x="266.9565" y="-299" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">timeout:max_retires</text>
+<text text-anchor="start" x="292.79" y="-287" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">last_xxx</text>
+<text text-anchor="start" x="304.7395" y="-275" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">err</text>
+<text text-anchor="start" x="291.4015" y="-263" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">retry_cnt</text>
+<text text-anchor="start" x="289.727" y="-251" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">req_pend</text>
+<text text-anchor="start" x="304.1845" y="-239" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">tim</text>
+<polygon fill="none" stroke="#000000" points="257.348,-170 257.348,-226 364.348,-226 364.348,-170 257.348,-170"/>
+<text text-anchor="start" x="284.738" y="-207" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">build_msg()</text>
+<text text-anchor="start" x="288.072" y="-195" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">recv_req()</text>
+<text text-anchor="start" x="285.572" y="-183" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">recv_resp()</text>
 </g>
-<!-- A12 -->
+<!-- A4 -->
-<g id="node13" class="node">
+<g id="node5" class="node">
-<title>A12</title>
+<title>A4</title>
-<polygon fill="none" stroke="#000000" points="274,-88 274,-120 396,-120 396,-88 274,-88"/>
+<polygon fill="none" stroke="#000000" points="263.348,-1200 263.348,-1232 334.348,-1232 334.348,-1200 263.348,-1200"/>
-<text text-anchor="start" x="308.05" y="-101" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">InverterG3P</text>
+<text text-anchor="start" x="273.293" y="-1213" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">IterRegistry</text>
-<polygon fill="none" stroke="#000000" points="274,-56 274,-88 396,-88 396,-56 274,-56"/>
+<polygon fill="none" stroke="#000000" points="263.348,-1180 263.348,-1200 334.348,-1200 334.348,-1180 263.348,-1180"/>
-<text text-anchor="start" x="304.4355" y="-69" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">__ha_restarts</text>
+<polygon fill="none" stroke="#000000" points="263.348,-1148 263.348,-1180 334.348,-1180 334.348,-1148 263.348,-1148"/>
-<polygon fill="none" stroke="#000000" points="274,0 274,-56 396,-56 396,0 274,0"/>
+<text text-anchor="start" x="280.787" y="-1161" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">__iter__</text>
-<text text-anchor="start" x="283.6035" y="-37" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">async_create_remote()</text>
-<text text-anchor="start" x="320.0025" y="-13" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">close()</text>
 </g>
-<!-- A8&#45;&gt;A12 -->
+<!-- A5 -->
-<g id="edge14" class="edge">
+<g id="node6" class="node">
-<title>A8&#45;&gt;A12</title>
+<title>A5</title>
-<path fill="none" stroke="#000000" d="M377.3195,-184.2281C370.3709,-163.8307 362.5428,-140.8515 355.526,-120.2539"/>
+<polygon fill="none" stroke="#000000" points="231.348,-994 231.348,-1026 365.348,-1026 365.348,-994 231.348,-994"/>
-<polygon fill="none" stroke="#000000" points="374.0102,-185.368 380.5479,-193.7052 380.6363,-183.1107 374.0102,-185.368"/>
+<text text-anchor="start" x="278.0655" y="-1007" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">Message</text>
+<polygon fill="none" stroke="#000000" points="231.348,-818 231.348,-994 365.348,-994 365.348,-818 231.348,-818"/>
+<text text-anchor="start" x="261.6745" y="-975" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">server_side:bool</text>
+<text text-anchor="start" x="258.891" y="-963" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">header_valid:bool</text>
+<text text-anchor="start" x="251.662" y="-951" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">header_len:unsigned</text>
+<text text-anchor="start" x="257.496" y="-939" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">data_len:unsigned</text>
+<text text-anchor="start" x="276.6725" y="-927" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">unique_id</text>
+<text text-anchor="start" x="280.5615" y="-915" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">node_id</text>
+<text text-anchor="start" x="277.5065" y="-903" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">sug_area</text>
+<text text-anchor="start" x="248.337" y="-891" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">_recv_buffer:bytearray</text>
+<text text-anchor="start" x="246.9425" y="-879" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">_send_buffer:bytearray</text>
+<text text-anchor="start" x="241.1145" y="-867" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">_forward_buffer:bytearray</text>
+<text text-anchor="start" x="280.5615" y="-855" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">db:Infos</text>
+<text text-anchor="start" x="269.174" y="-843" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">new_data:list</text>
+<text text-anchor="start" x="287.51" y="-831" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">state</text>
+<polygon fill="none" stroke="#000000" points="231.348,-750 231.348,-818 365.348,-818 365.348,-750 231.348,-750"/>
+<text text-anchor="start" x="248.0575" y="-799" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">_read():void&lt;abstract&gt;</text>
+<text text-anchor="start" x="272.7925" y="-787" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">close():void</text>
+<text text-anchor="start" x="258.6205" y="-775" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">inc_counter():void</text>
+<text text-anchor="start" x="256.9505" y="-763" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">dec_counter():void</text>
+</g>
+<!-- A4&#45;&gt;A5 -->
+<g id="edge2" class="edge">
+<title>A4&#45;&gt;A5</title>
+<path fill="none" stroke="#000000" d="M298.348,-1137.5879C298.348,-1106.6429 298.348,-1065.8843 298.348,-1026.2983"/>
+<polygon fill="none" stroke="#000000" points="294.8481,-1137.6902 298.348,-1147.6902 301.8481,-1137.6902 294.8481,-1137.6902"/>
+</g>
+<!-- A6 -->
+<g id="node7" class="node">
+<title>A6</title>
+<polygon fill="none" stroke="#000000" points="370.348,-668 370.348,-700 484.348,-700 484.348,-668 370.348,-668"/>
+<text text-anchor="start" x="413.456" y="-681" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">Talent</text>
+<polygon fill="none" stroke="#000000" points="370.348,-564 370.348,-668 484.348,-668 484.348,-564 370.348,-564"/>
+<text text-anchor="start" x="380.111" y="-649" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">await_conn_resp_cnt</text>
+<text text-anchor="start" x="415.1255" y="-637" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">id_str</text>
+<text text-anchor="start" x="395.948" y="-625" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">contact_name</text>
+<text text-anchor="start" x="399.288" y="-613" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">contact_mail</text>
+<text text-anchor="start" x="402.8925" y="-601" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">db:InfosG3</text>
+<text text-anchor="start" x="401.232" y="-589" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">mb:Modbus</text>
+<text text-anchor="start" x="413.46" y="-577" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">switch</text>
+<polygon fill="none" stroke="#000000" points="370.348,-448 370.348,-564 484.348,-564 484.348,-448 370.348,-448"/>
+<text text-anchor="start" x="384.8405" y="-545" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">msg_contact_info()</text>
+<text text-anchor="start" x="386.7805" y="-533" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">msg_ota_update()</text>
+<text text-anchor="start" x="392.6245" y="-521" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">msg_get_time()</text>
+<text text-anchor="start" x="380.6765" y="-509" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">msg_collector_data()</text>
+<text text-anchor="start" x="382.6215" y="-497" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">msg_inverter_data()</text>
+<text text-anchor="start" x="391.7885" y="-485" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">msg_unknown()</text>
+<text text-anchor="start" x="412.3505" y="-461" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">close()</text>
+</g>
+<!-- A5&#45;&gt;A6 -->
+<g id="edge3" class="edge">
+<title>A5&#45;&gt;A6</title>
+<path fill="none" stroke="#000000" d="M358.9294,-740.5383C364.4479,-727.1056 370.0049,-713.5794 375.4378,-700.355"/>
+<polygon fill="none" stroke="#000000" points="355.6797,-739.2382 355.117,-749.8181 362.1546,-741.8983 355.6797,-739.2382"/>
+</g>
+<!-- A7 -->
+<g id="node8" class="node">
+<title>A7</title>
+<polygon fill="none" stroke="#000000" points="127.348,-632 127.348,-664 218.348,-664 218.348,-632 127.348,-632"/>
+<text text-anchor="start" x="145.343" y="-645" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">SolarmanV5</text>
+<polygon fill="none" stroke="#000000" points="127.348,-540 127.348,-632 218.348,-632 218.348,-540 127.348,-540"/>
+<text text-anchor="start" x="157.846" y="-613" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">control</text>
+<text text-anchor="start" x="160.9055" y="-601" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">serial</text>
+<text text-anchor="start" x="165.904" y="-589" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">snr</text>
+<text text-anchor="start" x="145.058" y="-577" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">db:InfosG3P</text>
+<text text-anchor="start" x="146.732" y="-565" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">mb:Modbus</text>
+<text text-anchor="start" x="158.96" y="-553" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">switch</text>
+<polygon fill="none" stroke="#000000" points="127.348,-484 127.348,-540 218.348,-540 218.348,-484 127.348,-484"/>
+<text text-anchor="start" x="137.2885" y="-521" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">msg_unknown()</text>
+<text text-anchor="start" x="157.8505" y="-497" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">close()</text>
+</g>
+<!-- A5&#45;&gt;A7 -->
+<g id="edge4" class="edge">
+<title>A5&#45;&gt;A7</title>
+<path fill="none" stroke="#000000" d="M239.076,-740.2903C228.6761,-714.3733 218.1403,-688.1174 208.6075,-664.3611"/>
+<polygon fill="none" stroke="#000000" points="235.9268,-741.8409 242.8992,-749.8181 242.4233,-739.2339 235.9268,-741.8409"/>
+</g>
+<!-- A6&#45;&gt;A3 -->
+<g id="edge6" class="edge">
+<title>A6&#45;&gt;A3</title>
+<path fill="none" stroke="#000000" d="M376.3705,-447.6454C371.0187,-434.3805 365.5816,-420.9039 360.2423,-407.6696"/>
+<polygon fill="#000000" stroke="#000000" points="356.3743,-398.0824 364.289,-405.6724 358.2451,-402.7192 360.1158,-407.3561 360.1158,-407.3561 360.1158,-407.3561 358.2451,-402.7192 355.9427,-409.0397 356.3743,-398.0824 356.3743,-398.0824"/>
+<text text-anchor="middle" x="370.9946" y="-408.7296" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">1</text>
+<text text-anchor="middle" x="361.7502" y="-430.9982" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">has</text>
+</g>
+<!-- A8 -->
+<g id="node9" class="node">
+<title>A8</title>
+<polygon fill="none" stroke="#000000" points="382.348,-300 382.348,-332 532.348,-332 532.348,-300 382.348,-300"/>
+<text text-anchor="start" x="425.3935" y="-313" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">ConnectionG3</text>
+<polygon fill="none" stroke="#000000" points="382.348,-268 382.348,-300 532.348,-300 532.348,-268 382.348,-268"/>
+<text text-anchor="start" x="392.335" y="-281" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">remoteStream:ConnectionG3</text>
+<polygon fill="none" stroke="#000000" points="382.348,-236 382.348,-268 532.348,-268 532.348,-236 382.348,-236"/>
+<text text-anchor="start" x="442.3505" y="-249" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">close()</text>
+</g>
+<!-- A6&#45;&gt;A8 -->
+<g id="edge5" class="edge">
+<title>A6&#45;&gt;A8</title>
+<path fill="none" stroke="#000000" d="M441.464,-437.5454C445.3714,-399.7739 449.3591,-361.2265 452.3615,-332.203"/>
+<polygon fill="none" stroke="#000000" points="437.9668,-437.3383 440.4192,-447.6454 444.9297,-438.0587 437.9668,-437.3383"/>
+</g>
+<!-- A7&#45;&gt;A3 -->
+<g id="edge8" class="edge">
+<title>A7&#45;&gt;A3</title>
+<path fill="none" stroke="#000000" d="M210.935,-483.8952C216.3404,-471.7801 221.9084,-459.553 227.348,-448 235.1472,-431.4354 243.6196,-414.0579 252.0717,-397.0641"/>
+<polygon fill="#000000" stroke="#000000" points="256.7608,-387.6701 256.3209,-398.6272 254.5277,-392.1437 252.2946,-396.6174 252.2946,-396.6174 252.2946,-396.6174 254.5277,-392.1437 248.2683,-394.6076 256.7608,-387.6701 256.7608,-387.6701"/>
+<text text-anchor="middle" x="256.228" y="-404.663" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">1</text>
+<text text-anchor="middle" x="210.6174" y="-460.8977" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">has</text>
 </g>
 <!-- A9 -->
 <g id="node10" class="node">
 <title>A9</title>
-<polygon fill="none" stroke="#000000" points="277,-572 277,-604 393,-604 393,-572 277,-572"/>
+<polygon fill="none" stroke="#000000" points="64.348,-300 64.348,-332 220.348,-332 220.348,-300 64.348,-300"/>
-<text text-anchor="start" x="305.274" y="-585" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">AsyncStream</text>
+<text text-anchor="start" x="107.059" y="-313" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">ConnectionG3P</text>
-<polygon fill="none" stroke="#000000" points="277,-492 277,-572 393,-572 393,-492 277,-492"/>
+<polygon fill="none" stroke="#000000" points="64.348,-268 64.348,-300 220.348,-300 220.348,-268 64.348,-268"/>
-<text text-anchor="start" x="320.553" y="-553" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">reader</text>
+<text text-anchor="start" x="74.0005" y="-281" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">remoteStream:ConnectionG3P</text>
-<text text-anchor="start" x="322.783" y="-541" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">writer</text>
+<polygon fill="none" stroke="#000000" points="64.348,-236 64.348,-268 220.348,-268 220.348,-236 64.348,-236"/>
-<text text-anchor="start" x="324.997" y="-529" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">addr</text>
+<text text-anchor="start" x="127.3505" y="-249" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">close()</text>
-<text text-anchor="start" x="320.553" y="-517" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">r_addr</text>
-<text text-anchor="start" x="321.108" y="-505" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">l_addr</text>
-<polygon fill="none" stroke="#000000" points="277,-364 277,-492 393,-492 393,-364 277,-364"/>
-<text text-anchor="start" x="286.6575" y="-473" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">&lt;async&gt;server_loop()</text>
-<text text-anchor="start" x="288.878" y="-461" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">&lt;async&gt;client_loop()</text>
-<text text-anchor="start" x="306.654" y="-449" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">&lt;async&gt;loop</text>
-<text text-anchor="start" x="322.782" y="-437" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">disc()</text>
-<text text-anchor="start" x="320.0025" y="-425" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">close()</text>
-<text text-anchor="start" x="300.2705" y="-401" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">__async_read()</text>
-<text text-anchor="start" x="299.721" y="-389" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">__async_write()</text>
-<text text-anchor="start" x="293.607" y="-377" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">__async_forward()</text>
 </g>
-<!-- A9&#45;&gt;A7 -->
+<!-- A7&#45;&gt;A9 -->
 <g id="edge7" class="edge">
-<title>A9&#45;&gt;A7</title>
+<title>A7&#45;&gt;A9</title>
-<path fill="none" stroke="#000000" d="M272.2034,-364.3403C258.3698,-337.9803 244.4918,-311.5356 233.1958,-290.0108"/>
+<path fill="none" stroke="#000000" d="M161.9757,-473.7349C157.0236,-425.8645 151.3255,-370.7828 147.349,-332.3431"/>
-<polygon fill="none" stroke="#000000" points="269.1431,-366.041 276.8893,-373.2693 275.3415,-362.7881 269.1431,-366.041"/>
+<polygon fill="none" stroke="#000000" points="158.5098,-474.2451 163.0203,-483.8319 165.4726,-473.5248 158.5098,-474.2451"/>
 </g>
-<!-- A9&#45;&gt;A8 -->
+<!-- A8&#45;&gt;A8 -->
-<g id="edge8" class="edge">
+<g id="edge15" class="edge">
-<title>A9&#45;&gt;A8</title>
+<title>A8&#45;&gt;A8</title>
-<path fill="none" stroke="#000000" d="M368.3237,-353.9299C374.1595,-331.1516 379.8848,-308.8044 384.6662,-290.1415"/>
+<path fill="none" stroke="#000000" d="M532.5164,-321.6908C543.1874,-315.5948 550.348,-303.0313 550.348,-284 550.348,-270.3213 546.6488,-259.9838 540.6058,-252.9875"/>
-<polygon fill="none" stroke="#000000" points="364.9098,-353.1532 365.8184,-363.709 371.6908,-354.8905 364.9098,-353.1532"/>
+<polygon fill="#000000" stroke="#000000" points="532.5164,-246.3092 543.0929,-249.2054 536.3722,-249.4924 540.228,-252.6756 540.228,-252.6756 540.228,-252.6756 536.3722,-249.4924 537.3632,-256.1459 532.5164,-246.3092 532.5164,-246.3092"/>
+<text text-anchor="middle" x="551.8757" y="-248.3308" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">0..1</text>
+<text text-anchor="middle" x="543.0584" y="-301.6947" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">has</text>
 </g>
-<!-- A10&#45;&gt;A11 -->
+<!-- A12 -->
-<g id="edge9" class="edge">
+<g id="node13" class="node">
-<title>A10&#45;&gt;A11</title>
+<title>A12</title>
-<path fill="none" stroke="#000000" d="M93.7037,-160.4648C99.1515,-146.8826 104.7134,-133.016 109.8967,-120.0931"/>
+<polygon fill="none" stroke="#000000" points="478.348,-88 478.348,-120 600.348,-120 600.348,-88 478.348,-88"/>
-<polygon fill="none" stroke="#000000" points="90.4307,-159.2232 89.9564,-169.8074 96.9276,-161.8291 90.4307,-159.2232"/>
+<text text-anchor="start" x="515.7325" y="-101" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">InverterG3</text>
+<polygon fill="none" stroke="#000000" points="478.348,-56 478.348,-88 600.348,-88 600.348,-56 478.348,-56"/>
+<text text-anchor="start" x="508.7835" y="-69" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">__ha_restarts</text>
+<polygon fill="none" stroke="#000000" points="478.348,0 478.348,-56 600.348,-56 600.348,0 478.348,0"/>
+<text text-anchor="start" x="487.9515" y="-37" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">async_create_remote()</text>
+<text text-anchor="start" x="524.3505" y="-13" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">close()</text>
 </g>
-<!-- A10&#45;&gt;A12 -->
+<!-- A8&#45;&gt;A12 -->
-<g id="edge10" class="edge">
+<g id="edge14" class="edge">
-<title>A10&#45;&gt;A12</title>
+<title>A8&#45;&gt;A12</title>
-<path fill="none" stroke="#000000" d="M122.8753,-170.8927C123.2497,-170.5927 123.6246,-170.2951 124,-170 149.1284,-150.2443 220.9786,-114.1777 273.8825,-88.7388"/>
+<path fill="none" stroke="#000000" d="M478.5265,-226.1465C490.409,-193.6871 505.2165,-153.2373 517.2458,-120.3767"/>
-<polygon fill="none" stroke="#000000" points="120.4501,-168.3606 115.1024,-177.5068 124.9865,-173.6918 120.4501,-168.3606"/>
+<polygon fill="none" stroke="#000000" points="475.09,-225.3526 474.9391,-235.9464 481.6634,-227.759 475.09,-225.3526"/>
+</g>
+<!-- A9&#45;&gt;A9 -->
+<g id="edge17" class="edge">
+<title>A9&#45;&gt;A9</title>
+<path fill="none" stroke="#000000" d="M220.6951,-321.2601C231.2923,-315.0138 238.348,-302.5938 238.348,-284 238.348,-270.6357 234.703,-260.4608 228.7179,-253.4753"/>
+<polygon fill="#000000" stroke="#000000" points="220.6951,-246.7399 231.2473,-249.7232 224.5245,-249.9548 228.3539,-253.1697 228.3539,-253.1697 228.3539,-253.1697 224.5245,-249.9548 225.4605,-256.6162 220.6951,-246.7399 220.6951,-246.7399"/>
+<text text-anchor="middle" x="240.0123" y="-248.9211" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">0..1</text>
+<text text-anchor="middle" x="231.039" y="-301.1428" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">has</text>
 </g>
 <!-- A13 -->
 <g id="node14" class="node">
 <title>A13</title>
-<polygon fill="none" stroke="#000000" points="350,-1164 350,-1196 453,-1196 453,-1164 350,-1164"/>
+<polygon fill="none" stroke="#000000" points="251.348,-88 251.348,-120 373.348,-120 373.348,-88 251.348,-88"/>
-<text text-anchor="start" x="390.662" y="-1177" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">Infos</text>
+<text text-anchor="start" x="285.398" y="-101" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">InverterG3P</text>
-<polygon fill="none" stroke="#000000" points="350,-1108 350,-1164 453,-1164 453,-1108 350,-1108"/>
+<polygon fill="none" stroke="#000000" points="251.348,-56 251.348,-88 373.348,-88 373.348,-56 251.348,-56"/>
-<text text-anchor="start" x="393.4415" y="-1145" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">stat</text>
+<text text-anchor="start" x="281.7835" y="-69" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">__ha_restarts</text>
-<text text-anchor="start" x="368.986" y="-1133" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">new_stat_data</text>
+<polygon fill="none" stroke="#000000" points="251.348,0 251.348,-56 373.348,-56 373.348,0 251.348,0"/>
-<text text-anchor="start" x="382.6035" y="-1121" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">info_dev</text>
+<text text-anchor="start" x="260.9515" y="-37" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">async_create_remote()</text>
-<polygon fill="none" stroke="#000000" points="350,-968 350,-1108 453,-1108 453,-968 350,-968"/>
+<text text-anchor="start" x="297.3505" y="-13" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">close()</text>
-<text text-anchor="start" x="377.3355" y="-1089" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">static_init()</text>
+</g>
-<text text-anchor="start" x="375.3845" y="-1077" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">dev_value()</text>
+<!-- A9&#45;&gt;A13 -->
-<text text-anchor="start" x="372.3305" y="-1065" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">inc_counter()</text>
+<g id="edge16" class="edge">
-<text text-anchor="start" x="370.6605" y="-1053" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">dec_counter()</text>
+<title>A9&#45;&gt;A13</title>
-<text text-anchor="start" x="368.71" y="-1041" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">ha_proxy_conf</text>
+<path fill="none" stroke="#000000" d="M184.9859,-227.8183C209.8288,-195.0842 241.1576,-153.8039 266.5264,-120.3767"/>
-<text text-anchor="start" x="383.713" y="-1029" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">ha_conf</text>
+<polygon fill="none" stroke="#000000" points="182.0747,-225.8647 178.8173,-235.9464 187.6507,-230.0965 182.0747,-225.8647"/>
-<text text-anchor="start" x="377.8745" y="-1017" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">update_db</text>
+</g>
-<text text-anchor="start" x="362.037" y="-1005" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">set_db_def_value</text>
+<!-- A10 -->
-<text text-anchor="start" x="371.4855" y="-993" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">get_db_value</text>
+<g id="node11" class="node">
-<text text-anchor="start" x="359.8225" y="-981" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">ignore_this_device</text>
+<title>A10</title>
+<polygon fill="none" stroke="#000000" points="236.348,-662 236.348,-694 352.348,-694 352.348,-662 236.348,-662"/>
+<text text-anchor="start" x="264.622" y="-675" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">AsyncStream</text>
+<polygon fill="none" stroke="#000000" points="236.348,-582 236.348,-662 352.348,-662 352.348,-582 236.348,-582"/>
+<text text-anchor="start" x="279.901" y="-643" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">reader</text>
+<text text-anchor="start" x="282.131" y="-631" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">writer</text>
+<text text-anchor="start" x="284.345" y="-619" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">addr</text>
+<text text-anchor="start" x="279.901" y="-607" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">r_addr</text>
+<text text-anchor="start" x="280.456" y="-595" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">l_addr</text>
+<polygon fill="none" stroke="#000000" points="236.348,-454 236.348,-582 352.348,-582 352.348,-454 236.348,-454"/>
+<text text-anchor="start" x="246.0055" y="-563" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">&lt;async&gt;server_loop()</text>
+<text text-anchor="start" x="248.226" y="-551" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">&lt;async&gt;client_loop()</text>
+<text text-anchor="start" x="266.002" y="-539" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">&lt;async&gt;loop</text>
+<text text-anchor="start" x="282.13" y="-527" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">disc()</text>
+<text text-anchor="start" x="279.3505" y="-515" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">close()</text>
+<text text-anchor="start" x="259.6185" y="-491" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">__async_read()</text>
+<text text-anchor="start" x="264.628" y="-479" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">async_write()</text>
+<text text-anchor="start" x="252.955" y="-467" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">__async_forward()</text>
+</g>
+<!-- A10&#45;&gt;A8 -->
+<g id="edge9" class="edge">
+<title>A10&#45;&gt;A8</title>
+<path fill="none" stroke="#000000" d="M357.3002,-455.2837C358.6569,-452.8318 360.0073,-450.4016 361.348,-448 383.2991,-408.6787 409.1348,-364.6637 428.4716,-332.1398"/>
+<polygon fill="none" stroke="#000000" points="354.1241,-453.7956 352.3659,-464.2436 360.2557,-457.1724 354.1241,-453.7956"/>
+</g>
+<!-- A10&#45;&gt;A9 -->
+<g id="edge10" class="edge">
+<title>A10&#45;&gt;A9</title>
+<path fill="none" stroke="#000000" d="M231.478,-454.0506C209.0706,-411.2997 185.0929,-365.5527 167.6574,-332.2876"/>
+<polygon fill="none" stroke="#000000" points="228.4903,-455.8898 236.2327,-463.1221 234.6903,-452.6401 228.4903,-455.8898"/>
+</g>
+<!-- A11&#45;&gt;A12 -->
+<g id="edge11" class="edge">
+<title>A11&#45;&gt;A12</title>
+<path fill="none" stroke="#000000" d="M592.1173,-202.4136C582.0634,-175.28 571.0546,-145.5697 561.7056,-120.3387"/>
+<polygon fill="none" stroke="#000000" points="588.8729,-203.7311 595.6294,-211.892 595.4368,-201.2989 588.8729,-203.7311"/>
+</g>
+<!-- A11&#45;&gt;A13 -->
+<g id="edge12" class="edge">
+<title>A11&#45;&gt;A13</title>
+<path fill="none" stroke="#000000" d="M586.2753,-202.8933C578.5712,-190.8884 569.6045,-179.4114 559.348,-170 530.8998,-143.8959 437.024,-105.9199 373.5518,-82.1078"/>
+<polygon fill="none" stroke="#000000" points="583.4606,-204.9994 591.6624,-211.7061 589.4331,-201.3485 583.4606,-204.9994"/>
 </g>
 <!-- A14 -->
 <g id="node15" class="node">
 <title>A14</title>
-<polygon fill="none" stroke="#000000" points="319,-802 319,-834 386,-834 386,-802 319,-802"/>
+<polygon fill="none" stroke="#000000" points="133.348,-1272 133.348,-1304 236.348,-1304 236.348,-1272 133.348,-1272"/>
-<text text-anchor="start" x="334.993" y="-815" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">InfosG3</text>
+<text text-anchor="start" x="174.01" y="-1285" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">Infos</text>
-<polygon fill="none" stroke="#000000" points="319,-782 319,-802 386,-802 386,-782 319,-782"/>
+<polygon fill="none" stroke="#000000" points="133.348,-1216 133.348,-1272 236.348,-1272 236.348,-1216 133.348,-1216"/>
-<polygon fill="none" stroke="#000000" points="319,-738 319,-782 386,-782 386,-738 319,-738"/>
+<text text-anchor="start" x="176.7895" y="-1253" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">stat</text>
-<text text-anchor="start" x="328.884" y="-763" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">ha_confs()</text>
+<text text-anchor="start" x="152.334" y="-1241" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">new_stat_data</text>
-<text text-anchor="start" x="336.668" y="-751" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">parse()</text>
+<text text-anchor="start" x="165.9515" y="-1229" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">info_dev</text>
-</g>
+<polygon fill="none" stroke="#000000" points="133.348,-1076 133.348,-1216 236.348,-1216 236.348,-1076 133.348,-1076"/>
-<!-- A13&#45;&gt;A14 -->
+<text text-anchor="start" x="160.6835" y="-1197" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">static_init()</text>
-<g id="edge16" class="edge">
+<text text-anchor="start" x="158.7325" y="-1185" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">dev_value()</text>
-<title>A13&#45;&gt;A14</title>
+<text text-anchor="start" x="155.6785" y="-1173" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">inc_counter()</text>
-<path fill="none" stroke="#000000" d="M380.4486,-957.853C373.2314,-914.2551 365.5447,-867.821 359.9831,-834.2247"/>
+<text text-anchor="start" x="154.0085" y="-1161" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">dec_counter()</text>
-<polygon fill="none" stroke="#000000" points="377.0391,-958.688 382.1254,-967.9821 383.9452,-957.5447 377.0391,-958.688"/>
+<text text-anchor="start" x="152.058" y="-1149" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">ha_proxy_conf</text>
+<text text-anchor="start" x="167.061" y="-1137" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">ha_conf</text>
+<text text-anchor="start" x="161.2225" y="-1125" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">update_db</text>
+<text text-anchor="start" x="145.385" y="-1113" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">set_db_def_value</text>
+<text text-anchor="start" x="154.8335" y="-1101" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">get_db_value</text>
+<text text-anchor="start" x="143.1705" y="-1089" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">ignore_this_device</text>
 </g>
 <!-- A15 -->
 <g id="node16" class="node">
 <title>A15</title>
-<polygon fill="none" stroke="#000000" points="417,-802 417,-834 484,-834 484,-802 417,-802"/>
+<polygon fill="none" stroke="#000000" points="386.348,-904 386.348,-936 453.348,-936 453.348,-904 386.348,-904"/>
-<text text-anchor="start" x="429.6585" y="-815" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">InfosG3P</text>
+<text text-anchor="start" x="402.341" y="-917" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">InfosG3</text>
-<polygon fill="none" stroke="#000000" points="417,-782 417,-802 484,-802 484,-782 417,-782"/>
+<polygon fill="none" stroke="#000000" points="386.348,-884 386.348,-904 453.348,-904 453.348,-884 386.348,-884"/>
-<polygon fill="none" stroke="#000000" points="417,-738 417,-782 484,-782 484,-738 417,-738"/>
+<polygon fill="none" stroke="#000000" points="386.348,-840 386.348,-884 453.348,-884 453.348,-840 386.348,-840"/>
-<text text-anchor="start" x="426.884" y="-763" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">ha_confs()</text>
+<text text-anchor="start" x="396.232" y="-865" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">ha_confs()</text>
-<text text-anchor="start" x="434.668" y="-751" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">parse()</text>
+<text text-anchor="start" x="404.016" y="-853" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">parse()</text>
 </g>
-<!-- A13&#45;&gt;A15 -->
+<!-- A14&#45;&gt;A15 -->
-<g id="edge17" class="edge">
+<g id="edge18" class="edge">
-<title>A13&#45;&gt;A15</title>
+<title>A14&#45;&gt;A15</title>
-<path fill="none" stroke="#000000" d="M421.5514,-957.853C428.7686,-914.2551 436.4553,-867.821 442.0169,-834.2247"/>
+<path fill="none" stroke="#000000" d="M242.8857,-1086.9876C246.5464,-1083.0913 250.3682,-1079.4032 254.348,-1076 298.2601,-1038.4501 335.1504,-1068.4478 374.348,-1026 397.0004,-1001.4693 408.2589,-965.3633 413.8498,-936.2357"/>
-<polygon fill="none" stroke="#000000" points="418.0548,-957.5447 419.8746,-967.9821 424.9609,-958.688 418.0548,-957.5447"/>
+<polygon fill="none" stroke="#000000" points="240.0515,-1084.9088 236.0452,-1094.717 245.2936,-1089.548 240.0515,-1084.9088"/>
 </g>
-<!-- A14&#45;&gt;A5 -->
+<!-- A16 -->
+<g id="node17" class="node">
+<title>A16</title>
+<polygon fill="none" stroke="#000000" points="142.348,-904 142.348,-936 209.348,-936 209.348,-904 142.348,-904"/>
+<text text-anchor="start" x="155.0065" y="-917" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">InfosG3P</text>
+<polygon fill="none" stroke="#000000" points="142.348,-884 142.348,-904 209.348,-904 209.348,-884 142.348,-884"/>
+<polygon fill="none" stroke="#000000" points="142.348,-840 142.348,-884 209.348,-884 209.348,-840 142.348,-840"/>
+<text text-anchor="start" x="152.232" y="-865" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">ha_confs()</text>
+<text text-anchor="start" x="160.016" y="-853" font-family="Helvetica,sans-Serif" font-size="10.00" fill="#000000">parse()</text>
+</g>
+<!-- A14&#45;&gt;A16 -->
 <g id="edge19" class="edge">
-<title>A14&#45;&gt;A5</title>
+<title>A14&#45;&gt;A16</title>
-<path fill="none" stroke="#000000" d="M328.0662,-737.8133C310.5801,-702.608 286.0413,-653.2031 263.2551,-607.3269"/>
+<path fill="none" stroke="#000000" d="M180.6399,-1065.5724C179.2846,-1020.0932 177.8303,-971.2935 176.7899,-936.3828"/>
-<polygon fill="#000000" stroke="#000000" points="258.7238,-598.2039 267.2025,-605.1583 260.948,-602.682 263.1723,-607.1601 263.1723,-607.1601 263.1723,-607.1601 260.948,-602.682 259.142,-609.1619 258.7238,-598.2039 258.7238,-598.2039"/>
+<polygon fill="none" stroke="#000000" points="177.1491,-1065.9355 180.9455,-1075.8267 184.146,-1065.7269 177.1491,-1065.9355"/>
 </g>
 <!-- A15&#45;&gt;A6 -->
-<g id="edge18" class="edge">
+<g id="edge21" class="edge">
 <title>A15&#45;&gt;A6</title>
-<path fill="none" stroke="#000000" d="M451.1169,-737.8133C452.1468,-693.3826 453.7008,-626.3353 454.9531,-572.3076"/>
+<path fill="none" stroke="#000000" d="M420.5717,-839.9684C421.4566,-805.2366 422.6992,-756.4655 423.879,-710.1572"/>
-<polygon fill="#000000" stroke="#000000" points="455.1913,-562.0332 459.4583,-572.1349 455.0754,-567.0319 454.9595,-572.0306 454.9595,-572.0306 454.9595,-572.0306 455.0754,-567.0319 450.4607,-571.9262 455.1913,-562.0332 455.1913,-562.0332"/>
+<polygon fill="#000000" stroke="#000000" points="424.1376,-700.0098 428.3813,-710.1212 424.0102,-705.0082 423.8828,-710.0066 423.8828,-710.0066 423.8828,-710.0066 424.0102,-705.0082 419.3842,-709.8919 424.1376,-700.0098 424.1376,-700.0098"/>
+</g>
+<!-- A16&#45;&gt;A7 -->
+<g id="edge20" class="edge">
+<title>A16&#45;&gt;A7</title>
+<path fill="none" stroke="#000000" d="M174.8891,-839.9684C174.4696,-796.0581 173.8357,-729.7079 173.3059,-674.2644"/>
+<polygon fill="#000000" stroke="#000000" points="173.2083,-664.0467 177.8037,-674.0032 173.2561,-669.0465 173.304,-674.0463 173.304,-674.0463 173.304,-674.0463 173.2561,-669.0465 168.8042,-674.0893 173.2083,-664.0467 173.2083,-664.0467"/>
 </g>
 </g>
 </svg>

app/proxy.yuml

@@ -4,13 +4,15 @@
 
 [note: You can stick notes on diagrams too!{bg:cornsilk}]
 [Singleton]^[Mqtt|<static>ha_restarts;<static>__client;<static>__cb_MqttIsUp|<async>publish();<async>close()]
-
+[Modbus|que;;snd_handler;rsp_handler;timeout:max_retires;last_xxx;err;retry_cnt;req_pend;tim|build_msg();recv_req();recv_resp()]
-[IterRegistry||__iter__]^[Message|server_side:bool;header_valid:bool;header_len:unsigned;data_len:unsigned;unique_id;node_id;sug_area;_recv_buffer:bytearray;_send_buffer:bytearray;_forward_buffer:bytearray;db:Infos;new_data:list|_read():void<abstract>;close():void;inc_counter():void;dec_counter():void]
+[IterRegistry||__iter__]^[Message|server_side:bool;header_valid:bool;header_len:unsigned;data_len:unsigned;unique_id;node_id;sug_area;_recv_buffer:bytearray;_send_buffer:bytearray;_forward_buffer:bytearray;db:Infos;new_data:list;state|_read():void<abstract>;close():void;inc_counter():void;dec_counter():void]
-[Message]^[Talent|await_conn_resp_cnt;id_str;contact_name;contact_mail;switch|msg_contact_info();msg_ota_update();msg_get_time();msg_collector_data();msg_inverter_data();msg_unknown();;close()]
+[Message]^[Talent|await_conn_resp_cnt;id_str;contact_name;contact_mail;db:InfosG3;mb:Modbus;switch|msg_contact_info();msg_ota_update();msg_get_time();msg_collector_data();msg_inverter_data();msg_unknown();;close()]
-[Message]^[SolarmanV5|control;serial;snr;switch|msg_unknown();;close()]
+[Message]^[SolarmanV5|control;serial;snr;db:InfosG3P;mb:Modbus;switch|msg_unknown();;close()]
 [Talent]^[ConnectionG3|remoteStream:ConnectionG3|close()]
+[Talent]has-1>[Modbus]
 [SolarmanV5]^[ConnectionG3P|remoteStream:ConnectionG3P|close()]
-[AsyncStream|reader;writer;addr;r_addr;l_addr|<async>server_loop();<async>client_loop();<async>loop;disc();close();;__async_read();__async_write();__async_forward()]^[ConnectionG3]
+[SolarmanV5]has-1>[Modbus]
+[AsyncStream|reader;writer;addr;r_addr;l_addr|<async>server_loop();<async>client_loop();<async>loop;disc();close();;__async_read();async_write();__async_forward()]^[ConnectionG3]
 [AsyncStream]^[ConnectionG3P]
 [Inverter|cls.db_stat;cls.entity_prfx;cls.discovery_prfx;cls.proxy_node_id;cls.proxy_unique_id;cls.mqtt:Mqtt|]^[InverterG3|__ha_restarts|async_create_remote();;close()]
 [Inverter]^[InverterG3P|__ha_restarts|async_create_remote();;close()]

app/requirements.txt

@@ -1,3 +1,4 @@
     aiomqtt==2.0.1
     schema==0.7.5
-    aiocron==1.8
+    aiocron==1.8
+    aiohttp==3.9.5

app/src/async_stream.py

@@ -1,42 +1,77 @@
+import asyncio
 import logging
 import traceback
-from messages import hex_dump_memory
+import time
+from asyncio import StreamReader, StreamWriter
+from messages import hex_dump_memory, State
+from typing import Self
+from itertools import count
 
+import gc
 logger = logging.getLogger('conn')
 
 
 class AsyncStream():
+    _ids = count(0)
+    MAX_PROC_TIME = 2
+    '''maximum processing time for a received msg in sec'''
+    MAX_START_TIME = 400
+    '''maximum time without a received msg in sec'''
+    MAX_INV_IDLE_TIME = 90
+    '''maximum time without a received msg from the inverter in sec'''
+    MAX_CLOUD_IDLE_TIME = 360
+    '''maximum time without a received msg from cloud side in sec'''
 
-    def __init__(self, reader, writer, addr) -> None:
+    def __init__(self, reader: StreamReader, writer: StreamWriter,
+                 addr) -> None:
         logger.debug('AsyncStream.__init__')
         self.reader = reader
         self.writer = writer
         self.addr = addr
         self.r_addr = ''
         self.l_addr = ''
+        self.conn_no = next(self._ids)
+        self.proc_start = None  # start processing start timestamp
+        self.proc_max = 0
 
-    async def server_loop(self, addr):
+    def __timeout(self) -> int:
+        if self.state == State.init:
+            to = self.MAX_START_TIME
+        else:
+            if self.server_side:
+                to = self.MAX_INV_IDLE_TIME
+            else:
+                to = self.MAX_CLOUD_IDLE_TIME
+        return to
+
+    async def server_loop(self, addr: str) -> None:
         '''Loop for receiving messages from the inverter (server-side)'''
-        logging.info(f'Accept connection from  {addr}')
+        logger.info(f'[{self.node_id}:{self.conn_no}] '
+                    f'Accept connection from {addr}')
         self.inc_counter('Inverter_Cnt')
         await self.loop()
         self.dec_counter('Inverter_Cnt')
-        logging.info(f'Server loop stopped for r{self.r_addr}')
+        logger.info(f'[{self.node_id}:{self.conn_no}] Server loop stopped for'
+                    f' r{self.r_addr}')
 
         # if the server connection closes, we also have to disconnect
         # the connection to te TSUN cloud
         if self.remoteStream:
-            logging.debug("disconnect client connection")
+            logger.info(f'[{self.node_id}:{self.conn_no}] disc client '
-            self.remoteStream.disc()
+                        f'connection: [{self.remoteStream.node_id}:'
+                        f'{self.remoteStream.conn_no}]')
+            await self.remoteStream.disc()
         try:
             await self._async_publ_mqtt_proxy_stat('proxy')
         except Exception:
             pass
 
-    async def client_loop(self, addr):
+    async def client_loop(self, addr: str) -> None:
         '''Loop for receiving messages from the TSUN cloud (client-side)'''
         clientStream = await self.remoteStream.loop()
-        logging.info(f'Client loop stopped for l{clientStream.l_addr}')
+        logger.info(f'[{clientStream.node_id}:{clientStream.conn_no}] '
+                    'Client loop stopped for'
+                    f' l{clientStream.l_addr}')
 
         # if the client connection closes, we don't touch the server
         # connection. Instead we erase the client connection stream,
@@ -52,69 +87,120 @@ class AsyncStream():
             # than erase client connection
             self.remoteStream = None
 
-    async def loop(self):
+    async def loop(self) -> Self:
+        """Async loop handler for precessing all received messages"""
         self.r_addr = self.writer.get_extra_info('peername')
         self.l_addr = self.writer.get_extra_info('sockname')
-
+        self.proc_start = time.time()
         while True:
             try:
-                await self.__async_read()
+                proc = time.time() - self.proc_start
+                if proc > self.proc_max:
+                    self.proc_max = proc
+                self.proc_start = None
+                dead_conn_to = self.__timeout()
+                await asyncio.wait_for(self.__async_read(),
+                                       dead_conn_to)
 
                 if self.unique_id:
-                    await self.__async_write()
+                    await self.async_write()
                     await self.__async_forward()
                     await self.async_publ_mqtt()
 
-            except (ConnectionResetError,
+            except asyncio.TimeoutError:
-                    ConnectionAbortedError,
+                logger.warning(f'[{self.node_id}:{self.conn_no}] Dead '
-                    BrokenPipeError,
+                               f'connection timeout ({dead_conn_to}s) '
-                    RuntimeError) as error:
+                               f'for {self.l_addr}')
-                logger.warning(f'In loop for l{self.l_addr} | '
+                await self.disc()
-                               f'r{self.r_addr}: {error}')
                 self.close()
                 return self
+
+            except OSError as error:
+                logger.error(f'[{self.node_id}:{self.conn_no}] '
+                             f'{error} for l{self.l_addr} | '
+                             f'r{self.r_addr}')
+                await self.disc()
+                self.close()
+                return self
+
+            except RuntimeError as error:
+                logger.info(f'[{self.node_id}:{self.conn_no}] '
+                            f'{error} for {self.l_addr}')
+                await self.disc()
+                self.close()
+                return self
+
             except Exception:
                 self.inc_counter('SW_Exception')
                 logger.error(
                     f"Exception for {self.addr}:\n"
                     f"{traceback.format_exc()}")
-                self.close()
-                return self
 
-    def disc(self) -> None:
+    async def async_write(self, headline: str = 'Transmit to ') -> None:
-        logger.debug(f'AsyncStream.disc() l{self.l_addr} | r{self.r_addr}')
+        """Async write handler to transmit the send_buffer"""
-        self.writer.close()
-
-    def close(self):
-        logger.debug(f'AsyncStream.close() l{self.l_addr} | r{self.r_addr}')
-        self.writer.close()
-
-    '''
-    Our private methods
-    '''
-    async def __async_read(self) -> None:
-        data = await self.reader.read(4096)
-        if data:
-            self._recv_buffer += data
-            self.read()                # call read in parent class
-        else:
-            raise RuntimeError("Peer closed.")
-
-    async def __async_write(self) -> None:
         if self._send_buffer:
-            hex_dump_memory(logging.INFO, f'Transmit to {self.addr}:',
+            hex_dump_memory(logging.INFO, f'{headline}{self.addr}:',
                             self._send_buffer, len(self._send_buffer))
             self.writer.write(self._send_buffer)
             await self.writer.drain()
             self._send_buffer = bytearray(0)  # self._send_buffer[sent:]
 
+    async def disc(self) -> None:
+        """Async disc handler for graceful disconnect"""
+        if self.writer.is_closing():
+            return
+        logger.debug(f'AsyncStream.disc() l{self.l_addr} | r{self.r_addr}')
+        self.writer.close()
+        await self.writer.wait_closed()
+
+    def close(self) -> None:
+        """close handler for a no waiting disconnect
+
+           hint: must be called before releasing the connection instance
+        """
+        self.reader.feed_eof()          # abort awaited read
+        if self.writer.is_closing():
+            return
+        logger.debug(f'AsyncStream.close() l{self.l_addr} | r{self.r_addr}')
+        self.writer.close()
+
+    def healthy(self) -> bool:
+        elapsed = 0
+        if self.proc_start is not None:
+            elapsed = time.time() - self.proc_start
+        if self.state == State.closed or elapsed > self.MAX_PROC_TIME:
+            logging.debug(f'[{self.node_id}:{self.conn_no}:'
+                          f'{type(self).__name__}]'
+                          f' act:{round(1000*elapsed)}ms'
+                          f' max:{round(1000*self.proc_max)}ms')
+            logging.debug(f'Healthy()) refs: {gc.get_referrers(self)}')
+        return elapsed < 5
+
+    '''
+    Our private methods
+    '''
+    async def __async_read(self) -> None:
+        """Async read handler to read received data from TCP stream"""
+        data = await self.reader.read(4096)
+        if data:
+            self.proc_start = time.time()
+            self._recv_buffer += data
+            wait = self.read()                # call read in parent class
+            if wait > 0:
+                await asyncio.sleep(wait)
+        else:
+            raise RuntimeError("Peer closed.")
+
     async def __async_forward(self) -> None:
-        if self._forward_buffer:
+        """forward handler transmits data over the remote connection"""
+        if not self._forward_buffer:
+            return
+        try:
             if not self.remoteStream:
                 await self.async_create_remote()
                 if self.remoteStream:
                     if self.remoteStream._init_new_client_conn():
-                        await self.remoteStream.__async_write()
+                        await self.remoteStream.async_write()
 
             if self.remoteStream:
                 self.remoteStream._update_header(self._forward_buffer)
@@ -126,6 +212,30 @@ class AsyncStream():
                 await self.remoteStream.writer.drain()
                 self._forward_buffer = bytearray(0)
 
+        except OSError as error:
+            if self.remoteStream:
+                rmt = self.remoteStream
+                self.remoteStream = None
+                logger.error(f'[{rmt.node_id}:{rmt.conn_no}] Fwd: {error} for '
+                             f'l{rmt.l_addr} | r{rmt.r_addr}')
+                await rmt.disc()
+                rmt.close()
+
+        except RuntimeError as error:
+            if self.remoteStream:
+                rmt = self.remoteStream
+                self.remoteStream = None
+                logger.info(f'[{rmt.node_id}:{rmt.conn_no}] '
+                            f'Fwd: {error} for {rmt.l_addr}')
+                await rmt.disc()
+                rmt.close()
+
+        except Exception:
+            self.inc_counter('SW_Exception')
+            logger.error(
+                f"Fwd Exception for {self.addr}:\n"
+                f"{traceback.format_exc()}")
+
     def __del__(self):
         logger.debug(
             f"AsyncStream.__del__  l{self.l_addr} | r{self.r_addr}")

app/src/config.py

@@ -3,7 +3,7 @@
 import shutil
 import tomllib
 import logging
-from schema import Schema, And, Use, Optional
+from schema import Schema, And, Or, Use, Optional
 
 
 class Config():
@@ -38,6 +38,14 @@ class Config():
             'proxy_node_id':    Use(str),
             'proxy_unique_id':  Use(str)
             },
+        'gen3plus': {
+            'at_acl': {
+                Or('mqtt', 'tsun'): {
+                    'allow': [str],
+                    Optional('block', default=[]): [str]
+                    }
+                }
+            },
         'inverters': {
             'allow_all': Use(bool), And(Use(str), lambda s: len(s) == 16): {
                 Optional('monitor_sn', default=0): Use(int),
@@ -76,51 +84,77 @@ class Config():
         )
 
     @classmethod
-    def read(cls) -> None:
+    def class_init(cls) -> None | str:  # pragma: no cover
+        try:
+            # make the default config transparaent by copying it
+            # in the config.example file
+            logging.debug('Copy Default Config to config.example.toml')
+
+            shutil.copy2("default_config.toml",
+                         "config/config.example.toml")
+        except Exception:
+            pass
+        err_str = cls.read()
+        del cls.conf_schema
+        return err_str
+
+    @classmethod
+    def _read_config_file(cls) -> dict:  # pragma: no cover
+        usr_config = {}
+
+        try:
+            with open("config/config.toml", "rb") as f:
+                usr_config = tomllib.load(f)
+        except Exception as error:
+            err = f'Config.read: {error}'
+            logging.error(err)
+            logging.info(
+                '\n  To create the missing config.toml file, '
+                'you can rename the template config.example.toml\n'
+                '  and customize it for your scenario.\n')
+        return usr_config
+
+    @classmethod
+    def read(cls, path='') -> None | str:
         '''Read config file, merge it with the default config
         and sanitize the result'''
-
+        err = None
         config = {}
         logger = logging.getLogger('data')
 
         try:
-            # make the default config transparaent by copying it
-            # in the config.example file
-            shutil.copy2("default_config.toml", "config/config.example.toml")
-
             # read example config file as default configuration
-            with open("default_config.toml", "rb") as f:
+            cls.def_config = {}
+            with open(f"{path}default_config.toml", "rb") as f:
                 def_config = tomllib.load(f)
+                cls.def_config = cls.conf_schema.validate(def_config)
 
             # overwrite the default values, with values from
             # the config.toml file
+            usr_config = cls._read_config_file()
+
+            # merge the default and the user config
+            config = def_config.copy()
+            for key in ['tsun', 'solarman', 'mqtt', 'ha', 'inverters',
+                        'gen3plus']:
+                if key in usr_config:
+                    config[key] |= usr_config[key]
+
             try:
-                with open("config/config.toml", "rb") as f:
+                cls.config = cls.conf_schema.validate(config)
-                    usr_config = tomllib.load(f)
             except Exception as error:
-                logging.error(f'Config.read: {error}')
+                err = f'Config.read: {error}'
-                logging.info(
+                logging.error(err)
-                    '\n  To create the missing config.toml file, '
-                    'you can rename the template config.example.toml\n'
-                    '  and customize it for your scenario.\n')
-                usr_config = def_config
 
-            config['tsun'] = def_config['tsun'] | usr_config['tsun']
-            config['solarman'] = def_config['solarman'] | \
-                usr_config['solarman']
-            config['mqtt'] = def_config['mqtt'] | usr_config['mqtt']
-            config['ha'] = def_config['ha'] | usr_config['ha']
-            config['inverters'] = def_config['inverters'] | \
-                usr_config['inverters']
-
-            cls.config = cls.conf_schema.validate(config)
-            cls.def_config = cls.conf_schema.validate(def_config)
             # logging.debug(f'Readed config: "{cls.config}" ')
 
         except Exception as error:
-            logger.error(f'Config.read: {error}')
+            err = f'Config.read: {error}'
+            logger.error(err)
             cls.config = {}
 
+        return err
+
     @classmethod
     def get(cls, member: str = None):
         '''Get a named attribute from the proxy config. If member ==

app/src/gen3/connection_g3.py

@@ -1,5 +1,6 @@
 import logging
 # import gc
+from asyncio import StreamReader, StreamWriter
 from async_stream import AsyncStream
 from gen3.talent import Talent
 
@@ -8,12 +9,13 @@ logger = logging.getLogger('conn')
 
 class ConnectionG3(AsyncStream, Talent):
 
-    def __init__(self, reader, writer, addr, remote_stream, server_side: bool,
+    def __init__(self, reader: StreamReader, writer: StreamWriter,
+                 addr, remote_stream: 'ConnectionG3', server_side: bool,
                  id_str=b'') -> None:
         AsyncStream.__init__(self, reader, writer, addr)
         Talent.__init__(self, server_side, id_str)
 
-        self.remoteStream = remote_stream
+        self.remoteStream: 'ConnectionG3' = remote_stream
 
     '''
     Our puplic methods
@@ -29,6 +31,10 @@ class ConnectionG3(AsyncStream, Talent):
     async def async_publ_mqtt(self) -> None:
         pass
 
+    def healthy(self) -> bool:
+        logger.debug('ConnectionG3 healthy()')
+        return AsyncStream.healthy(self)
+
     '''
     Our private methods
     '''

app/src/gen3/infos_g3.py

@@ -30,6 +30,7 @@ class RegisterMap:
         0xffffff05: Register.UNKNOWN_CTRL,
         0xffffff06: Register.OTA_START_MSG,
         0xffffff07: Register.SW_EXCEPTION,
+        0xffffff08: Register.MAX_DESIGNED_POWER,
         0xfffffffe: Register.TEST_REG1,
         0xffffffff: Register.TEST_REG2,
         0x00000640: Register.OUTPUT_POWER,
@@ -104,7 +105,8 @@ class InfosG3(Infos):
             if res:
                 yield res
 
-    def parse(self, buf, ind=0) -> Generator[tuple[str, bool], None, None]:
+    def parse(self, buf, ind=0, node_id: str = '') -> \
+            Generator[tuple[str, bool], None, None]:
         '''parse a data sequence received from the inverter and
         stores the values in Infos.db
 
@@ -130,11 +132,24 @@ class InfosG3(Infos):
                                                            errors='replace')
                 ind += str_len+1
 
+            elif data_type == 0x00:  # 'Nul' -> end
+                i = elms  # abort the loop
+
+            elif data_type == 0x41:  # 'A' -> Nop ??
+                # result = struct.unpack_from('!l', buf, ind)[0]
+                ind += 0
+                i += 1
+                continue
+
+            elif data_type == 0x42:  # 'B' -> byte, int8
+                result = struct.unpack_from('!B', buf, ind)[0]
+                ind += 1
+
             elif data_type == 0x49:  # 'I' -> int32
                 result = struct.unpack_from('!l', buf, ind)[0]
                 ind += 4
 
-            elif data_type == 0x53:  # 'S' -> short
+            elif data_type == 0x53:  # 'S' -> short, int16
                 result = struct.unpack_from('!h', buf, ind)[0]
                 ind += 2
 
@@ -142,13 +157,14 @@ class InfosG3(Infos):
                 result = round(struct.unpack_from('!f', buf, ind)[0], 2)
                 ind += 4
 
-            elif data_type == 0x4c:  # 'L' -> int64
+            elif data_type == 0x4c:  # 'L' -> long, int64
                 result = struct.unpack_from('!q', buf, ind)[0]
                 ind += 8
 
             else:
                 self.inc_counter('Invalid_Data_Type')
                 logging.error(f"Infos.parse: data_type: {data_type}"
+                              f" @0x{addr:04x} No:{i}"
                               " not supported")
                 return
 
@@ -161,7 +177,8 @@ class InfosG3(Infos):
                 update = False
                 name = str(f'info-id.0x{addr:x}')
 
-            self.tracer.log(level, f'GEN3: {name} : {result}{unit}'
+            if update:
-                            f'  update: {update}')
+                self.tracer.log(level, f'[{node_id}] GEN3: {name} :'
+                                       f' {result}{unit}')
 
             i += 1

app/src/gen3/inverter_g3.py

@@ -1,7 +1,8 @@
-import asyncio
 import logging
 import traceback
 import json
+import asyncio
+from asyncio import StreamReader, StreamWriter
 from config import Config
 from inverter import Inverter
 from gen3.connection_g3 import ConnectionG3
@@ -44,7 +45,7 @@ class InverterG3(Inverter, ConnectionG3):
                  destroyed
     '''
 
-    def __init__(self, reader, writer, addr):
+    def __init__(self, reader: StreamReader, writer: StreamWriter, addr):
         super().__init__(reader, writer, addr, None, True)
         self.__ha_restarts = -1
 
@@ -56,11 +57,14 @@ class InverterG3(Inverter, ConnectionG3):
         addr = (host, port)
 
         try:
-            logging.info(f'Connected to {addr}')
+            logging.info(f'[{self.node_id}] Connect to {addr}')
             connect = asyncio.open_connection(host, port)
             reader, writer = await connect
             self.remoteStream = ConnectionG3(reader, writer, addr, self,
                                              False, self.id_str)
+            logging.info(f'[{self.remoteStream.node_id}:'
+                         f'{self.remoteStream.conn_no}] '
+                         f'Connected to {addr}')
             asyncio.create_task(self.client_loop(addr))
 
         except (ConnectionRefusedError, TimeoutError) as error:
@@ -121,7 +125,7 @@ class InverterG3(Inverter, ConnectionG3):
     def close(self) -> None:
         logging.debug(f'InverterG3.close() l{self.l_addr} | r{self.r_addr}')
         super().close()         # call close handler in the parent class
-#        logger.debug (f'Inverter refs: {gc.get_referrers(self)}')
+#         logging.info(f'Inverter refs: {gc.get_referrers(self)}')
 
     def __del__(self):
         logging.debug("InverterG3.__del__")

app/src/gen3/talent.py

@@ -4,11 +4,15 @@ import time
 from datetime import datetime
 
 if __name__ == "app.src.gen3.talent":
-    from app.src.messages import hex_dump_memory, Message
+    from app.src.messages import hex_dump_memory, Message, State
+    from app.src.modbus import Modbus
+    from app.src.my_timer import Timer
     from app.src.config import Config
     from app.src.gen3.infos_g3 import InfosG3
 else:  # pragma: no cover
-    from messages import hex_dump_memory, Message
+    from messages import hex_dump_memory, Message, State
+    from modbus import Modbus
+    from my_timer import Timer
     from config import Config
     from gen3.infos_g3 import InfosG3
 
@@ -33,31 +37,54 @@ class Control:
 
 
 class Talent(Message):
+    MB_START_TIMEOUT = 40
+    MB_REGULAR_TIMEOUT = 60
 
     def __init__(self, server_side: bool, id_str=b''):
-        super().__init__(server_side)
+        super().__init__(server_side, self.send_modbus_cb, mb_timeout=11)
         self.await_conn_resp_cnt = 0
         self.id_str = id_str
         self.contact_name = b''
         self.contact_mail = b''
+        self.ts_offset = 0        # time offset between tsun cloud and local
         self.db = InfosG3()
         self.switch = {
             0x00: self.msg_contact_info,
             0x13: self.msg_ota_update,
             0x22: self.msg_get_time,
             0x71: self.msg_collector_data,
+            # 0x76:
+            0x77: self.msg_modbus,
+            # 0x78:
             0x04: self.msg_inverter_data,
         }
+        self.log_lvl = {
+            0x00: logging.INFO,
+            0x13: logging.INFO,
+            0x22: logging.INFO,
+            0x71: logging.INFO,
+            # 0x76:
+            0x77: self.get_modbus_log_lvl,
+            # 0x78:
+            0x04: logging.INFO,
+        }
+        self.modbus_elms = 0    # for unit tests
+        self.node_id = 'G3'     # will be overwritten in __set_serial_no
+        self.mb_timer = Timer(self.mb_timout_cb, self.node_id)
 
     '''
     Our puplic methods
     '''
     def close(self) -> None:
         logging.debug('Talent.close()')
-        # we have refernces to methods of this class in self.switch
+        # we have references to methods of this class in self.switch
         # so we have to erase self.switch, otherwise this instance can't be
         # deallocated by the garbage collector ==> we get a memory leak
         self.switch.clear()
+        self.log_lvl.clear()
+        self.state = State.closed
+        self.mb_timer.close()
+        super().close()
 
     def __set_serial_no(self, serial_no: str):
 
@@ -85,7 +112,7 @@ class Talent(Message):
 
             self.unique_id = serial_no
 
-    def read(self) -> None:
+    def read(self) -> float:
         self._read()
 
         if not self.header_valid:
@@ -93,13 +120,20 @@ class Talent(Message):
 
         if self.header_valid and len(self._recv_buffer) >= (self.header_len +
                                                             self.data_len):
-            hex_dump_memory(logging.INFO, f'Received from {self.addr}:',
+            if self.state == State.init:
+                self.state = State.received     # received 1st package
+
+            log_lvl = self.log_lvl.get(self.msg_id, logging.WARNING)
+            if callable(log_lvl):
+                log_lvl = log_lvl()
+
+            hex_dump_memory(log_lvl, f'Received from {self.addr}:',
                             self._recv_buffer, self.header_len+self.data_len)
 
             self.__set_serial_no(self.id_str.decode("utf-8"))
             self.__dispatch_msg()
             self.__flush_recv_msg()
-        return
+        return 0.5  # wait 500ms before sending a response
 
     def forward(self, buffer, buflen) -> None:
         tsun = Config.get('tsun')
@@ -115,6 +149,42 @@ class Talent(Message):
                         f' Ctl: {int(self.ctrl):#02x} Msg: {fnc.__name__!r}')
         return
 
+    def send_modbus_cb(self, modbus_pdu: bytearray, log_lvl: int, state: str):
+        if self.state != State.up:
+            logger.warning(f'[{self.node_id}] ignore MODBUS cmd,'
+                           ' cause the state is not UP anymore')
+            return
+
+        self.__build_header(0x70, 0x77)
+        self._send_buffer += b'\x00\x01\xa3\x28'   # fixme
+        self._send_buffer += struct.pack('!B', len(modbus_pdu))
+        self._send_buffer += modbus_pdu
+        self.__finish_send_msg()
+
+        hex_dump_memory(log_lvl, f'Send Modbus {state}:{self.addr}:',
+                        self._send_buffer, len(self._send_buffer))
+        self.writer.write(self._send_buffer)
+        self._send_buffer = bytearray(0)  # self._send_buffer[sent:]
+
+    def _send_modbus_cmd(self, func, addr, val, log_lvl) -> None:
+        if self.state != State.up:
+            logger.log(log_lvl, f'[{self.node_id}] ignore MODBUS cmd,'
+                       ' as the state is not UP')
+            return
+        self.mb.build_msg(Modbus.INV_ADDR, func, addr, val, log_lvl)
+
+    async def send_modbus_cmd(self, func, addr, val, log_lvl) -> None:
+        self._send_modbus_cmd(func, addr, val, log_lvl)
+
+    def mb_timout_cb(self, exp_cnt):
+        self.mb_timer.start(self.MB_REGULAR_TIMEOUT)
+
+        if 0 == (exp_cnt % 30):
+            # logging.info("Regular Modbus Status request")
+            self._send_modbus_cmd(Modbus.READ_REGS, 0x2007, 2, logging.DEBUG)
+        else:
+            self._send_modbus_cmd(Modbus.READ_REGS, 0x3008, 21, logging.DEBUG)
+
     def _init_new_client_conn(self) -> bool:
         contact_name = self.contact_name
         contact_mail = self.contact_mail
@@ -156,6 +226,24 @@ class Talent(Message):
             ts = (datetime.now() - datetime(1970, 1, 1)).total_seconds()
         return round(ts*1000)
 
+    def _update_header(self, _forward_buffer):
+        '''update header for message before forwarding,
+        add time offset to timestamp'''
+        _len = len(_forward_buffer)
+        result = struct.unpack_from('!lB', _forward_buffer, 0)
+        id_len = result[1]    # len of variable id string
+        if _len < 2*id_len + 21:
+            return
+
+        result = struct.unpack_from('!B', _forward_buffer, id_len+6)
+        msg_code = result[0]
+        if msg_code == 0x71 or msg_code == 0x04:
+            result = struct.unpack_from('!q', _forward_buffer, 13+2*id_len)
+            ts = result[0] + self.ts_offset
+            logger.debug(f'offset: {self.ts_offset:08x}'
+                         f'  proxy-time: {ts:08x}')
+            struct.pack_into('!q', _forward_buffer, 13+2*id_len, ts)
+
     # check if there is a complete header in the buffer, parse it
     # and set
     #   self.header_len
@@ -190,11 +278,13 @@ class Talent(Message):
         self.header_valid = True
         return
 
-    def __build_header(self, ctrl) -> None:
+    def __build_header(self, ctrl, msg_id=None) -> None:
+        if not msg_id:
+            msg_id = self.msg_id
         self.send_msg_ofs = len(self._send_buffer)
         self._send_buffer += struct.pack(f'!l{len(self.id_str)+1}pBB',
-                                         0, self.id_str, ctrl, self.msg_id)
+                                         0, self.id_str, ctrl, msg_id)
-        fnc = self.switch.get(self.msg_id, self.msg_unknown)
+        fnc = self.switch.get(msg_id, self.msg_unknown)
         logger.info(self.__flow_str(self.server_side, 'tx') +
                     f' Ctl: {int(ctrl):#02x} Msg: {fnc.__name__!r}')
 
@@ -206,7 +296,8 @@ class Talent(Message):
         fnc = self.switch.get(self.msg_id, self.msg_unknown)
         if self.unique_id:
             logger.info(self.__flow_str(self.server_side, 'rx') +
-                        f' Ctl: {int(self.ctrl):#02x} Msg: {fnc.__name__!r}')
+                        f' Ctl: {int(self.ctrl):#02x} ({self.state}) '
+                        f'Msg: {fnc.__name__!r}')
             fnc()
         else:
             logger.info(self.__flow_str(self.server_side, 'drop') +
@@ -255,39 +346,37 @@ class Talent(Message):
         return True
 
     def msg_get_time(self):
-        tsun = Config.get('tsun')
+        if self.ctrl.is_ind():
-        if tsun['enabled']:
+            if self.data_len == 0:
-            if self.ctrl.is_ind():
+                self.state = State.pend     # block MODBUS cmds
-                if self.data_len >= 8:
+                self.mb_timer.start(self.MB_START_TIMEOUT)
-                    ts = self._timestamp()
+                ts = self._timestamp()
-                    result = struct.unpack_from('!q', self._recv_buffer,
+                logger.debug(f'time: {ts:08x}')
-                                                self.header_len)
+                self.__build_header(0x91)
-                    logger.debug(f'tsun-time: {result[0]:08x}'
+                self._send_buffer += struct.pack('!q', ts)
-                                 f'  proxy-time: {ts:08x}')
+                self.__finish_send_msg()
-            else:
+
-                logger.warning('Unknown Ctrl')
+            elif self.data_len >= 8:
-                self.inc_counter('Unknown_Ctrl')
+                ts = self._timestamp()
-            self.forward(self._recv_buffer, self.header_len+self.data_len)
+                result = struct.unpack_from('!q', self._recv_buffer,
+                                            self.header_len)
+                self.ts_offset = result[0]-ts
+                logger.debug(f'tsun-time: {int(result[0]):08x}'
+                             f'  proxy-time: {ts:08x}'
+                             f'  offset: {self.ts_offset}')
+                return  # ignore received response
         else:
-            if self.ctrl.is_ind():
+            logger.warning('Unknown Ctrl')
-                if self.data_len == 0:
+            self.inc_counter('Unknown_Ctrl')
-                    ts = self._timestamp()
-                    logger.debug(f'time: {ts:08x}')
 
-                    self.__build_header(0x91)
+        self.forward(self._recv_buffer, self.header_len+self.data_len)
-                    self._send_buffer += struct.pack('!q', ts)
-                    self.__finish_send_msg()
-
-            else:
-                logger.warning('Unknown Ctrl')
-                self.inc_counter('Unknown_Ctrl')
 
     def parse_msg_header(self):
         result = struct.unpack_from('!lB', self._recv_buffer, self.header_len)
 
         data_id = result[0]    # len of complete message
         id_len = result[1]     # len of variable id string
-        logger.debug(f'Data_ID: {data_id}   id_len:  {id_len}')
+        logger.debug(f'Data_ID: 0x{data_id:08x}   id_len:  {id_len}')
 
         msg_hdr_len = 5+id_len+9
 
@@ -321,6 +410,7 @@ class Talent(Message):
             self._send_buffer += b'\x01'
             self.__finish_send_msg()
             self.__process_data()
+            self.state = State.up  # allow MODBUS cmds
 
         elif self.ctrl.is_resp():
             return  # ignore received response
@@ -334,7 +424,7 @@ class Talent(Message):
         msg_hdr_len = self.parse_msg_header()
 
         for key, update in self.db.parse(self._recv_buffer, self.header_len
-                                         + msg_hdr_len):
+                                         + msg_hdr_len, self.node_id):
             if update:
                 self.new_data[key] = True
 
@@ -348,6 +438,59 @@ class Talent(Message):
             self.inc_counter('Unknown_Ctrl')
         self.forward(self._recv_buffer, self.header_len+self.data_len)
 
+    def parse_modbus_header(self):
+
+        msg_hdr_len = 5
+
+        result = struct.unpack_from('!lBB', self._recv_buffer,
+                                    self.header_len)
+        modbus_len = result[1]
+        # logger.debug(f'Ref: {result[0]}')
+        # logger.debug(f'Modbus MsgLen: {modbus_len} Func:{result[2]}')
+        return msg_hdr_len, modbus_len
+
+    def get_modbus_log_lvl(self) -> int:
+        if self.ctrl.is_req():
+            return logging.INFO
+        elif self.ctrl.is_ind():
+            if self.server_side:
+                return self.mb.last_log_lvl
+        return logging.WARNING
+
+    def msg_modbus(self):
+        hdr_len, modbus_len = self.parse_modbus_header()
+        data = self._recv_buffer[self.header_len:
+                                 self.header_len+self.data_len]
+
+        if self.ctrl.is_req():
+            if self.remoteStream.mb.recv_req(data[hdr_len:],
+                                             self.remoteStream.
+                                             msg_forward):
+                self.inc_counter('Modbus_Command')
+            else:
+                self.inc_counter('Invalid_Msg_Format')
+        elif self.ctrl.is_ind():
+            self.modbus_elms = 0
+            # logger.debug(f'Modbus Ind  MsgLen: {modbus_len}')
+            if not self.server_side:
+                logger.warning('Unknown Message')
+                self.inc_counter('Unknown_Msg')
+                return
+
+            for key, update, _ in self.mb.recv_resp(self.db, data[
+                    hdr_len:],
+                    self.node_id):
+                if update:
+                    self.new_data[key] = True
+                self.modbus_elms += 1          # count for unit tests
+        else:
+            logger.warning('Unknown Ctrl')
+            self.inc_counter('Unknown_Ctrl')
+            self.forward(self._recv_buffer, self.header_len+self.data_len)
+
+    def msg_forward(self):
+        self.forward(self._recv_buffer, self.header_len+self.data_len)
+
     def msg_unknown(self):
         logger.warning(f"Unknow Msg: ID:{self.msg_id}")
         self.inc_counter('Unknown_Msg')

app/src/gen3plus/connection_g3p.py

@@ -1,5 +1,6 @@
 import logging
 # import gc
+from asyncio import StreamReader, StreamWriter
 from async_stream import AsyncStream
 from gen3plus.solarman_v5 import SolarmanV5
 
@@ -8,12 +9,13 @@ logger = logging.getLogger('conn')
 
 class ConnectionG3P(AsyncStream, SolarmanV5):
 
-    def __init__(self, reader, writer, addr, remote_stream,
+    def __init__(self, reader: StreamReader, writer: StreamWriter,
+                 addr, remote_stream: 'ConnectionG3P',
                  server_side: bool) -> None:
         AsyncStream.__init__(self, reader, writer, addr)
         SolarmanV5.__init__(self, server_side)
 
-        self.remoteStream = remote_stream
+        self.remoteStream: 'ConnectionG3P' = remote_stream
 
     '''
     Our puplic methods
@@ -29,6 +31,10 @@ class ConnectionG3P(AsyncStream, SolarmanV5):
     async def async_publ_mqtt(self) -> None:
         pass
 
+    def healthy(self) -> bool:
+        logger.debug('ConnectionG3P healthy()')
+        return AsyncStream.healthy(self)
+
     '''
     Our private methods
     '''

app/src/gen3plus/infos_g3p.py

@@ -15,17 +15,17 @@ class RegisterMap:
     map = {
         # 0x41020007: {'reg': Register.DEVICE_SNR,           'fmt': '<L'},                 # noqa: E501
         0x41020018: {'reg': Register.DATA_UP_INTERVAL,     'fmt': '<B', 'ratio':   60},  # noqa: E501
-        0x41020019: {'reg': Register.COLLECT_INTERVAL,     'fmt': '<B', 'ratio':    1},  # noqa: E501
+        0x41020019: {'reg': Register.COLLECT_INTERVAL,     'fmt': '<B', 'eval': 'round(result/60)'},  # noqa: E501
         0x4102001a: {'reg': Register.HEARTBEAT_INTERVAL,   'fmt': '<B', 'ratio':    1},  # noqa: E501
         0x4102001c: {'reg': Register.SIGNAL_STRENGTH,      'fmt': '<B', 'ratio':    1},  # noqa: E501
         0x4102001e: {'reg': Register.CHIP_MODEL,           'fmt': '!40s'},               # noqa: E501
-        0x4102004c: {'reg': Register.IP_ADRESS,            'fmt': '!16s'},               # noqa: E501
+        0x4102004c: {'reg': Register.IP_ADDRESS,           'fmt': '!16s'},               # noqa: E501
         0x41020064: {'reg': Register.COLLECTOR_FW_VERSION, 'fmt': '!40s'},               # noqa: E501
 
         0x4201001c: {'reg': Register.POWER_ON_TIME,        'fmt': '<H', 'ratio':    1},  # noqa: E501
         0x42010020: {'reg': Register.SERIAL_NUMBER,        'fmt': '!16s'},               # noqa: E501
         0x420100c0: {'reg': Register.INVERTER_STATUS,      'fmt': '!H'},                 # noqa: E501
-        0x420100d0: {'reg': Register.VERSION,              'fmt': '!H', 'eval': "f'v{(result>>12)}.{(result>>8)&0xf}.{(result>>4)&0xf}{result&0xf}'"},  # noqa: E501
+        0x420100d0: {'reg': Register.VERSION,              'fmt': '!H', 'eval': "f'V{(result>>12)}.{(result>>8)&0xf}.{(result>>4)&0xf}{result&0xf}'"},  # noqa: E501
         0x420100d2: {'reg': Register.GRID_VOLTAGE,         'fmt': '!H', 'ratio':  0.1},  # noqa: E501
         0x420100d4: {'reg': Register.GRID_CURRENT,         'fmt': '!H', 'ratio': 0.01},  # noqa: E501
         0x420100d6: {'reg': Register.GRID_FREQUENCY,       'fmt': '!H', 'ratio': 0.01},  # noqa: E501
@@ -58,7 +58,7 @@ class RegisterMap:
         0x42010126: {'reg': Register.MAX_DESIGNED_POWER,   'fmt': '!H', 'ratio':    1},  # noqa: E501
         0x42010170: {'reg': Register.NO_INPUTS,            'fmt': '!B'},                 # noqa: E501
 
-        0x4281001c: {'reg': Register.POWER_ON_TIME,        'fmt': '<H', 'ratio':    1},  # noqa: E501
+        # 0x4281001c: {'reg': Register.POWER_ON_TIME,        'fmt': '<H', 'ratio':    1},  # noqa: E501
 
     }
 
@@ -88,7 +88,7 @@ class InfosG3P(Infos):
             if res:
                 yield res
 
-    def parse(self, buf, msg_type: int, rcv_ftype: int) \
+    def parse(self, buf, msg_type: int, rcv_ftype: int, node_id: str = '') \
             -> Generator[tuple[str, bool], None, None]:
         '''parse a data sequence received from the inverter and
         stores the values in Infos.db
@@ -122,5 +122,6 @@ class InfosG3P(Infos):
                 name = str(f'info-id.0x{addr:x}')
                 update = False
 
-            self.tracer.log(level, f'GEN3PLUS: {name} : {result}{unit}'
+            if update:
-                            f'  update: {update}')
+                self.tracer.log(level, f'[{node_id}] GEN3PLUS: {name}'
+                                       f' : {result}{unit}')

app/src/gen3plus/inverter_g3p.py

@@ -1,7 +1,8 @@
-import asyncio
 import logging
 import traceback
 import json
+import asyncio
+from asyncio import StreamReader, StreamWriter
 from config import Config
 from inverter import Inverter
 from gen3plus.connection_g3p import ConnectionG3P
@@ -44,7 +45,7 @@ class InverterG3P(Inverter, ConnectionG3P):
                  destroyed
     '''
 
-    def __init__(self, reader, writer, addr):
+    def __init__(self, reader: StreamReader, writer: StreamWriter, addr):
         super().__init__(reader, writer, addr, None, True)
         self.__ha_restarts = -1
 
@@ -56,11 +57,14 @@ class InverterG3P(Inverter, ConnectionG3P):
         addr = (host, port)
 
         try:
-            logging.info(f'Connected to {addr}')
+            logging.info(f'[{self.node_id}] Connect to {addr}')
             connect = asyncio.open_connection(host, port)
             reader, writer = await connect
             self.remoteStream = ConnectionG3P(reader, writer, addr, self,
                                               False)
+            logging.info(f'[{self.remoteStream.node_id}:'
+                         f'{self.remoteStream.conn_no}] '
+                         f'Connected to {addr}')
             asyncio.create_task(self.client_loop(addr))
 
         except (ConnectionRefusedError, TimeoutError) as error:

app/src/gen3plus/solarman_v5.py

@@ -2,16 +2,21 @@ import struct
 # import json
 import logging
 import time
+import asyncio
 from datetime import datetime
 
 if __name__ == "app.src.gen3plus.solarman_v5":
-    from app.src.messages import hex_dump_memory, Message
+    from app.src.messages import hex_dump_memory, Message, State
+    from app.src.modbus import Modbus
+    from app.src.my_timer import Timer
     from app.src.config import Config
     from app.src.gen3plus.infos_g3p import InfosG3P
     from app.src.infos import Register
 else:  # pragma: no cover
-    from messages import hex_dump_memory, Message
+    from messages import hex_dump_memory, Message, State
     from config import Config
+    from modbus import Modbus
+    from my_timer import Timer
     from gen3plus.infos_g3p import InfosG3P
     from infos import Register
 # import traceback
@@ -46,9 +51,13 @@ class Sequence():
 
 
 class SolarmanV5(Message):
+    AT_CMD = 1
+    MB_RTU_CMD = 2
+    MB_START_TIMEOUT = 40
+    MB_REGULAR_TIMEOUT = 60
 
     def __init__(self, server_side: bool):
-        super().__init__(server_side)
+        super().__init__(server_side, self.send_modbus_cb, mb_timeout=5)
 
         self.header_len = 11  # overwrite construcor in class Message
         self.control = 0
@@ -56,6 +65,7 @@ class SolarmanV5(Message):
         self.snr = 0
         self.db = InfosG3P()
         self.time_ofs = 0
+        self.forward_at_cmd_resp = False
         self.switch = {
 
             0x4210: self.msg_data_ind,   # real time data
@@ -84,18 +94,54 @@ class SolarmanV5(Message):
             #
             # MODbus or AT cmd
             0x4510: self.msg_command_req,  # from server
-            0x1510: self.msg_response,     # from inverter
+            0x1510: self.msg_command_rsp,     # from inverter
+            # 0x0510: self.msg_command_rsp,     # from inverter
         }
 
+        self.log_lvl = {
+
+            0x4210: logging.INFO,   # real time data
+            0x1210: logging.INFO,   # at least every 5 minutes
+
+            0x4710: logging.DEBUG,  # heatbeat
+            0x1710: logging.DEBUG,  # every 2 minutes
+
+            0x4110: logging.INFO,   # device data, sync start
+            0x1110: logging.INFO,   # every 3 hours
+
+            0x4310: logging.INFO,   # regulary after 3-6 hours
+            0x1310: logging.INFO,
+
+            0x4810: logging.INFO,   # sync end
+            0x1810: logging.INFO,
+
+            #
+            # MODbus or AT cmd
+            0x4510: logging.INFO,  # from server
+            0x1510: self.get_cmd_rsp_log_lvl,
+        }
+        self.modbus_elms = 0    # for unit tests
+        g3p_cnf = Config.get('gen3plus')
+
+        if 'at_acl' in g3p_cnf:  # pragma: no cover
+            self.at_acl = g3p_cnf['at_acl']
+
+        self.node_id = 'G3P'  # will be overwritten in __set_serial_no
+        self.mb_timer = Timer(self.mb_timout_cb, self.node_id)
+
     '''
     Our puplic methods
     '''
     def close(self) -> None:
         logging.debug('Solarman.close()')
-        # we have refernces to methods of this class in self.switch
+        # we have references to methods of this class in self.switch
         # so we have to erase self.switch, otherwise this instance can't be
         # deallocated by the garbage collector ==> we get a memory leak
         self.switch.clear()
+        self.log_lvl.clear()
+        self.state = State.closed
+        self.mb_timer.close()
+        super().close()
 
     def __set_serial_no(self, snr: int):
         serial_no = str(snr)
@@ -128,7 +174,7 @@ class SolarmanV5(Message):
 
             self.unique_id = serial_no
 
-    def read(self) -> None:
+    def read(self) -> float:
         self._read()
 
         if not self.header_valid:
@@ -136,14 +182,20 @@ class SolarmanV5(Message):
 
         if self.header_valid and len(self._recv_buffer) >= (self.header_len +
                                                             self.data_len+2):
-            hex_dump_memory(logging.INFO, f'Received from {self.addr}:',
+            log_lvl = self.log_lvl.get(self.control, logging.WARNING)
+            if callable(log_lvl):
+                log_lvl = log_lvl()
+            hex_dump_memory(log_lvl, f'Received from {self.addr}:',
                             self._recv_buffer, self.header_len+self.data_len+2)
             if self.__trailer_is_ok(self._recv_buffer, self.header_len
                                     + self.data_len + 2):
+                if self.state == State.init:
+                    self.state = State.received
+
                 self.__set_serial_no(self.snr)
                 self.__dispatch_msg()
             self.__flush_recv_msg()
-        return
+        return 0  # wait 0s before sending a response
 
     def forward(self, buffer, buflen) -> None:
         tsun = Config.get('solarman')
@@ -209,6 +261,10 @@ class SolarmanV5(Message):
         self.snr = result[4]
 
         if start != 0xA5:
+            hex_dump_memory(logging.ERROR,
+                            'Drop packet w invalid start byte from'
+                            f' {self.addr}:', buf, buf_len)
+
             self.inc_counter('Invalid_Msg_Format')
             # erase broken recv buffer
             self._recv_buffer = bytearray()
@@ -220,6 +276,9 @@ class SolarmanV5(Message):
         crc = buf[self.data_len+11]
         stop = buf[self.data_len+12]
         if stop != 0x15:
+            hex_dump_memory(logging.ERROR,
+                            'Drop packet w invalid stop byte from '
+                            f'{self.addr}:', buf, buf_len)
             self.inc_counter('Invalid_Msg_Format')
             if len(self._recv_buffer) > (self.data_len+13):
                 next_start = buf[self.data_len+13]
@@ -293,41 +352,101 @@ class SolarmanV5(Message):
                                          self._heartbeat())
         self.__finish_send_msg()
 
-    def send_at_cmd(self, AT_cmd: str) -> None:
+    def send_modbus_cb(self, pdu: bytearray, log_lvl: int, state: str):
+        if self.state != State.up:
+            logger.warning(f'[{self.node_id}] ignore MODBUS cmd,'
+                           ' cause the state is not UP anymore')
+            return
         self.__build_header(0x4510)
-        self._send_buffer += struct.pack(f'<BHLLL{len(AT_cmd)}sc', 1, 2,
+        self._send_buffer += struct.pack('<BHLLL', self.MB_RTU_CMD,
-                                         0, 0, 0, AT_cmd.encode('utf-8'),
+                                         0x2b0, 0, 0, 0)
+        self._send_buffer += pdu
+        self.__finish_send_msg()
+        hex_dump_memory(log_lvl, f'Send Modbus {state}:{self.addr}:',
+                        self._send_buffer, len(self._send_buffer))
+        self.writer.write(self._send_buffer)
+        self._send_buffer = bytearray(0)  # self._send_buffer[sent:]
+
+    def _send_modbus_cmd(self, func, addr, val, log_lvl) -> None:
+        if self.state != State.up:
+            logger.log(log_lvl, f'[{self.node_id}] ignore MODBUS cmd,'
+                       ' as the state is not UP')
+            return
+        self.mb.build_msg(Modbus.INV_ADDR, func, addr, val, log_lvl)
+
+    async def send_modbus_cmd(self, func, addr, val, log_lvl) -> None:
+        self._send_modbus_cmd(func, addr, val, log_lvl)
+
+    def mb_timout_cb(self, exp_cnt):
+        self.mb_timer.start(self.MB_REGULAR_TIMEOUT)
+
+        self._send_modbus_cmd(Modbus.READ_REGS, 0x3008, 21, logging.DEBUG)
+
+        if 0 == (exp_cnt % 30):
+            # logging.info("Regular Modbus Status request")
+            self._send_modbus_cmd(Modbus.READ_REGS, 0x2007, 2, logging.DEBUG)
+
+    def at_cmd_forbidden(self, cmd: str, connection: str) -> bool:
+        return not cmd.startswith(tuple(self.at_acl[connection]['allow'])) or \
+                cmd.startswith(tuple(self.at_acl[connection]['block']))
+
+    async def send_at_cmd(self, AT_cmd: str) -> None:
+        if self.state != State.up:
+            logger.warning(f'[{self.node_id}] ignore AT+ cmd,'
+                           ' as the state is not UP')
+            return
+        AT_cmd = AT_cmd.strip()
+
+        if self.at_cmd_forbidden(cmd=AT_cmd, connection='mqtt'):
+            data_json = f'\'{AT_cmd}\' is forbidden'
+            node_id = self.node_id
+            key = 'at_resp'
+            logger.info(f'{key}: {data_json}')
+            await self.mqtt.publish(f'{self.entity_prfx}{node_id}{key}', data_json)  # noqa: E501
+            return
+
+        self.forward_at_cmd_resp = False
+        self.__build_header(0x4510)
+        self._send_buffer += struct.pack(f'<BHLLL{len(AT_cmd)}sc', self.AT_CMD,
+                                         2, 0, 0, 0, AT_cmd.encode('utf-8'),
                                          b'\r')
         self.__finish_send_msg()
+        try:
+            await self.async_write('Send AT Command:')
+        except Exception:
+            self._send_buffer = bytearray(0)
 
     def __forward_msg(self):
         self.forward(self._recv_buffer, self.header_len+self.data_len+2)
 
+    def __build_model_name(self):
+        db = self.db
+        MaxPow = db.get_db_value(Register.MAX_DESIGNED_POWER, 0)
+        Rated = db.get_db_value(Register.RATED_POWER, 0)
+        Model = None
+        if MaxPow == 2000:
+            if Rated == 800 or Rated == 600:
+                Model = f'TSOL-MS{MaxPow}({Rated})'
+            else:
+                Model = f'TSOL-MS{MaxPow}'
+        elif MaxPow == 1800 or MaxPow == 1600:
+            Model = f'TSOL-MS{MaxPow}'
+        if Model:
+            logger.info(f'Model: {Model}')
+            self.db.set_db_def_value(Register.EQUIPMENT_MODEL, Model)
+
     def __process_data(self, ftype):
         inv_update = False
         msg_type = self.control >> 8
-        for key, update in self.db.parse(self._recv_buffer, msg_type, ftype):
+        for key, update in self.db.parse(self._recv_buffer, msg_type, ftype,
+                                         self.node_id):
             if update:
                 if key == 'inverter':
                     inv_update = True
                 self.new_data[key] = True
 
         if inv_update:
-            db = self.db
+            self.__build_model_name()
-            MaxPow = db.get_db_value(Register.MAX_DESIGNED_POWER, 0)
-            Rated = db.get_db_value(Register.RATED_POWER, 0)
-            Model = None
-            if MaxPow == 2000:
-                if Rated == 800 or Rated == 600:
-                    Model = f'TSOL-MS{MaxPow}({Rated})'
-                else:
-                    Model = f'TSOL-MS{MaxPow}'
-            elif MaxPow == 1800 or MaxPow == 1600:
-                Model = f'TSOL-MS{MaxPow}'
-            if Model:
-                logger.info(f'Model: {Model}')
-                self.db.set_db_def_value(Register.EQUIPMENT_MODEL, Model)
-
     '''
     Message handler methods
     '''
@@ -340,14 +459,14 @@ class SolarmanV5(Message):
         data = self._recv_buffer[self.header_len:]
         result = struct.unpack_from('<BLLL', data, 0)
         ftype = result[0]  # always 2
-        total = result[1]
+        # total = result[1]
         tim = result[2]
         res = result[3]  # always zero
         logger.info(f'frame type:{ftype:02x}'
                     f' timer:{tim:08x}s  null:{res}')
-        if self.time_ofs:
+        # if self.time_ofs:
-            dt = datetime.fromtimestamp(total + self.time_ofs)
+        #     dt = datetime.fromtimestamp(total + self.time_ofs)
-            logger.info(f'ts: {dt.strftime("%Y-%m-%d %H:%M:%S")}')
+        #     logger.info(f'ts: {dt.strftime("%Y-%m-%d %H:%M:%S")}')
 
         self.__process_data(ftype)
         self.__forward_msg()
@@ -357,7 +476,7 @@ class SolarmanV5(Message):
         data = self._recv_buffer
         result = struct.unpack_from('<BHLLLHL', data, self.header_len)
         ftype = result[0]  # 1 or 0x81
-        total = result[2]
+        # total = result[2]
         tim = result[3]
         if 1 == ftype:
             self.time_ofs = result[4]
@@ -365,13 +484,16 @@ class SolarmanV5(Message):
         cnt = result[6]
         logger.info(f'ftype:{ftype:02x} timer:{tim:08x}s'
                     f' ??: {unkn:04x} cnt:{cnt}')
-        if self.time_ofs:
+        # if self.time_ofs:
-            dt = datetime.fromtimestamp(total + self.time_ofs)
+        #     dt = datetime.fromtimestamp(total + self.time_ofs)
-            logger.info(f'ts: {dt.strftime("%Y-%m-%d %H:%M:%S")}')
+        #     logger.info(f'ts: {dt.strftime("%Y-%m-%d %H:%M:%S")}')
 
         self.__process_data(ftype)
         self.__forward_msg()
         self.__send_ack_rsp(0x1210, ftype)
+        if self.state is not State.up:
+            self.state = State.up
+            self.mb_timer.start(self.MB_START_TIMEOUT)
 
     def msg_sync_start(self):
         data = self._recv_buffer[self.header_len:]
@@ -387,13 +509,79 @@ class SolarmanV5(Message):
         self.__send_ack_rsp(0x1310, ftype)
 
     def msg_command_req(self):
-        data = self._recv_buffer[self.header_len:]
+        data = self._recv_buffer[self.header_len:
+                                 self.header_len+self.data_len]
         result = struct.unpack_from('<B', data, 0)
         ftype = result[0]
+        if ftype == self.AT_CMD:
+            AT_cmd = data[15:].decode()
+            if self.at_cmd_forbidden(cmd=AT_cmd, connection='tsun'):
+                self.inc_counter('AT_Command_Blocked')
+                return
+            self.inc_counter('AT_Command')
+            self.forward_at_cmd_resp = True
+
+        elif ftype == self.MB_RTU_CMD:
+            if self.remoteStream.mb.recv_req(data[15:],
+                                             self.remoteStream.
+                                             __forward_msg):
+                self.inc_counter('Modbus_Command')
+            else:
+                logger.error('Invalid Modbus Msg')
+                self.inc_counter('Invalid_Msg_Format')
+            return
 
-        self.inc_counter('AT_Command')
         self.__forward_msg()
-        self.__send_ack_rsp(0x1510, ftype)
+
+    def publish_mqtt(self, key, data):
+        asyncio.ensure_future(
+            self.mqtt.publish(key, data))
+
+    def get_cmd_rsp_log_lvl(self) -> int:
+        ftype = self._recv_buffer[self.header_len]
+        if ftype == self.AT_CMD:
+            if self.forward_at_cmd_resp:
+                return logging.INFO
+            return logging.DEBUG
+        elif ftype == self.MB_RTU_CMD:
+            if self.server_side:
+                return self.mb.last_log_lvl
+
+        return logging.WARNING
+
+    def msg_command_rsp(self):
+        data = self._recv_buffer[self.header_len:
+                                 self.header_len+self.data_len]
+        ftype = data[0]
+        if ftype == self.AT_CMD:
+            if not self.forward_at_cmd_resp:
+                data_json = data[14:].decode("utf-8")
+                node_id = self.node_id
+                key = 'at_resp'
+                logger.info(f'{key}: {data_json}')
+                self.publish_mqtt(f'{self.entity_prfx}{node_id}{key}', data_json)  # noqa: E501
+                return
+        elif ftype == self.MB_RTU_CMD:
+            valid = data[1]
+            modbus_msg_len = self.data_len - 14
+            # logger.debug(f'modbus_len:{modbus_msg_len} accepted:{valid}')
+            if valid == 1 and modbus_msg_len > 4:
+                # logger.info(f'first byte modbus:{data[14]}')
+                inv_update = False
+                self.modbus_elms = 0
+
+                for key, update, _ in self.mb.recv_resp(self.db, data[14:],
+                                                        self.node_id):
+                    self.modbus_elms += 1
+                    if update:
+                        if key == 'inverter':
+                            inv_update = True
+                        self.new_data[key] = True
+
+                if inv_update:
+                    self.__build_model_name()
+            return
+        self.__forward_msg()
 
     def msg_hbeat_ind(self):
         data = self._recv_buffer[self.header_len:]
@@ -402,6 +590,9 @@ class SolarmanV5(Message):
 
         self.__forward_msg()
         self.__send_ack_rsp(0x1710, ftype)
+        if self.state is not State.up:
+            self.state = State.up
+            self.mb_timer.start(self.MB_START_TIMEOUT)
 
     def msg_sync_end(self):
         data = self._recv_buffer[self.header_len:]
@@ -423,8 +614,8 @@ class SolarmanV5(Message):
         valid = result[1] == 1  # status
         ts = result[2]
         set_hb = result[3]  # always 60 or 120
-        logger.info(f'ftype:{ftype} accepted:{valid}'
+        logger.debug(f'ftype:{ftype} accepted:{valid}'
-                    f' ts:{ts:08x}  nextHeartbeat: {set_hb}s')
+                     f' ts:{ts:08x}  nextHeartbeat: {set_hb}s')
 
         dt = datetime.fromtimestamp(ts)
-        logger.info(f'ts: {dt.strftime("%Y-%m-%d %H:%M:%S")}')
+        logger.debug(f'ts: {dt.strftime("%Y-%m-%d %H:%M:%S")}')

app/src/infos.py

@@ -28,6 +28,8 @@ class Register(Enum):
     SW_EXCEPTION = 57
     INVALID_MSG_FMT = 58
     AT_COMMAND = 59
+    MODBUS_COMMAND = 60
+    AT_COMMAND_BLOCKED = 61
     OUTPUT_POWER = 83
     RATED_POWER = 84
     INVERTER_TEMP = 85
@@ -86,7 +88,7 @@ class Register(Enum):
     DATA_UP_INTERVAL = 404
     CONNECT_COUNT = 405
     HEARTBEAT_INTERVAL = 406
-    IP_ADRESS = 407
+    IP_ADDRESS = 407
     EVENT_401 = 500
     EVENT_402 = 501
     EVENT_403 = 502
@@ -145,7 +147,7 @@ class Infos:
 
     @classmethod
     def static_init(cls):
-        logging.info('Initialize proxy statistics')
+        logging.debug('Initialize proxy statistics')
         # init proxy counter in the class.stat dictionary
         cls.stat['proxy'] = {}
         for key in cls.__info_defs:
@@ -192,7 +194,7 @@ class Infos:
         Register.SERIAL_NUMBER:   {'name': ['inverter', 'Serial_Number'],          'level': logging.DEBUG, 'unit': ''},  # noqa: E501
         Register.EQUIPMENT_MODEL: {'name': ['inverter', 'Equipment_Model'],        'level': logging.DEBUG, 'unit': ''},  # noqa: E501
         Register.NO_INPUTS:       {'name': ['inverter', 'No_Inputs'],              'level': logging.DEBUG, 'unit': ''},  # noqa: E501
-        Register.MAX_DESIGNED_POWER: {'name': ['inverter',  'Max_Designed_Power'], 'level': logging.DEBUG, 'unit': 'W',    'ha': {'dev': 'inverter', 'dev_cla': None,          'stat_cla': None,          'id': 'designed_power_', 'fmt': '| string + " W"', 'name': 'Max Designed Power', 'icon': 'mdi:lightning-bolt', 'ent_cat': 'diagnostic'}},  # noqa: E501
+        Register.MAX_DESIGNED_POWER: {'name': ['inverter',  'Max_Designed_Power'], 'level': logging.INFO, 'unit': 'W',    'ha': {'dev': 'inverter', 'dev_cla': None,          'stat_cla': None,          'id': 'designed_power_', 'fmt': '| string + " W"', 'name': 'Max Designed Power', 'icon': 'mdi:lightning-bolt', 'ent_cat': 'diagnostic'}},  # noqa: E501
         Register.RATED_POWER:     {'name': ['inverter',  'Rated_Power'],           'level': logging.DEBUG, 'unit': 'W',    'ha': {'dev': 'inverter', 'dev_cla': None,          'stat_cla': None,          'id': 'rated_power_', 'fmt': '| string + " W"', 'name': 'Rated Power', 'icon': 'mdi:lightning-bolt', 'ent_cat': 'diagnostic'}},  # noqa: E501
 
         Register.PV1_MANUFACTURER: {'name': ['inverter', 'PV1_Manufacturer'],      'level': logging.DEBUG, 'unit': ''},  # noqa: E501
@@ -209,16 +211,18 @@ class Infos:
         Register.PV6_MODEL:        {'name': ['inverter', 'PV6_Model'],             'level': logging.DEBUG, 'unit': ''},  # noqa: E501
 
         # proxy:
-        Register.INVERTER_CNT:      {'name': ['proxy', 'Inverter_Cnt'],       'singleton': True,   'ha': {'dev': 'proxy', 'comp': 'sensor', 'dev_cla': None, 'stat_cla': None, 'id': 'inv_count_',     'fmt': '| int', 'name': 'Active Inverter Connections',    'icon': 'mdi:counter'}},  # noqa: E501
+        Register.INVERTER_CNT:       {'name': ['proxy', 'Inverter_Cnt'],       'singleton': True,   'ha': {'dev': 'proxy', 'comp': 'sensor', 'dev_cla': None, 'stat_cla': None, 'id': 'inv_count_',     'fmt': '| int', 'name': 'Active Inverter Connections',    'icon': 'mdi:counter'}},  # noqa: E501
-        Register.UNKNOWN_SNR:       {'name': ['proxy', 'Unknown_SNR'],        'singleton': True,   'ha': {'dev': 'proxy', 'comp': 'sensor', 'dev_cla': None, 'stat_cla': None, 'id': 'unknown_snr_',   'fmt': '| int', 'name': 'Unknown Serial No',    'icon': 'mdi:counter', 'ent_cat': 'diagnostic'}},  # noqa: E501
+        Register.UNKNOWN_SNR:        {'name': ['proxy', 'Unknown_SNR'],        'singleton': True,   'ha': {'dev': 'proxy', 'comp': 'sensor', 'dev_cla': None, 'stat_cla': None, 'id': 'unknown_snr_',   'fmt': '| int', 'name': 'Unknown Serial No',    'icon': 'mdi:counter', 'ent_cat': 'diagnostic'}},  # noqa: E501
-        Register.UNKNOWN_MSG:       {'name': ['proxy', 'Unknown_Msg'],        'singleton': True,   'ha': {'dev': 'proxy', 'comp': 'sensor', 'dev_cla': None, 'stat_cla': None, 'id': 'unknown_msg_',   'fmt': '| int', 'name': 'Unknown Msg Type',     'icon': 'mdi:counter', 'ent_cat': 'diagnostic'}},  # noqa: E501
+        Register.UNKNOWN_MSG:        {'name': ['proxy', 'Unknown_Msg'],        'singleton': True,   'ha': {'dev': 'proxy', 'comp': 'sensor', 'dev_cla': None, 'stat_cla': None, 'id': 'unknown_msg_',   'fmt': '| int', 'name': 'Unknown Msg Type',     'icon': 'mdi:counter', 'ent_cat': 'diagnostic'}},  # noqa: E501
-        Register.INVALID_DATA_TYPE: {'name': ['proxy', 'Invalid_Data_Type'],  'singleton': True,   'ha': {'dev': 'proxy', 'comp': 'sensor', 'dev_cla': None, 'stat_cla': None, 'id': 'inv_data_type_', 'fmt': '| int', 'name': 'Invalid Data Type',    'icon': 'mdi:counter', 'ent_cat': 'diagnostic'}},  # noqa: E501
+        Register.INVALID_DATA_TYPE:  {'name': ['proxy', 'Invalid_Data_Type'],  'singleton': True,   'ha': {'dev': 'proxy', 'comp': 'sensor', 'dev_cla': None, 'stat_cla': None, 'id': 'inv_data_type_', 'fmt': '| int', 'name': 'Invalid Data Type',    'icon': 'mdi:counter', 'ent_cat': 'diagnostic'}},  # noqa: E501
-        Register.INTERNAL_ERROR:    {'name': ['proxy', 'Internal_Error'],     'singleton': True,   'ha': {'dev': 'proxy', 'comp': 'sensor', 'dev_cla': None, 'stat_cla': None, 'id': 'intern_err_',    'fmt': '| int', 'name': 'Internal Error',       'icon': 'mdi:counter', 'ent_cat': 'diagnostic', 'en': False}},  # noqa: E501
+        Register.INTERNAL_ERROR:     {'name': ['proxy', 'Internal_Error'],     'singleton': True,   'ha': {'dev': 'proxy', 'comp': 'sensor', 'dev_cla': None, 'stat_cla': None, 'id': 'intern_err_',    'fmt': '| int', 'name': 'Internal Error',       'icon': 'mdi:counter', 'ent_cat': 'diagnostic', 'en': False}},  # noqa: E501
-        Register.UNKNOWN_CTRL:      {'name': ['proxy', 'Unknown_Ctrl'],       'singleton': True,   'ha': {'dev': 'proxy', 'comp': 'sensor', 'dev_cla': None, 'stat_cla': None, 'id': 'unknown_ctrl_',  'fmt': '| int', 'name': 'Unknown Control Type', 'icon': 'mdi:counter', 'ent_cat': 'diagnostic'}},  # noqa: E501
+        Register.UNKNOWN_CTRL:       {'name': ['proxy', 'Unknown_Ctrl'],       'singleton': True,   'ha': {'dev': 'proxy', 'comp': 'sensor', 'dev_cla': None, 'stat_cla': None, 'id': 'unknown_ctrl_',  'fmt': '| int', 'name': 'Unknown Control Type', 'icon': 'mdi:counter', 'ent_cat': 'diagnostic'}},  # noqa: E501
-        Register.OTA_START_MSG:     {'name': ['proxy', 'OTA_Start_Msg'],      'singleton': True,   'ha': {'dev': 'proxy', 'comp': 'sensor', 'dev_cla': None, 'stat_cla': None, 'id': 'ota_start_cmd_', 'fmt': '| int', 'name': 'OTA Start Cmd',        'icon': 'mdi:counter', 'ent_cat': 'diagnostic'}},  # noqa: E501
+        Register.OTA_START_MSG:      {'name': ['proxy', 'OTA_Start_Msg'],      'singleton': True,   'ha': {'dev': 'proxy', 'comp': 'sensor', 'dev_cla': None, 'stat_cla': None, 'id': 'ota_start_cmd_', 'fmt': '| int', 'name': 'OTA Start Cmd',        'icon': 'mdi:counter', 'ent_cat': 'diagnostic'}},  # noqa: E501
-        Register.SW_EXCEPTION:      {'name': ['proxy', 'SW_Exception'],       'singleton': True,   'ha': {'dev': 'proxy', 'comp': 'sensor', 'dev_cla': None, 'stat_cla': None, 'id': 'sw_exception_',  'fmt': '| int', 'name': 'Internal SW Exception', 'icon': 'mdi:counter', 'ent_cat': 'diagnostic'}},  # noqa: E501
+        Register.SW_EXCEPTION:       {'name': ['proxy', 'SW_Exception'],       'singleton': True,   'ha': {'dev': 'proxy', 'comp': 'sensor', 'dev_cla': None, 'stat_cla': None, 'id': 'sw_exception_',  'fmt': '| int', 'name': 'Internal SW Exception', 'icon': 'mdi:counter', 'ent_cat': 'diagnostic'}},  # noqa: E501
-        Register.INVALID_MSG_FMT:   {'name': ['proxy', 'Invalid_Msg_Format'], 'singleton': True,   'ha': {'dev': 'proxy', 'comp': 'sensor', 'dev_cla': None, 'stat_cla': None, 'id': 'inv_msg_fmt_',   'fmt': '| int', 'name': 'Invalid Message Format', 'icon': 'mdi:counter', 'ent_cat': 'diagnostic'}},  # noqa: E501
+        Register.INVALID_MSG_FMT:    {'name': ['proxy', 'Invalid_Msg_Format'], 'singleton': True,   'ha': {'dev': 'proxy', 'comp': 'sensor', 'dev_cla': None, 'stat_cla': None, 'id': 'inv_msg_fmt_',   'fmt': '| int', 'name': 'Invalid Message Format', 'icon': 'mdi:counter', 'ent_cat': 'diagnostic'}},  # noqa: E501
-        Register.AT_COMMAND:        {'name': ['proxy', 'AT_Command'],         'singleton': True,   'ha': {'dev': 'proxy', 'comp': 'sensor', 'dev_cla': None, 'stat_cla': None, 'id': 'at_cmd_',        'fmt': '| int', 'name': 'AT Command',           'icon': 'mdi:counter', 'ent_cat': 'diagnostic'}},  # noqa: E501
+        Register.AT_COMMAND:         {'name': ['proxy', 'AT_Command'],         'singleton': True,   'ha': {'dev': 'proxy', 'comp': 'sensor', 'dev_cla': None, 'stat_cla': None, 'id': 'at_cmd_',        'fmt': '| int', 'name': 'AT Command',           'icon': 'mdi:counter', 'ent_cat': 'diagnostic'}},  # noqa: E501
+        Register.AT_COMMAND_BLOCKED: {'name': ['proxy', 'AT_Command_Blocked'], 'singleton': True,   'ha': {'dev': 'proxy', 'comp': 'sensor', 'dev_cla': None, 'stat_cla': None, 'id': 'at_cmd_blocked_', 'fmt': '| int', 'name': 'AT Command Blocked',   'icon': 'mdi:counter', 'ent_cat': 'diagnostic'}},  # noqa: E501
+        Register.MODBUS_COMMAND:     {'name': ['proxy', 'Modbus_Command'],     'singleton': True,   'ha': {'dev': 'proxy', 'comp': 'sensor', 'dev_cla': None, 'stat_cla': None, 'id': 'modbus_cmd_',    'fmt': '| int', 'name': 'Modbus Command',       'icon': 'mdi:counter', 'ent_cat': 'diagnostic'}},  # noqa: E501
         # 0xffffff03:  {'name':['proxy', 'Voltage'],                        'level': logging.DEBUG, 'unit': 'V',    'ha':{'dev':'proxy', 'dev_cla': 'voltage',     'stat_cla': 'measurement', 'id':'proxy_volt_',  'fmt':'| float','name': 'Grid Voltage'}},  # noqa: E501
 
         # events
@@ -230,7 +234,7 @@ class Infos:
         Register.EVENT_406:  {'name': ['events', '406_'],                          'level': logging.DEBUG, 'unit': ''},  # noqa: E501
         Register.EVENT_407:  {'name': ['events', '407_'],                          'level': logging.DEBUG, 'unit': ''},  # noqa: E501
         Register.EVENT_408:  {'name': ['events', '408_'],                          'level': logging.DEBUG, 'unit': ''},  # noqa: E501
-        Register.EVENT_409:  {'name': ['events', '409_'],                          'level': logging.DEBUG, 'unit': ''},  # noqa: E501
+        Register.EVENT_409:  {'name': ['events', '409_No_Utility'],                'level': logging.DEBUG, 'unit': ''},  # noqa: E501
         Register.EVENT_410:  {'name': ['events', '410_'],                          'level': logging.DEBUG, 'unit': ''},  # noqa: E501
         Register.EVENT_411:  {'name': ['events', '411_'],                          'level': logging.DEBUG, 'unit': ''},  # noqa: E501
         Register.EVENT_412:  {'name': ['events', '412_'],                          'level': logging.DEBUG, 'unit': ''},  # noqa: E501
@@ -245,28 +249,27 @@ class Infos:
         Register.GRID_FREQUENCY:  {'name': ['grid', 'Frequency'],                  'level': logging.DEBUG, 'unit': 'Hz',   'ha': {'dev': 'inverter', 'dev_cla': 'frequency',   'stat_cla': 'measurement', 'id': 'out_freq_',  'fmt': '| float', 'name': 'Grid Frequency', 'ent_cat': 'diagnostic'}},  # noqa: E501
         Register.OUTPUT_POWER:    {'name': ['grid', 'Output_Power'],               'level': logging.INFO,  'unit': 'W',    'ha': {'dev': 'inverter', 'dev_cla': 'power',       'stat_cla': 'measurement', 'id': 'out_power_', 'fmt': '| float', 'name': 'Power'}},  # noqa: E501
         Register.INVERTER_TEMP:   {'name': ['env',  'Inverter_Temp'],              'level': logging.DEBUG, 'unit': '°C',   'ha': {'dev': 'inverter', 'dev_cla': 'temperature', 'stat_cla': 'measurement', 'id': 'temp_',       'fmt': '| int', 'name': 'Temperature'}},  # noqa: E501
-        Register.VALUE_1:         {'name': ['env',  'Value_1'],                    'level': logging.INFO,  'unit': '',     'ha': {'dev': 'inverter', 'dev_cla': None,          'stat_cla': 'measurement', 'id': 'value_1_',   'fmt': '| int', 'name': 'Value 1',  'ent_cat': 'diagnostic'}},  # noqa: E501
         Register.INVERTER_STATUS: {'name': ['env',  'Inverter_Status'],            'level': logging.INFO,  'unit': '',     'ha': {'dev': 'inverter', 'comp': 'sensor', 'dev_cla': None, 'stat_cla': None, 'id': 'inv_status_', 'name': 'Inverter Status', 'val_tpl': __status_type_val_tpl,          'icon': 'mdi:counter'}},  # noqa: E501
 
         # input measures:
         Register.PV1_VOLTAGE:  {'name': ['input', 'pv1', 'Voltage'],               'level': logging.DEBUG, 'unit': 'V',    'ha': {'dev': 'input_pv1', 'dev_cla': 'voltage', 'stat_cla': 'measurement', 'id': 'volt_pv1_',  'val_tpl': "{{ (value_json['pv1']['Voltage'] | float)}}", 'icon': 'mdi:gauge', 'ent_cat': 'diagnostic'}},  # noqa: E501
         Register.PV1_CURRENT:  {'name': ['input', 'pv1', 'Current'],               'level': logging.DEBUG, 'unit': 'A',    'ha': {'dev': 'input_pv1', 'dev_cla': 'current', 'stat_cla': 'measurement', 'id': 'cur_pv1_',   'val_tpl': "{{ (value_json['pv1']['Current'] | float)}}", 'icon': 'mdi:gauge', 'ent_cat': 'diagnostic'}},  # noqa: E501
-        Register.PV1_POWER:    {'name': ['input', 'pv1', 'Power'],                 'level': logging.INFO,  'unit': 'W',    'ha': {'dev': 'input_pv1', 'dev_cla': 'power',   'stat_cla': 'measurement', 'id': 'power_pv1_', 'val_tpl': "{{ (value_json['pv1']['Power'] | float)}}"}},  # noqa: E501
+        Register.PV1_POWER:    {'name': ['input', 'pv1', 'Power'],                 'level': logging.DEBUG, 'unit': 'W',    'ha': {'dev': 'input_pv1', 'dev_cla': 'power',   'stat_cla': 'measurement', 'id': 'power_pv1_', 'val_tpl': "{{ (value_json['pv1']['Power'] | float)}}"}},  # noqa: E501
         Register.PV2_VOLTAGE:  {'name': ['input', 'pv2', 'Voltage'],               'level': logging.DEBUG, 'unit': 'V',    'ha': {'dev': 'input_pv2', 'dev_cla': 'voltage', 'stat_cla': 'measurement', 'id': 'volt_pv2_',  'val_tpl': "{{ (value_json['pv2']['Voltage'] | float)}}", 'icon': 'mdi:gauge', 'ent_cat': 'diagnostic'}},  # noqa: E501
         Register.PV2_CURRENT:  {'name': ['input', 'pv2', 'Current'],               'level': logging.DEBUG, 'unit': 'A',    'ha': {'dev': 'input_pv2', 'dev_cla': 'current', 'stat_cla': 'measurement', 'id': 'cur_pv2_',   'val_tpl': "{{ (value_json['pv2']['Current'] | float)}}", 'icon': 'mdi:gauge', 'ent_cat': 'diagnostic'}},  # noqa: E501
-        Register.PV2_POWER:    {'name': ['input', 'pv2', 'Power'],                 'level': logging.INFO,  'unit': 'W',    'ha': {'dev': 'input_pv2', 'dev_cla': 'power',   'stat_cla': 'measurement', 'id': 'power_pv2_', 'val_tpl': "{{ (value_json['pv2']['Power'] | float)}}"}},  # noqa: E501
+        Register.PV2_POWER:    {'name': ['input', 'pv2', 'Power'],                 'level': logging.DEBUG, 'unit': 'W',    'ha': {'dev': 'input_pv2', 'dev_cla': 'power',   'stat_cla': 'measurement', 'id': 'power_pv2_', 'val_tpl': "{{ (value_json['pv2']['Power'] | float)}}"}},  # noqa: E501
         Register.PV3_VOLTAGE:  {'name': ['input', 'pv3', 'Voltage'],               'level': logging.DEBUG, 'unit': 'V',    'ha': {'dev': 'input_pv3', 'dev_cla': 'voltage', 'stat_cla': 'measurement', 'id': 'volt_pv3_',  'val_tpl': "{{ (value_json['pv3']['Voltage'] | float)}}", 'icon': 'mdi:gauge', 'ent_cat': 'diagnostic'}},  # noqa: E501
         Register.PV3_CURRENT:  {'name': ['input', 'pv3', 'Current'],               'level': logging.DEBUG, 'unit': 'A',    'ha': {'dev': 'input_pv3', 'dev_cla': 'current', 'stat_cla': 'measurement', 'id': 'cur_pv3_',   'val_tpl': "{{ (value_json['pv3']['Current'] | float)}}", 'icon': 'mdi:gauge', 'ent_cat': 'diagnostic'}},  # noqa: E501
-        Register.PV3_POWER:    {'name': ['input', 'pv3', 'Power'],                 'level': logging.INFO,  'unit': 'W',    'ha': {'dev': 'input_pv3', 'dev_cla': 'power',   'stat_cla': 'measurement', 'id': 'power_pv3_', 'val_tpl': "{{ (value_json['pv3']['Power'] | float)}}"}},  # noqa: E501
+        Register.PV3_POWER:    {'name': ['input', 'pv3', 'Power'],                 'level': logging.DEBUG, 'unit': 'W',    'ha': {'dev': 'input_pv3', 'dev_cla': 'power',   'stat_cla': 'measurement', 'id': 'power_pv3_', 'val_tpl': "{{ (value_json['pv3']['Power'] | float)}}"}},  # noqa: E501
         Register.PV4_VOLTAGE:  {'name': ['input', 'pv4', 'Voltage'],               'level': logging.DEBUG, 'unit': 'V',    'ha': {'dev': 'input_pv4', 'dev_cla': 'voltage', 'stat_cla': 'measurement', 'id': 'volt_pv4_',  'val_tpl': "{{ (value_json['pv4']['Voltage'] | float)}}", 'icon': 'mdi:gauge', 'ent_cat': 'diagnostic'}},  # noqa: E501
         Register.PV4_CURRENT:  {'name': ['input', 'pv4', 'Current'],               'level': logging.DEBUG, 'unit': 'A',    'ha': {'dev': 'input_pv4', 'dev_cla': 'current', 'stat_cla': 'measurement', 'id': 'cur_pv4_',   'val_tpl': "{{ (value_json['pv4']['Current'] | float)}}", 'icon': 'mdi:gauge', 'ent_cat': 'diagnostic'}},  # noqa: E501
-        Register.PV4_POWER:    {'name': ['input', 'pv4', 'Power'],                 'level': logging.INFO,  'unit': 'W',    'ha': {'dev': 'input_pv4', 'dev_cla': 'power',   'stat_cla': 'measurement', 'id': 'power_pv4_', 'val_tpl': "{{ (value_json['pv4']['Power'] | float)}}"}},  # noqa: E501
+        Register.PV4_POWER:    {'name': ['input', 'pv4', 'Power'],                 'level': logging.DEBUG, 'unit': 'W',    'ha': {'dev': 'input_pv4', 'dev_cla': 'power',   'stat_cla': 'measurement', 'id': 'power_pv4_', 'val_tpl': "{{ (value_json['pv4']['Power'] | float)}}"}},  # noqa: E501
         Register.PV5_VOLTAGE:  {'name': ['input', 'pv5', 'Voltage'],               'level': logging.DEBUG, 'unit': 'V',    'ha': {'dev': 'input_pv5', 'dev_cla': 'voltage', 'stat_cla': 'measurement', 'id': 'volt_pv5_',  'val_tpl': "{{ (value_json['pv5']['Voltage'] | float)}}", 'icon': 'mdi:gauge', 'ent_cat': 'diagnostic'}},  # noqa: E501
         Register.PV5_CURRENT:  {'name': ['input', 'pv5', 'Current'],               'level': logging.DEBUG, 'unit': 'A',    'ha': {'dev': 'input_pv5', 'dev_cla': 'current', 'stat_cla': 'measurement', 'id': 'cur_pv5_',   'val_tpl': "{{ (value_json['pv5']['Current'] | float)}}", 'icon': 'mdi:gauge', 'ent_cat': 'diagnostic'}},  # noqa: E501
-        Register.PV5_POWER:    {'name': ['input', 'pv5', 'Power'],                 'level': logging.INFO,  'unit': 'W',    'ha': {'dev': 'input_pv5', 'dev_cla': 'power',   'stat_cla': 'measurement', 'id': 'power_pv5_', 'val_tpl': "{{ (value_json['pv5']['Power'] | float)}}"}},  # noqa: E501
+        Register.PV5_POWER:    {'name': ['input', 'pv5', 'Power'],                 'level': logging.DEBUG, 'unit': 'W',    'ha': {'dev': 'input_pv5', 'dev_cla': 'power',   'stat_cla': 'measurement', 'id': 'power_pv5_', 'val_tpl': "{{ (value_json['pv5']['Power'] | float)}}"}},  # noqa: E501
         Register.PV6_VOLTAGE:  {'name': ['input', 'pv6', 'Voltage'],               'level': logging.DEBUG, 'unit': 'V',    'ha': {'dev': 'input_pv6', 'dev_cla': 'voltage', 'stat_cla': 'measurement', 'id': 'volt_pv6_',  'val_tpl': "{{ (value_json['pv6']['Voltage'] | float)}}", 'icon': 'mdi:gauge', 'ent_cat': 'diagnostic'}},  # noqa: E501
         Register.PV6_CURRENT:  {'name': ['input', 'pv6', 'Current'],               'level': logging.DEBUG, 'unit': 'A',    'ha': {'dev': 'input_pv6', 'dev_cla': 'current', 'stat_cla': 'measurement', 'id': 'cur_pv6_',   'val_tpl': "{{ (value_json['pv6']['Current'] | float)}}", 'icon': 'mdi:gauge', 'ent_cat': 'diagnostic'}},  # noqa: E501
-        Register.PV6_POWER:    {'name': ['input', 'pv6', 'Power'],                 'level': logging.INFO,  'unit': 'W',    'ha': {'dev': 'input_pv6', 'dev_cla': 'power',   'stat_cla': 'measurement', 'id': 'power_pv6_', 'val_tpl': "{{ (value_json['pv6']['Power'] | float)}}"}},  # noqa: E501
+        Register.PV6_POWER:    {'name': ['input', 'pv6', 'Power'],                 'level': logging.DEBUG, 'unit': 'W',    'ha': {'dev': 'input_pv6', 'dev_cla': 'power',   'stat_cla': 'measurement', 'id': 'power_pv6_', 'val_tpl': "{{ (value_json['pv6']['Power'] | float)}}"}},  # noqa: E501
         Register.PV1_DAILY_GENERATION:  {'name': ['input', 'pv1', 'Daily_Generation'],        'level': logging.DEBUG, 'unit': 'kWh',  'ha': {'dev': 'input_pv1', 'dev_cla': 'energy', 'stat_cla': 'total_increasing', 'id': 'daily_gen_pv1_', 'name': 'Daily Generation', 'val_tpl': "{{ (value_json['pv1']['Daily_Generation'] | float)}}", 'icon': 'mdi:solar-power-variant', 'must_incr': True}},  # noqa: E501
         Register.PV1_TOTAL_GENERATION:  {'name': ['input', 'pv1', 'Total_Generation'],        'level': logging.DEBUG, 'unit': 'kWh',  'ha': {'dev': 'input_pv1', 'dev_cla': 'energy', 'stat_cla': 'total',            'id': 'total_gen_pv1_', 'name': 'Total Generation', 'val_tpl': "{{ (value_json['pv1']['Total_Generation'] | float)}}", 'icon': 'mdi:solar-power', 'must_incr': True}},  # noqa: E501
         Register.PV2_DAILY_GENERATION:  {'name': ['input', 'pv2', 'Daily_Generation'],        'level': logging.DEBUG, 'unit': 'kWh',  'ha': {'dev': 'input_pv2', 'dev_cla': 'energy', 'stat_cla': 'total_increasing', 'id': 'daily_gen_pv2_', 'name': 'Daily Generation', 'val_tpl': "{{ (value_json['pv2']['Daily_Generation'] | float)}}", 'icon': 'mdi:solar-power-variant', 'must_incr': True}},  # noqa: E501
@@ -285,13 +288,13 @@ class Infos:
 
         # controller:
         Register.SIGNAL_STRENGTH:    {'name': ['controller', 'Signal_Strength'],    'level': logging.DEBUG, 'unit': '%',    'ha': {'dev': 'controller', 'dev_cla': None,       'stat_cla': 'measurement', 'id': 'signal_',              'fmt': '| int',           'name': 'Signal Strength', 'icon': 'mdi:wifi'}},  # noqa: E501
-        Register.POWER_ON_TIME:      {'name': ['controller', 'Power_On_Time'],      'level': logging.DEBUG, 'unit': 's',    'ha': {'dev': 'controller', 'dev_cla': 'duration', 'stat_cla': 'measurement', 'id': 'power_on_time_',       'fmt': '| float',         'name': 'Power on Time', 'nat_prc': '3', 'ent_cat': 'diagnostic'}},  # noqa: E501
+        Register.POWER_ON_TIME:      {'name': ['controller', 'Power_On_Time'],      'level': logging.DEBUG, 'unit': 's',    'ha': {'dev': 'controller', 'dev_cla': 'duration', 'stat_cla': 'measurement', 'id': 'power_on_time_',       'fmt': '| int',           'name': 'Power on Time', 'ent_cat': 'diagnostic'}},  # noqa: E501
-        Register.COLLECT_INTERVAL:   {'name': ['controller', 'Collect_Interval'],   'level': logging.DEBUG, 'unit': 's',    'ha': {'dev': 'controller', 'dev_cla': None,       'stat_cla': None,          'id': 'data_collect_intval_', 'fmt': '| string + " s"', 'name': 'Data Collect Interval', 'icon': 'mdi:update', 'ent_cat': 'diagnostic'}},  # noqa: E501
+        Register.COLLECT_INTERVAL:   {'name': ['controller', 'Collect_Interval'],   'level': logging.DEBUG, 'unit': 'min',  'ha': {'dev': 'controller', 'dev_cla': None,       'stat_cla': None,          'id': 'data_collect_intval_', 'fmt': '| string + " min"', 'name': 'Data Collect Interval', 'icon': 'mdi:update', 'ent_cat': 'diagnostic'}},  # noqa: E501
         Register.CONNECT_COUNT:      {'name': ['controller', 'Connect_Count'],      'level': logging.DEBUG, 'unit': '',     'ha': {'dev': 'controller', 'dev_cla': None,       'stat_cla': None,          'id': 'connect_count_',       'fmt': '| int',           'name': 'Connect Count',    'icon': 'mdi:counter', 'comp': 'sensor', 'ent_cat': 'diagnostic'}},  # noqa: E501
         Register.COMMUNICATION_TYPE: {'name': ['controller', 'Communication_Type'], 'level': logging.DEBUG, 'unit': '',     'ha': {'dev': 'controller', 'dev_cla': None,       'stat_cla': None,          'id': 'comm_type_',           'name': 'Communication Type', 'val_tpl': __comm_type_val_tpl, 'comp': 'sensor', 'icon': 'mdi:wifi'}},  # noqa: E501
         Register.DATA_UP_INTERVAL:   {'name': ['controller', 'Data_Up_Interval'],   'level': logging.DEBUG, 'unit': 's',    'ha': {'dev': 'controller', 'dev_cla': None,       'stat_cla': None,          'id': 'data_up_intval_', 'fmt': '| string + " s"', 'name': 'Data Up Interval', 'icon': 'mdi:update', 'ent_cat': 'diagnostic'}},  # noqa: E501
         Register.HEARTBEAT_INTERVAL: {'name': ['controller', 'Heartbeat_Interval'], 'level': logging.DEBUG, 'unit': 's',    'ha': {'dev': 'controller', 'dev_cla': None,       'stat_cla': None,          'id': 'heartbeat_intval_',    'fmt': '| string + " s"', 'name': 'Heartbeat Interval', 'icon': 'mdi:update', 'ent_cat': 'diagnostic'}},  # noqa: E501
-        Register.IP_ADRESS:          {'name': ['controller', 'IP_Adress'],          'level': logging.DEBUG, 'unit': '',     'ha': {'dev': 'controller', 'dev_cla': None,       'stat_cla': None,          'id': 'ip_adress_',           'fmt': '| string',        'name': 'IP Adress', 'icon': 'mdi:wifi', 'ent_cat': 'diagnostic'}},  # noqa: E501
+        Register.IP_ADDRESS:         {'name': ['controller', 'IP_Address'],         'level': logging.DEBUG, 'unit': '',     'ha': {'dev': 'controller', 'dev_cla': None,       'stat_cla': None,          'id': 'ip_address_',           'fmt': '| string',        'name': 'IP Address', 'icon': 'mdi:wifi', 'ent_cat': 'diagnostic'}},  # noqa: E501
     }
 
     @property
@@ -340,7 +343,7 @@ class Infos:
         dict[counter] -= 1
 
     def ha_proxy_confs(self, ha_prfx: str, node_id: str, snr: str) \
-            -> Generator[tuple[dict, str], None, None]:
+            -> Generator[tuple[str, str, str, str], None, None]:
         '''Generator function yields json register struct for home-assistant
         auto configuration and the unique entity string, for all proxy
         registers
@@ -403,7 +406,7 @@ class Infos:
                 attr['unit_of_meas'] = row['unit']  # 'unit_of_meas'
             if 'icon' in ha:
                 attr['ic'] = ha['icon']             # icon for the entity
-            if 'nat_prc' in ha:
+            if 'nat_prc' in ha:  # pragma: no cover
                 attr['sug_dsp_prc'] = ha['nat_prc']  # precison of floats
             if 'ent_cat' in ha:
                 attr['ent_cat'] = ha['ent_cat']     # diagnostic, config

app/src/logging.ini

@@ -1,5 +1,5 @@
 [loggers]
-keys=root,tracer,mesg,conn,data,mqtt
+keys=root,tracer,mesg,conn,data,mqtt,asyncio
 
 [handlers]
 keys=console_handler,file_handler_name1,file_handler_name2
@@ -24,6 +24,12 @@ handlers=console_handler,file_handler_name1
 propagate=0
 qualname=mqtt
 
+[logger_asyncio]
+level=INFO
+handlers=console_handler,file_handler_name1
+propagate=0
+qualname=asyncio
+
 [logger_data]
 level=DEBUG
 handlers=file_handler_name1

app/src/messages.py

@@ -1,10 +1,15 @@
 import logging
 import weakref
+from typing import Callable, Generator
+from enum import Enum
+
 
 if __name__ == "app.src.messages":
     from app.src.infos import Infos
+    from app.src.modbus import Modbus
 else:  # pragma: no cover
     from infos import Infos
+    from modbus import Modbus
 
 logger = logging.getLogger('msg')
 
@@ -41,30 +46,51 @@ def hex_dump_memory(level, info, data, num):
 
 
 class IterRegistry(type):
-    def __iter__(cls):
+    def __iter__(cls) -> Generator['Message', None, None]:
         for ref in cls._registry:
             obj = ref()
             if obj is not None:
                 yield obj
 
 
+class State(Enum):
+    '''state of the logical connection'''
+    init = 0
+    '''just created'''
+    received = 1
+    '''at least one packet received'''
+    up = 2
+    '''at least one cmd-rsp transaction'''
+    pend = 3
+    '''inverter transaction pending, don't send MODBUS cmds'''
+    closed = 4
+    '''connection closed'''
+
+
 class Message(metaclass=IterRegistry):
     _registry = []
 
-    def __init__(self, server_side: bool):
+    def __init__(self, server_side: bool, send_modbus_cb:
+                 Callable[[bytes, int, str], None], mb_timeout: int):
         self._registry.append(weakref.ref(self))
 
         self.server_side = server_side
+        if server_side:
+            self.mb = Modbus(send_modbus_cb, mb_timeout)
+        else:
+            self.mb = None
+
         self.header_valid = False
         self.header_len = 0
         self.data_len = 0
         self.unique_id = 0
-        self.node_id = ''
+        self.node_id = ''  # will be overwritten in the child class's __init__
         self.sug_area = ''
         self._recv_buffer = bytearray(0)
         self._send_buffer = bytearray(0)
         self._forward_buffer = bytearray(0)
         self.new_data = {}
+        self.state = State.init
 
     '''
     Empty methods, that have to be implemented in any child class which
@@ -82,6 +108,9 @@ class Message(metaclass=IterRegistry):
     Our puplic methods
     '''
     def close(self) -> None:
+        if self.mb:
+            self.mb.close()
+            self.mb = None
         pass  # pragma: no cover
 
     def inc_counter(self, counter: str) -> None:

app/src/modbus.py

@@ -0,0 +1,320 @@
+'''MODBUS  module for TSUN inverter support
+
+TSUN uses the MODBUS in the RTU transmission mode over serial line.
+see: https://modbus.org/docs/Modbus_Application_Protocol_V1_1b3.pdf
+see: https://modbus.org/docs/Modbus_over_serial_line_V1_02.pdf
+
+A Modbus PDU consists of: 'Function-Code' + 'Data'
+A Modbus RTU message consists of: 'Addr' + 'Modbus-PDU' + 'CRC-16'
+The inverter is a MODBUS server and the proxy the MODBUS client.
+
+The 16-bit CRC is known as CRC-16-ANSI(reverse)
+see: https://en.wikipedia.org/wiki/Computation_of_cyclic_redundancy_checks
+'''
+import struct
+import logging
+import asyncio
+from typing import Generator, Callable
+
+if __name__ == "app.src.modbus":
+    from app.src.infos import Register
+else:  # pragma: no cover
+    from infos import Register
+
+logger = logging.getLogger('data')
+
+CRC_POLY = 0xA001  # (LSBF/reverse)
+CRC_INIT = 0xFFFF
+
+
+class Modbus():
+    '''Simple MODBUS implementation with TX queue and retransmit timer'''
+    INV_ADDR = 1
+    '''MODBUS server address of the TSUN inverter'''
+    READ_REGS = 3
+    '''MODBUS function code: Read Holding Register'''
+    READ_INPUTS = 4
+    '''MODBUS function code: Read Input Register'''
+    WRITE_SINGLE_REG = 6
+    '''Modbus function code: Write Single Register'''
+
+    __crc_tab = []
+    map = {
+        0x2007: {'reg': Register.MAX_DESIGNED_POWER,   'fmt': '!H', 'ratio':  1},  # noqa: E501
+        # 0x????: {'reg': Register.INVERTER_STATUS,      'fmt': '!H'},                 # noqa: E501
+        0x3008: {'reg': Register.VERSION,              'fmt': '!H', 'eval': "f'V{(result>>12)}.{(result>>8)&0xf}.{(result>>4)&0xf}{result&0xf}'"},  # noqa: E501
+        0x3009: {'reg': Register.GRID_VOLTAGE,         'fmt': '!H', 'ratio':  0.1},  # noqa: E501
+        0x300a: {'reg': Register.GRID_CURRENT,         'fmt': '!H', 'ratio': 0.01},  # noqa: E501
+        0x300b: {'reg': Register.GRID_FREQUENCY,       'fmt': '!H', 'ratio': 0.01},  # noqa: E501
+        0x300c: {'reg': Register.INVERTER_TEMP,        'fmt': '!H', 'eval': 'result-40'},  # noqa: E501
+        # 0x300d
+        0x300e: {'reg': Register.RATED_POWER,          'fmt': '!H', 'ratio':    1},  # noqa: E501
+        0x300f: {'reg': Register.OUTPUT_POWER,         'fmt': '!H', 'ratio':  0.1},  # noqa: E501
+        0x3010: {'reg': Register.PV1_VOLTAGE,          'fmt': '!H', 'ratio':  0.1},  # noqa: E501
+        0x3011: {'reg': Register.PV1_CURRENT,          'fmt': '!H', 'ratio': 0.01},  # noqa: E501
+        0x3012: {'reg': Register.PV1_POWER,            'fmt': '!H', 'ratio':  0.1},  # noqa: E501
+        0x3013: {'reg': Register.PV2_VOLTAGE,          'fmt': '!H', 'ratio':  0.1},  # noqa: E501
+        0x3014: {'reg': Register.PV2_CURRENT,          'fmt': '!H', 'ratio': 0.01},  # noqa: E501
+        0x3015: {'reg': Register.PV2_POWER,            'fmt': '!H', 'ratio':  0.1},  # noqa: E501
+        0x3016: {'reg': Register.PV3_VOLTAGE,          'fmt': '!H', 'ratio':  0.1},  # noqa: E501
+        0x3017: {'reg': Register.PV3_CURRENT,          'fmt': '!H', 'ratio': 0.01},  # noqa: E501
+        0x3018: {'reg': Register.PV3_POWER,            'fmt': '!H', 'ratio':  0.1},  # noqa: E501
+        0x3019: {'reg': Register.PV4_VOLTAGE,          'fmt': '!H', 'ratio':  0.1},  # noqa: E501
+        0x301a: {'reg': Register.PV4_CURRENT,          'fmt': '!H', 'ratio': 0.01},  # noqa: E501
+        0x301b: {'reg': Register.PV4_POWER,            'fmt': '!H', 'ratio':  0.1},  # noqa: E501
+        0x301c: {'reg': Register.DAILY_GENERATION,     'fmt': '!H', 'ratio': 0.01},  # noqa: E501
+        0x301d: {'reg': Register.TOTAL_GENERATION,     'fmt': '!L', 'ratio': 0.01},  # noqa: E501
+        0x301f: {'reg': Register.PV1_DAILY_GENERATION, 'fmt': '!H', 'ratio': 0.01},  # noqa: E501
+        0x3020: {'reg': Register.PV1_TOTAL_GENERATION, 'fmt': '!L', 'ratio': 0.01},  # noqa: E501
+        0x3022: {'reg': Register.PV2_DAILY_GENERATION, 'fmt': '!H', 'ratio': 0.01},  # noqa: E501
+        0x3023: {'reg': Register.PV2_TOTAL_GENERATION, 'fmt': '!L', 'ratio': 0.01},  # noqa: E501
+        0x3025: {'reg': Register.PV3_DAILY_GENERATION, 'fmt': '!H', 'ratio': 0.01},  # noqa: E501
+        0x3026: {'reg': Register.PV3_TOTAL_GENERATION, 'fmt': '!L', 'ratio': 0.01},  # noqa: E501
+        0x3028: {'reg': Register.PV4_DAILY_GENERATION, 'fmt': '!H', 'ratio': 0.01},  # noqa: E501
+        0x3029: {'reg': Register.PV4_TOTAL_GENERATION, 'fmt': '!L', 'ratio': 0.01},  # noqa: E501
+    }
+
+    def __init__(self, snd_handler: Callable[[bytes, int, str], None],
+                 timeout: int = 1):
+        if not len(self.__crc_tab):
+            self.__build_crc_tab(CRC_POLY)
+        self.que = asyncio.Queue(100)
+        self.snd_handler = snd_handler
+        '''Send handler to transmit a MODBUS RTU request'''
+        self.rsp_handler = None
+        '''Response handler to forward the response'''
+        self.timeout = timeout
+        '''MODBUS response timeout in seconds'''
+        self.max_retries = 1
+        '''Max retransmit for MODBUS requests'''
+        self.retry_cnt = 0
+        self.last_req = b''
+        self.counter = {}
+        '''Dictenary with statistic counter'''
+        self.counter['timeouts'] = 0
+        self.counter['retries'] = {}
+        for i in range(0, self.max_retries+1):
+            self.counter['retries'][f'{i}'] = 0
+        self.last_log_lvl = logging.DEBUG
+        self.last_addr = 0
+        self.last_fcode = 0
+        self.last_len = 0
+        self.last_reg = 0
+        self.err = 0
+        self.loop = asyncio.get_event_loop()
+        self.req_pend = False
+        self.tim = None
+
+    def close(self):
+        """free the queue and erase the callback handlers"""
+        logging.debug('Modbus close:')
+        self.__stop_timer()
+        self.rsp_handler = None
+        self.snd_handler = None
+        while not self.que.empty:
+            self.que.get_nowait()
+
+    def __del__(self):
+        """log statistics on the deleting of a MODBUS instance"""
+        logging.debug(f'Modbus __del__:\n {self.counter}')
+
+    def build_msg(self, addr: int, func: int, reg: int, val: int,
+                  log_lvl=logging.DEBUG) -> None:
+        """Build MODBUS RTU request frame and add it to the tx queue
+
+        Keyword arguments:
+            addr: RTU server address (inverter)
+            func: MODBUS function code
+            reg:  16-bit register number
+            val:  16 bit value
+        """
+        msg = struct.pack('>BBHH', addr, func, reg, val)
+        msg += struct.pack('<H', self.__calc_crc(msg))
+        self.que.put_nowait({'req': msg,
+                             'rsp_hdl': None,
+                             'log_lvl': log_lvl})
+        if self.que.qsize() == 1:
+            self.__send_next_from_que()
+
+    def recv_req(self, buf: bytearray,
+                 rsp_handler: Callable[[None], None] = None) -> bool:
+        """Add the received Modbus RTU request to the tx queue
+
+        Keyword arguments:
+            buf: Modbus RTU pdu incl ADDR byte and trailing CRC
+            rsp_handler: Callback, if the received pdu is valid
+
+        Returns:
+            True:   PDU was added to the queue
+            False:  PDU was ignored, due to an error
+        """
+        # logging.info(f'recv_req: first byte modbus:{buf[0]} len:{len(buf)}')
+        if not self.__check_crc(buf):
+            self.err = 1
+            logger.error('Modbus recv: CRC error')
+            return False
+        self.que.put_nowait({'req': buf,
+                             'rsp_hdl': rsp_handler,
+                             'log_lvl': logging.INFO})
+        if self.que.qsize() == 1:
+            self.__send_next_from_que()
+
+        return True
+
+    def recv_resp(self, info_db, buf: bytearray, node_id: str) -> \
+            Generator[tuple[str, bool, int | float | str], None, None]:
+        """Generator which check and parse a received MODBUS response.
+
+        Keyword arguments:
+            info_db: database for info lockups
+            buf: received Modbus RTU response frame
+            node_id: string for logging which identifies the slave
+
+        Returns on error and set Self.err to:
+            1: CRC error
+            2: Wrong server address
+            3: Unexpected function code
+            4: Unexpected data length
+            5: No MODBUS request pending
+        """
+        # logging.info(f'recv_resp: first byte modbus:{buf[0]} len:{len(buf)}')
+        if not self.req_pend:
+            self.err = 5
+            return
+        if not self.__check_crc(buf):
+            logger.error(f'[{node_id}] Modbus resp: CRC error')
+            self.err = 1
+            return
+        if buf[0] != self.last_addr:
+            logger.info(f'[{node_id}] Modbus resp: Wrong addr {buf[0]}')
+            self.err = 2
+            return
+        fcode = buf[1]
+        if fcode != self.last_fcode:
+            logger.info(f'[{node_id}] Modbus: Wrong fcode {fcode}'
+                        f' != {self.last_fcode}')
+            self.err = 3
+            return
+        if self.last_addr == self.INV_ADDR and \
+                (fcode == 3 or fcode == 4):
+            elmlen = buf[2] >> 1
+            if elmlen != self.last_len:
+                logger.info(f'[{node_id}] Modbus: len error {elmlen}'
+                            f' != {self.last_len}')
+                self.err = 4
+                return
+            first_reg = self.last_reg  # save last_reg before sending next pdu
+            self.__stop_timer()          # stop timer and send next pdu
+
+            for i in range(0, elmlen):
+                addr = first_reg+i
+                if addr in self.map:
+                    row = self.map[addr]
+                    info_id = row['reg']
+                    fmt = row['fmt']
+                    val = struct.unpack_from(fmt, buf, 3+2*i)
+                    result = val[0]
+
+                    if 'eval' in row:
+                        result = eval(row['eval'])
+                    if 'ratio' in row:
+                        result = round(result * row['ratio'], 2)
+
+                    keys, level, unit, must_incr = info_db._key_obj(info_id)
+
+                    if keys:
+                        name, update = info_db.update_db(keys, must_incr,
+                                                         result)
+                        yield keys[0], update, result
+                        if update:
+                            info_db.tracer.log(level,
+                                               f'[{node_id}] MODBUS: {name}'
+                                               f' : {result}{unit}')
+        else:
+            self.__stop_timer()
+
+        self.counter['retries'][f'{self.retry_cnt}'] += 1
+        if self.rsp_handler:
+            self.rsp_handler()
+        self.__send_next_from_que()
+
+    '''
+    MODBUS response timer
+    '''
+    def __start_timer(self) -> None:
+        '''Start response timer and set `req_pend` to True'''
+        self.req_pend = True
+        self.tim = self.loop.call_later(self.timeout, self.__timeout_cb)
+        # logging.debug(f'Modbus start timer {self}')
+
+    def __stop_timer(self) -> None:
+        '''Stop response timer and set `req_pend` to False'''
+        self.req_pend = False
+        # logging.debug(f'Modbus stop timer {self}')
+        if self.tim:
+            self.tim.cancel()
+            self.tim = None
+
+    def __timeout_cb(self) -> None:
+        '''Rsponse timeout handler retransmit pdu or send next pdu'''
+        self.req_pend = False
+
+        if self.retry_cnt < self.max_retries:
+            logger.debug(f'Modbus retrans {self}')
+            self.retry_cnt += 1
+            self.__start_timer()
+            self.snd_handler(self.last_req, self.last_log_lvl, state='Retrans')
+        else:
+            logger.info(f'Modbus timeout {self}')
+            self.counter['timeouts'] += 1
+            self.__send_next_from_que()
+
+    def __send_next_from_que(self) -> None:
+        '''Get next MODBUS pdu from queue and transmit it'''
+        if self.req_pend:
+            return
+        try:
+            item = self.que.get_nowait()
+            req = item['req']
+            self.last_req = req
+            self.rsp_handler = item['rsp_hdl']
+            self.last_log_lvl = item['log_lvl']
+            self.last_addr = req[0]
+            self.last_fcode = req[1]
+
+            res = struct.unpack_from('>HH', req, 2)
+            self.last_reg = res[0]
+            self.last_len = res[1]
+            self.retry_cnt = 0
+            self.__start_timer()
+            self.snd_handler(self.last_req, self.last_log_lvl, state='Command')
+        except asyncio.QueueEmpty:
+            pass
+
+    '''
+    Helper function for CRC-16 handling
+    '''
+    def __check_crc(self, msg: bytearray) -> bool:
+        '''Check CRC-16 and returns True if valid'''
+        return 0 == self.__calc_crc(msg)
+
+    def __calc_crc(self, buffer: bytearray) -> int:
+        '''Build CRC-16 for buffer and returns it'''
+        crc = CRC_INIT
+
+        for cur in buffer:
+            crc = (crc >> 8) ^ self.__crc_tab[(crc ^ cur) & 0xFF]
+        return crc
+
+    def __build_crc_tab(self, poly: int) -> None:
+        '''Build CRC-16 helper table, must be called exactly one time'''
+        for index in range(256):
+            data = index << 1
+            crc = 0
+            for _ in range(8, 0, -1):
+                data >>= 1
+                if (data ^ crc) & 1:
+                    crc = (crc >> 1) ^ poly
+                else:
+                    crc >>= 1
+            self.__crc_tab.append(crc)

app/src/mqtt.py

@@ -1,22 +1,15 @@
 import asyncio
 import logging
 import aiomqtt
+import traceback
+from modbus import Modbus
+from messages import Message
 from config import Config
+from singleton import Singleton
 
 logger_mqtt = logging.getLogger('mqtt')
 
 
-class Singleton(type):
-    _instances = {}
-
-    def __call__(cls, *args, **kwargs):
-        logger_mqtt.debug('singleton: __call__')
-        if cls not in cls._instances:
-            cls._instances[cls] = super(Singleton,
-                                        cls).__call__(*args, **kwargs)
-        return cls._instances[cls]
-
-
 class Mqtt(metaclass=Singleton):
     __client = None
     __cb_MqttIsUp = None
@@ -65,6 +58,12 @@ class Mqtt(metaclass=Singleton):
                                        password=mqtt['passwd'])
 
         interval = 5  # Seconds
+        ha_status_topic = f"{ha['auto_conf_prefix']}/status"
+        mb_rated_topic = "tsun/+/rated_load"  # fixme
+        mb_reads_topic = "tsun/+/modbus_read_regs"  # fixme
+        mb_inputs_topic = "tsun/+/modbus_read_inputs"  # fixme
+        mb_at_cmd_topic = "tsun/+/at_cmd"  # fixme
+
         while True:
             try:
                 async with self.__client:
@@ -74,16 +73,36 @@ class Mqtt(metaclass=Singleton):
                         await self.__cb_MqttIsUp()
 
                     # async with self.__client.messages() as messages:
-                    await self.__client.subscribe(
+                    await self.__client.subscribe(ha_status_topic)
-                        f"{ha['auto_conf_prefix']}"
+                    await self.__client.subscribe(mb_rated_topic)
-                        "/status")
+                    await self.__client.subscribe(mb_reads_topic)
+                    await self.__client.subscribe(mb_inputs_topic)
+                    await self.__client.subscribe(mb_at_cmd_topic)
+
                     async for message in self.__client.messages:
-                        status = message.payload.decode("UTF-8")
+                        if message.topic.matches(ha_status_topic):
-                        logger_mqtt.info('Home-Assistant Status:'
+                            status = message.payload.decode("UTF-8")
-                                         f' {status}')
+                            logger_mqtt.info('Home-Assistant Status:'
-                        if status == 'online':
+                                             f' {status}')
-                            self.ha_restarts += 1
+                            if status == 'online':
-                            await self.__cb_MqttIsUp()
+                                self.ha_restarts += 1
+                                await self.__cb_MqttIsUp()
+
+                        if message.topic.matches(mb_rated_topic):
+                            await self.modbus_cmd(message,
+                                                  Modbus.WRITE_SINGLE_REG,
+                                                  1, 0x2008)
+
+                        if message.topic.matches(mb_reads_topic):
+                            await self.modbus_cmd(message,
+                                                  Modbus.READ_REGS, 2)
+
+                        if message.topic.matches(mb_inputs_topic):
+                            await self.modbus_cmd(message,
+                                                  Modbus.READ_INPUTS, 2)
+
+                        if message.topic.matches(mb_at_cmd_topic):
+                            await self.at_cmd(message)
 
             except aiomqtt.MqttError:
                 if Config.is_default('mqtt'):
@@ -101,3 +120,54 @@ class Mqtt(metaclass=Singleton):
                 logger_mqtt.debug("MQTT task cancelled")
                 self.__client = None
                 return
+            except Exception:
+                # self.inc_counter('SW_Exception')   # fixme
+                logger_mqtt.error(
+                    f"Exception:\n"
+                    f"{traceback.format_exc()}")
+
+    def each_inverter(self, message, func_name: str):
+        topic = str(message.topic)
+        node_id = topic.split('/')[1] + '/'
+        found = False
+        for m in Message:
+            if m.server_side and (m.node_id == node_id):
+                found = True
+                logger_mqtt.debug(f'Found: {node_id}')
+                fnc = getattr(m, func_name, None)
+                if callable(fnc):
+                    yield fnc
+                else:
+                    logger_mqtt.warning(f'Cmd not supported by: {node_id}')
+
+        if not found:
+            logger_mqtt.warning(f'Node_id: {node_id} not found')
+
+    async def modbus_cmd(self, message, func, params=0, addr=0, val=0):
+        topic = str(message.topic)
+        node_id = topic.split('/')[1] + '/'
+        # refactor into a loop over a table
+        payload = message.payload.decode("UTF-8")
+        logger_mqtt.info(f'MODBUS via MQTT: {topic} = {payload}')
+        for m in Message:
+            if m.server_side and (m.node_id == node_id):
+                logger_mqtt.debug(f'Found: {node_id}')
+                fnc = getattr(m, "send_modbus_cmd", None)
+                res = payload.split(',')
+                if params != len(res):
+                    logger_mqtt.error(f'Parameter expected: {params}, '
+                                      f'got: {len(res)}')
+                    return
+
+                if callable(fnc):
+                    if params == 1:
+                        val = int(payload)
+                    elif params == 2:
+                        addr = int(res[0], base=16)
+                        val = int(res[1])  # lenght
+                    await fnc(func, addr, val, logging.INFO)
+
+    async def at_cmd(self, message):
+        payload = message.payload.decode("UTF-8")
+        for fnc in self.each_inverter(message, "send_at_cmd"):
+            await fnc(payload)

app/src/my_timer.py

@@ -0,0 +1,35 @@
+import asyncio
+import logging
+from itertools import count
+
+
+class Timer:
+    def __init__(self, cb, id_str: str = ''):
+        self.__timeout_cb = cb
+        self.loop = asyncio.get_event_loop()
+        self.tim = None
+        self.id_str = id_str
+        self.exp_count = count(0)
+
+    def start(self, timeout: float) -> None:
+        '''Start timer with timeout seconds'''
+        if self.tim:
+            self.tim.cancel()
+        self.tim = self.loop.call_later(timeout, self.__timeout)
+        logging.debug(f'[{self.id_str}]Start timer')
+
+    def stop(self) -> None:
+        '''Stop timer'''
+        logging.debug(f'[{self.id_str}]Stop timer')
+        if self.tim:
+            self.tim.cancel()
+            self.tim = None
+
+    def __timeout(self) -> None:
+        '''timer expired handler'''
+        logging.debug(f'[{self.id_str}]Timer expired')
+        self.__timeout_cb(next(self.exp_count))
+
+    def close(self) -> None:
+        self.stop()
+        self.__timeout_cb = None

app/src/scheduler.py

@@ -9,15 +9,15 @@ logger_mqtt = logging.getLogger('mqtt')
 
 class Schedule:
     mqtt = None
+    count = 0
 
     @classmethod
     def start(cls) -> None:
         '''Start the scheduler and schedule the tasks (cron jobs)'''
-        logging.info("Scheduler init")
+        logging.debug("Scheduler init")
         cls.mqtt = Mqtt(None)
 
         crontab('0 0 * * *', func=cls.atmidnight, start=True)
-        # crontab('*/5 * * * *', func=cls.atmidnight, start=True)
 
     @classmethod
     async def atmidnight(cls) -> None:

app/src/server.py

@@ -1,8 +1,9 @@
 import logging
 import asyncio
 import signal
-import functools
 import os
+from asyncio import StreamReader, StreamWriter
+from aiohttp import web
 from logging import config  # noqa F401
 from messages import Message
 from inverter import Inverter
@@ -11,38 +12,114 @@ from gen3plus.inverter_g3p import InverterG3P
 from scheduler import Schedule
 from config import Config
 
+routes = web.RouteTableDef()
+proxy_is_up = False
 
-async def handle_client(reader, writer):
+
+@routes.get('/')
+async def hello(request):
+    return web.Response(text="Hello, world")
+
+
+@routes.get('/-/ready')
+async def ready(request):
+    if proxy_is_up:
+        status = 200
+        text = 'Is ready'
+    else:
+        status = 503
+        text = 'Not ready'
+    return web.Response(status=status, text=text)
+
+
+@routes.get('/-/healthy')
+async def healthy(request):
+
+    if proxy_is_up:
+        # logging.info('web reqeust healthy()')
+        for stream in Message:
+            try:
+                res = stream.healthy()
+                if not res:
+                    return web.Response(status=503, text="I have a problem")
+            except Exception as err:
+                logging.info(f'Exception:{err}')
+
+    return web.Response(status=200, text="I'm fine")
+
+
+async def webserver(addr, port):
+    '''coro running our webserver'''
+    app = web.Application()
+    app.add_routes(routes)
+    runner = web.AppRunner(app)
+
+    await runner.setup()
+    site = web.TCPSite(runner, addr, port)
+    await site.start()
+    logging.info(f'HTTP server listen on port: {port}')
+
+    try:
+        # Normal interaction with aiohttp
+        while True:
+            await asyncio.sleep(3600)  # sleep forever
+    except asyncio.CancelledError:
+        logging.info('HTTP server cancelled')
+        await runner.cleanup()
+        logging.debug('HTTP cleanup done')
+
+
+async def handle_client(reader: StreamReader, writer: StreamWriter):
     '''Handles a new incoming connection and starts an async loop'''
 
     addr = writer.get_extra_info('peername')
     await InverterG3(reader, writer, addr).server_loop(addr)
 
 
-async def handle_client_v2(reader, writer):
+async def handle_client_v2(reader: StreamReader, writer: StreamWriter):
     '''Handles a new incoming connection and starts an async loop'''
 
     addr = writer.get_extra_info('peername')
     await InverterG3P(reader, writer, addr).server_loop(addr)
 
 
-def handle_SIGTERM(loop):
+async def handle_shutdown(web_task):
     '''Close all TCP connections and stop the event loop'''
 
     logging.info('Shutdown due to SIGTERM')
+    global proxy_is_up
+    proxy_is_up = False
 
     #
-    # first, close all open TCP connections
+    # first, disc all open TCP connections gracefully
+    #
+    for stream in Message:
+        try:
+            await asyncio.wait_for(stream.disc(), 2)
+        except Exception:
+            pass
+    logging.info('Proxy disconnecting done')
+
+    #
+    # second, close all open TCP connections
     #
     for stream in Message:
         stream.close()
 
-    #
+    await asyncio.sleep(0.1)  # give time for closing
-    # at last, we stop the loop
+    logging.info('Proxy closing done')
-    #
-    loop.stop()
 
-    logging.info('Shutdown complete')
+    #
+    # third, cancel the web server
+    #
+    web_task.cancel()
+    await web_task
+
+    #
+    # at last, start a coro for stopping the loop
+    #
+    logging.debug("Stop event loop")
+    loop.stop()
 
 
 def get_log_level() -> int:
@@ -74,39 +151,48 @@ if __name__ == "__main__":
     logging.getLogger('msg').setLevel(log_level)
     logging.getLogger('conn').setLevel(log_level)
     logging.getLogger('data').setLevel(log_level)
+    logging.getLogger('tracer').setLevel(log_level)
+    logging.getLogger('asyncio').setLevel(log_level)
     # logging.getLogger('mqtt').setLevel(log_level)
 
-    # read config file
-    Config.read()
-
     loop = asyncio.new_event_loop()
     asyncio.set_event_loop(loop)
 
+    # read config file
+    ConfigErr = Config.class_init()
+    if ConfigErr is not None:
+        logging.info(f'ConfigErr: {ConfigErr}')
     Inverter.class_init()
     Schedule.start()
 
+    #
+    # Create tasks for our listening servers. These must be tasks! If we call
+    # start_server directly out of our main task, the eventloop will be blocked
+    # and we can't receive and handle the UNIX signals!
+    #
+    loop.create_task(asyncio.start_server(handle_client, '0.0.0.0', 5005))
+    loop.create_task(asyncio.start_server(handle_client_v2, '0.0.0.0', 10000))
+    web_task = loop.create_task(webserver('0.0.0.0', 8127))
+
     #
     # Register some UNIX Signal handler for a gracefully server shutdown
     # on Docker restart and stop
     #
     for signame in ('SIGINT', 'SIGTERM'):
         loop.add_signal_handler(getattr(signal, signame),
-                                functools.partial(handle_SIGTERM, loop))
+                                lambda loop=loop: asyncio.create_task(
-
+                                    handle_shutdown(web_task)))
-    #
-    # Create taska for our listening servera. These must be tasks! If we call
-    # start_server directly out of our main task, the eventloop will be blocked
-    # and we can't receive and handle the UNIX signals!
-    #
-    loop.create_task(asyncio.start_server(handle_client, '0.0.0.0', 5005))
-    loop.create_task(asyncio.start_server(handle_client_v2, '0.0.0.0', 10000))
 
+    loop.set_debug(log_level == logging.DEBUG)
     try:
+        if ConfigErr is None:
+            proxy_is_up = True
         loop.run_forever()
     except KeyboardInterrupt:
         pass
     finally:
+        logging.info("Event loop is stopped")
         Inverter.class_close(loop)
-        logging.info('Close event loop')
+        logging.debug('Close event loop')
         loop.close()
         logging.info(f'Finally, exit Server "{serv_name}"')

app/src/singleton.py

@@ -0,0 +1,9 @@
+class Singleton(type):
+    _instances = {}
+
+    def __call__(cls, *args, **kwargs):
+        # logger_mqtt.debug('singleton: __call__')
+        if cls not in cls._instances:
+            cls._instances[cls] = super(Singleton,
+                                        cls).__call__(*args, **kwargs)
+        return cls._instances[cls]

app/tests/test_config.py

@@ -0,0 +1,142 @@
+# test_with_pytest.py
+import tomllib
+from schema import SchemaMissingKeyError
+from app.src.config import Config
+
+class TstConfig(Config):
+
+    @classmethod
+    def set(cls, cnf):
+        cls.config = cnf
+
+    @classmethod
+    def _read_config_file(cls) -> dict:
+        return cls.config
+
+
+def test_empty_config():
+    cnf = {}
+    try:
+        Config.conf_schema.validate(cnf)
+        assert False
+    except SchemaMissingKeyError:
+        assert True
+
+def test_default_config():
+    with open("app/config/default_config.toml", "rb") as f:
+        cnf = tomllib.load(f)
+
+    try:
+        validated = Config.conf_schema.validate(cnf)
+        assert True
+    except:
+        assert False
+    assert validated == {'gen3plus': {'at_acl': {'mqtt': {'allow': ['AT+'], 'block': []}, 'tsun': {'allow': ['AT+Z', 'AT+UPURL', 'AT+SUPDATE'], 'block': []}}}, 'tsun': {'enabled': True, 'host': 'logger.talent-monitoring.com', 'port': 5005}, 'solarman': {'enabled': True, 'host': 'iot.talent-monitoring.com', 'port': 10000}, 'mqtt': {'host': 'mqtt', 'port': 1883, 'user': None, 'passwd': None}, 'ha': {'auto_conf_prefix': 'homeassistant', 'discovery_prefix': 'homeassistant', 'entity_prefix': 'tsun', 'proxy_node_id': 'proxy', 'proxy_unique_id': 'P170000000000001'}, 'inverters': {'allow_all': True, 'R170000000000001': {'node_id': '', 'monitor_sn': 0, 'suggested_area': ''}, 'Y170000000000001': {'monitor_sn': 2000000000, 'node_id': '', 'suggested_area': ''}}}
+
+def test_full_config():
+    cnf = {'tsun': {'enabled': True, 'host': 'logger.talent-monitoring.com', 'port': 5005}, 
+           'gen3plus': {'at_acl': {'mqtt': {'allow': ['AT+'], 'block': []},
+                                   'tsun': {'allow': ['AT+Z', 'AT+UPURL', 'AT+SUPDATE'], 'block': []}}},
+           'solarman': {'enabled': True, 'host': 'iot.talent-monitoring.com', 'port': 10000}, 
+           'mqtt': {'host': 'mqtt', 'port': 1883, 'user': '', 'passwd': ''}, 
+           'ha': {'auto_conf_prefix': 'homeassistant', 'discovery_prefix': 'homeassistant', 'entity_prefix': 'tsun', 'proxy_node_id': 'proxy', 'proxy_unique_id': 'P170000000000001'}, 
+           'inverters': {'allow_all': True, 
+                         'R170000000000001': {'node_id': '', 'suggested_area': '', 'pv1': {'type': 'type1', 'manufacturer': 'man1'}, 'pv2': {'type': 'type2', 'manufacturer': 'man2'}, 'pv3': {'type': 'type3', 'manufacturer': 'man3'}}, 
+                         'Y170000000000001': {'monitor_sn': 2000000000, 'node_id': '', 'suggested_area': ''}}}
+    try:
+        validated = Config.conf_schema.validate(cnf)
+        assert True
+    except:
+        assert False
+    assert validated == {'gen3plus': {'at_acl': {'mqtt': {'allow': ['AT+'], 'block': []}, 'tsun': {'allow': ['AT+Z', 'AT+UPURL', 'AT+SUPDATE'], 'block': []}}}, 'tsun': {'enabled': True, 'host': 'logger.talent-monitoring.com', 'port': 5005}, 'solarman': {'enabled': True, 'host': 'iot.talent-monitoring.com', 'port': 10000}, 'mqtt': {'host': 'mqtt', 'port': 1883, 'user': None, 'passwd': None}, 'ha': {'auto_conf_prefix': 'homeassistant', 'discovery_prefix': 'homeassistant', 'entity_prefix': 'tsun', 'proxy_node_id': 'proxy', 'proxy_unique_id': 'P170000000000001'}, 'inverters': {'allow_all': True, 'R170000000000001': {'node_id': '', 'monitor_sn': 0, 'pv1': {'manufacturer': 'man1','type': 'type1'},'pv2': {'manufacturer': 'man2','type': 'type2'},'pv3': {'manufacturer': 'man3','type': 'type3'}, 'suggested_area': ''}, 'Y170000000000001': {'monitor_sn': 2000000000, 'node_id': '', 'suggested_area': ''}}}
+
+def test_mininum_config():
+    cnf = {'tsun': {'enabled': True, 'host': 'logger.talent-monitoring.com', 'port': 5005}, 
+           'gen3plus': {'at_acl': {'mqtt': {'allow': ['AT+']},
+                                   'tsun': {'allow': ['AT+Z', 'AT+UPURL', 'AT+SUPDATE']}}},
+           'solarman': {'enabled': True, 'host': 'iot.talent-monitoring.com', 'port': 10000}, 
+           'mqtt': {'host': 'mqtt', 'port': 1883, 'user': '', 'passwd': ''}, 
+           'ha': {'auto_conf_prefix': 'homeassistant', 'discovery_prefix': 'homeassistant', 'entity_prefix': 'tsun', 'proxy_node_id': 'proxy', 'proxy_unique_id': 'P170000000000001'}, 
+           'inverters': {'allow_all': True,
+                         'R170000000000001': {}}
+    } 
+
+    try:
+        validated = Config.conf_schema.validate(cnf)
+        assert True
+    except:
+        assert False
+    assert validated == {'gen3plus': {'at_acl': {'mqtt': {'allow': ['AT+'], 'block': []}, 'tsun': {'allow': ['AT+Z', 'AT+UPURL', 'AT+SUPDATE'], 'block': []}}}, 'tsun': {'enabled': True, 'host': 'logger.talent-monitoring.com', 'port': 5005}, 'solarman': {'enabled': True, 'host': 'iot.talent-monitoring.com', 'port': 10000}, 'mqtt': {'host': 'mqtt', 'port': 1883, 'user': None, 'passwd': None}, 'ha': {'auto_conf_prefix': 'homeassistant', 'discovery_prefix': 'homeassistant', 'entity_prefix': 'tsun', 'proxy_node_id': 'proxy', 'proxy_unique_id': 'P170000000000001'}, 'inverters': {'allow_all': True, 'R170000000000001': {'node_id': '', 'monitor_sn': 0, 'suggested_area': ''}}}
+
+def test_read_empty():
+    cnf = {}
+    TstConfig.set(cnf)
+    err = TstConfig.read('app/config/')
+    assert err == None
+    cnf = TstConfig.get()
+    assert cnf == {'gen3plus': {'at_acl': {'mqtt': {'allow': ['AT+'], 'block': []}, 'tsun': {'allow': ['AT+Z', 'AT+UPURL', 'AT+SUPDATE'], 'block': []}}}, 'tsun': {'enabled': True, 'host': 'logger.talent-monitoring.com', 'port': 5005}, 'solarman': {'enabled': True, 'host': 'iot.talent-monitoring.com', 'port': 10000}, 'mqtt': {'host': 'mqtt', 'port': 1883, 'user': None, 'passwd': None}, 'ha': {'auto_conf_prefix': 'homeassistant', 'discovery_prefix': 'homeassistant', 'entity_prefix': 'tsun', 'proxy_node_id': 'proxy', 'proxy_unique_id': 'P170000000000001'}, 'inverters': {'allow_all': True, 'R170000000000001': {'suggested_area': '', 'monitor_sn': 0, 'node_id': ''}, 'Y170000000000001': {'monitor_sn': 2000000000, 'suggested_area': '', 'node_id': ''}}}
+    
+    defcnf = TstConfig.def_config.get('solarman') 
+    assert defcnf == {'enabled': True, 'host': 'iot.talent-monitoring.com', 'port': 10000}
+    assert True == TstConfig.is_default('solarman')
+
+def test_no_file():
+    cnf = {}
+    TstConfig.set(cnf)
+    err = TstConfig.read('')
+    assert err == "Config.read: [Errno 2] No such file or directory: 'default_config.toml'"
+    cnf = TstConfig.get()
+    assert cnf == {}    
+    defcnf = TstConfig.def_config.get('solarman') 
+    assert defcnf == None
+
+def test_read_cnf1():
+    cnf = {'solarman' : {'enabled': False}}
+    TstConfig.set(cnf)
+    err = TstConfig.read('app/config/')
+    assert err == None
+    cnf = TstConfig.get()
+    assert cnf == {'gen3plus': {'at_acl': {'mqtt': {'allow': ['AT+'], 'block': []}, 'tsun': {'allow': ['AT+Z', 'AT+UPURL', 'AT+SUPDATE'], 'block': []}}}, 'tsun': {'enabled': True, 'host': 'logger.talent-monitoring.com', 'port': 5005}, 'solarman': {'enabled': False, 'host': 'iot.talent-monitoring.com', 'port': 10000}, 'mqtt': {'host': 'mqtt', 'port': 1883, 'user': None, 'passwd': None}, 'ha': {'auto_conf_prefix': 'homeassistant', 'discovery_prefix': 'homeassistant', 'entity_prefix': 'tsun', 'proxy_node_id': 'proxy', 'proxy_unique_id': 'P170000000000001'}, 'inverters': {'allow_all': True, 'R170000000000001': {'suggested_area': '', 'monitor_sn': 0, 'node_id': ''}, 'Y170000000000001': {'monitor_sn': 2000000000, 'suggested_area': '', 'node_id': ''}}}
+    cnf = TstConfig.get('solarman')
+    assert cnf == {'enabled': False, 'host': 'iot.talent-monitoring.com', 'port': 10000}    
+    defcnf = TstConfig.def_config.get('solarman') 
+    assert defcnf == {'enabled': True, 'host': 'iot.talent-monitoring.com', 'port': 10000}
+    assert False == TstConfig.is_default('solarman')
+                   
+def test_read_cnf2():
+    cnf = {'solarman' : {'enabled': 'FALSE'}}
+    TstConfig.set(cnf)
+    err = TstConfig.read('app/config/')
+    assert err == None
+    cnf = TstConfig.get()
+    assert cnf == {'gen3plus': {'at_acl': {'mqtt': {'allow': ['AT+'], 'block': []}, 'tsun': {'allow': ['AT+Z', 'AT+UPURL', 'AT+SUPDATE'], 'block': []}}}, 'tsun': {'enabled': True, 'host': 'logger.talent-monitoring.com', 'port': 5005}, 'solarman': {'enabled': True, 'host': 'iot.talent-monitoring.com', 'port': 10000}, 'mqtt': {'host': 'mqtt', 'port': 1883, 'user': None, 'passwd': None}, 'ha': {'auto_conf_prefix': 'homeassistant', 'discovery_prefix': 'homeassistant', 'entity_prefix': 'tsun', 'proxy_node_id': 'proxy', 'proxy_unique_id': 'P170000000000001'}, 'inverters': {'allow_all': True, 'R170000000000001': {'suggested_area': '', 'monitor_sn': 0, 'node_id': ''}, 'Y170000000000001': {'monitor_sn': 2000000000, 'suggested_area': '', 'node_id': ''}}}
+    assert True == TstConfig.is_default('solarman')
+
+def test_read_cnf3():
+    cnf = {'solarman' : {'port': 'FALSE'}}
+    TstConfig.set(cnf)
+    err = TstConfig.read('app/config/')
+    assert err == 'Config.read: Key \'solarman\' error:\nKey \'port\' error:\nint(\'FALSE\') raised ValueError("invalid literal for int() with base 10: \'FALSE\'")'
+    cnf = TstConfig.get()
+    assert cnf == {'solarman': {'port': 'FALSE'}}
+
+def test_read_cnf4():
+    cnf = {'solarman' : {'port': 5000}}
+    TstConfig.set(cnf)
+    err = TstConfig.read('app/config/')
+    assert err == None
+    cnf = TstConfig.get()
+    assert cnf == {'gen3plus': {'at_acl': {'mqtt': {'allow': ['AT+'], 'block': []}, 'tsun': {'allow': ['AT+Z', 'AT+UPURL', 'AT+SUPDATE'], 'block': []}}}, 'tsun': {'enabled': True, 'host': 'logger.talent-monitoring.com', 'port': 5005}, 'solarman': {'enabled': True, 'host': 'iot.talent-monitoring.com', 'port': 5000}, 'mqtt': {'host': 'mqtt', 'port': 1883, 'user': None, 'passwd': None}, 'ha': {'auto_conf_prefix': 'homeassistant', 'discovery_prefix': 'homeassistant', 'entity_prefix': 'tsun', 'proxy_node_id': 'proxy', 'proxy_unique_id': 'P170000000000001'}, 'inverters': {'allow_all': True, 'R170000000000001': {'suggested_area': '', 'monitor_sn': 0, 'node_id': ''}, 'Y170000000000001': {'monitor_sn': 2000000000, 'suggested_area': '', 'node_id': ''}}}
+    assert False == TstConfig.is_default('solarman')
+
+def test_read_cnf5():
+    cnf = {'solarman' : {'port': 1023}}
+    TstConfig.set(cnf)
+    err = TstConfig.read('app/config/')
+    assert err != None
+
+def test_read_cnf6():
+    cnf = {'solarman' : {'port': 65536}}
+    TstConfig.set(cnf)
+    err = TstConfig.read('app/config/')
+    assert err != None

app/tests/test_infos.py

@@ -17,13 +17,13 @@ def test_statistic_counter():
     assert val == None or val == 0
 
     i.static_init()                # initialize counter
-    assert json.dumps(i.stat) == json.dumps({"proxy": {"Inverter_Cnt": 0, "Unknown_SNR": 0, "Unknown_Msg": 0, "Invalid_Data_Type": 0, "Internal_Error": 0,"Unknown_Ctrl": 0, "OTA_Start_Msg": 0, "SW_Exception": 0, "Invalid_Msg_Format": 0, "AT_Command": 0}})
+    assert json.dumps(i.stat) == json.dumps({"proxy": {"Inverter_Cnt": 0, "Unknown_SNR": 0, "Unknown_Msg": 0, "Invalid_Data_Type": 0, "Internal_Error": 0,"Unknown_Ctrl": 0, "OTA_Start_Msg": 0, "SW_Exception": 0, "Invalid_Msg_Format": 0, "AT_Command": 0, "AT_Command_Blocked": 0, "Modbus_Command": 0}})
                                             
     val = i.dev_value(Register.INVERTER_CNT)  # valid and initiliazed addr
     assert val == 0
 
     i.inc_counter('Inverter_Cnt')
-    assert json.dumps(i.stat) == json.dumps({"proxy": {"Inverter_Cnt": 1, "Unknown_SNR": 0, "Unknown_Msg": 0, "Invalid_Data_Type": 0, "Internal_Error": 0,"Unknown_Ctrl": 0, "OTA_Start_Msg": 0, "SW_Exception": 0, "Invalid_Msg_Format": 0, "AT_Command": 0}})
+    assert json.dumps(i.stat) == json.dumps({"proxy": {"Inverter_Cnt": 1, "Unknown_SNR": 0, "Unknown_Msg": 0, "Invalid_Data_Type": 0, "Internal_Error": 0,"Unknown_Ctrl": 0, "OTA_Start_Msg": 0, "SW_Exception": 0, "Invalid_Msg_Format": 0, "AT_Command": 0, "AT_Command_Blocked": 0, "Modbus_Command": 0}})
     val = i.dev_value(Register.INVERTER_CNT)
     assert val == 1
 

app/tests/test_infos_g3.py

@@ -140,6 +140,82 @@ def InvDataSeq2(): # Data indication from the controller
     msg +=  b'\x53\x00\x00'  
     return msg
 
+@pytest.fixture
+def InvDataNew(): # Data indication from DSP V5.0.17
+    msg  = b'\x00\x00\x00\xa3\x00\x00\x00\x00\x53\x00\x00'
+    msg += b'\x00\x00\x00\x80\x53\x00\x00\x00\x00\x01\x04\x53\x00\x00\x00\x00'
+    msg += b'\x01\x90\x41\x00\x00\x01\x91\x53\x00\x00\x00\x00\x01\x90\x53\x00'
+    msg += b'\x00\x00\x00\x01\x91\x53\x00\x00\x00\x00\x01\x90\x53\x00\x00\x00'
+    msg += b'\x00\x01\x91\x53\x00\x00\x00\x00\x01\x94\x53\x00\x00\x00\x00\x01'
+    msg += b'\x95\x53\x00\x00\x00\x00\x01\x98\x53\x00\x00\x00\x00\x01\x99\x53'
+    msg += b'\x00\x00\x00\x00\x01\x80\x53\x00\x00\x00\x00\x01\x90\x41\x00\x00'
+    msg += b'\x01\x94\x53\x00\x00\x00\x00\x01\x94\x53\x00\x00\x00\x00\x01\x96'
+    msg += b'\x53\x00\x00\x00\x00\x01\x98\x53\x00\x00\x00\x00\x01\xa0\x53\x00'
+    msg += b'\x00\x00\x00\x01\xf0\x41\x00\x00\x01\xf1\x53\x00\x00\x00\x00\x01'
+    msg += b'\xf4\x53\x00\x00\x00\x00\x01\xf5\x53\x00\x00\x00\x00\x01\xf8\x53'
+    msg += b'\x00\x00\x00\x00\x01\xf9\x53\x00\x00\x00\x00\x00\x00\x53\x00\x00'
+    msg += b'\x00\x00\x00\x01\x53\x00\x00\x00\x00\x00\x00\x53\x00\x00\x00\x00'
+    msg += b'\x00\x01\x53\x00\x00\x00\x00\x00\x04\x53\x00\x00\x00\x00\x00\x58'
+    msg += b'\x41\x00\x00\x02\x00\x53\x00\x00\x00\x00\x02\x00\x53\x00\x00\x00'
+    msg += b'\x00\x02\x02\x53\x00\x00\x00\x00\x02\x00\x53\x00\x00\x00\x00\x02'
+    msg += b'\x04\x53\x00\x00\x00\x00\x02\x58\x41\x00\x00\x02\x59\x53\x00\x00'
+    msg += b'\x00\x00\x02\x40\x53\x00\x00\x00\x00\x02\x41\x53\x00\x00\x00\x00'
+    msg += b'\x02\x40\x53\x00\x00\x00\x00\x02\x41\x53\x00\x00\x00\x00\x02\x44'
+    msg += b'\x53\x00\x00\x00\x00\x02\x45\x53\x00\x00\x00\x00\x02\x60\x53\x00'
+    msg += b'\x00\x00\x00\x02\x61\x53\x00\x00\x00\x00\x02\x60\x53\x00\x00\x00'
+    msg += b'\x00\x02\x20\x41\x00\x00\x02\x24\x53\x00\x00\x00\x00\x02\x24\x53'
+    msg += b'\x00\x00\x00\x00\x02\x26\x53\x00\x00\x00\x00\x02\x40\x53\x00\x00'
+    msg += b'\x00\x00\x02\x40\x53\x00\x00\x00\x00\x02\x80\x41\x00\x00\x02\x81'
+    msg += b'\x53\x00\x00\x00\x00\x02\x84\x53\x00\x00\x00\x00\x02\x85\x53\x00'
+    msg += b'\x00\x00\x00\x02\xc0\x53\x00\x00\x00\x00\x02\xc1\x53\x00\x00\x00'
+    msg += b'\x00\x02\xc0\x53\x00\x00\x00\x00\x02\xc1\x53\x00\x00\x00\x00\x02'
+    msg += b'\xc0\x53\x00\x00\x00\x00\x02\xc1\x53\x00\x00\x00\x00\x02\xc4\x53'
+    msg += b'\x00\x00\x00\x00\x02\x00\x53\x00\x00\x00\x00\x02\x80\x53\x00\x00'
+    msg += b'\x00\x00\x02\xc8\x42\x00\x00\x00\x00\x48\x42\x00\x00\x00\x00\x80'
+    msg += b'\x42\x00\x00\x00\x00\x04\x53\x00\x00\x00\x00\x01\x20\x53\x00\x00'
+    msg += b'\x00\x00\x01\x84\x53\x00\x10\x00\x00\x02\x40\x46\x00\x00\x00\x00'
+    msg += b'\x00\x00\x04\x04\x46\x02\x00\x46\x02\x00\x00\x04\x00\x46\x00\x00'
+    msg += b'\x00\x00\x00\x00\x05\x04\x42\x00\x00\x00\x05\x50\x42\x00\x00\x00'
+    msg += b'\x00\x14\x42\x00\x00\x00\x00\x00\x46\x00\x00\x00\x00\x00\x00\x00'
+    msg += b'\xa4\x46\x00\x00\x00\x00\x00\x00\x01\x00\x46\x00\x00\x00\x00\x00'
+    msg += b'\x00\x01\x44\x46\x00\x00\x00\x00\x00\x00\x02\x00\x46\x00\x00\x00'
+    msg += b'\x00\x00\x00\x08\x04\x46\x00\x00\x00\x00\x00\x00\x08\x90\x46\x00'
+    msg += b'\x00\x00\x00\x00\x00\x08\x54\x46\x00\x00\x00\x00\x00\x00\x09\x20'
+    msg += b'\x46\x00\x00\x00\x00\x00\x00\x08\x04\x46\x00\x00\x00\x00\x00\x00'
+    msg += b'\x08\x00\x46\x00\x00\x00\x00\x00\x00\x08\x84\x46\x00\x00\x00\x00'
+    msg += b'\x00\x00\x08\x40\x46\x00\x00\x00\x00\x00\x00\x09\x04\x46\x00\x00'
+    msg += b'\x00\x00\x00\x00\x0a\x10\x46\x00\x00\x00\x00\x00\x00\x0c\x14\x46'
+    msg += b'\x00\x00\x00\x00\x00\x00\x0c\x80\x46\x00\x00\x00\x00\x00\x00\x0c'
+    msg += b'\x24\x42\x00\x00\x00\x0d\x00\x42\x00\x00\x00\x00\x04\x42\x00\x00'
+    msg += b'\x00\x00\x00\x42\x00\x00\x00\x00\x44\x42\x00\x00\x00\x00\x10\x42'
+    msg += b'\x00\x00\x00\x01\x14\x53\x00\x00\x00\x00\x01\xa0\x53\x00\x00\x00'
+    msg += b'\x00\x10\x04\x53\x55\xaa\x00\x00\x10\x40\x53\x00\x00\x00\x00\x10'
+    msg += b'\x04\x53\x00\x00\x00\x00\x11\x00\x53\x00\x00\x00\x00\x11\x84\x53'
+    msg += b'\x00\x00\x00\x00\x10\x50\x53\xff\xff\x00\x00\x10\x14\x53\x03\x20'
+    msg += b'\x00\x00\x10\x00\x53\x00\x00\x00\x00\x11\x24\x53\x00\x00\x00\x00'
+    msg += b'\x03\x00\x53\x00\x00\x00\x00\x03\x64\x53\x00\x00\x00\x00\x04\x50'
+    msg += b'\x53\x00\x00\x00\x00\x00\x34\x53\x00\x00\x00\x00\x00\x00\x42\x02'
+    msg += b'\x00\x00\x01\x04\x42\x00\x00\x00\x21\x00\x42\x00\x00\x00\x21\x44'
+    msg += b'\x42\x00\x00\x00\x22\x10\x53\x00\x00\x00\x00\x28\x14\x42\x01\x00'
+    msg += b'\x00\x28\xa0\x46\x42\x48\x00\x00\x00\x00\x29\x04\x42\x00\x00\x00'
+    msg += b'\x29\x40\x42\x00\x00\x00\x28\x04\x46\x42\x10\x00\x00\x00\x00\x28'
+    msg += b'\x00\x42\x00\x00\x00\x28\x84\x42\x00\x00\x00\x28\x50\x42\x00\x00'
+    msg += b'\x00\x29\x14\x42\x00\x00\x00\x2a\x00\x42\x00\x00\x00\x2c\x24\x46'
+    msg += b'\x42\x10\x00\x00\x00\x00\x2c\x80\x42\x00\x00\x00\x2c\x44\x53\x00'
+    msg += b'\x02\x00\x00\x2d\x00\x42\x00\x00\x00\x20\x04\x46\x42\x4d\x00\x00'
+    msg += b'\x00\x00\x20\x10\x42\x00\x00\x00\x20\x54\x42\x00\x00\x00\x20\x20'
+    msg += b'\x42\x00\x00\x00\x21\x04\x53\x00\x01\x00\x00\x22\x00\x42\x00\x00'
+    msg += b'\x00\x30\x04\x42\x00\x00\x00\x30\x40\x53\x00\x00\x00\x00\x30\x04'
+    msg += b'\x53\x00\x00\x00\x00\x31\x10\x42\x00\x00\x00\x31\x94\x53\x00\x04'
+    msg += b'\x00\x00\x30\x00\x53\x00\x00\x00\x00\x30\x24\x53\x00\x00\x00\x00'
+    msg += b'\x30\x00\x53\x00\x00\x00\x00\x31\x04\x53\x00\x00\x00\x00\x31\x80'
+    msg += b'\x53\x00\x00\x00\x00\x32\x44\x53\x00\x00\x00\x00\x30\x00\x53\x00'
+    msg += b'\x00\x00\x00\x30\x80\x53\x00\x00\x00\x00\x30\x00\x53\x00\x00\x00'
+    msg += b'\x00\x30\x80\x53\x00\x00\x00\x00\x00\x08\x00\x00\x00\x00\x00\x00'
+    msg += b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x03\x00'
+    msg += b'\x00\x00\x00\x00'
+    return msg
+
 @pytest.fixture
 def InvDataSeq2_Zero(): # Data indication from the controller
     msg =   b'\x00\x00\x00\xa3\x00\x00\x00\x64\x53\x00\x01\x00\x00\x00\xc8\x53\x00\x02\x00\x00\x01\x2c\x53\x00\x00\x00\x00\x01\x90\x49\x00\x00\x00\x00\x00\x00\x01\x91\x53\x00\x00'
@@ -391,6 +467,25 @@ def test_must_incr_total2(InvDataSeq2, InvDataSeq2_Zero):
     assert json.dumps(i.db['total']) == json.dumps({'Daily_Generation': 1.7, 'Total_Generation': 17.36})
     assert json.dumps(i.db['input']) == json.dumps({"pv1": {"Voltage": 33.6, "Current": 1.91, "Power": 64.5, "Daily_Generation": 1.08, "Total_Generation": 9.74}, "pv2": {"Voltage": 33.5, "Current": 1.36, "Power": 45.7, "Daily_Generation": 0.62, "Total_Generation": 7.62}, "pv3": {"Voltage": 0.0, "Current": 0.0, "Power": 0.0}, "pv4": {"Voltage": 0.0, "Current": 0.0, "Power": 0.0}})
    
+def test_new_data_types(InvDataNew):
+    i = InfosG3()
+    tests = 0
+    for key, update in i.parse (InvDataNew):
+        if key == 'events':
+            tests +=1
+        elif key == 'inverter':
+            assert update == True
+            tests +=1
+        elif key == 'input':
+            assert update == False
+            tests +=1
+        else:
+            assert False
+
+    assert tests==15
+    assert json.dumps(i.db['inverter']) == json.dumps({"Manufacturer": 0})
+    assert json.dumps(i.db['input']) == json.dumps({"pv1": {}})
+    assert json.dumps(i.db['events']) == json.dumps({"401_": 0, "404_": 0, "405_": 0, "408_": 0, "409_No_Utility": 0, "406_": 0, "416_": 0})
 
 def test_invalid_data_type(InvalidDataSeq):
     i = InfosG3()

app/tests/test_infos_g3p.py

@@ -70,7 +70,7 @@ def test_parse_4110(DeviceData: bytes):
         pass
 
     assert json.dumps(i.db) == json.dumps({
-        'controller': {"Data_Up_Interval": 300, "Collect_Interval": 60, "Heartbeat_Interval": 120, "Signal_Strength": 100, "IP_Adress": "192.168.80.49"},
+        'controller': {"Data_Up_Interval": 300, "Collect_Interval": 1, "Heartbeat_Interval": 120, "Signal_Strength": 100, "IP_Address": "192.168.80.49"},
         'collector': {"Chip_Model": "LSW5BLE_17_02B0_1.05", "Collector_Fw_Version": "V1.1.00.0B"},
         })
 
@@ -83,7 +83,7 @@ def test_parse_4210(InverterData: bytes):
 
     assert json.dumps(i.db) == json.dumps({
          "controller": {"Power_On_Time": 2051}, 
-         "inverter": {"Serial_Number": "Y17E00000000000E", "Version": "v4.0.10", "Rated_Power": 600, "Max_Designed_Power": 2000, "No_Inputs": 4}, 
+         "inverter": {"Serial_Number": "Y17E00000000000E", "Version": "V4.0.10", "Rated_Power": 600, "Max_Designed_Power": 2000, "No_Inputs": 4}, 
          "env": {"Inverter_Status": 1, "Inverter_Temp": 14}, 
          "grid": {"Voltage": 224.8, "Current": 0.73, "Frequency": 50.05, "Output_Power": 165.8}, 
          "input": {"pv1": {"Voltage": 35.3, "Current": 1.68, "Power": 59.6, "Daily_Generation": 0.04, "Total_Generation": 30.76}, 

app/tests/test_modbus.py

@@ -0,0 +1,380 @@
+# test_with_pytest.py
+import pytest
+import asyncio
+from app.src.modbus import Modbus
+from app.src.infos import Infos, Register
+
+pytest_plugins = ('pytest_asyncio',)
+# pytestmark = pytest.mark.asyncio(scope="module")
+
+class ModbusTestHelper(Modbus):
+    def __init__(self):
+        super().__init__(self.send_cb)
+        self.db = Infos()
+        self.pdu = None
+        self.send_calls = 0
+        self.recv_responses = 0
+    def send_cb(self, pdu: bytearray, log_lvl: int, state: str):
+        self.pdu = pdu
+        self.send_calls += 1
+    def resp_handler(self):
+        self.recv_responses += 1
+
+def test_modbus_crc():
+    '''Check CRC-16 calculation'''
+    mb = Modbus(None)
+    assert 0x0b02 == mb._Modbus__calc_crc(b'\x01\x06\x20\x08\x00\x04')
+    assert 0 == mb._Modbus__calc_crc(b'\x01\x06\x20\x08\x00\x04\x02\x0b')
+    assert mb._Modbus__check_crc(b'\x01\x06\x20\x08\x00\x04\x02\x0b')
+
+    assert 0xc803 == mb._Modbus__calc_crc(b'\x01\x06\x20\x08\x00\x00')
+    assert 0 == mb._Modbus__calc_crc(b'\x01\x06\x20\x08\x00\x00\x03\xc8')
+    assert mb._Modbus__check_crc(b'\x01\x06\x20\x08\x00\x00\x03\xc8')
+
+    assert 0x5c75 == mb._Modbus__calc_crc(b'\x01\x03\x08\x01\x2c\x00\x2c\x02\x2c\x2c\x46')
+    
+def test_build_modbus_pdu():
+    '''Check building and sending a MODBUS RTU'''
+    mb = ModbusTestHelper()
+    mb.build_msg(1,6,0x2000,0x12)
+    assert mb.pdu == b'\x01\x06\x20\x00\x00\x12\x02\x07'
+    assert mb._Modbus__check_crc(mb.pdu)
+    assert mb.last_addr == 1
+    assert mb.last_fcode == 6   
+    assert mb.last_reg == 0x2000
+    assert mb.last_len == 18
+    assert mb.err == 0
+
+def test_recv_req():
+    '''Receive a valid request, which must transmitted'''
+    mb = ModbusTestHelper()
+    assert mb.recv_req(b'\x01\x06\x20\x00\x00\x12\x02\x07')
+    assert mb.last_fcode == 6
+    assert mb.last_reg == 0x2000
+    assert mb.last_len == 0x12
+    assert mb.err == 0
+
+def test_recv_req_crc_err():
+    '''Receive a request with invalid CRC, which must be dropped'''
+    mb = ModbusTestHelper()
+    assert not mb.recv_req(b'\x01\x06\x20\x00\x00\x12\x02\x08')
+    assert mb.pdu == None
+    assert mb.last_fcode == 0   
+    assert mb.last_reg == 0
+    assert mb.last_len == 0
+    assert mb.err == 1
+
+def test_recv_resp_crc_err():
+    '''Receive a response with invalid CRC, which must be dropped'''
+    mb = ModbusTestHelper()
+    # simulate a transmitted request
+    mb.req_pend = True
+    mb.last_addr = 1
+    mb.last_fcode = 3   
+    mb.last_reg == 0x300e
+    mb.last_len == 2
+    # check matching response, but with CRC error
+    call = 0
+    for key, update, val in mb.recv_resp(mb.db, b'\x01\x03\x04\x01\x2c\x00\x46\xbb\xf3', 'test'):
+        call += 1
+    assert mb.err == 1
+    assert 0 == call
+    assert mb.req_pend == True
+    # cleanup queue
+    mb._Modbus__stop_timer()
+    assert not mb.req_pend
+
+def test_recv_resp_invalid_addr():
+    '''Receive a response with wrong server addr, which must be dropped'''
+    mb = ModbusTestHelper()
+    mb.req_pend = True
+    # simulate a transmitted request
+    mb.last_addr = 1
+    mb.last_fcode = 3   
+    mb.last_reg == 0x300e
+    mb.last_len == 2
+
+    # check not matching response, with wrong server addr
+    call = 0
+    for key, update in mb.recv_resp(mb.db, b'\x02\x03\x04\x01\x2c\x00\x46\x88\xf4', 'test'):
+        call += 1
+    assert mb.err == 2
+    assert 0 == call
+    assert mb.req_pend == True
+    assert mb.que.qsize() == 0
+    
+    # cleanup queue
+    mb._Modbus__stop_timer()
+    assert not mb.req_pend
+
+def test_recv_recv_fcode():
+    '''Receive a response with wrong function code, which must be dropped'''
+    mb = ModbusTestHelper()
+    mb.build_msg(1,4,0x300e,2)
+    assert mb.que.qsize() == 0
+    assert mb.req_pend
+   
+    # check not matching response, with wrong function code
+    call = 0
+    for key, update, val in mb.recv_resp(mb.db, b'\x01\x03\x04\x01\x2c\x00\x46\xbb\xf4', 'test'):
+        call += 1
+
+    assert mb.err == 3
+    assert 0 == call
+    assert mb.req_pend == True
+    assert mb.que.qsize() == 0
+
+    # cleanup queue
+    mb._Modbus__stop_timer()
+    assert not mb.req_pend
+
+def test_recv_resp_len():
+    '''Receive a response with wrong data length, which must be dropped'''
+    mb = ModbusTestHelper()
+    mb.build_msg(1,3,0x300e,3)
+    assert mb.que.qsize() == 0
+    assert mb.req_pend
+    assert mb.last_len == 3
+
+    # check not matching response, with wrong data length
+    call = 0
+    for key, update, _ in mb.recv_resp(mb.db, b'\x01\x03\x04\x01\x2c\x00\x46\xbb\xf4', 'test'):
+        call += 1
+
+    assert mb.err == 4
+    assert 0 == call
+    assert mb.req_pend == True
+    assert mb.que.qsize() == 0
+
+    # cleanup queue
+    mb._Modbus__stop_timer()
+    assert not mb.req_pend
+
+def test_recv_unexpect_resp():
+    '''Receive a response when we havb't sent a request'''
+    mb = ModbusTestHelper()
+    assert not mb.req_pend
+   
+    # check unexpected response, which must be dropped
+    call = 0
+    for key, update, val in mb.recv_resp(mb.db, b'\x01\x03\x04\x01\x2c\x00\x46\xbb\xf4', 'test'):
+        call += 1
+
+    assert mb.err == 5
+    assert 0 == call
+    assert mb.req_pend == False
+    assert mb.que.qsize() == 0
+
+def test_parse_resp():
+    '''Receive matching response and parse the values'''
+    mb = ModbusTestHelper()
+    mb.build_msg(1,3,0x3007,6)
+    assert mb.que.qsize() == 0
+    assert mb.req_pend
+
+    call = 0
+    exp_result = ['V0.0.212', 4.4, 0.7, 0.7, 30]
+    for key, update, val in mb.recv_resp(mb.db, b'\x01\x03\x0c\x01\x2c\x00\x2c\x00\x2c\x00\x46\x00\x46\x00\x46\x32\xc8', 'test'):
+        if key == 'grid':
+            assert update == True
+        elif key == 'inverter':
+            assert update == True
+        elif key == 'env':
+            assert update == True
+        else:
+            assert False
+        assert exp_result[call] == val
+        call += 1
+    assert 0 == mb.err
+    assert 5 == call
+    assert mb.que.qsize() == 0
+    assert not mb.req_pend
+
+def test_queue():
+    mb = ModbusTestHelper()
+    mb.build_msg(1,3,0x3022,4)
+    assert mb.que.qsize() == 0
+    assert mb.req_pend
+
+    assert mb.send_calls == 1
+    assert mb.pdu == b'\x01\x030"\x00\x04\xeb\x03'
+    mb.pdu = None
+    assert mb.send_calls == 1
+    assert mb.pdu == None
+
+    assert mb.que.qsize() == 0
+
+    # cleanup queue
+    mb._Modbus__stop_timer()
+    assert not mb.req_pend
+
+def test_queue2():
+    '''Check queue handling for build_msg() calls'''
+    mb = ModbusTestHelper()
+    mb.build_msg(1,3,0x3007,6)
+    mb.build_msg(1,6,0x2008,4)
+    assert mb.que.qsize() == 1
+    assert mb.req_pend
+    mb.build_msg(1,3,0x3007,6)
+    assert mb.que.qsize() == 2
+    assert mb.req_pend
+
+    assert mb.send_calls == 1
+    assert mb.pdu == b'\x01\x030\x07\x00\x06{\t'
+    call = 0
+    exp_result = ['V0.0.212', 4.4, 0.7, 0.7, 30]
+    for key, update, val in mb.recv_resp(mb.db, b'\x01\x03\x0c\x01\x2c\x00\x2c\x00\x2c\x00\x46\x00\x46\x00\x46\x32\xc8', 'test'):
+        if key == 'grid':
+            assert update == True
+        elif key == 'inverter':
+            assert update == True
+        elif key == 'env':
+            assert update == True
+        else:
+            assert False
+        assert exp_result[call] == val
+        call += 1
+    assert 0 == mb.err
+    assert 5 == call
+
+    assert mb.que.qsize() == 1
+    assert mb.send_calls == 2
+    assert mb.pdu == b'\x01\x06\x20\x08\x00\x04\x02\x0b'
+
+    for key, update, val in mb.recv_resp(mb.db, b'\x01\x06\x20\x08\x00\x04\x02\x0b', 'test'):
+        pass
+
+    assert mb.que.qsize() == 0
+    assert mb.send_calls == 3
+    assert mb.pdu == b'\x01\x030\x07\x00\x06{\t'
+    call = 0
+    for key, update, val in mb.recv_resp(mb.db, b'\x01\x03\x0c\x01\x2c\x00\x2c\x00\x2c\x00\x46\x00\x46\x00\x46\x32\xc8', 'test'):
+        call += 1
+    assert 0 == mb.err
+    assert 5 == call
+
+    assert mb.que.qsize() == 0
+    assert not mb.req_pend
+
+def test_queue3():
+    '''Check queue handling for recv_req() calls'''
+    mb = ModbusTestHelper()
+    assert mb.recv_req(b'\x01\x03\x30\x07\x00\x06{\t', mb.resp_handler)
+    assert mb.recv_req(b'\x01\x06\x20\x08\x00\x04\x02\x0b', mb.resp_handler)
+    assert mb.que.qsize() == 1
+    assert mb.req_pend
+    assert mb.recv_req(b'\x01\x03\x30\x07\x00\x06{\t')
+    assert mb.que.qsize() == 2
+    assert mb.req_pend
+
+    assert mb.send_calls == 1
+    assert mb.pdu == b'\x01\x030\x07\x00\x06{\t'
+    assert mb.recv_responses == 0
+
+    call = 0
+    exp_result = ['V0.0.212', 4.4, 0.7, 0.7, 30]
+    for key, update, val in mb.recv_resp(mb.db, b'\x01\x03\x0c\x01\x2c\x00\x2c\x00\x2c\x00\x46\x00\x46\x00\x46\x32\xc8', 'test'):
+        if key == 'grid':
+            assert update == True
+        elif key == 'inverter':
+            assert update == True
+        elif key == 'env':
+            assert update == True
+        else:
+            assert False
+        assert exp_result[call] == val
+        call += 1
+    assert 0 == mb.err
+    assert 5 == call
+    assert mb.recv_responses == 1
+
+    assert mb.que.qsize() == 1
+    assert mb.send_calls == 2
+    assert mb.pdu == b'\x01\x06\x20\x08\x00\x04\x02\x0b'
+
+    for key, update, val in mb.recv_resp(mb.db, b'\x01\x06\x20\x08\x00\x04\x02\x0b', 'test'):
+        pass
+    assert 0 == mb.err
+    assert mb.recv_responses == 2
+
+    assert mb.que.qsize() == 0
+    assert mb.send_calls == 3
+    assert mb.pdu == b'\x01\x030\x07\x00\x06{\t'
+    call = 0
+    for key, update, val in mb.recv_resp(mb.db, b'\x01\x03\x0c\x01\x2c\x00\x2c\x00\x2c\x00\x46\x00\x46\x00\x46\x32\xc8', 'test'):
+        call += 1
+    assert 0 == mb.err
+    assert mb.recv_responses == 2
+    assert 5 == call
+
+
+    assert mb.que.qsize() == 0
+    assert not mb.req_pend
+
+@pytest.mark.asyncio
+async def test_timeout():
+    '''Test MODBUS response timeout and RTU retransmitting'''
+    assert asyncio.get_running_loop()
+    mb = ModbusTestHelper()
+    mb.max_retries = 2
+    mb.timeout = 0.1  # 100ms timeout for fast testing, expect a time resolution of at least 10ms
+    assert asyncio.get_running_loop() == mb.loop
+    mb.build_msg(1,3,0x3007,6)
+    mb.build_msg(1,6,0x2008,4)
+
+    assert mb.que.qsize() == 1
+    assert mb.req_pend
+    assert mb.retry_cnt == 0
+    assert mb.send_calls == 1
+    assert mb.pdu == b'\x01\x030\x07\x00\x06{\t'
+
+    mb.pdu = None
+    await asyncio.sleep(0.11)    # wait for first timeout and retransmittion
+    assert mb.que.qsize() == 1
+    assert mb.req_pend
+    assert mb.retry_cnt == 1
+    assert mb.send_calls == 2
+    assert mb.pdu == b'\x01\x030\x07\x00\x06{\t'
+
+    mb.pdu = None
+    await asyncio.sleep(0.11)    # wait for second timeout and retransmittion
+    assert mb.que.qsize() == 1
+    assert mb.req_pend
+    assert mb.retry_cnt == 2
+    assert mb.send_calls == 3
+    assert mb.pdu == b'\x01\x030\x07\x00\x06{\t'
+
+    mb.pdu = None
+    await asyncio.sleep(0.11)    # wait for third timeout and next pdu
+    assert mb.que.qsize() == 0
+    assert mb.req_pend
+    assert mb.retry_cnt == 0
+    assert mb.send_calls == 4
+    assert mb.pdu == b'\x01\x06\x20\x08\x00\x04\x02\x0b'
+
+    mb.max_retries = 0          # next pdu without retranmsission
+    await asyncio.sleep(0.11)    # wait for fourth timout
+    assert mb.que.qsize() == 0
+    assert not mb.req_pend
+    assert mb.retry_cnt == 0
+    assert mb.send_calls == 4
+
+    # assert mb.counter == {}
+
+def test_recv_unknown_data():
+    '''Receive a response with an unknwon register'''
+    mb = ModbusTestHelper()
+    assert 0x9000 not in mb.map
+    mb.map[0x9000] = {'reg': Register.TEST_REG1,   'fmt': '!H', 'ratio':  1}
+
+    mb.build_msg(1,3,0x9000,2)
+
+    # check matching response, but with CRC error
+    call = 0
+    for key, update, val in mb.recv_resp(mb.db, b'\x01\x03\x04\x01\x2c\x00\x46\xbb\xf4', 'test'):
+        call += 1
+    assert mb.err == 0
+    assert 0 == call
+    assert not mb.req_pend
+
+    del mb.map[0x9000]

app/tests/test_solarman.py

@@ -1,10 +1,16 @@
 import pytest
 import struct
 import time
+import logging
 from datetime import datetime
 from app.src.gen3plus.solarman_v5 import SolarmanV5
 from app.src.config import Config
 from app.src.infos import Infos, Register
+from app.src.modbus import Modbus
+from app.src.messages import State
+
+
+pytest_plugins = ('pytest_asyncio',)
 
 # initialize the proxy statistics
 Infos.static_init()
@@ -12,9 +18,31 @@ Infos.static_init()
 timestamp = int(time.time())  # 1712861197
 heartbeat = 60         
 
+class Writer():
+    def __init__(self):
+        self.sent_pdu = b''
+
+    def write(self, pdu: bytearray):
+        self.sent_pdu = pdu
+
+
+class Mqtt():
+    def __init__(self):
+        self.key = ''
+        self.data = ''
+
+    async def publish(self, key, data):
+        self.key = key
+        self.data = data
+
+
 class MemoryStream(SolarmanV5):
     def __init__(self, msg, chunks = (0,), server_side: bool = True):
         super().__init__(server_side)
+        if server_side:
+            self.mb.timeout = 1   # overwrite for faster testing
+        self.writer = Writer()
+        self.mqtt = Mqtt()
         self.__msg = msg
         self.__msg_len = len(msg)
         self.__chunks = chunks
@@ -24,18 +52,27 @@ class MemoryStream(SolarmanV5):
         self.addr = 'Test: SrvSide'
         self.db.stat['proxy']['Invalid_Msg_Format'] = 0
         self.db.stat['proxy']['AT_Command'] = 0
+        self.db.stat['proxy']['AT_Command_Blocked'] = 0
+        self.test_exception_async_write = False
+        self.entity_prfx = ''
+        self.at_acl = {'mqtt': {'allow': ['AT+'], 'block': ['AT+WEBU']}, 'tsun': {'allow': ['AT+Z', 'AT+UPURL', 'AT+SUPDATE', 'AT+TIME'], 'block': ['AT+WEBU']}}
+        self.key = ''
+        self.data = ''
 
     def _timestamp(self):
         return timestamp
     
     def _heartbeat(self) -> int:
         return heartbeat
-    
 
     def append_msg(self, msg):
         self.__msg += msg
         self.__msg_len += len(msg)    
 
+    def publish_mqtt(self, key, data):
+        self.key = key
+        self.data = data
+
     def _read(self) -> int:
         copied_bytes = 0
         try:    
@@ -54,6 +91,16 @@ class MemoryStream(SolarmanV5):
             pass     
         return copied_bytes
     
+    async def async_write(self, headline=''):
+        if self.test_exception_async_write:
+            raise RuntimeError("Peer closed.")
+
+    def createClientStream(self, msg, chunks = (0,)):
+        c = MemoryStream(msg, chunks, False)
+        self.remoteStream = c
+        c. remoteStream = self
+        return c
+
     def _SolarmanV5__flush_recv_msg(self) -> None:
         super()._SolarmanV5__flush_recv_msg()
         self.msg_count += 1
@@ -63,6 +110,9 @@ class MemoryStream(SolarmanV5):
 def get_sn() -> bytes:
     return b'\x21\x43\x65\x7b'
 
+def get_sn_int() -> int:
+    return 2070233889
+
 def get_inv_no() -> bytes:
     return b'T170000000000001'
 
@@ -308,6 +358,72 @@ def InverterIndMsg2000():  # 0x4210 rated Power 2000W
     msg += b'\x15'
     return msg
 
+@pytest.fixture
+def InverterIndMsg800():  # 0x4210 rated Power 800W 
+    msg  = b'\xa5\x99\x01\x10\x42\xe6\x9e' +get_sn()  +b'\x01\xb0\x02\xbc\xc8'
+    msg += b'\x24\x32\x6c\x1f\x00\x00\xa0\x47\xe4\x33\x01\x00\x03\x08\x00\x00'
+    msg += b'\x59\x31\x37\x45\x37\x41\x30\x46\x30\x31\x30\x42\x30\x31\x33\x45'
+    msg += b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
+    msg += b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
+    msg += b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
+    msg += b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
+    msg += b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
+    msg += b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
+    msg += b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
+    msg += b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
+    msg += b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
+    msg += b'\x00\x01\x00\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
+    msg +=  b'\x40\x10\x08\xc8\x00\x49\x13\x8d\x00\x36\x00\x00\x03\x20\x06\x7a'
+    msg += b'\x01\x61\x00\xa8\x02\x54\x01\x5a\x00\x8a\x01\xe4\x01\x5a\x00\xbd'
+    msg += b'\x02\x8f\x00\x11\x00\x01\x00\x00\x00\x0b\x00\x00\x27\x98\x00\x04'
+    msg += b'\x00\x00\x0c\x04\x00\x03\x00\x00\x0a\xe7\x00\x05\x00\x00\x0c\x75'
+    msg += b'\x00\x00\x00\x00\x06\x16\x02\x00\x00\x00\x55\xaa\x00\x01\x00\x00'
+    msg += b'\x00\x00\x00\x00\xff\xff\x03\x20\x00\x03\x04\x00\x04\x00\x04\x00'
+    msg += b'\x04\x00\x00\x01\xff\xff\x00\x01\x00\x06\x00\x68\x00\x68\x05\x00'
+    msg += b'\x09\xcd\x07\xb6\x13\x9c\x13\x24\x00\x01\x07\xae\x04\x0f\x00\x41'
+    msg += b'\x00\x0f\x0a\x64\x0a\x64\x00\x06\x00\x06\x09\xf6\x12\x8c\x12\x8c'
+    msg += b'\x00\x10\x00\x10\x14\x52\x14\x52\x00\x10\x00\x10\x01\x51\x00\x05'
+    msg += b'\x04\x00\x00\x01\x13\x9c\x0f\xa0\x00\x4e\x00\x66\x03\xe8\x04\x00'
+    msg += b'\x09\xce\x07\xa8\x13\x9c\x13\x26\x00\x00\x00\x00\x00\x00\x00\x00'
+    msg += b'\x00\x00\x00\x00\x04\x00\x04\x00\x00\x00\x00\x00\xff\xff\x00\x00'
+    msg += b'\x00\x00\x00\x00'
+    msg += correct_checksum(msg)
+    msg += b'\x15'
+    return msg
+
+@pytest.fixture
+def InverterIndMsg_81():  # 0x4210 fcode 0x81
+    msg  = b'\xa5\x99\x01\x10\x42\x02\x03' +get_sn()  +b'\x81\xb0\x02\xbc\xc8'
+    msg += b'\x24\x32\x6c\x1f\x00\x00\xa0\x07\x04\x03\x01\x00\x03\x08\x00\x00'
+    msg += b'\x59\x31\x37\x45\x37\x41\x30\x46\x30\x31\x30\x42\x30\x31\x33\x45'
+    msg += b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
+    msg += b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
+    msg += b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
+    msg += b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
+    msg += b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
+    msg += b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
+    msg += b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
+    msg += b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
+    msg += b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
+    msg += b'\x00\x01\x00\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
+    msg += b'\x40\x10\x08\xc8\x00\x49\x13\x8d\x00\x36\x00\x00\x02\x58\x06\x7a'
+    msg += b'\x01\x61\x00\xa8\x02\x54\x01\x5a\x00\x8a\x01\xe4\x01\x5a\x00\xbd'
+    msg += b'\x02\x8f\x00\x11\x00\x01\x00\x00\x00\x0b\x00\x00\x27\x98\x00\x04'
+    msg += b'\x00\x00\x0c\x04\x00\x03\x00\x00\x0a\xe7\x00\x05\x00\x00\x0c\x75'
+    msg += b'\x00\x00\x00\x00\x06\x16\x02\x00\x00\x00\x55\xaa\x00\x01\x00\x00'
+    msg += b'\x00\x00\x00\x00\xff\xff\x07\xd0\x00\x03\x04\x00\x04\x00\x04\x00'
+    msg += b'\x04\x00\x00\x01\xff\xff\x00\x01\x00\x06\x00\x68\x00\x68\x05\x00'
+    msg += b'\x09\xcd\x07\xb6\x13\x9c\x13\x24\x00\x01\x07\xae\x04\x0f\x00\x41'
+    msg += b'\x00\x0f\x0a\x64\x0a\x64\x00\x06\x00\x06\x09\xf6\x12\x8c\x12\x8c'
+    msg += b'\x00\x10\x00\x10\x14\x52\x14\x52\x00\x10\x00\x10\x01\x51\x00\x05'
+    msg += b'\x04\x00\x00\x01\x13\x9c\x0f\xa0\x00\x4e\x00\x66\x03\xe8\x04\x00'
+    msg += b'\x09\xce\x07\xa8\x13\x9c\x13\x26\x00\x00\x00\x00\x00\x00\x00\x00'
+    msg += b'\x00\x00\x00\x00\x04\x00\x04\x00\x00\x00\x00\x00\xff\xff\x00\x00'
+    msg += b'\x00\x00\x00\x00'
+    msg += correct_checksum(msg)
+    msg += b'\x15'
+    return msg
+
 @pytest.fixture
 def InverterRspMsg():  # 0x1210
     msg  = b'\xa5\x0a\x00\x10\x12\x02\02' +get_sn()  +b'\x01\x01'
@@ -317,6 +433,15 @@ def InverterRspMsg():  # 0x1210
     msg += b'\x15'
     return msg
 
+@pytest.fixture
+def InverterRspMsg_81():  # 0x1210 fcode 0x81
+    msg  = b'\xa5\x0a\x00\x10\x12\x03\03' +get_sn()  +b'\x81\x01'
+    msg += total()  
+    msg += hb()
+    msg += correct_checksum(msg)
+    msg += b'\x15'
+    return msg
+
 @pytest.fixture
 def UnknownMsg():  # 0x5110
     msg  = b'\xa5\x0a\x00\x10\x51\x10\x84' +get_sn()  +b'\x01\x01\x69\x6f\x09'
@@ -346,7 +471,7 @@ def SyncStartRspMsg():  # 0x1310
 
 @pytest.fixture
 def SyncStartFwdMsg():  # 0x4310
-    msg  = b'\xa5\x2f\x00\x10\x43\x0e\x0d' +get_sn()  +b'\x81\x7a\x0b\x2e\x32'
+    msg  = b'\xa5\x2f\x00\x10\x43\x0d\x0e' +get_sn()  +b'\x81\x7a\x0b\x2e\x32'
     msg += b'\x39\x00\x00\x00\x00\x00\x00\x00\x0c\x00\x41\x6c\x6c\x69\x75\x73'
     msg += b'\x2d\x48\x6f\x6d\x65\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
     msg += b'\x00\x00\x00\x00\x00\x00\x00\x00\x61\x01'
@@ -357,18 +482,28 @@ def SyncStartFwdMsg():  # 0x4310
 
 @pytest.fixture
 def AtCommandIndMsg():  # 0x4510
-    msg  = b'\xa5\x27\x00\x10\x45\x02\x01' +get_sn() +b'\x01\x02\x00'
+    msg  = b'\xa5\x27\x00\x10\x45\x03\x02' +get_sn() +b'\x01\x02\x00'
     msg += b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'           
     msg += b'AT+TIME=214028,1,60,120\r'
     msg += correct_checksum(msg)
     msg += b'\x15'
     return msg
 
+@pytest.fixture
+def AtCommandIndMsgBlock():  # 0x4510
+    msg  = b'\xa5\x17\x00\x10\x45\x03\x02' +get_sn() +b'\x01\x02\x00'
+    msg += b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'           
+    msg += b'AT+WEBU\r'
+    msg += correct_checksum(msg)
+    msg += b'\x15'
+    return msg
+
 @pytest.fixture
 def AtCommandRspMsg():  # 0x1510
-    msg  = b'\xa5\x0a\x00\x10\x15\x02\x02' +get_sn()  +b'\x01\x01'
+    msg  = b'\xa5\x11\x00\x10\x15\x03\x03' +get_sn()  +b'\x01\x01'
     msg += total()  
     msg += hb()
+    msg += b'\x00\x00\x00\x00+ok'
     msg += correct_checksum(msg)
     msg += b'\x15'
     return msg
@@ -410,6 +545,81 @@ def SyncEndRspMsg():  # 0x1810
     msg += b'\x15'
     return msg
 
+@pytest.fixture
+def MsgModbusCmd():
+    msg  = b'\xa5\x17\x00\x10\x45\x03\x02' +get_sn()  +b'\x02\xb0\x02'
+    msg += b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x06\x20\x08'
+    msg += b'\x00\x00\x03\xc8'
+    msg += correct_checksum(msg)
+    msg += b'\x15'
+    return msg
+
+@pytest.fixture
+def MsgModbusCmdFwd():
+    msg  = b'\xa5\x17\x00\x10\x45\x01\x00' +get_sn()  +b'\x02\xb0\x02'
+    msg += b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x06\x20\x08'
+    msg += b'\x00\x00\x03\xc8'
+    msg += correct_checksum(msg)
+    msg += b'\x15'
+    return msg
+
+@pytest.fixture
+def MsgModbusCmdCrcErr():
+    msg  = b'\xa5\x17\x00\x10\x45\x03\x02' +get_sn()  +b'\x02\xb0\x02'
+    msg += b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x06\x20\x08'
+    msg += b'\x00\x00\x04\xc8'
+    msg += correct_checksum(msg)
+    msg += b'\x15'
+    return msg
+
+@pytest.fixture
+def MsgModbusRsp():  # 0x1510
+    msg  = b'\xa5\x3b\x00\x10\x15\x03\x03' +get_sn()  +b'\x02\x01'
+    msg += total()  
+    msg += hb()
+    msg += b'\x0a\xe2\xfa\x33\x01\x03\x28\x40\x10\x08\xd8'
+    msg += b'\x00\x00\x13\x87\x00\x31\x00\x68\x02\x58\x00\x00\x01\x53\x00\x02'
+    msg += b'\x00\x00\x01\x52\x00\x02\x00\x00\x01\x53\x00\x03\x00\x00\x00\x04'
+    msg += b'\x00\x01\x00\x00\x6c\x68'
+    msg += correct_checksum(msg)
+    msg += b'\x15'
+    return msg
+
+@pytest.fixture
+def MsgModbusInvalid():  # 0x1510
+    msg  = b'\xa5\x3b\x00\x10\x15\x03\x03' +get_sn()  +b'\x02\x00'
+    msg += total()  
+    msg += hb()
+    msg += b'\x0a\xe2\xfa\x33\x01\x03\x28\x40\x10\x08\xd8'
+    msg += b'\x00\x00\x13\x87\x00\x31\x00\x68\x02\x58\x00\x00\x01\x53\x00\x02'
+    msg += b'\x00\x00\x01\x52\x00\x02\x00\x00\x01\x53\x00\x03\x00\x00\x00\x04'
+    msg += b'\x00\x01\x00\x00\x6c\x68'
+    msg += correct_checksum(msg)
+    msg += b'\x15'
+    return msg
+
+@pytest.fixture
+def MsgUnknownCmd():
+    msg  = b'\xa5\x17\x00\x10\x45\x03\x02' +get_sn()  +b'\x03\xb0\x02'
+    msg += b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x06\x20\x08'
+    msg += b'\x00\x00\x03\xc8'
+    msg += correct_checksum(msg)
+    msg += b'\x15'
+    return msg
+
+@pytest.fixture
+def MsgUnknownCmdRsp():  # 0x1510
+    msg  = b'\xa5\x3b\x00\x10\x15\x03\x03' +get_sn()  +b'\x03\x01'
+    msg += total()  
+    msg += hb()
+    msg += b'\x0a\xe2\xfa\x33\x01\x03\x28\x40\x10\x08\xd8'
+    msg += b'\x00\x00\x13\x87\x00\x31\x00\x68\x02\x58\x00\x00\x01\x53\x00\x02'
+    msg += b'\x00\x00\x01\x52\x00\x02\x00\x00\x01\x53\x00\x03\x00\x00\x00\x04'
+    msg += b'\x00\x01\x00\x00\x6c\x68'
+    msg += correct_checksum(msg)
+    msg += b'\x15'
+    return msg
+
 @pytest.fixture
 def ConfigTsunAllowAll():
     Config.config = {'solarman':{'enabled': True}, 'inverters':{'allow_all':True}}
@@ -642,8 +852,7 @@ def test_read_message_in_chunks2(ConfigTsunInv1, DeviceIndMsg):
     assert m.data_len == 0xd4
     assert m.msg_count == 1
     assert m.db.stat['proxy']['Invalid_Msg_Format'] == 0
-    while m.read(): # read rest of message
+    m.read()        # read rest of message
-        pass
     assert m.msg_count == 1
     assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
     assert m.db.stat['proxy']['Invalid_Msg_Format'] == 0
@@ -693,6 +902,52 @@ def test_read_two_messages(ConfigTsunAllowAll, DeviceIndMsg, DeviceRspMsg, Inver
     assert m._send_buffer==b''
     m.close()
 
+def test_read_two_messages2(ConfigTsunAllowAll, InverterIndMsg, InverterIndMsg_81, InverterRspMsg, InverterRspMsg_81):
+    ConfigTsunAllowAll
+    m = MemoryStream(InverterIndMsg, (0,))
+    m.append_msg(InverterIndMsg_81)
+    m.read()         # read complete msg, and dispatch msg
+    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
+    assert m.msg_count == 1
+    assert m.header_len==11
+    assert m.snr == 2070233889
+    assert m.unique_id == '2070233889'
+    assert m.control == 0x4210
+    assert m.time_ofs == 0x33e447a0
+    assert str(m.seq) == '02:02'
+    assert m.data_len == 0x199
+    assert m.msg_count == 1
+    assert m.db.stat['proxy']['Invalid_Msg_Format'] == 0
+    assert m._forward_buffer==InverterIndMsg
+    assert m._send_buffer==InverterRspMsg
+ 
+    m._send_buffer = bytearray(0) # clear send buffer for next test  
+    m._init_new_client_conn()
+    assert m._send_buffer==b''
+    assert m._recv_buffer==InverterIndMsg_81
+    
+    m._send_buffer = bytearray(0) # clear send buffer for next test
+    m._forward_buffer = bytearray(0) # clear forward buffer for next test
+    m.read()         # read complete msg, and dispatch msg
+    assert m.db.stat['proxy']['Invalid_Msg_Format'] == 0
+    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
+    assert m.msg_count == 2
+    assert m.header_len==11
+    assert m.snr == 2070233889
+    assert m.unique_id == '2070233889'
+    assert m.control == 0x4210
+    assert m.time_ofs == 0x33e447a0
+    assert str(m.seq) == '03:03'
+    assert m.data_len == 0x199
+    assert m.db.stat['proxy']['Invalid_Msg_Format'] == 0
+    assert m._forward_buffer==InverterIndMsg_81
+    assert m._send_buffer==InverterRspMsg_81
+
+    m._send_buffer = bytearray(0) # clear send buffer for next test    
+    m._init_new_client_conn()
+    assert m._send_buffer==b''
+    m.close()
+
 def test_unkown_message(ConfigTsunInv1, UnknownMsg):
     ConfigTsunInv1
     m = MemoryStream(UnknownMsg, (0,))
@@ -725,7 +980,7 @@ def test_device_rsp(ConfigTsunInv1, DeviceRspMsg):
     assert m.data_len == 0x0a
     assert m._recv_buffer==b''
     assert m._send_buffer==b''
-    assert m._forward_buffer==b''  # DeviceRspMsg
+    assert m._forward_buffer==b''
     assert m.db.stat['proxy']['Invalid_Msg_Format'] == 0
     m.close()
 
@@ -743,7 +998,7 @@ def test_inverter_rsp(ConfigTsunInv1, InverterRspMsg):
     assert m.data_len == 0x0a
     assert m._recv_buffer==b''
     assert m._send_buffer==b''
-    assert m._forward_buffer==b''  # InverterRspMsg
+    assert m._forward_buffer==b''
     assert m.db.stat['proxy']['Invalid_Msg_Format'] == 0
     m.close()
 
@@ -779,7 +1034,7 @@ def test_heartbeat_rsp(ConfigTsunInv1, HeartbeatRspMsg):
     assert m.data_len == 0x0a
     assert m._recv_buffer==b''
     assert m._send_buffer==b''
-    assert m._forward_buffer==b''  # HeartbeatRspMsg
+    assert m._forward_buffer==b''
     assert m.db.stat['proxy']['Invalid_Msg_Format'] == 0
     m.close()
 
@@ -800,6 +1055,7 @@ def test_sync_start_ind(ConfigTsunInv1, SyncStartIndMsg, SyncStartRspMsg, SyncSt
     assert m._forward_buffer==SyncStartIndMsg
     assert m.db.stat['proxy']['Invalid_Msg_Format'] == 0
 
+    m.seq.server_side = False  # simulate forawding to TSUN cloud
     m._update_header(m._forward_buffer)
     assert str(m.seq) == '0d:0e'  # value after forwarding indication
     assert m._forward_buffer==SyncStartFwdMsg
@@ -820,7 +1076,7 @@ def test_sync_start_rsp(ConfigTsunInv1, SyncStartRspMsg):
     assert m.data_len == 0x0a
     assert m._recv_buffer==b''
     assert m._send_buffer==b''
-    assert m._forward_buffer==b''  # HeartbeatRspMsg
+    assert m._forward_buffer==b''
     assert m.db.stat['proxy']['Invalid_Msg_Format'] == 0
     m.close()
 
@@ -856,29 +1112,10 @@ def test_sync_end_rsp(ConfigTsunInv1, SyncEndRspMsg):
     assert m.data_len == 0x0a
     assert m._recv_buffer==b''
     assert m._send_buffer==b''
-    assert m._forward_buffer==b''  # HeartbeatRspMsg
+    assert m._forward_buffer==b''
     assert m.db.stat['proxy']['Invalid_Msg_Format'] == 0
     m.close()
 
-def test_at_command_ind(ConfigTsunInv1, AtCommandIndMsg, AtCommandRspMsg):
-    ConfigTsunInv1
-    m = MemoryStream(AtCommandIndMsg, (0,), False)
-    m.read()         # read complete msg, and dispatch msg
-    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
-    assert m.msg_count == 1
-    assert m.header_len==11
-    assert m.snr == 2070233889
-    # assert m.unique_id == '2070233889'
-    assert m.control == 0x4510
-    assert str(m.seq) == '02:02'
-    assert m.data_len == 39
-    assert m._recv_buffer==b''
-    assert m._send_buffer==AtCommandRspMsg
-    assert m._forward_buffer==AtCommandIndMsg
-    assert m.db.stat['proxy']['Invalid_Msg_Format'] == 0
-    assert m.db.stat['proxy']['AT_Command'] == 1
-    m.close()
-
 def test_build_modell_600(ConfigTsunAllowAll, InverterIndMsg):
     ConfigTsunAllowAll
     m = MemoryStream(InverterIndMsg, (0,))
@@ -931,6 +1168,18 @@ def test_build_modell_2000(ConfigTsunAllowAll, InverterIndMsg2000):
     assert 'TSOL-MS2000' == m.db.get_db_value(Register.EQUIPMENT_MODEL, 0)
     m.close()
 
+def test_build_modell_800(ConfigTsunAllowAll, InverterIndMsg800):
+    ConfigTsunAllowAll
+    m = MemoryStream(InverterIndMsg800, (0,))
+    assert 0 == m.db.get_db_value(Register.MAX_DESIGNED_POWER, 0)
+    assert None == m.db.get_db_value(Register.RATED_POWER, None)
+    assert None == m.db.get_db_value(Register.INVERTER_TEMP, None)
+    m.read()         # read complete msg, and dispatch msg
+    assert 800 == m.db.get_db_value(Register.MAX_DESIGNED_POWER, 0)
+    assert 800 == m.db.get_db_value(Register.RATED_POWER, 0)
+    assert 'TSOL-MSxx00' == m.db.get_db_value(Register.EQUIPMENT_MODEL, 0)
+    m.close()
+
 def test_build_logger_modell(ConfigTsunAllowAll, DeviceIndMsg):
     ConfigTsunAllowAll
     m = MemoryStream(DeviceIndMsg, (0,))
@@ -942,21 +1191,531 @@ def test_build_logger_modell(ConfigTsunAllowAll, DeviceIndMsg):
     assert 'V1.1.00.0B' == m.db.get_db_value(Register.COLLECTOR_FW_VERSION, 0).rstrip('\00')
     m.close()
 
-def test_AT_cmd(ConfigTsunAllowAll, DeviceIndMsg, DeviceRspMsg, AtCommandIndMsg):
+def test_msg_iterator():
-    ConfigTsunAllowAll
+    m1 = SolarmanV5(server_side=True)
+    m2 = SolarmanV5(server_side=True)
+    m3 = SolarmanV5(server_side=True)
+    m3.close()
+    del m3
+    test1 = 0
+    test2 = 0
+    for key in SolarmanV5:
+        if key == m1:
+            test1+=1
+        elif key == m2:
+            test2+=1
+        elif type(key) != SolarmanV5:
+            continue
+        else:
+            assert False
+    assert test1 == 1
+    assert test2 == 1
+
+def test_proxy_counter():
+    m = SolarmanV5(server_side=True)
+    assert m.new_data == {}
+    m.db.stat['proxy']['Unknown_Msg'] = 0
+    Infos.new_stat_data['proxy'] =  False
+
+    m.inc_counter('Unknown_Msg')
+    assert m.new_data == {}
+    assert Infos.new_stat_data == {'proxy': True}
+    assert 1 == m.db.stat['proxy']['Unknown_Msg']
+
+    Infos.new_stat_data['proxy'] =  False
+    m.dec_counter('Unknown_Msg')
+    assert m.new_data == {}
+    assert Infos.new_stat_data == {'proxy': True}
+    assert 0 == m.db.stat['proxy']['Unknown_Msg']
+    m.close()
+
+@pytest.mark.asyncio
+async def test_msg_build_modbus_req(ConfigTsunInv1, DeviceIndMsg, DeviceRspMsg, InverterIndMsg, InverterRspMsg, MsgModbusCmd):
+    ConfigTsunInv1
     m = MemoryStream(DeviceIndMsg, (0,), True)
+    m.append_msg(InverterIndMsg)
     m.read()
     assert m.control == 0x4110
     assert str(m.seq) == '01:01'
-    assert m._recv_buffer==b''
+    assert m._recv_buffer==InverterIndMsg   # unhandled next message
     assert m._send_buffer==DeviceRspMsg
     assert m._forward_buffer==DeviceIndMsg
+
+    m._send_buffer = bytearray(0) # clear send buffer for next test    
+    m._forward_buffer = bytearray(0) # clear send buffer for next test    
+    await m.send_modbus_cmd(Modbus.WRITE_SINGLE_REG, 0x2008, 0, logging.DEBUG)
+    assert m._recv_buffer==InverterIndMsg   # unhandled next message
+    assert 0 == m.send_msg_ofs
+    assert m._forward_buffer == b''
+    assert m.writer.sent_pdu == b'' # modbus command must be ignore, cause connection is still not up
+    assert m._send_buffer == b''    # modbus command must be ignore, cause connection is still not up
+
+    m.read()
+    assert m.control == 0x4210
+    assert str(m.seq) == '02:02'
+    assert m._recv_buffer==b''
+    assert m._send_buffer==InverterRspMsg
+    assert m._forward_buffer==InverterIndMsg
+
+    m._send_buffer = bytearray(0) # clear send buffer for next test    
+    m._forward_buffer = bytearray(0) # clear send buffer for next test    
+    await m.send_modbus_cmd(Modbus.WRITE_SINGLE_REG, 0x2008, 0, logging.DEBUG)
+    assert 0 == m.send_msg_ofs
+    assert m._forward_buffer == b''
+    assert m.writer.sent_pdu == MsgModbusCmd
+    assert m._send_buffer == b''
+
+    m._send_buffer = bytearray(0) # clear send buffer for next test    
+    m.test_exception_async_write = True
+    await m.send_modbus_cmd(Modbus.WRITE_SINGLE_REG, 0x2008, 0, logging.DEBUG)
+    assert 0 == m.send_msg_ofs
+    assert m._forward_buffer == b''
+    assert m._send_buffer == b''
+    m.close()
+
+@pytest.mark.asyncio
+async def test_AT_cmd(ConfigTsunAllowAll, DeviceIndMsg, DeviceRspMsg, InverterIndMsg, InverterRspMsg, AtCommandIndMsg, AtCommandRspMsg):
+    ConfigTsunAllowAll
+    m = MemoryStream(DeviceIndMsg, (0,), True)
+    m.append_msg(InverterIndMsg)
+    m.append_msg(AtCommandRspMsg)
+    m.read()   # read device ind
+    assert m.control == 0x4110
+    assert str(m.seq) == '01:01'
+    assert m._recv_buffer==InverterIndMsg + AtCommandRspMsg  # unhandled next message
+    assert m._send_buffer==DeviceRspMsg
+    assert m._forward_buffer==DeviceIndMsg
+
+    m._send_buffer = bytearray(0) # clear send buffer for next test    
+    m._forward_buffer = bytearray(0) # clear send buffer for next test    
+    await m.send_at_cmd('AT+TIME=214028,1,60,120')
+    assert m._recv_buffer==InverterIndMsg + AtCommandRspMsg     # unhandled next message
+    assert m._send_buffer==b''
+    assert m._forward_buffer==b''
+    assert str(m.seq) == '01:01'
+    assert m.mqtt.key == ''
+    assert m.mqtt.data == ""
+
+    m.read() # read inverter ind
+    assert m.control == 0x4210
+    assert str(m.seq) == '02:02'
+    assert m._recv_buffer==AtCommandRspMsg   # unhandled next message
+    assert m._send_buffer==InverterRspMsg
+    assert m._forward_buffer==InverterIndMsg
     
     m._send_buffer = bytearray(0) # clear send buffer for next test    
     m._forward_buffer = bytearray(0) # clear send buffer for next test    
-    m.send_at_cmd('AT+TIME=214028,1,60,120')
+    await m.send_at_cmd('AT+TIME=214028,1,60,120')
-    assert m._recv_buffer==b''
+    assert m._recv_buffer==AtCommandRspMsg   # unhandled next message
     assert m._send_buffer==AtCommandIndMsg
     assert m._forward_buffer==b''
-    assert str(m.seq) == '01:02'
+    assert str(m.seq) == '02:03'
+    assert m.mqtt.key == ''
+    assert m.mqtt.data == ""
+
+    m._send_buffer = bytearray(0) # clear send buffer for next test    
+    m.read() # read at resp
+    assert m.control == 0x1510
+    assert str(m.seq) == '03:03'
+    assert m._recv_buffer==b''
+    assert m._send_buffer==b''
+    assert m._forward_buffer==b''
+    assert m.key == 'at_resp'
+    assert m.data == "+ok"
+
+    m.test_exception_async_write = True
+    await m.send_at_cmd('AT+TIME=214028,1,60,120')
+    assert m._recv_buffer==b''
+    assert m._send_buffer==b''
+    assert m._forward_buffer==b''
+    assert str(m.seq) == '03:04'
+    assert m.forward_at_cmd_resp == False
+    assert m.mqtt.key == ''
+    assert m.mqtt.data == ""
     m.close()
+
+@pytest.mark.asyncio
+async def test_AT_cmd_blocked(ConfigTsunAllowAll, DeviceIndMsg, DeviceRspMsg, InverterIndMsg, InverterRspMsg, AtCommandIndMsg):
+    ConfigTsunAllowAll
+    m = MemoryStream(DeviceIndMsg, (0,), True)
+    m.append_msg(InverterIndMsg)
+    m.read()
+    assert m.control == 0x4110
+    assert str(m.seq) == '01:01'
+    assert m._recv_buffer==InverterIndMsg   # unhandled next message
+    assert m._send_buffer==DeviceRspMsg
+    assert m._forward_buffer==DeviceIndMsg
+
+    m._send_buffer = bytearray(0) # clear send buffer for next test    
+    m._forward_buffer = bytearray(0) # clear send buffer for next test    
+    await m.send_at_cmd('AT+WEBU')
+    assert m._recv_buffer==InverterIndMsg   # unhandled next message
+    assert m._send_buffer==b''
+    assert m._forward_buffer==b''
+    assert str(m.seq) == '01:01'
+    assert m.mqtt.key == ''
+    assert m.mqtt.data == ""
+
+    m.read()
+    assert m.control == 0x4210
+    assert str(m.seq) == '02:02'
+    assert m._recv_buffer==b''
+    assert m._send_buffer==InverterRspMsg
+    assert m._forward_buffer==InverterIndMsg
+    
+    m._send_buffer = bytearray(0) # clear send buffer for next test    
+    m._forward_buffer = bytearray(0) # clear send buffer for next test    
+    await m.send_at_cmd('AT+WEBU')
+    assert m._recv_buffer==b''
+    assert m._send_buffer==b''
+    assert m._forward_buffer==b''
+    assert str(m.seq) == '02:02'
+    assert m.forward_at_cmd_resp == False
+    assert m.mqtt.key == 'at_resp'
+    assert m.mqtt.data == "'AT+WEBU' is forbidden"
+    m.close()
+
+def test_AT_cmd_ind(ConfigTsunInv1, AtCommandIndMsg):
+    ConfigTsunInv1
+    m = MemoryStream(AtCommandIndMsg, (0,), False)
+    m.db.stat['proxy']['Unknown_Ctrl'] = 0
+    m.db.stat['proxy']['AT_Command'] = 0
+    m.db.stat['proxy']['AT_Command_Blocked'] = 0
+    m.db.stat['proxy']['Modbus_Command'] = 0
+    m.read()         # read complete msg, and dispatch msg
+    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
+    assert m.msg_count == 1
+    assert m.header_len==11
+    assert m.snr == 2070233889
+    # assert m.unique_id == '2070233889'
+    assert m.control == 0x4510
+    assert str(m.seq) == '03:02'
+    assert m.data_len == 39
+    assert m._recv_buffer==b''
+    assert m._send_buffer==b''
+    assert m._forward_buffer==AtCommandIndMsg
+    assert m.db.stat['proxy']['Invalid_Msg_Format'] == 0
+    assert m.db.stat['proxy']['AT_Command'] == 1
+    assert m.db.stat['proxy']['AT_Command_Blocked'] == 0
+    assert m.db.stat['proxy']['Modbus_Command'] == 0
+    m.close()
+
+def test_AT_cmd_ind_block(ConfigTsunInv1, AtCommandIndMsgBlock):
+    ConfigTsunInv1
+    m = MemoryStream(AtCommandIndMsgBlock, (0,), False)
+    m.db.stat['proxy']['Unknown_Ctrl'] = 0
+    m.db.stat['proxy']['AT_Command'] = 0
+    m.db.stat['proxy']['AT_Command_Blocked'] = 0
+    m.db.stat['proxy']['Modbus_Command'] = 0
+    m.read()         # read complete msg, and dispatch msg
+    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
+    assert m.msg_count == 1
+    assert m.header_len==11
+    assert m.snr == 2070233889
+    # assert m.unique_id == '2070233889'
+    assert m.control == 0x4510
+    assert str(m.seq) == '03:02'
+    assert m.data_len == 23
+    assert m._recv_buffer==b''
+    assert m._send_buffer==b''
+    assert m._forward_buffer==b''
+    assert m.db.stat['proxy']['Invalid_Msg_Format'] == 0
+    assert m.db.stat['proxy']['AT_Command'] == 0
+    assert m.db.stat['proxy']['AT_Command_Blocked'] == 1
+    assert m.db.stat['proxy']['Modbus_Command'] == 0
+    m.close()
+
+def test_msg_at_command_rsp1(ConfigTsunInv1, AtCommandRspMsg):
+    ConfigTsunInv1
+    m = MemoryStream(AtCommandRspMsg)
+    m.db.stat['proxy']['Unknown_Ctrl'] = 0
+    m.db.stat['proxy']['Modbus_Command'] = 0
+    m.forward_at_cmd_resp = True
+    m.read()         # read complete msg, and dispatch msg
+    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
+    assert m.msg_count == 1
+    assert m.control == 0x1510
+    assert str(m.seq) == '03:03'
+    assert m.header_len==11
+    assert m.data_len==17
+    assert m._forward_buffer==AtCommandRspMsg
+    assert m._send_buffer==b''
+    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
+    assert m.db.stat['proxy']['Modbus_Command'] == 0
+    m.close()
+
+def test_msg_at_command_rsp2(ConfigTsunInv1, AtCommandRspMsg):
+    ConfigTsunInv1
+    m = MemoryStream(AtCommandRspMsg)
+    m.db.stat['proxy']['Unknown_Ctrl'] = 0
+    m.db.stat['proxy']['Modbus_Command'] = 0
+    m.forward_at_cmd_resp = False
+    m.read()         # read complete msg, and dispatch msg
+    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
+    assert m.msg_count == 1
+    assert m.control == 0x1510
+    assert str(m.seq) == '03:03'
+    assert m.header_len==11
+    assert m.data_len==17
+    assert m._forward_buffer==b''
+    assert m._send_buffer==b''
+    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
+    assert m.db.stat['proxy']['Modbus_Command'] == 0
+    m.close()
+
+def test_msg_modbus_req(ConfigTsunInv1, MsgModbusCmd, MsgModbusCmdFwd):
+    ConfigTsunInv1
+    m = MemoryStream(b'')
+    m.snr = get_sn_int()
+    m.state = State.up
+    c = m.createClientStream(MsgModbusCmd)
+
+    m.db.stat['proxy']['Unknown_Ctrl'] = 0
+    m.db.stat['proxy']['AT_Command'] = 0
+    m.db.stat['proxy']['Modbus_Command'] = 0
+    m.db.stat['proxy']['Invalid_Msg_Format'] = 0
+    c.read()         # read complete msg, and dispatch msg
+    assert not c.header_valid  # must be invalid, since msg was handled and buffer flushed
+    assert c.msg_count == 1
+    assert c.control == 0x4510
+    assert str(c.seq) == '03:02'
+    assert c.header_len==11
+    assert c.data_len==23
+    assert c._forward_buffer==b''
+    assert c._send_buffer==b''
+    assert m.writer.sent_pdu == MsgModbusCmdFwd
+    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
+    assert m.db.stat['proxy']['AT_Command'] == 0
+    assert m.db.stat['proxy']['Modbus_Command'] == 1
+    assert m.db.stat['proxy']['Invalid_Msg_Format'] == 0
+    m.close()
+
+def test_msg_modbus_req2(ConfigTsunInv1, MsgModbusCmdCrcErr):
+    ConfigTsunInv1
+    m = MemoryStream(b'')
+    m.snr = get_sn_int()
+    m.state = State.up
+    c = m.createClientStream(MsgModbusCmdCrcErr)
+
+    m.db.stat['proxy']['Unknown_Ctrl'] = 0
+    m.db.stat['proxy']['AT_Command'] = 0
+    m.db.stat['proxy']['Modbus_Command'] = 0
+    m.db.stat['proxy']['Invalid_Msg_Format'] = 0
+    c.read()         # read complete msg, and dispatch msg
+    assert not c.header_valid  # must be invalid, since msg was handled and buffer flushed
+    assert c.msg_count == 1
+    assert c.control == 0x4510
+    assert str(c.seq) == '03:02'
+    assert c.header_len==11
+    assert c.data_len==23
+    assert c._forward_buffer==b''
+    assert c._send_buffer==b''
+    assert m.writer.sent_pdu==b''
+    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
+    assert m.db.stat['proxy']['AT_Command'] == 0
+    assert m.db.stat['proxy']['Modbus_Command'] == 0
+    assert m.db.stat['proxy']['Invalid_Msg_Format'] == 1
+    m.close()
+
+def test_msg_unknown_cmd_req(ConfigTsunInv1, MsgUnknownCmd):
+    ConfigTsunInv1
+    m = MemoryStream(MsgUnknownCmd, (0,), False)
+    m.db.stat['proxy']['Unknown_Ctrl'] = 0
+    m.db.stat['proxy']['AT_Command'] = 0
+    m.db.stat['proxy']['Modbus_Command'] = 0
+    m.db.stat['proxy']['Invalid_Msg_Format'] = 0
+    m.read()         # read complete msg, and dispatch msg
+    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
+    assert m.msg_count == 1
+    assert m.control == 0x4510
+    assert str(m.seq) == '03:02'
+    assert m.header_len==11
+    assert m.data_len==23
+    assert m._forward_buffer==MsgUnknownCmd
+    assert m._send_buffer==b''
+    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
+    assert m.db.stat['proxy']['AT_Command'] == 0
+    assert m.db.stat['proxy']['Modbus_Command'] == 0
+    assert m.db.stat['proxy']['Invalid_Msg_Format'] == 0
+    m.close()
+
+def test_msg_modbus_rsp1(ConfigTsunInv1, MsgModbusRsp):
+    '''Modbus response without a valid Modbus request must be dropped'''
+    ConfigTsunInv1
+    m = MemoryStream(MsgModbusRsp)
+    m.db.stat['proxy']['Unknown_Ctrl'] = 0
+    m.db.stat['proxy']['Modbus_Command'] = 0
+    m.read()         # read complete msg, and dispatch msg
+    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
+    assert m.msg_count == 1
+    assert m.control == 0x1510
+    assert str(m.seq) == '03:03'
+    assert m.header_len==11
+    assert m.data_len==59
+    assert m._forward_buffer==b''
+    assert m._send_buffer==b''
+    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
+    assert m.db.stat['proxy']['Modbus_Command'] == 0
+    m.close()
+
+def test_msg_modbus_rsp2(ConfigTsunInv1, MsgModbusRsp):
+    '''Modbus response with a valid Modbus request must be forwarded'''
+    ConfigTsunInv1
+    m = MemoryStream(MsgModbusRsp)
+    m.append_msg(MsgModbusRsp)
+
+    m.mb.rsp_handler = m._SolarmanV5__forward_msg
+    m.mb.last_addr = 1
+    m.mb.last_fcode = 3
+    m.mb.last_len = 20
+    m.mb.last_reg = 0x3008
+    m.mb.req_pend = True
+    m.mb.err = 0
+    # assert m.db.db == {'inverter': {'Manufacturer': 'TSUN', 'Equipment_Model': 'TSOL-MSxx00'}}
+    m.new_data['inverter'] = False
+
+    m.read()         # read complete msg, and dispatch msg
+    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
+    assert m.mb.err == 0
+    assert m.msg_count == 1
+    assert m._forward_buffer==MsgModbusRsp
+    assert m._send_buffer==b''
+    # assert m.db.db == {'inverter': {'Version': 'V5.1.09', 'Rated_Power': 300}, 'grid': {'Voltage': 225.9, 'Current': 0.41, 'Frequency': 49.99, 'Output_Power': 94.8}, 'env': {'Inverter_Temp': 22}, 'input': {'pv1': {'Voltage': 0.8, 'Current': 0.0, 'Power': 0.0}, 'pv2': {'Voltage': 34.5, 'Current': 2.89, 'Power': 99.8}, 'pv3': {'Voltage': 0.0, 'Current': 0.0, 'Power': 0.0}, 'pv4': {'Voltage': 0.0, 'Current': 0.0, 'Power': 0.0}}}
+    assert m.db.get_db_value(Register.VERSION) == 'V4.0.10'
+    assert m.new_data['inverter'] == True
+    m.new_data['inverter'] = False
+
+    m.mb.req_pend = True
+    m.read()         # read complete msg, and dispatch msg
+    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
+    assert m.mb.err == 0
+    assert m.msg_count == 2
+    assert m._forward_buffer==MsgModbusRsp
+    assert m._send_buffer==b''
+    # assert m.db.db == {'inverter': {'Version': 'V5.1.09', 'Rated_Power': 300}, 'grid': {'Voltage': 225.9, 'Current': 0.41, 'Frequency': 49.99, 'Output_Power': 94.8}, 'env': {'Inverter_Temp': 22}, 'input': {'pv1': {'Voltage': 0.8, 'Current': 0.0, 'Power': 0.0}, 'pv2': {'Voltage': 34.5, 'Current': 2.89, 'Power': 99.8}, 'pv3': {'Voltage': 0.0, 'Current': 0.0, 'Power': 0.0}, 'pv4': {'Voltage': 0.0, 'Current': 0.0, 'Power': 0.0}}}
+    assert m.db.get_db_value(Register.VERSION) == 'V4.0.10'
+    assert m.new_data['inverter'] == False
+
+    m.close()
+
+def test_msg_modbus_rsp3(ConfigTsunInv1, MsgModbusRsp):
+    '''Modbus response with a valid Modbus request must be forwarded'''
+    ConfigTsunInv1
+    m = MemoryStream(MsgModbusRsp)
+    m.append_msg(MsgModbusRsp)
+
+    m.mb.rsp_handler = m._SolarmanV5__forward_msg
+    m.mb.last_addr = 1
+    m.mb.last_fcode = 3
+    m.mb.last_len = 20
+    m.mb.last_reg = 0x3008
+    m.mb.req_pend = True
+    m.mb.err = 0
+    # assert m.db.db == {'inverter': {'Manufacturer': 'TSUN', 'Equipment_Model': 'TSOL-MSxx00'}}
+    m.new_data['inverter'] = False
+
+    m.read()         # read complete msg, and dispatch msg
+    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
+    assert m.mb.err == 0
+    assert m.msg_count == 1
+    assert m._forward_buffer==MsgModbusRsp
+    assert m._send_buffer==b''
+    # assert m.db.db == {'inverter': {'Version': 'V5.1.09', 'Rated_Power': 300}, 'grid': {'Voltage': 225.9, 'Current': 0.41, 'Frequency': 49.99, 'Output_Power': 94.8}, 'env': {'Inverter_Temp': 22}, 'input': {'pv1': {'Voltage': 0.8, 'Current': 0.0, 'Power': 0.0}, 'pv2': {'Voltage': 34.5, 'Current': 2.89, 'Power': 99.8}, 'pv3': {'Voltage': 0.0, 'Current': 0.0, 'Power': 0.0}, 'pv4': {'Voltage': 0.0, 'Current': 0.0, 'Power': 0.0}}}
+    assert m.db.get_db_value(Register.VERSION) == 'V4.0.10'
+    assert m.new_data['inverter'] == True
+    m.new_data['inverter'] = False
+
+    m.read()         # read complete msg, and dispatch msg
+    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
+    assert m.mb.err == 5
+    assert m.msg_count == 2
+    assert m._forward_buffer==MsgModbusRsp
+    assert m._send_buffer==b''
+    # assert m.db.db == {'inverter': {'Version': 'V5.1.09', 'Rated_Power': 300}, 'grid': {'Voltage': 225.9, 'Current': 0.41, 'Frequency': 49.99, 'Output_Power': 94.8}, 'env': {'Inverter_Temp': 22}, 'input': {'pv1': {'Voltage': 0.8, 'Current': 0.0, 'Power': 0.0}, 'pv2': {'Voltage': 34.5, 'Current': 2.89, 'Power': 99.8}, 'pv3': {'Voltage': 0.0, 'Current': 0.0, 'Power': 0.0}, 'pv4': {'Voltage': 0.0, 'Current': 0.0, 'Power': 0.0}}}
+    assert m.db.get_db_value(Register.VERSION) == 'V4.0.10'
+    assert m.new_data['inverter'] == False
+
+    m.close()
+
+def test_msg_unknown_rsp(ConfigTsunInv1, MsgUnknownCmdRsp):
+    ConfigTsunInv1
+    m = MemoryStream(MsgUnknownCmdRsp)
+    m.db.stat['proxy']['Unknown_Ctrl'] = 0
+    m.db.stat['proxy']['Modbus_Command'] = 0
+    m.read()         # read complete msg, and dispatch msg
+    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
+    assert m.msg_count == 1
+    assert m.control == 0x1510
+    assert str(m.seq) == '03:03'
+    assert m.header_len==11
+    assert m.data_len==59
+    assert m._forward_buffer==MsgUnknownCmdRsp
+    assert m._send_buffer==b''
+    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
+    assert m.db.stat['proxy']['Modbus_Command'] == 0
+    m.close()
+
+def test_msg_modbus_invalid(ConfigTsunInv1, MsgModbusInvalid):
+    ConfigTsunInv1
+    m = MemoryStream(MsgModbusInvalid, (0,), False)
+    m.db.stat['proxy']['Unknown_Ctrl'] = 0
+    m.db.stat['proxy']['Modbus_Command'] = 0
+    m.read()         # read complete msg, and dispatch msg
+    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
+    assert m.msg_count == 1
+    assert m._forward_buffer==b''
+    assert m._send_buffer==b''
+    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
+    assert m.db.stat['proxy']['Modbus_Command'] == 0
+    m.close()
+
+def test_msg_modbus_fragment(ConfigTsunInv1, MsgModbusRsp):
+    ConfigTsunInv1
+    # receive more bytes than expected (7 bytes from the next msg)
+    m = MemoryStream(MsgModbusRsp+b'\x00\x00\x00\x45\x10\x52\x31', (0,))
+    m.db.stat['proxy']['Unknown_Ctrl'] = 0
+    m.db.stat['proxy']['Modbus_Command'] = 0
+    m.mb.rsp_handler = m._SolarmanV5__forward_msg
+    m.mb.last_addr = 1
+    m.mb.last_fcode = 3
+    m.mb.last_len = 20
+    m.mb.last_reg = 0x3008
+    m.mb.req_pend = True
+    m.mb.err = 0
+
+    m.read()         # read complete msg, and dispatch msg
+    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
+    assert m.msg_count == 1
+    assert m._forward_buffer==MsgModbusRsp
+    assert m._send_buffer == b''
+    assert m.mb.err == 0
+    assert m.modbus_elms == 20-1  # register 0x300d is unknown, so one value can't be mapped
+    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
+    assert m.db.stat['proxy']['Modbus_Command'] == 0
+    m.close()
+'''
+def test_zombie_conn(ConfigTsunInv1, MsgInverterInd):
+    ConfigTsunInv1
+    tracer.setLevel(logging.DEBUG)
+    m1 = MemoryStream(MsgInverterInd, (0,))
+    m2 = MemoryStream(MsgInverterInd, (0,))
+    m3 = MemoryStream(MsgInverterInd, (0,))
+    assert m1.state == m1.State.init
+    assert m2.state == m2.State.init
+    assert m3.state == m3.State.init
+    m1.read()         # read complete msg, and set unique_id
+    assert m1.state == m1.State.init
+    assert m2.state == m2.State.init
+    assert m3.state == m3.State.init
+    m2.read()         # read complete msg, and set unique_id
+    assert m1.state == m1.State.closed
+    assert m2.state == m2.State.init
+    assert m3.state == m3.State.init
+    m3.read()         # read complete msg, and set unique_id
+    assert m1.state == m1.State.closed
+    assert m2.state == m2.State.closed
+    assert m3.state == m3.State.init
+    m1.close()
+    m2.close()
+    m3.close()
+'''

app/tests/test_talent.py

@@ -2,16 +2,32 @@
 import pytest, logging
 from app.src.gen3.talent import Talent, Control
 from app.src.config import Config
-from app.src.infos import Infos
+from app.src.infos import Infos, Register
+from app.src.modbus import Modbus
+from app.src.messages import State
+
+ 
+pytest_plugins = ('pytest_asyncio',)
 
 # initialize the proxy statistics
 Infos.static_init()
 
 tracer = logging.getLogger('tracer')
-    
+
+
+class Writer():
+    def __init__(self):
+        self.sent_pdu = b''
+
+    def write(self, pdu: bytearray):
+        self.sent_pdu = pdu
+
 class MemoryStream(Talent):
     def __init__(self, msg, chunks = (0,), server_side: bool = True):
         super().__init__(server_side)
+        if server_side:
+            self.mb.timeout = 1   # overwrite for faster testing
+        self.writer = Writer()
         self.__msg = msg
         self.__msg_len = len(msg)
         self.__chunks = chunks
@@ -19,6 +35,8 @@ class MemoryStream(Talent):
         self.__chunk_idx = 0
         self.msg_count = 0
         self.addr = 'Test: SrvSide'
+        self.send_msg_ofs = 0
+        self.test_exception_async_write = False
 
     def append_msg(self, msg):
         self.__msg += msg
@@ -43,13 +61,25 @@ class MemoryStream(Talent):
         return copied_bytes
     
     def _timestamp(self):
-        return 1700260990000
+        # return 1700260990000
+        return 1691246944000
     
+    def createClientStream(self, msg, chunks = (0,)):
+        c = MemoryStream(msg, chunks, False)
+        self.remoteStream = c
+        c. remoteStream = self
+        return c
+
     def _Talent__flush_recv_msg(self) -> None:
         super()._Talent__flush_recv_msg()
         self.msg_count += 1
         return
     
+    async def async_write(self, headline=''):
+        if self.test_exception_async_write:
+            raise RuntimeError("Peer closed.")
+
+    
 
 @pytest.fixture
 def MsgContactInfo(): # Contact Info message
@@ -85,6 +115,10 @@ def MsgGetTime(): # Get Time Request message
 def MsgTimeResp(): # Get Time Resonse message
     return b'\x00\x00\x00\x1b\x10R170000000000001\x91\x22\x00\x00\x01\x89\xc6\x63\x4d\x80'
 
+@pytest.fixture
+def MsgTimeRespInv(): # Get Time Resonse message
+    return b'\x00\x00\x00\x17\x10R170000000000001\x91\x22\x00\x00\x01\x89'
+
 @pytest.fixture
 def MsgTimeInvalid(): # Get Time Request message
     return b'\x00\x00\x00\x13\x10R170000000000001\x94\x22'           
@@ -101,6 +135,18 @@ def MsgControllerInd(): # Data indication from the controller
     msg +=  b'\x49\x00\x00\x00\x02\x00\x0d\x04\x08\x49\x00\x00\x00\x00\x00\x07\xa1\x84\x49\x00\x00\x00\x01\x00\x0c\x50\x59\x49\x00\x00\x00\x4c\x00\x0d\x1f\x60\x49\x00\x00\x00\x00'
     return msg
 
+@pytest.fixture
+def MsgControllerIndTsOffs(): # Data indication from the controller - offset 0x1000
+    msg  =  b'\x00\x00\x01\x2f\x10R170000000000001\x91\x71\x0e\x10\x00\x00\x10R170000000000001'
+    msg +=  b'\x01\x00\x00\x01\x89\xc6\x63\x45\x50'
+    msg +=  b'\x00\x00\x00\x15\x00\x09\x2b\xa8\x54\x10\x52\x53\x57\x5f\x34\x30\x30\x5f\x56\x31\x2e\x30\x30\x2e\x30\x36\x00\x09\x27\xc0\x54\x06\x52\x61\x79\x6d\x6f'
+    msg +=  b'\x6e\x00\x09\x2f\x90\x54\x0b\x52\x53\x57\x2d\x31\x2d\x31\x30\x30\x30\x31\x00\x09\x5a\x88\x54\x0f\x74\x2e\x72\x61\x79\x6d\x6f\x6e\x69\x6f\x74\x2e\x63\x6f\x6d\x00\x09\x5a\xec\x54'
+    msg +=  b'\x1c\x6c\x6f\x67\x67\x65\x72\x2e\x74\x61\x6c\x65\x6e\x74\x2d\x6d\x6f\x6e\x69\x74\x6f\x72\x69\x6e\x67\x2e\x63\x6f\x6d\x00\x0d\x00\x20\x49\x00\x00\x00\x01\x00\x0c\x35\x00\x49\x00'
+    msg +=  b'\x00\x00\x64\x00\x0c\x96\xa8\x49\x00\x00\x00\x1d\x00\x0c\x7f\x38\x49\x00\x00\x00\x01\x00\x0c\xfc\x38\x49\x00\x00\x00\x01\x00\x0c\xf8\x50\x49\x00\x00\x01\x2c\x00\x0c\x63\xe0\x49'
+    msg +=  b'\x00\x00\x00\x00\x00\x0c\x67\xc8\x49\x00\x00\x00\x00\x00\x0c\x50\x58\x49\x00\x00\x00\x01\x00\x09\x5e\x70\x49\x00\x00\x13\x8d\x00\x09\x5e\xd4\x49\x00\x00\x13\x8d\x00\x09\x5b\x50'
+    msg +=  b'\x49\x00\x00\x00\x02\x00\x0d\x04\x08\x49\x00\x00\x00\x00\x00\x07\xa1\x84\x49\x00\x00\x00\x01\x00\x0c\x50\x59\x49\x00\x00\x00\x4c\x00\x0d\x1f\x60\x49\x00\x00\x00\x00'
+    return msg
+
 @pytest.fixture
 def MsgControllerAck(): # Get Time Request message
     return b'\x00\x00\x00\x14\x10R170000000000001\x99\x71\x01'
@@ -117,6 +163,92 @@ def MsgInverterInd(): # Data indication from the controller
     msg +=  b'\x54\x10T170000000000001\x00\x00\x00\x32\x54\x0a\x54\x53\x4f\x4c\x2d\x4d\x53\x36\x30\x30\x00\x00\x00\x3c\x54\x05\x41\x2c\x42\x2c\x43'
     return msg
 
+@pytest.fixture
+def MsgInverterIndTsOffs(): # Data indication from the controller + offset 256
+    msg  =  b'\x00\x00\x00\x8b\x10R170000000000001\x91\x04\x01\x90\x00\x01\x10R170000000000001'
+    msg +=  b'\x01\x00\x00\x01\x89\xc6\x63\x62\x08'
+    msg +=  b'\x00\x00\x00\x06\x00\x00\x00\x0a\x54\x08\x4d\x69\x63\x72\x6f\x69\x6e\x76\x00\x00\x00\x14\x54\x04\x54\x53\x55\x4e\x00\x00\x00\x1E\x54\x07\x56\x35\x2e\x30\x2e\x31\x31\x00\x00\x00\x28'
+    msg +=  b'\x54\x10T170000000000001\x00\x00\x00\x32\x54\x0a\x54\x53\x4f\x4c\x2d\x4d\x53\x36\x30\x30\x00\x00\x00\x3c\x54\x05\x41\x2c\x42\x2c\x43'
+    return msg
+
+@pytest.fixture
+def MsgInverterIndNew(): # Data indication from DSP V5.0.17
+    msg =  b'\x00\x00\x04\xa0\x10R170000000000001\x91\x04\x01\x90\x00\x01\x10R170000000000001'
+    msg += b'\x01\x00\x00\x01'
+    msg += b'\x90\x31\x4d\x68\x78\x00\x00\x00\xa3\x00\x00\x00\x00\x53\x00\x00'
+    msg += b'\x00\x00\x00\x80\x53\x00\x00\x00\x00\x01\x04\x53\x00\x00\x00\x00'
+    msg += b'\x01\x90\x41\x00\x00\x01\x91\x53\x00\x00\x00\x00\x01\x90\x53\x00'
+    msg += b'\x00\x00\x00\x01\x91\x53\x00\x00\x00\x00\x01\x90\x53\x00\x00\x00'
+    msg += b'\x00\x01\x91\x53\x00\x00\x00\x00\x01\x94\x53\x00\x00\x00\x00\x01'
+    msg += b'\x95\x53\x00\x00\x00\x00\x01\x98\x53\x00\x00\x00\x00\x01\x99\x53'
+    msg += b'\x00\x00\x00\x00\x01\x80\x53\x00\x00\x00\x00\x01\x90\x41\x00\x00'
+    msg += b'\x01\x94\x53\x00\x00\x00\x00\x01\x94\x53\x00\x00\x00\x00\x01\x96'
+    msg += b'\x53\x00\x00\x00\x00\x01\x98\x53\x00\x00\x00\x00\x01\xa0\x53\x00'
+    msg += b'\x00\x00\x00\x01\xf0\x41\x00\x00\x01\xf1\x53\x00\x00\x00\x00\x01'
+    msg += b'\xf4\x53\x00\x00\x00\x00\x01\xf5\x53\x00\x00\x00\x00\x01\xf8\x53'
+    msg += b'\x00\x00\x00\x00\x01\xf9\x53\x00\x00\x00\x00\x00\x00\x53\x00\x00'
+    msg += b'\x00\x00\x00\x01\x53\x00\x00\x00\x00\x00\x00\x53\x00\x00\x00\x00'
+    msg += b'\x00\x01\x53\x00\x00\x00\x00\x00\x04\x53\x00\x00\x00\x00\x00\x58'
+    msg += b'\x41\x00\x00\x02\x00\x53\x00\x00\x00\x00\x02\x00\x53\x00\x00\x00'
+    msg += b'\x00\x02\x02\x53\x00\x00\x00\x00\x02\x00\x53\x00\x00\x00\x00\x02'
+    msg += b'\x04\x53\x00\x00\x00\x00\x02\x58\x41\x00\x00\x02\x59\x53\x00\x00'
+    msg += b'\x00\x00\x02\x40\x53\x00\x00\x00\x00\x02\x41\x53\x00\x00\x00\x00'
+    msg += b'\x02\x40\x53\x00\x00\x00\x00\x02\x41\x53\x00\x00\x00\x00\x02\x44'
+    msg += b'\x53\x00\x00\x00\x00\x02\x45\x53\x00\x00\x00\x00\x02\x60\x53\x00'
+    msg += b'\x00\x00\x00\x02\x61\x53\x00\x00\x00\x00\x02\x60\x53\x00\x00\x00'
+    msg += b'\x00\x02\x20\x41\x00\x00\x02\x24\x53\x00\x00\x00\x00\x02\x24\x53'
+    msg += b'\x00\x00\x00\x00\x02\x26\x53\x00\x00\x00\x00\x02\x40\x53\x00\x00'
+    msg += b'\x00\x00\x02\x40\x53\x00\x00\x00\x00\x02\x80\x41\x00\x00\x02\x81'
+    msg += b'\x53\x00\x00\x00\x00\x02\x84\x53\x00\x00\x00\x00\x02\x85\x53\x00'
+    msg += b'\x00\x00\x00\x02\xc0\x53\x00\x00\x00\x00\x02\xc1\x53\x00\x00\x00'
+    msg += b'\x00\x02\xc0\x53\x00\x00\x00\x00\x02\xc1\x53\x00\x00\x00\x00\x02'
+    msg += b'\xc0\x53\x00\x00\x00\x00\x02\xc1\x53\x00\x00\x00\x00\x02\xc4\x53'
+    msg += b'\x00\x00\x00\x00\x02\x00\x53\x00\x00\x00\x00\x02\x80\x53\x00\x00'
+    msg += b'\x00\x00\x02\xc8\x42\x00\x00\x00\x00\x48\x42\x00\x00\x00\x00\x80'
+    msg += b'\x42\x00\x00\x00\x00\x04\x53\x00\x00\x00\x00\x01\x20\x53\x00\x00'
+    msg += b'\x00\x00\x01\x84\x53\x00\x10\x00\x00\x02\x40\x46\x00\x00\x00\x00'
+    msg += b'\x00\x00\x04\x04\x46\x02\x00\x46\x02\x00\x00\x04\x00\x46\x00\x00'
+    msg += b'\x00\x00\x00\x00\x05\x04\x42\x00\x00\x00\x05\x50\x42\x00\x00\x00'
+    msg += b'\x00\x14\x42\x00\x00\x00\x00\x00\x46\x00\x00\x00\x00\x00\x00\x00'
+    msg += b'\xa4\x46\x00\x00\x00\x00\x00\x00\x01\x00\x46\x00\x00\x00\x00\x00'
+    msg += b'\x00\x01\x44\x46\x00\x00\x00\x00\x00\x00\x02\x00\x46\x00\x00\x00'
+    msg += b'\x00\x00\x00\x08\x04\x46\x00\x00\x00\x00\x00\x00\x08\x90\x46\x00'
+    msg += b'\x00\x00\x00\x00\x00\x08\x54\x46\x00\x00\x00\x00\x00\x00\x09\x20'
+    msg += b'\x46\x00\x00\x00\x00\x00\x00\x08\x04\x46\x00\x00\x00\x00\x00\x00'
+    msg += b'\x08\x00\x46\x00\x00\x00\x00\x00\x00\x08\x84\x46\x00\x00\x00\x00'
+    msg += b'\x00\x00\x08\x40\x46\x00\x00\x00\x00\x00\x00\x09\x04\x46\x00\x00'
+    msg += b'\x00\x00\x00\x00\x0a\x10\x46\x00\x00\x00\x00\x00\x00\x0c\x14\x46'
+    msg += b'\x00\x00\x00\x00\x00\x00\x0c\x80\x46\x00\x00\x00\x00\x00\x00\x0c'
+    msg += b'\x24\x42\x00\x00\x00\x0d\x00\x42\x00\x00\x00\x00\x04\x42\x00\x00'
+    msg += b'\x00\x00\x00\x42\x00\x00\x00\x00\x44\x42\x00\x00\x00\x00\x10\x42'
+    msg += b'\x00\x00\x00\x01\x14\x53\x00\x00\x00\x00\x01\xa0\x53\x00\x00\x00'
+    msg += b'\x00\x10\x04\x53\x55\xaa\x00\x00\x10\x40\x53\x00\x00\x00\x00\x10'
+    msg += b'\x04\x53\x00\x00\x00\x00\x11\x00\x53\x00\x00\x00\x00\x11\x84\x53'
+    msg += b'\x00\x00\x00\x00\x10\x50\x53\xff\xff\x00\x00\x10\x14\x53\x03\x20'
+    msg += b'\x00\x00\x10\x00\x53\x00\x00\x00\x00\x11\x24\x53\x00\x00\x00\x00'
+    msg += b'\x03\x00\x53\x00\x00\x00\x00\x03\x64\x53\x00\x00\x00\x00\x04\x50'
+    msg += b'\x53\x00\x00\x00\x00\x00\x34\x53\x00\x00\x00\x00\x00\x00\x42\x02'
+    msg += b'\x00\x00\x01\x04\x42\x00\x00\x00\x21\x00\x42\x00\x00\x00\x21\x44'
+    msg += b'\x42\x00\x00\x00\x22\x10\x53\x00\x00\x00\x00\x28\x14\x42\x01\x00'
+    msg += b'\x00\x28\xa0\x46\x42\x48\x00\x00\x00\x00\x29\x04\x42\x00\x00\x00'
+    msg += b'\x29\x40\x42\x00\x00\x00\x28\x04\x46\x42\x10\x00\x00\x00\x00\x28'
+    msg += b'\x00\x42\x00\x00\x00\x28\x84\x42\x00\x00\x00\x28\x50\x42\x00\x00'
+    msg += b'\x00\x29\x14\x42\x00\x00\x00\x2a\x00\x42\x00\x00\x00\x2c\x24\x46'
+    msg += b'\x42\x10\x00\x00\x00\x00\x2c\x80\x42\x00\x00\x00\x2c\x44\x53\x00'
+    msg += b'\x02\x00\x00\x2d\x00\x42\x00\x00\x00\x20\x04\x46\x42\x4d\x00\x00'
+    msg += b'\x00\x00\x20\x10\x42\x00\x00\x00\x20\x54\x42\x00\x00\x00\x20\x20'
+    msg += b'\x42\x00\x00\x00\x21\x04\x53\x00\x01\x00\x00\x22\x00\x42\x00\x00'
+    msg += b'\x00\x30\x04\x42\x00\x00\x00\x30\x40\x53\x00\x00\x00\x00\x30\x04'
+    msg += b'\x53\x00\x00\x00\x00\x31\x10\x42\x00\x00\x00\x31\x94\x53\x00\x04'
+    msg += b'\x00\x00\x30\x00\x53\x00\x00\x00\x00\x30\x24\x53\x00\x00\x00\x00'
+    msg += b'\x30\x00\x53\x00\x00\x00\x00\x31\x04\x53\x00\x00\x00\x00\x31\x80'
+    msg += b'\x53\x00\x00\x00\x00\x32\x44\x53\x00\x00\x00\x00\x30\x00\x53\x00'
+    msg += b'\x00\x00\x00\x30\x80\x53\x00\x00\x00\x00\x30\x00\x53\x00\x00\x00'
+    msg += b'\x00\x30\x80\x53\x00\x00\x00\x00\x00\x08\x00\x00\x00\x00\x00\x00'
+    msg += b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x03\x00'
+    msg += b'\x00\x00\x00\x00'
+    return msg
+
 @pytest.fixture
 def MsgInverterAck(): # Get Time Request message
     return b'\x00\x00\x00\x14\x10R170000000000001\x99\x04\x01'
@@ -170,6 +302,42 @@ def MsgOtaAck(): # Over the air update rewuest from tsun cloud
 def MsgOtaInvalid(): # Get Time Request message
     return b'\x00\x00\x00\x14\x10R170000000000001\x99\x13\x01'
 
+@pytest.fixture
+def MsgModbusCmd():
+    msg  = b'\x00\x00\x00\x20\x10R170000000000001'
+    msg += b'\x70\x77\x00\x01\xa3\x28\x08\x01\x06\x20\x08'
+    msg += b'\x00\x00\x03\xc8'
+    return msg
+
+@pytest.fixture
+def MsgModbusCmdCrcErr():
+    msg  = b'\x00\x00\x00\x20\x10R170000000000001'
+    msg += b'\x70\x77\x00\x01\xa3\x28\x08\x01\x06\x20\x08'
+    msg += b'\x00\x00\x04\xc8'
+    return msg
+
+@pytest.fixture
+def MsgModbusRsp():
+    msg  = b'\x00\x00\x00\x20\x10R170000000000001'
+    msg += b'\x91\x77\x17\x18\x19\x1a\x08\x01\x06\x20\x08'
+    msg += b'\x00\x00\x03\xc8'
+    return msg
+
+@pytest.fixture
+def MsgModbusInv():
+    msg  = b'\x00\x00\x00\x20\x10R170000000000001'
+    msg += b'\x99\x77\x17\x18\x19\x1a\x08\x01\x06\x20\x08'
+    msg += b'\x00\x00\x03\xc8'
+    return msg
+
+@pytest.fixture
+def MsgModbusResp20():
+    msg  = b'\x00\x00\x00\x45\x10R170000000000001'
+    msg += b'\x91\x77\x17\x18\x19\x1a\x2d\x01\x03\x28\x51'
+    msg += b'\x09\x08\xd3\x00\x29\x13\x87\x00\x3e\x00\x00\x01\x2c\x03\xb4\x00'
+    msg += b'\x08\x00\x00\x00\x00\x01\x59\x01\x21\x03\xe6\x00\x00\x00\x00\x00'
+    msg += b'\x00\x00\x00\x00\x00\x00\x00\xdb\x6b'
+    return msg
 
 def test_read_message(MsgContactInfo):
     m = MemoryStream(MsgContactInfo, (0,))
@@ -267,8 +435,7 @@ def test_read_message_in_chunks2(MsgContactInfo):
     assert int(m.ctrl)==145
     assert m.msg_id==0 
     assert m.msg_count == 1
-    while m.read(): # read rest of message
+    m.read()         # read rest of message
-        pass
     assert m.msg_count == 1
     assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
     m.close()
@@ -407,9 +574,10 @@ def test_msg_get_time(ConfigTsunInv1, MsgGetTime):
     assert int(m.ctrl)==145
     assert m.msg_id==34
     assert m.header_len==23
+    assert m.ts_offset==0
     assert m.data_len==0
     assert m._forward_buffer==MsgGetTime
-    assert m._send_buffer==b''
+    assert m._send_buffer==b'\x00\x00\x00\x1b\x10R170000000000001\x91"\x00\x00\x01\x89\xc6,_\x00'
     assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
     m.close()
 
@@ -425,9 +593,10 @@ def test_msg_get_time_autark(ConfigNoTsunInv1, MsgGetTime):
     assert int(m.ctrl)==145
     assert m.msg_id==34
     assert m.header_len==23
+    assert m.ts_offset==0
     assert m.data_len==0
     assert m._forward_buffer==b''
-    assert m._send_buffer==b'\x00\x00\x00\x1b\x10R170000000000001\x91"\x00\x00\x01\x8b\xdfs\xcc0'
+    assert m._send_buffer==bytearray(b'\x00\x00\x00\x1b\x10R170000000000001\x91"\x00\x00\x01\x89\xc6,_\x00')
     assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
     m.close()
 
@@ -443,8 +612,9 @@ def test_msg_time_resp(ConfigTsunInv1, MsgTimeResp):
     assert int(m.ctrl)==145
     assert m.msg_id==34
     assert m.header_len==23
+    assert m.ts_offset==3600000
     assert m.data_len==8
-    assert m._forward_buffer==MsgTimeResp
+    assert m._forward_buffer==b''
     assert m._send_buffer==b''
     assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
     m.close()
@@ -461,12 +631,32 @@ def test_msg_time_resp_autark(ConfigNoTsunInv1, MsgTimeResp):
     assert int(m.ctrl)==145
     assert m.msg_id==34
     assert m.header_len==23
+    assert m.ts_offset==3600000
     assert m.data_len==8
     assert m._forward_buffer==b''
     assert m._send_buffer==b''
     assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
     m.close()
 
+def test_msg_time_inv_resp(ConfigTsunInv1, MsgTimeRespInv):
+    ConfigTsunInv1
+    m = MemoryStream(MsgTimeRespInv, (0,), False)
+    m.db.stat['proxy']['Unknown_Ctrl'] = 0
+    m.read()         # read complete msg, and dispatch msg
+    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
+    assert m.msg_count == 1
+    assert m.id_str == b"R170000000000001" 
+    assert m.unique_id == 'R170000000000001'
+    assert int(m.ctrl)==145
+    assert m.msg_id==34
+    assert m.header_len==23
+    assert m.ts_offset==0
+    assert m.data_len==4
+    assert m._forward_buffer==MsgTimeRespInv
+    assert m._send_buffer==b''
+    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
+    m.close()
+
 def test_msg_time_invalid(ConfigTsunInv1, MsgTimeInvalid):
     ConfigTsunInv1
     m = MemoryStream(MsgTimeInvalid, (0,), False)
@@ -479,6 +669,7 @@ def test_msg_time_invalid(ConfigTsunInv1, MsgTimeInvalid):
     assert int(m.ctrl)==148
     assert m.msg_id==34
     assert m.header_len==23
+    assert m.ts_offset==0
     assert m.data_len==0
     assert m._forward_buffer==MsgTimeInvalid
     assert m._send_buffer==b''
@@ -496,6 +687,7 @@ def test_msg_time_invalid_autark(ConfigNoTsunInv1, MsgTimeInvalid):
     assert m.unique_id == 'R170000000000001'
     assert int(m.ctrl)==148
     assert m.msg_id==34
+    assert m.ts_offset==0
     assert m.header_len==23
     assert m.data_len==0
     assert m._forward_buffer==b''
@@ -503,7 +695,7 @@ def test_msg_time_invalid_autark(ConfigNoTsunInv1, MsgTimeInvalid):
     assert m.db.stat['proxy']['Unknown_Ctrl'] == 1
     m.close()
 
-def test_msg_cntrl_ind(ConfigTsunInv1, MsgControllerInd, MsgControllerAck):
+def test_msg_cntrl_ind(ConfigTsunInv1, MsgControllerInd, MsgControllerIndTsOffs, MsgControllerAck):
     ConfigTsunInv1
     m = MemoryStream(MsgControllerInd, (0,))
     m.db.stat['proxy']['Unknown_Ctrl'] = 0
@@ -516,7 +708,12 @@ def test_msg_cntrl_ind(ConfigTsunInv1, MsgControllerInd, MsgControllerAck):
     assert m.msg_id==113
     assert m.header_len==23
     assert m.data_len==284
+    m.ts_offset = 0
+    m._update_header(m._forward_buffer)
     assert m._forward_buffer==MsgControllerInd
+    m.ts_offset = -4096
+    m._update_header(m._forward_buffer)
+    assert m._forward_buffer==MsgControllerIndTsOffs
     assert m._send_buffer==MsgControllerAck
     assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
     m.close()
@@ -552,12 +749,17 @@ def test_msg_cntrl_invalid(ConfigTsunInv1, MsgControllerInvalid):
     assert m.msg_id==113
     assert m.header_len==23
     assert m.data_len==1
+    m.ts_offset = 0
+    m._update_header(m._forward_buffer)
+    assert m._forward_buffer==MsgControllerInvalid
+    m.ts_offset = -4096
+    m._update_header(m._forward_buffer)
     assert m._forward_buffer==MsgControllerInvalid
     assert m._send_buffer==b''
     assert m.db.stat['proxy']['Unknown_Ctrl'] == 1
     m.close()
 
-def test_msg_inv_ind(ConfigTsunInv1, MsgInverterInd, MsgInverterAck):
+def test_msg_inv_ind(ConfigTsunInv1, MsgInverterInd, MsgInverterIndTsOffs, MsgInverterAck):
     ConfigTsunInv1
     tracer.setLevel(logging.DEBUG)
     m = MemoryStream(MsgInverterInd, (0,))
@@ -571,11 +773,62 @@ def test_msg_inv_ind(ConfigTsunInv1, MsgInverterInd, MsgInverterAck):
     assert m.msg_id==4
     assert m.header_len==23
     assert m.data_len==120
+    m.ts_offset = 0
+    m._update_header(m._forward_buffer)
     assert m._forward_buffer==MsgInverterInd
+    m.ts_offset = +256
+    m._update_header(m._forward_buffer)
+    assert m._forward_buffer==MsgInverterIndTsOffs
     assert m._send_buffer==MsgInverterAck
     assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
     m.close()
-        
+
+def test_msg_inv_ind2(ConfigTsunInv1, MsgInverterIndNew, MsgInverterIndTsOffs, MsgInverterAck):
+    ConfigTsunInv1
+    tracer.setLevel(logging.DEBUG)
+    m = MemoryStream(MsgInverterIndNew, (0,))
+    m.db.stat['proxy']['Unknown_Ctrl'] = 0
+    m.db.stat['proxy']['Invalid_Data_Type'] = 0
+    m.read()         # read complete msg, and dispatch msg
+    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
+    assert m.db.stat['proxy']['Invalid_Data_Type'] == 0
+    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
+    assert m.msg_count == 1
+    assert m.id_str == b"R170000000000001" 
+    assert m.unique_id == 'R170000000000001'
+    assert int(m.ctrl)==145
+    assert m.msg_id==4
+    assert m.header_len==23
+    assert m.data_len==1165
+    m.ts_offset = 0
+    m._update_header(m._forward_buffer)
+    assert m._forward_buffer==MsgInverterIndNew
+    assert m._send_buffer==MsgInverterAck
+    m.close()
+
+def test_msg_inv_ind2(ConfigTsunInv1, MsgInverterIndNew, MsgInverterIndTsOffs, MsgInverterAck):
+    ConfigTsunInv1
+    tracer.setLevel(logging.DEBUG)
+    m = MemoryStream(MsgInverterIndNew, (0,))
+    m.db.stat['proxy']['Unknown_Ctrl'] = 0
+    m.db.stat['proxy']['Invalid_Data_Type'] = 0
+    m.read()         # read complete msg, and dispatch msg
+    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
+    assert m.db.stat['proxy']['Invalid_Data_Type'] == 0
+    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
+    assert m.msg_count == 1
+    assert m.id_str == b"R170000000000001" 
+    assert m.unique_id == 'R170000000000001'
+    assert int(m.ctrl)==145
+    assert m.msg_id==4
+    assert m.header_len==23
+    assert m.data_len==1165
+    m.ts_offset = 0
+    m._update_header(m._forward_buffer)
+    assert m._forward_buffer==MsgInverterIndNew
+    assert m._send_buffer==MsgInverterAck
+    m.close()
+
 def test_msg_inv_ack(ConfigTsunInv1, MsgInverterAck):
     ConfigTsunInv1
     tracer.setLevel(logging.ERROR)
@@ -609,6 +862,11 @@ def test_msg_inv_invalid(ConfigTsunInv1, MsgInverterInvalid):
     assert m.msg_id==4
     assert m.header_len==23
     assert m.data_len==1
+    m.ts_offset = 0
+    m._update_header(m._forward_buffer)
+    assert m._forward_buffer==MsgInverterInvalid
+    m.ts_offset = 256
+    m._update_header(m._forward_buffer)
     assert m._forward_buffer==MsgInverterInvalid
     assert m._send_buffer==b''
     assert m.db.stat['proxy']['Unknown_Ctrl'] == 1
@@ -628,6 +886,11 @@ def test_msg_ota_req(ConfigTsunInv1, MsgOtaReq):
     assert m.msg_id==19
     assert m.header_len==23
     assert m.data_len==259
+    m.ts_offset = 0
+    m._update_header(m._forward_buffer)
+    assert m._forward_buffer==MsgOtaReq
+    m.ts_offset = 4096
+    m._update_header(m._forward_buffer)
     assert m._forward_buffer==MsgOtaReq
     assert m._send_buffer==b''
     assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
@@ -650,6 +913,11 @@ def test_msg_ota_ack(ConfigTsunInv1, MsgOtaAck):
     assert m.msg_id==19
     assert m.header_len==23
     assert m.data_len==1
+    m.ts_offset = 0
+    m._update_header(m._forward_buffer)
+    assert m._forward_buffer==MsgOtaAck
+    m.ts_offset = 256
+    m._update_header(m._forward_buffer)
     assert m._forward_buffer==MsgOtaAck
     assert m._send_buffer==b''
     assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
@@ -670,7 +938,12 @@ def test_msg_ota_invalid(ConfigTsunInv1, MsgOtaInvalid):
     assert m.msg_id==19
     assert m.header_len==23
     assert m.data_len==1
+    m.ts_offset = 0
+    m._update_header(m._forward_buffer)
     assert m._forward_buffer==MsgOtaInvalid
+    m.ts_offset = 4096
+    assert m._forward_buffer==MsgOtaInvalid
+    m._update_header(m._forward_buffer)
     assert m._send_buffer==b''
     assert m.db.stat['proxy']['Unknown_Ctrl'] == 1
     assert m.db.stat['proxy']['OTA_Start_Msg'] == 0
@@ -695,10 +968,16 @@ def test_msg_unknown(ConfigTsunInv1, MsgUnknown):
     m.close()
 
 def test_ctrl_byte():
+    c = Control(0x70)
+    assert not c.is_ind()
+    assert not c.is_resp()    
+    assert c.is_req()
     c = Control(0x91)
+    assert not c.is_req()
     assert c.is_ind()
     assert not c.is_resp()    
     c = Control(0x99)
+    assert not c.is_req()
     assert not c.is_ind()
     assert c.is_resp()    
 
@@ -724,19 +1003,378 @@ def test_msg_iterator():
     assert test2 == 1
 
 def test_proxy_counter():
-    m = Talent(server_side=True)
+    # m = MemoryStream(b'')
+    # m.close()
+    Infos.stat['proxy']['Modbus_Command'] = 1
+ 
+    m = MemoryStream(b'')
+    m.id_str = b"R170000000000001" 
+    c = m.createClientStream(b'')
+
     assert m.new_data == {}
     m.db.stat['proxy']['Unknown_Msg'] = 0
+    c.db.stat['proxy']['Unknown_Msg'] = 0
     Infos.new_stat_data['proxy'] =  False
 
     m.inc_counter('Unknown_Msg')
+    m.close()
+    m = MemoryStream(b'')
+   
     assert m.new_data == {}
     assert Infos.new_stat_data == {'proxy': True}
+    assert m.db.new_stat_data == {'proxy': True}
+    assert c.db.new_stat_data == {'proxy': True}
     assert 1 == m.db.stat['proxy']['Unknown_Msg']
+    assert 1 == c.db.stat['proxy']['Unknown_Msg']
+    Infos.new_stat_data['proxy'] =  False
+
+    c.inc_counter('Unknown_Msg')
+    assert m.new_data == {}
+    assert Infos.new_stat_data == {'proxy': True}
+    assert m.db.new_stat_data == {'proxy': True}
+    assert c.db.new_stat_data == {'proxy': True}
+    assert 2 == m.db.stat['proxy']['Unknown_Msg']
+    assert 2 == c.db.stat['proxy']['Unknown_Msg']
+    Infos.new_stat_data['proxy'] =  False
+
+    c.inc_counter('Modbus_Command')
+    assert m.new_data == {}
+    assert Infos.new_stat_data == {'proxy': True}
+    assert m.db.new_stat_data == {'proxy': True}
+    assert c.db.new_stat_data == {'proxy': True}
+    assert 2 == m.db.stat['proxy']['Modbus_Command']
+    assert 2 == c.db.stat['proxy']['Modbus_Command']
 
     Infos.new_stat_data['proxy'] =  False
     m.dec_counter('Unknown_Msg')
     assert m.new_data == {}
     assert Infos.new_stat_data == {'proxy': True}
-    assert 0 == m.db.stat['proxy']['Unknown_Msg']
+    assert 1 == m.db.stat['proxy']['Unknown_Msg']
     m.close()
+
+def test_msg_modbus_req(ConfigTsunInv1, MsgModbusCmd):
+    ConfigTsunInv1
+    m = MemoryStream(b'')
+    m.id_str = b"R170000000000001" 
+    m.state = State.up
+
+    c = m.createClientStream(MsgModbusCmd)
+    
+    m.db.stat['proxy']['Unknown_Ctrl'] = 0
+    m.db.stat['proxy']['Modbus_Command'] = 0
+    m.db.stat['proxy']['Invalid_Msg_Format'] = 0
+    c.read()         # read complete msg, and dispatch msg
+    assert not c.header_valid  # must be invalid, since msg was handled and buffer flushed
+    assert c.msg_count == 1
+    assert c.id_str == b"R170000000000001" 
+    assert c.unique_id == 'R170000000000001'
+    assert int(c.ctrl)==112
+    assert c.msg_id==119
+    assert c.header_len==23
+    assert c.data_len==13
+    assert c._forward_buffer==b''
+    assert c._send_buffer==b''
+    assert m.id_str == b"R170000000000001" 
+    assert m._forward_buffer==b''
+    assert m._send_buffer==b''
+    assert m.writer.sent_pdu == MsgModbusCmd
+    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
+    assert m.db.stat['proxy']['Modbus_Command'] == 1
+    assert m.db.stat['proxy']['Invalid_Msg_Format'] == 0
+    m.close()
+
+def test_msg_modbus_req2(ConfigTsunInv1, MsgModbusCmd):
+    ConfigTsunInv1
+    m = MemoryStream(b'')
+    m.id_str = b"R170000000000001" 
+
+    c = m.createClientStream(MsgModbusCmd)
+    
+    m.db.stat['proxy']['Unknown_Ctrl'] = 0
+    m.db.stat['proxy']['Modbus_Command'] = 0
+    m.db.stat['proxy']['Invalid_Msg_Format'] = 0
+    c.read()         # read complete msg, and dispatch msg
+    assert not c.header_valid  # must be invalid, since msg was handled and buffer flushed
+    assert c.msg_count == 1
+    assert c.id_str == b"R170000000000001" 
+    assert c.unique_id == 'R170000000000001'
+    assert int(c.ctrl)==112
+    assert c.msg_id==119
+    assert c.header_len==23
+    assert c.data_len==13
+    assert c._forward_buffer==b''
+    assert c._send_buffer==b''
+    assert m.id_str == b"R170000000000001" 
+    assert m._forward_buffer==b''
+    assert m._send_buffer==b''
+    assert m.writer.sent_pdu == b''
+    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
+    assert m.db.stat['proxy']['Modbus_Command'] == 1
+    assert m.db.stat['proxy']['Invalid_Msg_Format'] == 0
+    m.close()
+
+def test_msg_modbus_req3(ConfigTsunInv1, MsgModbusCmdCrcErr):
+    ConfigTsunInv1
+    m = MemoryStream(b'')
+    m.id_str = b"R170000000000001" 
+    c = m.createClientStream(MsgModbusCmdCrcErr)
+    
+    m.db.stat['proxy']['Unknown_Ctrl'] = 0
+    m.db.stat['proxy']['Modbus_Command'] = 0
+    m.db.stat['proxy']['Invalid_Msg_Format'] = 0
+    c.read()         # read complete msg, and dispatch msg
+    assert not c.header_valid  # must be invalid, since msg was handled and buffer flushed
+    assert c.msg_count == 1
+    assert c.id_str == b"R170000000000001" 
+    assert c.unique_id == 'R170000000000001'
+    assert int(c.ctrl)==112
+    assert c.msg_id==119
+    assert c.header_len==23
+    assert c.data_len==13
+    assert c._forward_buffer==b''
+    assert c._send_buffer==b''
+    assert m._forward_buffer==b''
+    assert m._send_buffer==b''
+    assert m.writer.sent_pdu ==b''
+    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
+    assert m.db.stat['proxy']['Modbus_Command'] == 0
+    assert m.db.stat['proxy']['Invalid_Msg_Format'] == 1
+    m.close()
+
+def test_msg_modbus_rsp1(ConfigTsunInv1, MsgModbusRsp):
+    '''Modbus response without a valid Modbus request must be dropped'''
+    ConfigTsunInv1
+    m = MemoryStream(MsgModbusRsp)
+    m.db.stat['proxy']['Unknown_Ctrl'] = 0
+    m.db.stat['proxy']['Modbus_Command'] = 0
+    m.read()         # read complete msg, and dispatch msg
+    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
+    assert m.msg_count == 1
+    assert m.id_str == b"R170000000000001" 
+    assert m.unique_id == 'R170000000000001'
+    assert int(m.ctrl)==145
+    assert m.msg_id==119
+    assert m.header_len==23
+    assert m.data_len==13
+    assert m._forward_buffer==b''
+    assert m._send_buffer==b''
+    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
+    assert m.db.stat['proxy']['Modbus_Command'] == 0
+    m.close()
+
+def test_msg_modbus_cloud_rsp(ConfigTsunInv1, MsgModbusRsp):
+    '''Modbus response from TSUN without a valid Modbus request must be dropped'''
+    ConfigTsunInv1
+    m = MemoryStream(MsgModbusRsp, (0,), False)
+    m.db.stat['proxy']['Unknown_Ctrl'] = 0
+    m.db.stat['proxy']['Unknown_Msg'] = 0
+    m.db.stat['proxy']['Modbus_Command'] = 0
+    m.read()         # read complete msg, and dispatch msg
+    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
+    assert m.msg_count == 1
+    assert m.id_str == b"R170000000000001" 
+    assert m.unique_id == 'R170000000000001'
+    assert int(m.ctrl)==145
+    assert m.msg_id==119
+    assert m.header_len==23
+    assert m.data_len==13
+    assert m._forward_buffer==b''
+    assert m._send_buffer==b''
+    assert m.db.stat['proxy']['Unknown_Msg'] == 1
+    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
+    assert m.db.stat['proxy']['Modbus_Command'] == 0
+    m.close()
+
+def test_msg_modbus_rsp2(ConfigTsunInv1, MsgModbusResp20):
+    '''Modbus response with a valid Modbus request must be forwarded'''
+    ConfigTsunInv1
+    m = MemoryStream(MsgModbusResp20)
+    m.append_msg(MsgModbusResp20)
+
+    m.mb.rsp_handler = m.msg_forward
+    m.mb.last_addr = 1
+    m.mb.last_fcode = 3
+    m.mb.last_len = 20
+    m.mb.last_reg = 0x3008
+    m.mb.req_pend = True
+    m.mb.err = 0
+
+    assert m.db.db == {}
+    m.new_data['inverter'] = False
+
+    m.read()         # read complete msg, and dispatch msg
+    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
+    assert m.mb.err == 0
+    assert m.msg_count == 1
+    assert m._forward_buffer==MsgModbusResp20
+    assert m._send_buffer==b''
+    assert m.db.db == {'inverter': {'Version': 'V5.1.09', 'Rated_Power': 300}, 'grid': {'Voltage': 225.9, 'Current': 0.41, 'Frequency': 49.99, 'Output_Power': 94.8}, 'env': {'Inverter_Temp': 22}, 'input': {'pv1': {'Voltage': 0.8, 'Current': 0.0, 'Power': 0.0}, 'pv2': {'Voltage': 34.5, 'Current': 2.89, 'Power': 99.8}, 'pv3': {'Voltage': 0.0, 'Current': 0.0, 'Power': 0.0}, 'pv4': {'Voltage': 0.0, 'Current': 0.0, 'Power': 0.0}}}
+    assert m.db.get_db_value(Register.VERSION) == 'V5.1.09'
+    assert m.new_data['inverter'] == True
+
+    m.new_data['inverter'] = False    
+    m.mb.req_pend = True
+    m.read()         # read complete msg, and dispatch msg
+    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
+    assert m.mb.err == 0
+    assert m.msg_count == 2
+    assert m._forward_buffer==MsgModbusResp20
+    assert m._send_buffer==b''
+    assert m.db.db == {'inverter': {'Version': 'V5.1.09', 'Rated_Power': 300}, 'grid': {'Voltage': 225.9, 'Current': 0.41, 'Frequency': 49.99, 'Output_Power': 94.8}, 'env': {'Inverter_Temp': 22}, 'input': {'pv1': {'Voltage': 0.8, 'Current': 0.0, 'Power': 0.0}, 'pv2': {'Voltage': 34.5, 'Current': 2.89, 'Power': 99.8}, 'pv3': {'Voltage': 0.0, 'Current': 0.0, 'Power': 0.0}, 'pv4': {'Voltage': 0.0, 'Current': 0.0, 'Power': 0.0}}}
+    assert m.db.get_db_value(Register.VERSION) == 'V5.1.09'
+    assert m.new_data['inverter'] == False
+
+    m.close()
+
+def test_msg_modbus_rsp3(ConfigTsunInv1, MsgModbusResp20):
+    '''Modbus response with a valid Modbus request must be forwarded'''
+    ConfigTsunInv1
+    m = MemoryStream(MsgModbusResp20)
+    m.append_msg(MsgModbusResp20)
+
+    m.mb.rsp_handler = m.msg_forward
+    m.mb.last_addr = 1
+    m.mb.last_fcode = 3
+    m.mb.last_len = 20
+    m.mb.last_reg = 0x3008
+    m.mb.req_pend = True
+    m.mb.err = 0
+
+    assert m.db.db == {}
+    m.new_data['inverter'] = False
+
+    m.read()         # read complete msg, and dispatch msg
+    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
+    assert m.mb.err == 0
+    assert m.msg_count == 1
+    assert m._forward_buffer==MsgModbusResp20
+    assert m._send_buffer==b''
+    assert m.db.db == {'inverter': {'Version': 'V5.1.09', 'Rated_Power': 300}, 'grid': {'Voltage': 225.9, 'Current': 0.41, 'Frequency': 49.99, 'Output_Power': 94.8}, 'env': {'Inverter_Temp': 22}, 'input': {'pv1': {'Voltage': 0.8, 'Current': 0.0, 'Power': 0.0}, 'pv2': {'Voltage': 34.5, 'Current': 2.89, 'Power': 99.8}, 'pv3': {'Voltage': 0.0, 'Current': 0.0, 'Power': 0.0}, 'pv4': {'Voltage': 0.0, 'Current': 0.0, 'Power': 0.0}}}
+    assert m.db.get_db_value(Register.VERSION) == 'V5.1.09'
+    assert m.new_data['inverter'] == True
+    m.new_data['inverter'] = False
+    assert m.mb.req_pend == False
+
+    m.read()         # read complete msg, and dispatch msg
+    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
+    assert m.mb.err == 5
+    assert m.msg_count == 2
+    assert m._forward_buffer==MsgModbusResp20
+    assert m._send_buffer==b''
+    assert m.db.db == {'inverter': {'Version': 'V5.1.09', 'Rated_Power': 300}, 'grid': {'Voltage': 225.9, 'Current': 0.41, 'Frequency': 49.99, 'Output_Power': 94.8}, 'env': {'Inverter_Temp': 22}, 'input': {'pv1': {'Voltage': 0.8, 'Current': 0.0, 'Power': 0.0}, 'pv2': {'Voltage': 34.5, 'Current': 2.89, 'Power': 99.8}, 'pv3': {'Voltage': 0.0, 'Current': 0.0, 'Power': 0.0}, 'pv4': {'Voltage': 0.0, 'Current': 0.0, 'Power': 0.0}}}
+    assert m.db.get_db_value(Register.VERSION) == 'V5.1.09'
+    assert m.new_data['inverter'] == False
+
+    m.close()
+
+def test_msg_modbus_invalid(ConfigTsunInv1, MsgModbusInv):
+    ConfigTsunInv1
+    m = MemoryStream(MsgModbusInv, (0,), False)
+    m.db.stat['proxy']['Unknown_Ctrl'] = 0
+    m.db.stat['proxy']['Modbus_Command'] = 0
+    m.read()         # read complete msg, and dispatch msg
+    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
+    assert m.msg_count == 1
+    assert m.id_str == b"R170000000000001" 
+    assert m.unique_id == 'R170000000000001'
+    assert int(m.ctrl)==153
+    assert m.msg_id==119
+    assert m.header_len==23
+    assert m.data_len==13
+    assert m._forward_buffer==MsgModbusInv
+    assert m._send_buffer==b''
+    assert m.db.stat['proxy']['Unknown_Ctrl'] == 1
+    assert m.db.stat['proxy']['Modbus_Command'] == 0
+    m.close()
+
+def test_msg_modbus_fragment(ConfigTsunInv1, MsgModbusResp20):
+    ConfigTsunInv1
+    # receive more bytes than expected (7 bytes from the next msg)
+    m = MemoryStream(MsgModbusResp20+b'\x00\x00\x00\x45\x10\x52\x31', (0,))
+    m.db.stat['proxy']['Unknown_Ctrl'] = 0
+    m.db.stat['proxy']['Modbus_Command'] = 0
+    m.mb.rsp_handler = m.msg_forward
+    m.mb.last_addr = 1
+    m.mb.last_fcode = 3
+    m.mb.last_len = 20
+    m.mb.last_reg = 0x3008
+    m.mb.req_pend = True
+    m.mb.err = 0
+
+    m.read()         # read complete msg, and dispatch msg
+    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
+    assert m.msg_count == 1
+    assert m.id_str == b"R170000000000001" 
+    assert m.unique_id == 'R170000000000001'
+    assert int(m.ctrl) == 0x91
+    assert m.msg_id == 119
+    assert m.header_len == 23
+    assert m.data_len == 50
+    assert m._forward_buffer==MsgModbusResp20
+    assert m._send_buffer == b''
+    assert m.mb.err == 0
+    assert m.modbus_elms == 20-1  # register 0x300d is unknown, so one value can't be mapped
+    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
+    assert m.db.stat['proxy']['Modbus_Command'] == 0
+    m.close()
+
+@pytest.mark.asyncio
+async def test_msg_build_modbus_req(ConfigTsunInv1, MsgModbusCmd):
+    ConfigTsunInv1
+    m = MemoryStream(b'', (0,), True)
+    m.id_str = b"R170000000000001" 
+    await m.send_modbus_cmd(Modbus.WRITE_SINGLE_REG, 0x2008, 0, logging.DEBUG)
+    assert 0 == m.send_msg_ofs
+    assert m._forward_buffer == b''
+    assert m._send_buffer == b''
+    assert m.writer.sent_pdu == b''
+
+    m.state = State.up
+    await m.send_modbus_cmd(Modbus.WRITE_SINGLE_REG, 0x2008, 0, logging.DEBUG)
+    assert 0 == m.send_msg_ofs
+    assert m._forward_buffer == b''
+    assert m._send_buffer == b''
+    assert m.writer.sent_pdu == MsgModbusCmd
+
+    m.writer.sent_pdu = bytearray(0) # clear send buffer for next test    
+    m.test_exception_async_write = True
+    await m.send_modbus_cmd(Modbus.WRITE_SINGLE_REG, 0x2008, 0, logging.DEBUG)
+    assert 0 == m.send_msg_ofs
+    assert m._forward_buffer == b''
+    assert m._send_buffer == b''
+    assert m.writer.sent_pdu == b''
+    m.close()
+'''
+def test_zombie_conn(ConfigTsunInv1, MsgInverterInd):
+    ConfigTsunInv1
+    tracer.setLevel(logging.DEBUG)
+    start_val = MemoryStream._RefNo
+
+    m1 = MemoryStream(MsgInverterInd, (0,))
+    assert MemoryStream._RefNo == 1 + start_val
+    assert m1.RefNo == 1 + start_val
+    m2 = MemoryStream(MsgInverterInd, (0,))
+    assert MemoryStream._RefNo == 2 + start_val
+    assert m2.RefNo == 2 + start_val
+    m3 = MemoryStream(MsgInverterInd, (0,))
+    assert MemoryStream._RefNo == 3 + start_val
+    assert m3.RefNo == 3 + start_val
+    assert m1.state == m1.State.init
+    assert m2.state == m2.State.init
+    assert m3.state == m3.State.init
+    m1.read()         # read complete msg, and set unique_id
+    assert m1.state == m1.State.up
+    assert m2.state == m2.State.init
+    assert m3.state == m3.State.init
+    m2.read()         # read complete msg, and set unique_id
+    assert m1.state == m1.State.closed
+    assert m2.state == m2.State.up
+    assert m3.state == m3.State.init
+    m3.read()         # read complete msg, and set unique_id
+    assert m1.state == m1.State.closed
+    assert m2.state == m2.State.closed
+    assert m3.state == m3.State.up
+    m1.close()
+    m2.close()
+    m3.close()
+'''

app/tests/timestamp_old.yuml

@@ -0,0 +1,26 @@
+// {type:sequence}
+// {generate:true}
+
+[Inverter]ContactInd>[Proxy] 
+[Proxy]-[note: store Contact Info in proxy{bg:cornsilk}]
+[Proxy]ContactRsp (Ok).>[Inverter]
+
+[Inverter]getTimeReq>[Proxy]
+[Proxy]ContactInd>[Cloud]
+[Cloud]ContactRsp (Ok).>[Proxy]
+[Proxy]getTimeReq>[Cloud]
+[Cloud]TimeRsp (time).>[Proxy]
+[Proxy]TimeRsp (time).>[Inverter]
+[Inverter]-[note: set clock in inverter{bg:cornsilk}]
+
+[Inverter]DataInd (ts:=time)>[Proxy] 
+[Proxy]DataRsp>[Inverter] 
+[Proxy]DataInd (ts)>>[Cloud] 
+[Proxy]DataInd>>[MQTT-Broker] 
+[Cloud]DataRsp>>[Proxy]
+
+[Inverter]DataInd (ts:=time)>[Proxy] 
+[Proxy]DataRsp>[Inverter] 
+[Proxy]DataInd (ts)>>[Cloud] 
+[Proxy]DataInd>>[MQTT-Broker] 
+[Cloud]DataRsp>>[Proxy] 

docker-compose.yaml

@@ -1,6 +1,3 @@
-
-version: '3.0'
-
 services:
 #######  H O M E  -  A S S I S T A N T  ##### 
   home-assistant:
@@ -34,7 +31,7 @@ services:
     ports:
       - 8123:8123
     volumes:
-      - ${PROJECT_DIR}./homeassistant/config:/config
+      - ${PROJECT_DIR:-./}homeassistant/config:/config
       - /etc/localtime:/etc/localtime:ro
     healthcheck:
       test: curl --fail http://0.0.0.0:8123/auth/providers || exit 1
@@ -56,18 +53,18 @@ services:
     expose:
       - 1883
     volumes:
-      - ${PROJECT_DIR}./mosquitto/config:/mosquitto/config
+      - ${PROJECT_DIR:-./}mosquitto/config:/mosquitto/config
-      - ${PROJECT_DIR}./mosquitto/data:/mosquitto/data
+      - ${PROJECT_DIR:-./}mosquitto/data:/mosquitto/data
     networks:
-      outside:
+      - outside
-         ipv4_address: 172.28.1.5 # static IP required to receive mDNS traffic     
-    
 
+      
 
 #######  T S U N  -  P R O X Y  ######      
   tsun-proxy:
     container_name: tsun-proxy
     image: ghcr.io/s-allius/tsun-gen3-proxy:latest
+    # image: ghcr.io/s-allius/tsun-gen3-proxy:rc
     restart: unless-stopped
     depends_on:
       - mqtt
@@ -77,13 +74,18 @@ services:
       - GID=${GID:-1000}
     dns:
       - ${DNS1:-8.8.8.8}
-      - $(DNS2:-4.4.4.4}
+      - ${DNS2:-4.4.4.4}
     ports: 
       - 5005:5005
+      - 8127:8127
       - 10000:10000
     volumes:
-      - ${PROJECT_DIR}./tsun-proxy/log:/home/tsun-proxy/log 
+      - ${PROJECT_DIR:-./}tsun-proxy/log:/home/tsun-proxy/log 
-      - ${PROJECT_DIR}./tsun-proxy/config:/home/tsun-proxy/config 
+      - ${PROJECT_DIR:-./}tsun-proxy/config:/home/tsun-proxy/config 
+    healthcheck:
+      test: wget --no-verbose --tries=1 --spider  http://localhost:8127/-/healthy || exit 1
+      interval: 10s
+      timeout: 3s    
     networks:
       - outside
 
@@ -93,11 +95,4 @@ services:
 networks:
   outside:
     name: home-assistant
-    external: true
-    ipam:
-      driver: default
-      config:
-        - subnet: 172.28.1.0/26
-          ip_range: 172.28.1.32/27
-          gateway: 172.28.1.62          
           

system_tests/test_tcp_socket.py

@@ -224,7 +224,7 @@ def test_send_inv_data(ClientConnection, MsgTimeStampReq, MsgTimeStampResp, MsgI
         data = s.recv(1024)
     except TimeoutError:
         pass
-   # time.sleep(32.5)
+  #  time.sleep(32.5)
   #  assert data == MsgTimeStampResp
     try:
         s.sendall(MsgInvData)

system_tests/test_tcp_socket_v2.py

@@ -19,6 +19,9 @@ def get_inv_no() -> bytes:
 def get_invalid_sn():
     return b'R170000000000002'
 
+def correct_checksum(buf):
+    checksum = sum(buf[1:]) & 0xff
+    return checksum.to_bytes(length=1)
 
 @pytest.fixture
 def MsgContactInfo(): # Contact Info message
@@ -61,10 +64,11 @@ def MsgDataInd():
     msg += b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
     msg += b'\x00\x01\x12\x02\x12\x12\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
     msg += b'\x40\x10\x08\xd8\x00\x09\x13\x84\x00\x35\x00\x00\x02\x58\x00\xd8'
-    msg +=  b'\x01\x3f\x00\x17\x00\x4d\x01\x44\x00\x14\x00\x43\x01\x45\x00\x18'
+    msg += b'\x01\x3f\x00\x17\x00\x4d\x01\x44\x00\x14\x00\x43\x01\x45\x00\x18'
     msg += b'\x00\x52\x00\x12\x00\x01\x00\x00\x00\x7c\x00\x00\x24\xed\x00\x2c'
     msg += b'\x00\x00\x0b\x10\x00\x26\x00\x00\x0a\x0f\x00\x30\x00\x00\x0b\x76'
-    msg += b'\x00\x00\x00\x00\x06\x16\x00\x00\x00\x00\x55\xaa\x00\x01\x00\x00'
+
+    msg += b'\x00\x00\x00\x00\x06\x16\x00\x00\x00\x01\x55\xaa\x00\x01\x00\x00'
     msg += b'\x00\x00\x00\x00\xff\xff\x07\xd0\x00\x03\x04\x00\x04\x00\x04\x00'
     msg += b'\x04\x00\x00\x01\xff\xff\x00\x01\x00\x06\x00\x68\x00\x68\x05\x00'
     msg += b'\x09\xcd\x07\xb6\x13\x9c\x13\x24\x00\x01\x07\xae\x04\x0f\x00\x41'
@@ -73,7 +77,9 @@ def MsgDataInd():
     msg += b'\x04\x00\x00\x01\x13\x9c\x0f\xa0\x00\x4e\x00\x66\x03\xe8\x04\x00'
     msg += b'\x09\xce\x07\xa8\x13\x9c\x13\x26\x00\x00\x00\x00\x00\x00\x00\x00'
     msg += b'\x00\x00\x00\x00\x04\x00\x04\x00\x00\x00\x00\x00\xff\xff\x00\x00'
-    msg += b'\x00\x00\x00\x00\x24\x15'
+    msg += b'\x00\x00\x00\x00'
+    msg += correct_checksum(msg)
+    msg += b'\x15'
     return msg
 
 @pytest.fixture
@@ -83,6 +89,24 @@ def MsgDataResp(): # Contact Response message
     return msg
 
 
+@pytest.fixture
+def MsgInvalidInfo(): # Contact Info message wrong start byte
+    msg  = b'\x47\xd4\x00\x10\x41\x00\x01' +get_sn()  +b'\x02\xba\xd2\x00\x00'
+    msg += b'\x19\x00\x00\x00\x00\x00\x00\x00\x05\x3c\x78\x01\x64\x01\x4c\x53'
+    msg += b'\x57\x35\x42\x4c\x45\x5f\x31\x37\x5f\x30\x32\x42\x30\x5f\x31\x2e'
+    msg += b'\x30\x35\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
+    msg += b'\x00\x00\x00\x00\x00\x00\x40\x2a\x8f\x4f\x51\x54\x31\x39\x32\x2e'
+    msg += b'\x31\x36\x38\x2e\x38\x30\x2e\x34\x39\x00\x00\x00\x0f\x00\x01\xb0'
+    msg += b'\x02\x0f\x00\xff\x56\x31\x2e\x31\x2e\x30\x30\x2e\x30\x42\x00\x00'
+    msg += b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
+    msg += b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xfe\xfe\x00\x00'
+    msg += b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
+    msg += b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
+    msg += b'\x00\x00\x00\x00\x00\x00\x00\x41\x6c\x6c\x69\x75\x73\x2d\x48\x6f'
+    msg += b'\x6d\x65\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
+    msg += b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x3c'
+    msg += b'\x15'
+    return msg
 
 
 @pytest.fixture(scope="session")
@@ -147,4 +171,24 @@ def test_data_ind(ClientConnection,MsgDataInd, MsgDataResp):
     except TimeoutError:
         pass
     # time.sleep(2.5)
-    checkResponse(data, MsgDataResp)
+    checkResponse(data, MsgDataResp)
+
+def test_inavlid_msg(ClientConnection,MsgInvalidInfo,MsgContactInfo, MsgContactResp):
+    s = ClientConnection
+    try:
+        s.sendall(MsgInvalidInfo)
+        # time.sleep(2.5)
+        data = s.recv(1024)
+    except TimeoutError:
+        pass
+    # time.sleep(2.5)
+    try:
+        s.sendall(MsgContactInfo)
+        # time.sleep(2.5)
+        data = s.recv(1024)
+    except TimeoutError:
+        pass
+    # time.sleep(2.5)
+    checkResponse(data, MsgContactResp)
+
+