- Babel don't build new po file if only the pot creation-date was changed

- Improve Makefile
Update dependency pytest to v8.4.1 (#458 )
2025-06-21 10:24:12 +02:00 · 2025-06-21 10:13:08 +02:00 · 2025-06-20 10:51:02 +02:00 · 2025-06-20 10:46:35 +02:00 · 2025-06-15 22:43:00 +02:00 · 2025-06-12 22:16:56 +02:00
44 changed files with 1513 additions and 475 deletions
--- a/.coveragerc
+++ b/.coveragerc
@@ -1,2 +1,3 @@
 [run]
 branch = True
+omit = app/src/web/templates/*.html.j2
--- a/.github/workflows/python-app.yml
+++ b/.github/workflows/python-app.yml
@@ -5,7 +5,7 @@ name: Python application

 on:
  push:
-    branches: [ "main", "dev-*", "*/issue*" ]
+    branches: [ "main", "dev-*", "*/issue*", "releases/*" ]
    paths-ignore:
    - '**.md' # Do no build on *.md changes
    - '**.yml' # Do no build on *.yml changes
@@ -18,7 +18,7 @@ on:
    - '**.dockerfile' # Do no build on *.dockerfile changes
    - '**.sh' # Do no build on *.sh changes     
  pull_request:
-    branches: [ "main", "dev-*" ]
+    branches: [ "main", "dev-*", "releases/*" ]

 permissions:
  contents: read
--- a/.python-version
+++ b/.python-version
@@ -1 +1 @@
-3.13.2
+3.13.5
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,25 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0

 ## [unreleased]

+- Babel don't build new po file if only the pot creation-date was changed
+- Improve Makefile
+- Update dependency pytest-asyncio to v1
+
+## [0.14.1] - 2025-05-31
+
+- handle missing MQTT addon [#438](https://github.com/s-allius/tsun-gen3-proxy/issues/438)
+
+## [0.14.0] - 2025-05-29
+
+- add-on: bump python to version 3.12.10-r1
+- set no of pv modules for MS800 GEN3PLUS inverters
+- fix the paths to copy the config.example.toml file during proxy start
+- add MQTT topic `dcu_power` for setting output power on DCUs
+- Update ghcr.io/hassio-addons/base Docker tag to v17.2.5
+- fix a lot of pytest-asyncio problems in the unit tests  
+- Cleanup startup code for Quart and the Proxy
+- Redirect the hypercorn traces to a separate log-file
+- Configure the dashboard trace handler by the logging.ini file
 - Dashboard: add Notes page and table for important messages
 - Dashboard: add Log-File page
 - Dashboard: add Connection page
--- a/30
+++ b/30
@@ -1,27 +1,37 @@
-.PHONY: build babel clean addon-dev addon-debug addon-rc addon-rel debug dev preview rc rel check-docker-compose install
+.PHONY: help build babel clean addon-dev addon-debug addon-rc addon-rel debug dev preview rc rel check-docker-compose install

-babel:
+help: ## show help message
+	@awk 'BEGIN {FS = ":.*##"; printf "\nUsage:\n  make \033[36m\033[0m\n"} /^[$$()% a-zA-Z0-9_-]+:.*?##/ { printf "  \033[36m%-15s\033[0m %s\n", $$1, $$2 } /^##@/ { printf "\n\033[1m%s\033[0m\n", substr($$0, 5) } ' $(MAKEFILE_LIST)
+
+babel:            ## build language files
 	$(MAKE) -C app $@

 build:
 	$(MAKE) -C ha_addons $@ 

-clean:
+clean:             ## delete all built files
 	$(MAKE) -C app $@
 	$(MAKE) -C ha_addons $@ 

-debug dev preview rc rel:
+debug dev preview rc rel:  ## build docker container in <dev|debg|rc|rel> version
 	$(MAKE) -C app babel
 	$(MAKE) -C app $@

-addon-dev addon-debug addon-rc addon-rel:
+addon-dev addon-debug addon-rc addon-rel: ## build HA add-on in <dev|debg|rc|rel> version
 	$(MAKE) -C app babel
 	$(MAKE) -C ha_addons $(patsubst addon-%,%,$@)

-check-docker-compose:
+check-docker-compose: ## check the docker-compose file
 	docker-compose config -q

-install:
-	python3 -m pip install --upgrade pip
-	python3 -m pip install -r requirements.txt
-	python3 -m pip install -r requirements-test.txt
+PY_VER := $(shell cat .python-version)
+
+install:           ## install requirements into the pyenv and switch to proper venv
+	@pyenv local $(PY_VER) || { pyenv install $(PY_VER) && pyenv local $(PY_VER) || exit 1; }
+	@pyenv exec pip install --upgrade pip
+	@pyenv exec pip install -r requirements.txt
+	@pyenv exec pip install -r requirements-test.txt
+	pyenv exec python --version
+
+run:  ## run proxy locally out of the actual venv
+	pyenv exec python app/src/server.py -c /app/src/cnf
--- a/app/.version
+++ b/app/.version
@@ -1 +1 @@
-0.14.0
+0.15.0
--- a/app/Makefile
+++ b/app/Makefile
@@ -55,7 +55,7 @@ $(BABEL_TRANSLATIONS)/%.pot : $(SRC)/.babel.cfg $(BABEL_INPUT)

 $(BABEL_TRANSLATIONS)/%/LC_MESSAGES/messages.po : $(BABEL_TRANSLATIONS)/messages.pot
 	@mkdir -p $(@D)
-	@pybabel update  --init-missing -i $< -d $(BABEL_TRANSLATIONS) -l $*
+	@pybabel update  --init-missing --ignore-pot-creation-date -i $< -d $(BABEL_TRANSLATIONS) -l $*

 $(BABEL_TRANSLATIONS)/%/LC_MESSAGES/messages.mo : $(BABEL_TRANSLATIONS)/%/LC_MESSAGES/messages.po
 	@pybabel compile  -d $(BABEL_TRANSLATIONS) -l $*
--- a/app/requirements-test.txt
+++ b/app/requirements-test.txt
@@ -1,8 +1,8 @@
    flake8==7.2.0
-    pytest==8.3.5
-    pytest-asyncio==0.26.0
-    pytest-cov==6.1.1
+    pytest==8.4.1
+    pytest-asyncio==1.0.0
+    pytest-cov==6.2.1
    python-dotenv==1.1.0
    mock==5.2.0
-    coverage==7.8.0
+    coverage==7.9.1
    jinja2-cli==0.8.2
--- a/app/src/cnf/config.py
+++ b/app/src/cnf/config.py
@@ -162,7 +162,8 @@ class Config():
    )

    @classmethod
-    def init(cls, def_reader: ConfigIfc, log_path: str = '') -> None | str:
+    def init(cls, def_reader: ConfigIfc, log_path: str = '',
+             cnf_path: str = 'config') -> None | str:
        '''Initialise the Proxy-Config

 Copy the internal default config file into the config directory
@@ -173,12 +174,13 @@ and initialise the Config with the default configuration '''
        try:
            # make the default config transparaent by copying it
            # in the config.example file
-            logging.debug('Copy Default Config to config.example.toml')
+            logging.info(
+                f'Copy Default Config to {cnf_path}config.example.toml')

-            shutil.copy2("default_config.toml",
-                         "config/config.example.toml")
-        except Exception:
-            pass
+            shutil.copy2("cnf/default_config.toml",
+                         cnf_path + "config.example.toml")
+        except Exception as e:
+            logging.error(e)

        # read example config file as default configuration
        try:
--- a/app/src/gen3plus/infos_g3p.py
+++ b/app/src/gen3plus/infos_g3p.py
@@ -216,7 +216,7 @@ class InfosG3P(Infos):
        self.set_db_def_value(Register.MANUFACTURER, 'TSUN')
        self.set_db_def_value(Register.EQUIPMENT_MODEL, 'TSOL-MSxx00')
        self.set_db_def_value(Register.CHIP_TYPE, 'IGEN TECH')
-        self.set_db_def_value(Register.NO_INPUTS, 4)
+        self.set_db_def_value(Register.NO_INPUTS, 2)

    def __hide_topic(self, row: dict) -> bool:
        if 'dep' in row:
--- a/app/src/gen3plus/solarman_v5.py
+++ b/app/src/gen3plus/solarman_v5.py
@@ -247,6 +247,7 @@ class SolarmanBase(Message):
 class SolarmanV5(SolarmanBase):
    AT_CMD = 1
    MB_RTU_CMD = 2
+    DCU_CMD = 5
    AT_CMD_RSP = 8
    MB_CLIENT_DATA_UP = 30
    '''Data up time in client mode'''
@@ -532,6 +533,26 @@ class SolarmanV5(SolarmanBase):
        except Exception:
            self.ifc.tx_clear()

+    def send_dcu_cmd(self, pdu: bytearray):
+        if self.sensor_list != 0x3026:
+            logger.debug(f'[{self.node_id}] DCU CMD not allowed,'
+                         f' for sensor: {self.sensor_list:#04x}')
+            return
+
+        if self.state != State.up:
+            logger.warning(f'[{self.node_id}] ignore DCU CMD,'
+                           ' cause the state is not UP anymore')
+            return
+
+        self.inverter.forward_dcu_cmd_resp = False
+        self._build_header(0x4510)
+        self.ifc.tx_add(struct.pack('<BHLLL', self.DCU_CMD,
+                                    self.sensor_list, 0, 0, 0))
+        self.ifc.tx_add(pdu)
+        self._finish_send_msg()
+        self.ifc.tx_log(logging.INFO, f'Send DCU CMD :{self.addr}:')
+        self.ifc.tx_flush()
+
    def __forward_msg(self):
        self.forward(self.ifc.rx_peek(), self.header_len+self.data_len+2)

@@ -541,12 +562,17 @@ class SolarmanV5(SolarmanBase):
        rated = db.get_db_value(Register.RATED_POWER, 0)
        model = None
        if max_pow == 2000:
+            db.set_db_def_value(Register.NO_INPUTS, 4)
            if rated == 800 or rated == 600:
                model = f'TSOL-MS{max_pow}({rated})'
            else:
                model = f'TSOL-MS{max_pow}'
        elif max_pow == 1800 or max_pow == 1600:
+            db.set_db_def_value(Register.NO_INPUTS, 4)
            model = f'TSOL-MS{max_pow}'
+        elif max_pow <= 800:
+            model = f'TSOL-MS{max_pow}'
+
        if model:
            logger.info(f'Model: {model}')
            self.db.set_db_def_value(Register.EQUIPMENT_MODEL, model)
@@ -647,6 +673,10 @@ class SolarmanV5(SolarmanBase):
            self.inc_counter('AT_Command')
            self.inverter.forward_at_cmd_resp = True

+        if ftype == self.DCU_CMD:
+            self.inc_counter('DCU_Command')
+            self.inverter.forward_dcu_cmd_resp = True
+
        elif ftype == self.MB_RTU_CMD:
            rstream = self.ifc.remote.stream
            if rstream.mb.recv_req(data[15:],
@@ -670,6 +700,10 @@ class SolarmanV5(SolarmanBase):
            if self.inverter.forward_at_cmd_resp:
                return logging.INFO
            return logging.DEBUG
+        elif ftype == self.DCU_CMD:
+            if self.inverter.forward_dcu_cmd_resp:
+                return logging.INFO
+            return logging.DEBUG
        elif ftype == self.MB_RTU_CMD \
                and self.server_side:
            return self.mb.last_log_lvl
@@ -689,6 +723,16 @@ class SolarmanV5(SolarmanBase):
                logger.info(f'{key}: {data_json}')
                self.publish_mqtt(f'{Proxy.entity_prfx}{node_id}{key}', data_json)  # noqa: E501
                return
+
+        elif ftype == self.DCU_CMD:
+            if not self.inverter.forward_dcu_cmd_resp:
+                data_json = '+ok'
+                node_id = self.node_id
+                key = 'dcu_resp'
+                logger.info(f'{key}: {data_json}')
+                self.publish_mqtt(f'{Proxy.entity_prfx}{node_id}{key}', data_json)  # noqa: E501
+                return
+
        elif ftype == self.MB_RTU_CMD:
            self.__modbus_command_rsp(data)
            return
--- a/app/src/infos.py
+++ b/app/src/infos.py
@@ -44,6 +44,7 @@ class Register(Enum):
    MODBUS_COMMAND = 60
    AT_COMMAND_BLOCKED = 61
    CLOUD_CONN_CNT = 62
+    DCU_COMMAND = 63
    OUTPUT_POWER = 83
    RATED_POWER = 84
    INVERTER_TEMP = 85
@@ -625,6 +626,7 @@ class Infos:
        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': FMT_INT, 'name': 'Invalid Message Format', 'icon': 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': FMT_INT, 'name': 'AT Command',           'icon': 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': FMT_INT, 'name': 'AT Command Blocked',   'icon': COUNTER, 'ent_cat': 'diagnostic'}},  # noqa: E501
+        Register.DCU_COMMAND:        {'name': ['proxy', 'DCU_Command'],        'singleton': True,   'ha': {'dev': 'proxy', 'comp': 'sensor', 'dev_cla': None, 'stat_cla': None, 'id': 'dcu_cmd_',       'fmt': FMT_INT, 'name': 'DCU Command',          'icon': 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': FMT_INT, 'name': 'Modbus Command',       'icon': 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':FMT_FLOAT,'name': 'Grid Voltage'}},  # noqa: E501

--- a/app/src/logging.ini
+++ b/app/src/logging.ini
@@ -1,16 +1,15 @@
 [loggers]
-keys=root,tracer,mesg,conn,data,mqtt,asyncio
+keys=root,tracer,mesg,conn,data,mqtt,asyncio,hypercorn_access,hypercorn_error

 [handlers]
-keys=console_handler,file_handler_name1,file_handler_name2
+keys=console_handler,file_handler_name1,file_handler_name2,file_handler_name3,dashboard

 [formatters]
 keys=console_formatter,file_formatter

 [logger_root]
 level=DEBUG
-handlers=console_handler,file_handler_name1
-
+handlers=console_handler,file_handler_name1,dashboard

 [logger_conn]
 level=DEBUG
@@ -20,13 +19,13 @@ qualname=conn

 [logger_mqtt]
 level=INFO
-handlers=console_handler,file_handler_name1
+handlers=console_handler,file_handler_name1,dashboard
 propagate=0
 qualname=mqtt

 [logger_asyncio]
 level=INFO
-handlers=console_handler,file_handler_name1
+handlers=console_handler,file_handler_name1,dashboard
 propagate=0
 qualname=asyncio

@@ -49,6 +48,18 @@ handlers=file_handler_name2
 propagate=0
 qualname=tracer

+[logger_hypercorn_access]
+level=INFO
+handlers=file_handler_name3
+propagate=0
+qualname=hypercorn.access
+
+[logger_hypercorn_error]
+level=INFO
+handlers=file_handler_name1,dashboard
+propagate=0
+qualname=hypercorn.error
+
 [handler_console_handler]
 class=StreamHandler
 level=DEBUG
@@ -66,6 +77,16 @@ level=NOTSET
 formatter=file_formatter
 args=(handlers.log_path + 'trace.log', when:='midnight', backupCount:=handlers.log_backups)

+[handler_file_handler_name3]
+class=handlers.TimedRotatingFileHandler
+level=NOTSET
+formatter=file_formatter
+args=(handlers.log_path + 'access.log', when:='midnight', backupCount:=handlers.log_backups)
+
+[handler_dashboard]
+level=WARNING
+class=web.log_handler.LogHandler
+
 [formatter_console_formatter]
 format=%(asctime)s %(levelname)5s | %(name)4s | %(message)s
 datefmt=%Y-%m-%d %H:%M:%S
--- a/app/src/mqtt.py
+++ b/app/src/mqtt.py
@@ -2,6 +2,8 @@ import asyncio
 import logging
 import aiomqtt
 import traceback
+import struct
+import inspect

 from modbus import Modbus
 from messages import Message
@@ -27,14 +29,27 @@ class Mqtt(metaclass=Singleton):
        loop = asyncio.get_event_loop()
        self.task = loop.create_task(self.__loop())
        self.ha_restarts = 0
+        self.topic_defs = [
+            {'prefix': 'auto_conf_prefix', 'topic': '/status',
+             'fnc': self._ha_status, 'args': []},
+            {'prefix': 'entity_prefix', 'topic': '/+/rated_load',
+             'fnc': self._modbus_cmd,
+             'args': [Modbus.WRITE_SINGLE_REG, 1, 0x2008]},
+            {'prefix': 'entity_prefix', 'topic': '/+/out_coeff',
+             'fnc': self._out_coeff, 'args': []},
+            {'prefix': 'entity_prefix', 'topic': '/+/dcu_power',
+             'fnc': self._dcu_cmd, 'args': []},
+            {'prefix': 'entity_prefix', 'topic': '/+/modbus_read_regs',
+             'fnc': self._modbus_cmd, 'args': [Modbus.READ_REGS, 2]},
+            {'prefix': 'entity_prefix', 'topic': '/+/modbus_read_inputs',
+             'fnc': self._modbus_cmd, 'args': [Modbus.READ_INPUTS, 2]},
+            {'prefix': 'entity_prefix', 'topic': '/+/at_cmd',
+             'fnc': self._at_cmd, 'args': []},
+        ]

        ha = Config.get('ha')
-        self.ha_status_topic = f"{ha['auto_conf_prefix']}/status"
-        self.mb_rated_topic = f"{ha['entity_prefix']}/+/rated_load"
-        self.mb_out_coeff_topic = f"{ha['entity_prefix']}/+/out_coeff"
-        self.mb_reads_topic = f"{ha['entity_prefix']}/+/modbus_read_regs"
-        self.mb_inputs_topic = f"{ha['entity_prefix']}/+/modbus_read_inputs"
-        self.mb_at_cmd_topic = f"{ha['entity_prefix']}/+/at_cmd"
+        for entry in self.topic_defs:
+            entry['full_topic'] = f"{ha[entry['prefix']]}{entry['topic']}"

    @property
    def ha_restarts(self):
@@ -75,19 +90,7 @@ class Mqtt(metaclass=Singleton):
            try:
                async with self.__client:
                    logger_mqtt.info('MQTT broker connection established')
-                    self.ctime = datetime.now()
-                    self.published = 0
-                    self.received = 0
-
-                    if self.__cb_mqtt_is_up:
-                        await self.__cb_mqtt_is_up()
-
-                    await self.__client.subscribe(self.ha_status_topic)
-                    await self.__client.subscribe(self.mb_rated_topic)
-                    await self.__client.subscribe(self.mb_out_coeff_topic)
-                    await self.__client.subscribe(self.mb_reads_topic)
-                    await self.__client.subscribe(self.mb_inputs_topic)
-                    await self.__client.subscribe(self.mb_at_cmd_topic)
+                    await self._init_new_conn()

                    async for message in self.__client.messages:
                        await self.dispatch_msg(message)
@@ -117,47 +120,51 @@ class Mqtt(metaclass=Singleton):
                    f"Exception:\n"
                    f"{traceback.format_exc()}")

+    async def _init_new_conn(self):
+        self.ctime = datetime.now()
+        self.published = 0
+        self.received = 0
+        if self.__cb_mqtt_is_up:
+            await self.__cb_mqtt_is_up()
+        for entry in self.topic_defs:
+            await self.__client.subscribe(entry['full_topic'])
+
    async def dispatch_msg(self, message):
        self.received += 1

-        if message.topic.matches(self.ha_status_topic):
-            status = message.payload.decode("UTF-8")
-            logger_mqtt.info('Home-Assistant Status:'
-                             f' {status}')
-            if status == 'online':
-                self.ha_restarts += 1
+        for entry in self.topic_defs:
+            if message.topic.matches(entry['full_topic']) \
+               and 'fnc' in entry:
+                fnc = entry['fnc']
+
+                if inspect.iscoroutinefunction(fnc):
+                    await entry['fnc'](message, *entry['args'])
+                elif callable(fnc):
+                    entry['fnc'](message, *entry['args'])
+
+    async def _ha_status(self, message):
+        status = message.payload.decode("UTF-8")
+        logger_mqtt.info('Home-Assistant Status:'
+                         f' {status}')
+        if status == 'online':
+            self.ha_restarts += 1
+            if self.__cb_mqtt_is_up:
                await self.__cb_mqtt_is_up()

-        if message.topic.matches(self.mb_rated_topic):
-            await self.modbus_cmd(message,
-                                  Modbus.WRITE_SINGLE_REG,
-                                  1, 0x2008)
-
-        if message.topic.matches(self.mb_out_coeff_topic):
-            payload = message.payload.decode("UTF-8")
-            try:
-                val = round(float(payload) * 1024/100)
-                if val < 0 or val > 1024:
-                    logger_mqtt.error('out_coeff: value must be in'
-                                      'the range 0..100,'
-                                      f' got: {payload}')
-                else:
-                    await self.modbus_cmd(message,
-                                          Modbus.WRITE_SINGLE_REG,
-                                          0, 0x202c, val)
-            except Exception:
-                pass
-
-        if message.topic.matches(self.mb_reads_topic):
-            await self.modbus_cmd(message,
-                                  Modbus.READ_REGS, 2)
-
-        if message.topic.matches(self.mb_inputs_topic):
-            await self.modbus_cmd(message,
-                                  Modbus.READ_INPUTS, 2)
-
-        if message.topic.matches(self.mb_at_cmd_topic):
-            await self.at_cmd(message)
+    async def _out_coeff(self, message):
+        payload = message.payload.decode("UTF-8")
+        try:
+            val = round(float(payload) * 1024/100)
+            if val < 0 or val > 1024:
+                logger_mqtt.error('out_coeff: value must be in'
+                                  'the range 0..100,'
+                                  f' got: {payload}')
+            else:
+                await self._modbus_cmd(message,
+                                       Modbus.WRITE_SINGLE_REG,
+                                       0, 0x202c, val)
+        except Exception:
+            pass

    def each_inverter(self, message, func_name: str):
        topic = str(message.topic)
@@ -175,7 +182,7 @@ class Mqtt(metaclass=Singleton):
        else:
            logger_mqtt.warning(f'Node_id: {node_id} not found')

-    async def modbus_cmd(self, message, func, params=0, addr=0, val=0):
+    async def _modbus_cmd(self, message, func, params=0, addr=0, val=0):
        payload = message.payload.decode("UTF-8")
        for fnc in self.each_inverter(message, "send_modbus_cmd"):
            res = payload.split(',')
@@ -190,7 +197,22 @@ class Mqtt(metaclass=Singleton):
                val = int(res[1])  # lenght
            await fnc(func, addr, val, logging.INFO)

-    async def at_cmd(self, message):
+    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)
+
+    def _dcu_cmd(self, message):
+        payload = message.payload.decode("UTF-8")
+        try:
+            val = round(float(payload) * 10)
+            if val < 1000 or val > 8000:
+                logger_mqtt.error('dcu_power: value must be in'
+                                  'the range 100..800,'
+                                  f' got: {payload}')
+            else:
+                pdu = struct.pack('>BBBBBBH', 1, 1, 6, 1, 0, 1, val)
+                for fnc in self.each_inverter(message, "send_dcu_cmd"):
+                    fnc(pdu)
+        except Exception:
+            pass
--- a/app/src/scheduler.py
+++ b/app/src/scheduler.py
@@ -12,7 +12,7 @@ class Schedule:
    count = 0

    @classmethod
-    def start(cls) -> None:
+    def start(cls) -> None:    # pragma: no cover
        '''Start the scheduler and schedule the tasks (cron jobs)'''
        logging.debug("Scheduler init")
        cls.mqtt = Mqtt(None)
@@ -20,7 +20,7 @@ class Schedule:
        crontab('0 0 * * *', func=cls.atmidnight, start=True)

    @classmethod
-    async def atmidnight(cls) -> None:
+    async def atmidnight(cls) -> None:    # pragma: no cover
        '''Clear daily counters at midnight'''
        logging.info("Clear daily counters at midnight")

--- a/app/src/server.py
+++ b/app/src/server.py
@@ -1,26 +1,162 @@
 import logging
-import asyncio
 import logging.handlers
+from logging import config  # noqa F401
+import asyncio
+from asyncio import StreamReader, StreamWriter
 import os
 import argparse
-from asyncio import StreamReader, StreamWriter
 from quart import Quart, Response
-from logging import config  # noqa F401
-from proxy import Proxy
-from inverter_ifc import InverterIfc
-from gen3.inverter_g3 import InverterG3
-from gen3plus.inverter_g3p import InverterG3P
-from scheduler import Schedule
+
 from cnf.config import Config
 from cnf.config_read_env import ConfigReadEnv
 from cnf.config_read_toml import ConfigReadToml
 from cnf.config_read_json import ConfigReadJson
 from web import Web
 from web.wrapper import url_for
+from proxy import Proxy
+from inverter_ifc import InverterIfc
+from gen3.inverter_g3 import InverterG3
+from gen3plus.inverter_g3p import InverterG3P
+from scheduler import Schedule

 from modbus_tcp import ModbusTcp


+class Server():
+    serv_name = ''
+    version = ''
+    src_dir = ''
+
+    ####
+    # The following default values are used for the unit tests only, since
+    # `Server.parse_args()' will not be called during test setup.
+    # Ofcorse, we can call `Server.parse_args()' in a test case explicitly
+    # to overwrite this values
+    config_path = './config/'
+    json_config = ''
+    toml_config = ''
+    trans_path = '../translations/'
+    rel_urls = False
+    log_path = './log/'
+    log_backups = 0
+    log_level = None
+
+    def __init__(self, app, parse_args: bool):
+        ''' Applikation Setup
+
+    1. Read cli arguments
+    2. Init the logging system by the ini file
+    3. Log the config parms
+    4. Set the log-levels
+    5. Read the build the config for the app
+    '''
+        self.serv_name = os.getenv('SERVICE_NAME', 'proxy')
+        self.version = os.getenv('VERSION', 'unknown')
+        self.src_dir = os.path.dirname(__file__) + '/'
+        if parse_args:   # pragma: no cover
+            self.parse_args(None)
+        self.init_logging_system()
+        self.build_config()
+
+        @app.context_processor
+        def utility_processor():
+            return dict(version=self.version)
+
+    def parse_args(self, arg_list: list[str] | None):
+        parser = argparse.ArgumentParser()
+        parser.add_argument('-c', '--config_path', type=str,
+                            default='./config/',
+                            help='set path for the configuration files')
+        parser.add_argument('-j', '--json_config', type=str,
+                            help='read user config from json-file')
+        parser.add_argument('-t', '--toml_config', type=str,
+                            help='read user config from toml-file')
+        parser.add_argument('-l', '--log_path', type=str,
+                            default='./log/',
+                            help='set path for the logging files')
+        parser.add_argument('-b', '--log_backups', type=int,
+                            default=0,
+                            help='set max number of daily log-files')
+        parser.add_argument('-tr', '--trans_path', type=str,
+                            default='../translations/',
+                            help='set path for the translations files')
+        parser.add_argument('-r', '--rel_urls', action="store_true",
+                            help='use relative dashboard urls')
+        args = parser.parse_args(arg_list)
+
+        self.config_path = args.config_path
+        self.json_config = args.json_config
+        self.toml_config = args.toml_config
+        self.trans_path = args.trans_path
+        self.rel_urls = args.rel_urls
+        self.log_path = args.log_path
+        self.log_backups = args.log_backups
+
+    def init_logging_system(self):
+        setattr(logging.handlers, "log_path", self.log_path)
+        setattr(logging.handlers, "log_backups", self.log_backups)
+        os.makedirs(self.log_path, exist_ok=True)
+
+        logging.config.fileConfig(self.src_dir + 'logging.ini')
+
+        logging.info(
+            f'Server "{self.serv_name} - {self.version}" will be started')
+        logging.info(f'current dir: {os.getcwd()}')
+        logging.info(f"config_path: {self.config_path}")
+        logging.info(f"json_config: {self.json_config}")
+        logging.info(f"toml_config: {self.toml_config}")
+        logging.info(f"trans_path:  {self.trans_path}")
+        logging.info(f"rel_urls:    {self.rel_urls}")
+        logging.info(f"log_path:    {self.log_path}")
+        if self.log_backups == 0:
+            logging.info("log_backups: unlimited")
+        else:
+            logging.info(f"log_backups: {self.log_backups} days")
+        self.log_level = self.get_log_level()
+        logging.info('******')
+        if self.log_level:
+            # set lowest-severity for 'root', 'msg', 'conn' and 'data' logger
+            logging.getLogger().setLevel(self.log_level)
+            logging.getLogger('msg').setLevel(self.log_level)
+            logging.getLogger('conn').setLevel(self.log_level)
+            logging.getLogger('data').setLevel(self.log_level)
+            logging.getLogger('tracer').setLevel(self.log_level)
+            logging.getLogger('asyncio').setLevel(self.log_level)
+            # logging.getLogger('mqtt').setLevel(self.log_level)
+
+    def build_config(self):
+        # read config file
+        Config.init(ConfigReadToml(self.src_dir + "cnf/default_config.toml"),
+                    log_path=self.log_path,
+                    cnf_path=self.config_path)
+        ConfigReadEnv()
+        ConfigReadJson(self.config_path + "config.json")
+        ConfigReadToml(self.config_path + "config.toml")
+        ConfigReadJson(self.json_config)
+        ConfigReadToml(self.toml_config)
+        config_err = Config.get_error()
+
+        if config_err is not None:
+            logging.info(f'config_err: {config_err}')
+            return
+
+        logging.info('******')
+
+    def get_log_level(self) -> int | None:
+        '''checks if LOG_LVL is set in the environment and returns the
+        corresponding logging.LOG_LEVEL'''
+        switch = {
+            'DEBUG': logging.DEBUG,
+            'WARN': logging.WARNING,
+            'INFO': logging.INFO,
+            'ERROR': logging.ERROR,
+        }
+        log_lvl = os.getenv('LOG_LVL', None)
+        logging.info(f"LOG_LVL    : {log_lvl}")
+
+        return switch.get(log_lvl, None)
+
+
 class ProxyState:
    _is_up = False

@@ -33,11 +169,48 @@ class ProxyState:
        ProxyState._is_up = value


+class HypercornLogHndl:
+    access_hndl = []
+    error_hndl = []
+    must_fix = False
+    HYPERC_ERR = 'hypercorn.error'
+    HYPERC_ACC = 'hypercorn.access'
+
+    @classmethod
+    def save(cls):
+        cls.access_hndl = logging.getLogger(
+            cls.HYPERC_ACC).handlers
+        cls.error_hndl = logging.getLogger(
+            cls.HYPERC_ERR).handlers
+        cls.must_fix = True
+
+    @classmethod
+    def restore(cls):
+        if not cls.must_fix:
+            return
+        cls.must_fix = False
+        access_hndl = logging.getLogger(
+            cls.HYPERC_ACC).handlers
+        if access_hndl != cls.access_hndl:
+            print(' * Fix hypercorn.access setting')
+            logging.getLogger(
+                cls.HYPERC_ACC).handlers = cls.access_hndl
+
+        error_hndl = logging.getLogger(
+            cls.HYPERC_ERR).handlers
+        if error_hndl != cls.error_hndl:
+            print(' * Fix hypercorn.error setting')
+            logging.getLogger(
+                cls.HYPERC_ERR).handlers = cls.error_hndl
+
+
 app = Quart(__name__,
            template_folder='web/templates',
            static_folder='web/static')
 app.secret_key = 'JKLdks.dajlKKKdladkflKwolafallsdfl'
 app.jinja_env.globals.update(url_for=url_for)
+server = Server(app, __name__ == "__main__")
+Web(app, server.trans_path, server.rel_urls)


@app.route('/-/ready')
@@ -67,13 +240,36 @@ async def healthy():
    return Response(status=200, response="I'm fine")


-async def handle_client(reader: StreamReader, writer: StreamWriter, inv_class):
+async def handle_client(reader: StreamReader,
+                        writer: StreamWriter,
+                        inv_class):    # pragma: no cover
    '''Handles a new incoming connection and starts an async loop'''

    with inv_class(reader, writer) as inv:
        await inv.local.ifc.server_loop()


+@app.before_serving
+async def startup_app():    # pragma: no cover
+    HypercornLogHndl.save()
+    loop = asyncio.get_event_loop()
+    Proxy.class_init()
+    Schedule.start()
+    ModbusTcp(loop)
+
+    for inv_class, port in [(InverterG3, 5005), (InverterG3P, 10000)]:
+        logging.info(f'listen on port: {port} for inverters')
+        loop.create_task(asyncio.start_server(lambda r, w, i=inv_class:
+                                              handle_client(r, w, i),
+                                              '0.0.0.0', port))
+    ProxyState.set_up(True)
+
+
+@app.before_request
+async def startup_request():
+    HypercornLogHndl.restore()
+
+
@app.after_serving
 async def handle_shutdown():   # pragma: no cover
    '''Close all TCP connections and stop the event loop'''
@@ -90,136 +286,15 @@ async def handle_shutdown():   # pragma: no cover

    logging.info('Proxy disconnecting done')

-    #
-    # now cancel all remaining (pending) tasks
-    #
-    for task in asyncio.all_tasks():
-        if task == asyncio.current_task():
-            continue
-        task.cancel()
-    logging.info('Proxy cancelling done')
-
    await Proxy.class_close(loop)


-def get_log_level() -> int | None:
-    '''checks if LOG_LVL is set in the environment and returns the
-    corresponding logging.LOG_LEVEL'''
-    switch = {
-        'DEBUG': logging.DEBUG,
-        'WARN': logging.WARNING,
-        'INFO': logging.INFO,
-        'ERROR': logging.ERROR,
-    }
-    log_level = os.getenv('LOG_LVL', None)
-    logging.info(f"LOG_LVL    : {log_level}")
+if __name__ == "__main__":  # pragma: no cover

-    return switch.get(log_level, None)
-
-
-def main():   # pragma: no cover
-    parser = argparse.ArgumentParser()
-    parser.add_argument('-c', '--config_path', type=str,
-                        default='./config/',
-                        help='set path for the configuration files')
-    parser.add_argument('-j', '--json_config', type=str,
-                        help='read user config from json-file')
-    parser.add_argument('-t', '--toml_config', type=str,
-                        help='read user config from toml-file')
-    parser.add_argument('-l', '--log_path', type=str,
-                        default='./log/',
-                        help='set path for the logging files')
-    parser.add_argument('-b', '--log_backups', type=int,
-                        default=0,
-                        help='set max number of daily log-files')
-    parser.add_argument('-tr', '--trans_path', type=str,
-                        default='../translations/',
-                        help='set path for the translations files')
-    parser.add_argument('-r', '--rel_urls', type=bool,
-                        default=False,
-                        help='use relative dashboard urls')
-    args = parser.parse_args()
-    #
-    # Setup our daily, rotating logger
-    #
-    serv_name = os.getenv('SERVICE_NAME', 'proxy')
-    version = os.getenv('VERSION', 'unknown')
-
-    @app.context_processor
-    def utility_processor():
-        return dict(version=version)
-
-    setattr(logging.handlers, "log_path", args.log_path)
-    setattr(logging.handlers, "log_backups", args.log_backups)
-    os.makedirs(args.log_path, exist_ok=True)
-
-    src_dir = os.path.dirname(__file__) + '/'
-    logging.config.fileConfig(src_dir + 'logging.ini')
-    logging.info(f'Server "{serv_name} - {version}" will be started')
-    logging.info(f'current dir: {os.getcwd()}')
-    logging.info(f"config_path: {args.config_path}")
-    logging.info(f"json_config: {args.json_config}")
-    logging.info(f"toml_config: {args.toml_config}")
-    logging.info(f"trans_path:  {args.trans_path}")
-    logging.info(f"rel_urls:    {args.rel_urls}")
-    logging.info(f"log_path:    {args.log_path}")
-    if args.log_backups == 0:
-        logging.info("log_backups: unlimited")
-    else:
-        logging.info(f"log_backups: {args.log_backups} days")
-    log_level = get_log_level()
-    logging.info('******')
-    if log_level:
-        # set lowest-severity for 'root', 'msg', 'conn' and 'data' logger
-        logging.getLogger().setLevel(log_level)
-        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)
-
-    loop = asyncio.new_event_loop()
-    asyncio.set_event_loop(loop)
-
-    # read config file
-    Config.init(ConfigReadToml(src_dir + "cnf/default_config.toml"),
-                log_path=args.log_path)
-    ConfigReadEnv()
-    ConfigReadJson(args.config_path + "config.json")
-    ConfigReadToml(args.config_path + "config.toml")
-    ConfigReadJson(args.json_config)
-    ConfigReadToml(args.toml_config)
-    config_err = Config.get_error()
-
-    if config_err is not None:
-        logging.info(f'config_err: {config_err}')
-        return
-
-    logging.info('******')
-
-    Proxy.class_init()
-    Schedule.start()
-    ModbusTcp(loop)
-    Web(app, args.trans_path, args.rel_urls)
-
-    #
-    # 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!
-    #
-    for inv_class, port in [(InverterG3, 5005), (InverterG3P, 10000)]:
-        logging.info(f'listen on port: {port} for inverters')
-        loop.create_task(asyncio.start_server(lambda r, w, i=inv_class:
-                                              handle_client(r, w, i),
-                                              '0.0.0.0', port))
-
-    loop.set_debug(log_level == logging.DEBUG)
    try:
-        ProxyState.set_up(True)
        logging.info("Start Quart")
-        app.run(host='0.0.0.0', port=8127, use_reloader=False, loop=loop,
-                debug=log_level == logging.DEBUG)
+        app.run(host='0.0.0.0', port=8127, use_reloader=False,
+                debug=server.log_level == logging.DEBUG)
        logging.info("Quart stopped")

    except KeyboardInterrupt:
@@ -228,10 +303,4 @@ def main():   # pragma: no cover
        logging.info("Quart cancelled")

    finally:
-        logging.debug('Close event loop')
-        loop.close()
-        logging.info(f'Finally, exit Server "{serv_name}"')
-
-
-if __name__ == "__main__":  # pragma: no cover
-    main()
+        logging.info(f'Finally, exit Server "{server.serv_name}"')
--- a/app/src/web/init.py
+++ b/app/src/web/init.py
@@ -7,8 +7,6 @@ Usage:
 from quart import Quart, Blueprint
 from quart_babel import Babel
 from utils import load_modules
-from .log_handler import LogHandler
-import logging

 web = Blueprint('web', __name__)

@@ -32,8 +30,3 @@ class Web:
            locale_selector=get_locale,
            timezone_selector=get_tz,
            default_translation_directories=translation_directories)
-
-        h = LogHandler()
-        logging.getLogger().addHandler(h)
-        for name in logging.root.manager.loggerDict:
-            logging.getLogger(name).addHandler(h)
--- a/app/src/web/conn_table.py
+++ b/app/src/web/conn_table.py
@@ -10,39 +10,40 @@ from .log_handler import LogHandler
 def _get_device_icon(client_mode: bool):
    '''returns the icon for the device conntection'''
    if client_mode:
-        return 'fa-download fa-rotate-180'
+        return 'fa-download fa-rotate-180', 'Server Mode'

-    return 'fa-upload fa-rotate-180'
+    return 'fa-upload fa-rotate-180', 'Client Mode'


 def _get_cloud_icon(emu_mode: bool):
    '''returns the icon for the cloud conntection'''
    if emu_mode:
-        return 'fa-cloud-arrow-up-alt'
+        return 'fa-cloud-arrow-up-alt', 'Emu Mode'

-    return 'fa-cloud'
+    return 'fa-cloud', 'Proxy Mode'


 def _get_row(inv: InverterBase):
    '''build one row for the connection table'''
    client_mode = inv.client_mode
    inv_serial = inv.local.stream.inv_serial
-    icon1 = _get_device_icon(client_mode)
+    icon1, descr1 = _get_device_icon(client_mode)
    ip1, port1 = inv.addr
    icon2 = ''
+    descr2 = ''
    ip2 = '--'
    port2 = '--'

    if inv.remote.ifc:
        ip2, port2 = inv.remote.ifc.r_addr
-        icon2 = _get_cloud_icon(client_mode)
+        icon2, descr2 = _get_cloud_icon(client_mode)

    row = []
-    row.append(f'<i class="fa {icon1}"></i> {ip1}:{port1}')
-    row.append(f'<i class="fa {icon1}"></i> {ip1}')
+    row.append(f'<i class="fa {icon1}" title="{_(descr1)}"></i> {ip1}:{port1}')
+    row.append(f'<i class="fa {icon1}" title="{_(descr1)}"></i> {ip1}')
    row.append(inv_serial)
-    row.append(f'<i class="fa {icon2}"></i> {ip2}:{port2}')
-    row.append(f'<i class="fa {icon2}"></i> {ip2}')
+    row.append(f'<i class="fa {icon2}" title="{_(descr2)}"></i> {ip2}:{port2}')
+    row.append(f'<i class="fa {icon2}" title="{_(descr2)}"></i> {ip2}')
    return row


--- a/app/src/web/log_files.py
+++ b/app/src/web/log_files.py
@@ -1,26 +1,58 @@
 from quart import render_template
-from quart_babel import format_datetime, format_decimal
+from quart_babel import format_datetime, format_decimal, _
 from quart.helpers import send_from_directory
 from werkzeug.utils import secure_filename
 from cnf.config import Config
+from datetime import datetime
+from os import DirEntry
 import os
+from dateutil import tz

 from . import web


-def _get_file(file):
+def _get_birth_from_log(path: str) -> None | datetime:
+    '''read timestamp from the first line of a log file'''
+    dt = None
+    try:
+        with open(path) as f:
+            first_line = f.readline()
+            first_line = first_line.lstrip("'")
+            fmt = "%Y-%m-%d %H:%M:%S" if first_line[4] == '-' \
+                else "%d-%m-%Y %H:%M:%S"
+            dt = datetime.strptime(first_line[0:19], fmt). \
+                replace(tzinfo=tz.tzlocal())
+    except Exception:
+        pass
+    return dt
+
+
+def _get_file(file: DirEntry) -> dict:
    '''build one row for the connection table'''
    entry = {}
    entry['name'] = file.name
    stat = file.stat()
    entry['size'] = format_decimal(stat.st_size)
-    entry['date'] = stat.st_mtime
-    entry['created'] = format_datetime(stat.st_ctime, format="short")
+    try:
+        dt = stat.st_birthtime
+
+    except Exception:
+        dt = _get_birth_from_log(file.path)
+
+    if dt:
+        entry['created'] = format_datetime(dt, format="short")
+
+        # sort by creating date, if available
+        entry['date'] = dt if isinstance(dt, float) else dt.timestamp()
+    else:
+        entry['created'] = _('n/a')
+        entry['date'] = stat.st_mtime
+
    entry['modified'] = format_datetime(stat.st_mtime, format="short")
    return entry


-def get_list_data():
+def get_list_data() -> list:
    '''build the connection table'''
    file_list = []
    with os.scandir(Config.get_log_path()) as it:
--- a/app/src/web/mqtt_table.py
+++ b/app/src/web/mqtt_table.py
@@ -46,10 +46,13 @@ def get_table_data():
@web.route('/mqtt-fetch')
 async def mqtt_fetch():
    mqtt = Mqtt(None)
-    ctime = format_datetime(dt=mqtt.ctime, format='short')
+    cdatetime = format_datetime(dt=mqtt.ctime, format='d.MM. HH:mm')
    data = {
        "update-time": format_datetime(format="medium"),
-        "mqtt-ctime": f"<h3>{ctime}</h3>",
+        "mqtt-ctime": f"""
+<h3 class="w3-hide-small w3-hide-medium">{cdatetime}</h3>
+<h4 class="w3-hide-large">{cdatetime}</h4>
+""",
        "mqtt-tx": f"<h3>{mqtt.published}</h3>",
        "mqtt-rx": f"<h3>{mqtt.received}</h3>",
    }
--- a/app/src/web/templates/base.html.j2
+++ b/app/src/web/templates/base.html.j2
@@ -57,7 +57,7 @@
        <button href="#" class="w3-bar-item w3-button w3-padding-16 w3-hide-large w3-dark-grey w3-hover-black" onclick="w3_close()" title="close menu"><i class="fa fa-remove fa-fw"></i>  Close Menu</button>
        <a href="{{ url_for('.index')}}" class="w3-bar-item w3-button w3-padding {% block menu1_class %}{% endblock %}"><i class="fa fa-network-wired fa-fw"></i>  {{_('Connections')}}</a>
        <a href="{{ url_for('.mqtt')}}" class="w3-bar-item w3-button w3-padding {% block menu2_class %}{% endblock %}"><i class="fa fa-database fa-fw"></i>  MQTT</a>
-        <a href="{{ url_for('.notes')}}" class="w3-bar-item w3-button w3-padding {% block menu3_class %}{% endblock %}"><i class="fa fa-exclamation-triangle fa-fw"></i>  {{_('Important Messages')}}</a>
+        <a href="{{ url_for('.notes')}}" class="w3-bar-item w3-button w3-padding {% block menu3_class %}{% endblock %}"><i class="fa fa-info fa-fw"></i>  {{_('Important Messages')}}</a>
        <a href="{{ url_for('.logging')}}" class="w3-bar-item w3-button w3-padding {% block menu4_class %}{% endblock %}"><i class="fa fa-file-export fa-fw"></i>  {{_('Log Files')}}</a>
      </div>
    </nav>
--- a/app/src/web/templates/page_logging.html.j2
+++ b/app/src/web/templates/page_logging.html.j2
@@ -7,9 +7,9 @@
  <div id="id01" class="w3-modal">
    <div class="w3-modal-content" style="width:600px">
      <div class="w3-container w3-padding-24">
-        <h2>{{_("Do you really want to delete the log file")}}:<br><b><span id="id03"></span></b> ?</h2>
+        <h2>{{_('Do you really want to delete the log file: <br>%(file)s ?', file='<b><span id="id03"></span></b>')}}</h2>
        <div class="w3-bar">
-          <button id="id02" class="w3-button w3-red" onclick="deleteFile(); document.getElementById('id01').style.display='none'">{{_('Delete File</button')}}>
+          <button id="id02" class="w3-button w3-red" onclick="deleteFile(); document.getElementById('id01').style.display='none'">{{_('Delete File')}}</button>
          <button class="w3-button w3-grey w3-right" onclick="document.getElementById('id01').style.display='none'">{{_('Abort')}}</button>
        </div>
      </div>
--- a/app/src/web/templates/page_mqtt.html.j2
+++ b/app/src/web/templates/page_mqtt.html.j2
@@ -8,7 +8,7 @@
    <div class="w3-third">
      <div class="w3-card-4">
      <div class="w3-container w3-indigo w3-padding-16">
-        <div class="w3-left"><i class="fa fa-link w3-xxxlarge"></i></div>
+        <div class="w3-left"><i class="fa fa-business-time w3-xxxlarge"></i></div>
        <div id = "mqtt-ctime" class="w3-right">
          <h3>-</h3>
        </div>
@@ -21,7 +21,7 @@
    <div class="w3-third">
      <div class="w3-card-4">
      <div class="w3-container w3-purple w3-padding-16">
-        <div class="w3-left"><i class="fa fa-server w3-xxxlarge"></i></div>
+        <div class="w3-left"><i class="fa fa-angle-double-right w3-xxxlarge"></i></div>
        <div id = "mqtt-tx" class="w3-right">
          <h3>-</h3>
        </div>
@@ -34,7 +34,7 @@
    <div class="w3-third">
      <div class="w3-card-4">
      <div class="w3-container w3-orange w3-text-white w3-padding-16">
-        <div class="w3-left"><i class="fa fa-user w3-xxxlarge"></i></div>
+        <div class="w3-left"><i class="fa fa-angle-double-left w3-xxxlarge"></i></div>
        <div id = "mqtt-rx" class="w3-right">
          <h3>-</h3>
        </div>
--- a/app/src/web/templates/page_notes.html.j2
+++ b/app/src/web/templates/page_notes.html.j2
@@ -2,7 +2,7 @@

 {% block title %}{{_("TSUN Proxy - Important Messages")}}{% endblock title %}
 {% block menu3_class %}w3-blue{% endblock %}
-{% block headline %}<i class="fa fa-exclamation-triangle fa-fw"></i>  {{_('Important Messages')}}{% endblock headline %}
+{% block headline %}<i class="fa fa-info fa-fw"></i>  {{_('Important Messages')}}{% endblock headline %}
 {% block content %}
  <div id="notes-list"></div>
 {% endblock content%}
--- a/app/tests/cnf/invalid_config.toml
+++ b/app/tests/cnf/invalid_config.toml
@@ -0,0 +1 @@
+mqtt.port    = ":1883"
--- a/app/tests/conftest.py
+++ b/app/tests/conftest.py
@@ -0,0 +1,20 @@
+import pytest_asyncio
+import asyncio
+
+
+@pytest_asyncio.fixture
+async def my_loop():
+    event_loop = asyncio.get_running_loop()
+    yield event_loop                     
+
+    # Collect all tasks and cancel those that are not 'done'.  
+    tasks = asyncio.all_tasks(event_loop)
+    tasks = [t for t in tasks if not t.done()]
+    for task in tasks:
+        task.cancel()
+
+    # Wait for all tasks to complete, ignoring any CancelledErrors                                  
+    try:
+        await asyncio.wait(tasks)
+    except asyncio.exceptions.CancelledError:
+        pass
--- a/app/tests/log/empty.txt
+++ b/app/tests/log/empty.txt
--- a/app/tests/test_infos.py
+++ b/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, "Cloud_Conn_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}})
+    assert json.dumps(i.stat) == json.dumps({"proxy": {"Inverter_Cnt": 0, "Cloud_Conn_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, "DCU_Command": 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, "Cloud_Conn_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}})
+    assert json.dumps(i.stat) == json.dumps({"proxy": {"Inverter_Cnt": 1, "Cloud_Conn_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, "DCU_Command": 0, "Modbus_Command": 0}})
    val = i.dev_value(Register.INVERTER_CNT)
    assert val == 1

--- a/app/tests/test_infos_g3p.py
+++ b/app/tests/test_infos_g3p.py
@@ -109,7 +109,7 @@ def test_default_db():
    i = InfosG3P(client_mode=False)
    
    assert json.dumps(i.db) == json.dumps({
-        "inverter": {"Manufacturer": "TSUN", "Equipment_Model": "TSOL-MSxx00", "No_Inputs": 4}, 
+        "inverter": {"Manufacturer": "TSUN", "Equipment_Model": "TSOL-MSxx00", "No_Inputs": 2}, 
        "collector": {"Chip_Type": "IGEN TECH"},
        })

@@ -271,7 +271,7 @@ def test_build_ha_conf1():
        elif id == 'inv_count_456':
            assert False

-    assert tests==7
+    assert tests==5

 def test_build_ha_conf2():
    i = InfosG3P(client_mode=False)
@@ -346,7 +346,7 @@ def test_build_ha_conf3():
        elif id == 'inv_count_456':
            assert False

-    assert tests==7
+    assert tests==5

 def test_build_ha_conf4():
    i = InfosG3P(client_mode=True)
--- a/app/tests/test_inverter_base.py
+++ b/app/tests/test_inverter_base.py
@@ -113,7 +113,9 @@ def patch_unhealthy_remote():
    with patch.object(AsyncStreamClient, 'healthy', new_healthy) as conn:
        yield conn

-def test_inverter_iter():
+@pytest.mark.asyncio
+async def test_inverter_iter(my_loop):
+    _ = my_loop
    InverterBase._registry.clear()
    cnt = 0
    reader = FakeReader()
@@ -216,7 +218,8 @@ def test_unhealthy_remote(patch_unhealthy_remote):
    assert cnt == 0

@pytest.mark.asyncio
-async def test_remote_conn(config_conn, patch_open_connection):
+async def test_remote_conn(my_loop, config_conn, patch_open_connection):
+    _ = my_loop
    _ = config_conn
    _ = patch_open_connection
    assert asyncio.get_running_loop()
@@ -242,8 +245,9 @@ async def test_remote_conn(config_conn, patch_open_connection):
    assert cnt == 0

@pytest.mark.asyncio
-async def test_remote_conn_to_private(config_conn, patch_open_connection):
+async def test_remote_conn_to_private(my_loop, config_conn, patch_open_connection):
    '''check DNS resolving of the TSUN FQDN to a local address'''
+    _ = my_loop
    _ = config_conn
    _ = patch_open_connection
    assert asyncio.get_running_loop()
@@ -280,8 +284,9 @@ async def test_remote_conn_to_private(config_conn, patch_open_connection):


@pytest.mark.asyncio
-async def test_remote_conn_to_loopback(config_conn, patch_open_connection):
+async def test_remote_conn_to_loopback(my_loop, config_conn, patch_open_connection):
    '''check DNS resolving of the TSUN FQDN to the loopback address'''
+    _ = my_loop
    _ = config_conn
    _ = patch_open_connection
    assert asyncio.get_running_loop()
@@ -317,8 +322,9 @@ async def test_remote_conn_to_loopback(config_conn, patch_open_connection):
    assert cnt == 0

@pytest.mark.asyncio
-async def test_remote_conn_to_none(config_conn, patch_open_connection):
+async def test_remote_conn_to_none(my_loop, config_conn, patch_open_connection):
    '''check if get_extra_info() return None in case of an error'''
+    _ = my_loop
    _ = config_conn
    _ = patch_open_connection
    assert asyncio.get_running_loop()
@@ -354,7 +360,8 @@ async def test_remote_conn_to_none(config_conn, patch_open_connection):
    assert cnt == 0

@pytest.mark.asyncio
-async def test_unhealthy_remote(config_conn, patch_open_connection, patch_unhealthy_remote):
+async def test_unhealthy_remote(my_loop, config_conn, patch_open_connection, patch_unhealthy_remote):
+    _ = my_loop
    _ = config_conn
    _ = patch_open_connection
    _ = patch_unhealthy_remote
@@ -391,10 +398,10 @@ async def test_unhealthy_remote(config_conn, patch_open_connection, patch_unheal
    assert cnt == 0

@pytest.mark.asyncio
-async def test_remote_disc(config_conn, patch_open_connection):
+async def test_remote_disc(my_loop, config_conn, patch_open_connection):
+    _ = my_loop
    _ = config_conn
    _ = patch_open_connection
-    assert asyncio.get_running_loop()
    reader = FakeReader()
    writer =  FakeWriter()

--- a/app/tests/test_inverter_g3.py
+++ b/app/tests/test_inverter_g3.py
@@ -99,7 +99,8 @@ def patch_healthy():
    with patch.object(AsyncStream, 'healthy') as conn:
        yield conn

-def test_method_calls(patch_healthy):
+@pytest.mark.asyncio
+async def test_method_calls(my_loop, patch_healthy):
    spy = patch_healthy
    reader = FakeReader()
    writer =  FakeWriter()
@@ -119,7 +120,7 @@ def test_method_calls(patch_healthy):
    assert cnt == 0

@pytest.mark.asyncio
-async def test_remote_conn(config_conn, patch_open_connection):
+async def test_remote_conn(my_loop, config_conn, patch_open_connection):
    _ = config_conn
    _ = patch_open_connection
    assert asyncio.get_running_loop()
@@ -137,7 +138,7 @@ async def test_remote_conn(config_conn, patch_open_connection):
    assert cnt == 0

@pytest.mark.asyncio
-async def test_remote_except(config_conn, patch_open_connection):
+async def test_remote_except(my_loop, config_conn, patch_open_connection):
    _ = config_conn
    _ = patch_open_connection
    assert asyncio.get_running_loop()
@@ -164,7 +165,7 @@ async def test_remote_except(config_conn, patch_open_connection):
    assert cnt == 0

@pytest.mark.asyncio
-async def test_mqtt_publish(config_conn, patch_open_connection):
+async def test_mqtt_publish(my_loop, config_conn, patch_open_connection):
    _ = config_conn
    _ = patch_open_connection
    assert asyncio.get_running_loop()
@@ -191,7 +192,7 @@ async def test_mqtt_publish(config_conn, patch_open_connection):
        assert Infos.new_stat_data['proxy'] == False

@pytest.mark.asyncio
-async def test_mqtt_err(config_conn, patch_open_connection, patch_mqtt_err):
+async def test_mqtt_err(my_loop, config_conn, patch_open_connection, patch_mqtt_err):
    _ = config_conn
    _ = patch_open_connection
    _ = patch_mqtt_err
@@ -208,7 +209,7 @@ async def test_mqtt_err(config_conn, patch_open_connection, patch_mqtt_err):
        assert stream.new_data['inverter'] == True

@pytest.mark.asyncio
-async def test_mqtt_except(config_conn, patch_open_connection, patch_mqtt_except):
+async def test_mqtt_except(my_loop, config_conn, patch_open_connection, patch_mqtt_except):
    _ = config_conn
    _ = patch_open_connection
    _ = patch_mqtt_except
--- a/app/tests/test_inverter_g3p.py
+++ b/app/tests/test_inverter_g3p.py
@@ -94,7 +94,8 @@ def patch_open_connection():
    with patch.object(asyncio, 'open_connection', new_open) as conn:
        yield conn

-def test_method_calls(config_conn):
+@pytest.mark.asyncio
+async def test_method_calls(my_loop, config_conn):
    _ = config_conn
    reader = FakeReader()
    writer =  FakeWriter()
@@ -105,7 +106,7 @@ def test_method_calls(config_conn):
        assert inverter.local.ifc

@pytest.mark.asyncio
-async def test_remote_conn(config_conn, patch_open_connection):
+async def test_remote_conn(my_loop, config_conn, patch_open_connection):
    _ = config_conn
    _ = patch_open_connection
    assert asyncio.get_running_loop()
@@ -116,7 +117,7 @@ async def test_remote_conn(config_conn, patch_open_connection):
        assert inverter.remote.stream

@pytest.mark.asyncio
-async def test_remote_except(config_conn, patch_open_connection):
+async def test_remote_except(my_loop, config_conn, patch_open_connection):
    _ = config_conn
    _ = patch_open_connection
    assert asyncio.get_running_loop()
@@ -138,7 +139,7 @@ async def test_remote_except(config_conn, patch_open_connection):


@pytest.mark.asyncio
-async def test_mqtt_publish(config_conn, patch_open_connection):
+async def test_mqtt_publish(my_loop, config_conn, patch_open_connection):
    _ = config_conn
    _ = patch_open_connection
    assert asyncio.get_running_loop()
@@ -165,7 +166,7 @@ async def test_mqtt_publish(config_conn, patch_open_connection):
        assert Infos.new_stat_data['proxy'] == False

@pytest.mark.asyncio
-async def test_mqtt_err(config_conn, patch_open_connection, patch_mqtt_err):
+async def test_mqtt_err(my_loop, config_conn, patch_open_connection, patch_mqtt_err):
    _ = config_conn
    _ = patch_open_connection
    _ = patch_mqtt_err
@@ -182,7 +183,7 @@ async def test_mqtt_err(config_conn, patch_open_connection, patch_mqtt_err):
        assert stream.new_data['inverter'] == True

@pytest.mark.asyncio
-async def test_mqtt_except(config_conn, patch_open_connection, patch_mqtt_except):
+async def test_mqtt_except(my_loop, config_conn, patch_open_connection, patch_mqtt_except):
    _ = config_conn
    _ = patch_open_connection
    _ = patch_mqtt_except
--- a/app/tests/test_modbus.py
+++ b/app/tests/test_modbus.py
@@ -19,7 +19,8 @@ class ModbusTestHelper(Modbus):
    def resp_handler(self):
        self.recv_responses += 1

-def test_modbus_crc():
+@pytest.mark.asyncio
+async def test_modbus_crc():
    '''Check CRC-16 calculation'''
    mb = Modbus(None)
    assert 0x0b02 == mb._Modbus__calc_crc(b'\x01\x06\x20\x08\x00\x04')
@@ -37,7 +38,8 @@ def test_modbus_crc():
    msg += b'\x00\x00\x00\x00\x00\x00\x00\xe6\xef'
    assert 0 == mb._Modbus__calc_crc(msg)

-def test_build_modbus_pdu():
+@pytest.mark.asyncio
+async def test_build_modbus_pdu():
    '''Check building and sending a MODBUS RTU'''
    mb = ModbusTestHelper()
    mb.build_msg(1,6,0x2000,0x12)
@@ -49,7 +51,8 @@ def test_build_modbus_pdu():
    assert mb.last_len == 18
    assert mb.err == 0

-def test_recv_req():
+@pytest.mark.asyncio
+async 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')
@@ -58,7 +61,8 @@ def test_recv_req():
    assert mb.last_len == 0x12
    assert mb.err == 0

-def test_recv_req_crc_err():
+@pytest.mark.asyncio
+async 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')
@@ -68,7 +72,8 @@ def test_recv_req_crc_err():
    assert mb.last_len == 0
    assert mb.err == 1

-def test_recv_resp_crc_err():
+@pytest.mark.asyncio
+async def test_recv_resp_crc_err():
    '''Receive a response with invalid CRC, which must be dropped'''
    mb = ModbusTestHelper()
    # simulate a transmitted request
@@ -89,7 +94,8 @@ def test_recv_resp_crc_err():
    mb._Modbus__stop_timer()
    assert not mb.req_pend

-def test_recv_resp_invalid_addr():
+@pytest.mark.asyncio
+async def test_recv_resp_invalid_addr():
    '''Receive a response with wrong server addr, which must be dropped'''
    mb = ModbusTestHelper()
    mb.req_pend = True
@@ -113,7 +119,8 @@ def test_recv_resp_invalid_addr():
    mb._Modbus__stop_timer()
    assert not mb.req_pend

-def test_recv_recv_fcode():
+@pytest.mark.asyncio
+async 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)
@@ -135,7 +142,8 @@ def test_recv_recv_fcode():
    mb._Modbus__stop_timer()
    assert not mb.req_pend

-def test_recv_resp_len():
+@pytest.mark.asyncio
+async 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)
@@ -158,7 +166,8 @@ def test_recv_resp_len():
    mb._Modbus__stop_timer()
    assert not mb.req_pend

-def test_recv_unexpect_resp():
+@pytest.mark.asyncio
+async def test_recv_unexpect_resp():
    '''Receive a response when we havb't sent a request'''
    mb = ModbusTestHelper()
    assert not mb.req_pend
@@ -174,7 +183,8 @@ def test_recv_unexpect_resp():
    assert mb.req_pend == False
    assert mb.que.qsize() == 0

-def test_parse_resp():
+@pytest.mark.asyncio
+async def test_parse_resp():
    '''Receive matching response and parse the values'''
    mb = ModbusTestHelper()
    mb.build_msg(1,3,0x3007,6)
@@ -200,7 +210,8 @@ def test_parse_resp():
    assert mb.que.qsize() == 0
    assert not mb.req_pend

-def test_queue():
+@pytest.mark.asyncio
+async def test_queue():
    mb = ModbusTestHelper()
    mb.build_msg(1,3,0x3022,4)
    assert mb.que.qsize() == 0
@@ -218,7 +229,8 @@ def test_queue():
    mb._Modbus__stop_timer()
    assert not mb.req_pend

-def test_queue2():
+@pytest.mark.asyncio
+async def test_queue2():
    '''Check queue handling for build_msg() calls'''
    mb = ModbusTestHelper()
    mb.build_msg(1,3,0x3007,6)
@@ -267,7 +279,8 @@ def test_queue2():
    assert mb.que.qsize() == 0
    assert not mb.req_pend

-def test_queue3():
+@pytest.mark.asyncio
+async 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)
@@ -324,7 +337,7 @@ def test_queue3():
    assert not mb.req_pend

@pytest.mark.asyncio
-async def test_timeout():
+async def test_timeout(my_loop):
    '''Test MODBUS response timeout and RTU retransmitting'''
    assert asyncio.get_running_loop()
    mb = ModbusTestHelper()
@@ -371,7 +384,8 @@ async def test_timeout():
    assert mb.retry_cnt == 0
    assert mb.send_calls == 4

-def test_recv_unknown_data():
+@pytest.mark.asyncio
+async def test_recv_unknown_data():
    '''Receive a response with an unknwon register'''
    mb = ModbusTestHelper()
    assert 0x9000 not in mb.mb_reg_mapping
@@ -390,7 +404,8 @@ def test_recv_unknown_data():

    del mb.mb_reg_mapping[0x9000]

-def test_close():
+@pytest.mark.asyncio
+async def test_close():
    '''Check queue handling for build_msg() calls'''
    mb = ModbusTestHelper()
    mb.build_msg(1,3,0x3007,6)
--- a/app/tests/test_mqtt.py
+++ b/app/tests/test_mqtt.py
@@ -3,8 +3,10 @@ import pytest
 import asyncio
 import aiomqtt
 import logging
-
+from aiomqtt import MqttError, MessagesIterator
+from aiomqtt import Message as AiomqttMessage
 from mock import patch, Mock
+
 from async_stream import AsyncIfcImpl
 from singleton import Singleton
 from mqtt import Mqtt
@@ -17,7 +19,7 @@ NO_MOSQUITTO_TEST = False

 pytest_plugins = ('pytest_asyncio',)

-@pytest.fixture(scope="module", autouse=True)
+@pytest.fixture(scope="function", autouse=True)
 def module_init():
    Singleton._instances.clear()
    yield
@@ -33,6 +35,26 @@ def test_hostname():
    # else:
        return 'test.mosquitto.org'

+@pytest.fixture(scope="function")
+def aiomqtt_mock(monkeypatch):
+    recv_que = asyncio.Queue()
+        
+    async def my_aenter(self):
+        return self
+    async def my_subscribe(self, *arg):
+        return
+    async def my_anext(self):
+        return await recv_que.get()
+    async def my_receive(self, topic: str, payload: bytes):
+        msg = AiomqttMessage(topic, payload,qos=0, retain=False, mid=0, properties=None)
+        await recv_que.put(msg)
+        await asyncio.sleep(0)  # dispath the msg
+
+    monkeypatch.setattr(aiomqtt.Client, "__aenter__", my_aenter)
+    monkeypatch.setattr(aiomqtt.Client, "subscribe", my_subscribe)
+    monkeypatch.setattr(MessagesIterator, "__anext__", my_anext)
+    monkeypatch.setattr(Mqtt, "receive", my_receive, False)
+
@pytest.fixture
 def config_mqtt_conn(test_hostname, test_port):
    Config.act_config = {'mqtt':{'host': test_hostname, 'port': test_port, 'user': '', 'passwd': ''},
@@ -44,6 +66,14 @@ def config_no_conn(test_port):
    Config.act_config = {'mqtt':{'host': "", 'port': test_port, 'user': '', 'passwd': ''},
                         'ha':{'auto_conf_prefix': 'homeassistant','discovery_prefix': 'homeassistant', 'entity_prefix': 'tsun'}
                        }
+    Config.def_config = {}
+
+@pytest.fixture
+def config_def_conn(test_port):
+    Config.act_config = {'mqtt':{'host': "unknown_url", 'port': test_port, 'user': '', 'passwd': ''},
+                         'ha':{'auto_conf_prefix': 'homeassistant','discovery_prefix': 'homeassistant', 'entity_prefix': 'tsun'}
+                        }
+    Config.def_config = Config.act_config

@pytest.fixture
 def spy_at_cmd():
@@ -69,6 +99,14 @@ def spy_modbus_cmd_client():
        yield wrapped_conn
    conn.close()

+@pytest.fixture
+def spy_dcu_cmd():
+    conn = SolarmanV5(None, ('test.local', 1234), server_side=True, client_mode= False, ifc=AsyncIfcImpl())
+    conn.node_id = 'inv_3/'
+    with patch.object(conn, 'send_dcu_cmd', wraps=conn.send_dcu_cmd) as wrapped_conn:
+        yield wrapped_conn
+    conn.close()
+
 def test_native_client(test_hostname, test_port):
    """Sanity check: Make sure the paho-mqtt client can connect to the test
    MQTT server. Otherwise the test set NO_MOSQUITTO_TEST to True and disable
@@ -144,13 +182,17 @@ async def test_ha_reconnect(config_mqtt_conn):
        await m.close()

@pytest.mark.asyncio
-async def test_mqtt_no_config(config_no_conn):
+async def test_mqtt_no_config(config_no_conn, monkeypatch):
    _ = config_no_conn
    assert asyncio.get_running_loop()

    on_connect =  asyncio.Event()
    async def cb():
        on_connect.set()
+    async def my_publish(*args):
+        return
+
+    monkeypatch.setattr(aiomqtt.Client, "publish", my_publish)

    try:
        m = Mqtt(cb)
@@ -159,74 +201,193 @@ async def test_mqtt_no_config(config_no_conn):
        assert not on_connect.is_set()
        try:
            await m.publish('homeassistant/status', 'online')
-            assert False
+            assert m.published == 1
        except Exception:
-            pass          
+            assert False          
    except TimeoutError:
        assert False
    finally:
        await m.close()

@pytest.mark.asyncio
-async def test_msg_dispatch(config_mqtt_conn, spy_modbus_cmd):
+async def test_mqtt_except_no_config(config_no_conn, monkeypatch, caplog):
+    _ = config_no_conn
+
+    assert asyncio.get_running_loop()
+
+    async def my_aenter(self):
+        raise MqttError('TestException') from None
+    
+    monkeypatch.setattr(aiomqtt.Client, "__aenter__", my_aenter)
+
+    LOGGER = logging.getLogger("mqtt")
+    LOGGER.propagate = True
+    LOGGER.setLevel(logging.INFO)
+
+    with caplog.at_level(logging.INFO):
+        m = Mqtt(None)
+        assert m.task
+        await asyncio.sleep(0)
+        try:
+            await m.publish('homeassistant/status', 'online')
+            assert False
+        except MqttError:
+            pass
+        except Exception:
+            assert False          
+        finally:
+            await m.close()
+    assert 'Connection lost; Reconnecting in 5 seconds' in caplog.text
+
+@pytest.mark.asyncio
+async def test_mqtt_except_def_config(config_def_conn, monkeypatch, caplog):
+    _ = config_def_conn
+
+    assert asyncio.get_running_loop()
+
+    on_connect =  asyncio.Event()
+    async def cb():
+        on_connect.set()
+
+    async def my_aenter(self):
+        raise MqttError('TestException') from None
+    
+    monkeypatch.setattr(aiomqtt.Client, "__aenter__", my_aenter)
+
+    LOGGER = logging.getLogger("mqtt")
+    LOGGER.propagate = True
+    LOGGER.setLevel(logging.INFO)
+
+    with caplog.at_level(logging.INFO):
+        m = Mqtt(cb)
+        assert m.task
+        await asyncio.sleep(0)
+        assert not on_connect.is_set()
+        try:
+            await m.publish('homeassistant/status', 'online')
+            assert False
+        except MqttError:
+            pass
+        except Exception:
+            assert False          
+        finally:
+            await m.close()
+    assert 'MQTT is unconfigured; Check your config.toml!' in caplog.text
+
+@pytest.mark.asyncio
+async def test_mqtt_dispatch(config_mqtt_conn, aiomqtt_mock, spy_modbus_cmd):
    _ = config_mqtt_conn
+    _ = aiomqtt_mock
    spy = spy_modbus_cmd
    try:
        m = Mqtt(None)
-        msg = aiomqtt.Message(topic= 'tsun/inv_1/rated_load', payload= b'2', qos= 0, retain = False, mid= 0, properties= None)
-        await m.dispatch_msg(msg)
+        assert m.ha_restarts == 0
+        await m.receive('homeassistant/status', b'online')  # send the message
+        assert m.ha_restarts == 1
+
+        await m.receive(topic= 'tsun/inv_1/rated_load', payload= b'2')
        spy.assert_awaited_once_with(Modbus.WRITE_SINGLE_REG, 0x2008, 2, logging.INFO)
-        
+
        spy.reset_mock()
-        msg = aiomqtt.Message(topic= 'tsun/inv_1/out_coeff', payload= b'100', qos= 0, retain = False, mid= 0, properties= None)
-        await m.dispatch_msg(msg)
+        await m.receive(topic= 'tsun/inv_1/out_coeff', payload= b'100')
        spy.assert_awaited_once_with(Modbus.WRITE_SINGLE_REG, 0x202c, 1024, logging.INFO)
        
        spy.reset_mock()
-        msg = aiomqtt.Message(topic= 'tsun/inv_1/out_coeff', payload= b'50', qos= 0, retain = False, mid= 0, properties= None)
-        await m.dispatch_msg(msg)
+        await m.receive(topic= 'tsun/inv_1/out_coeff', payload= b'50')
        spy.assert_awaited_once_with(Modbus.WRITE_SINGLE_REG, 0x202c, 512, logging.INFO)
    
        spy.reset_mock()
-        msg = aiomqtt.Message(topic= 'tsun/inv_1/modbus_read_regs', payload= b'0x3000, 10', qos= 0, retain = False, mid= 0, properties= None)
-        await m.dispatch_msg(msg)
+        await m.receive(topic= 'tsun/inv_1/modbus_read_regs', payload= b'0x3000, 10')
        spy.assert_awaited_once_with(Modbus.READ_REGS, 0x3000, 10, logging.INFO)

        spy.reset_mock()
-        msg = aiomqtt.Message(topic= 'tsun/inv_1/modbus_read_inputs', payload= b'0x3000, 10', qos= 0, retain = False, mid= 0, properties= None)
-        await m.dispatch_msg(msg)
+        await m.receive(topic= 'tsun/inv_1/modbus_read_inputs', payload= b'0x3000, 10')
        spy.assert_awaited_once_with(Modbus.READ_INPUTS, 0x3000, 10, logging.INFO)

+        # test dispatching with empty mapping table
+        m.topic_defs.clear()
+        spy.reset_mock()
+        await m.receive(topic= 'tsun/inv_1/modbus_read_inputs', payload= b'0x3000, 10')
+        spy.assert_not_called()
+
+        # test dispatching with incomplete mapping table - invalid fnc defined
+        m.topic_defs.append(
+            {'prefix': 'entity_prefix', 'topic': '/+/modbus_read_inputs',
+             'full_topic': 'tsun/+/modbus_read_inputs', 'fnc': 'addr'}
+        )
+        spy.reset_mock()
+        await m.receive(topic= 'tsun/inv_1/modbus_read_inputs', payload= b'0x3000, 10')
+        spy.assert_not_called()
+
+    except MqttError:
+        assert False
+    except Exception:
+        assert False          
    finally:
        await m.close()

@pytest.mark.asyncio
-async def test_msg_dispatch_err(config_mqtt_conn, spy_modbus_cmd):
+async def test_mqtt_dispatch_cb(config_mqtt_conn, aiomqtt_mock):
    _ = config_mqtt_conn
+    _ = aiomqtt_mock
+
+    on_connect =  asyncio.Event()
+    async def cb():
+        on_connect.set()
+    try:
+        m = Mqtt(cb)
+        assert m.ha_restarts == 0
+        await m.receive('homeassistant/status', b'online')  # send the message
+        assert on_connect.is_set()
+        assert m.ha_restarts == 1
+
+    except MqttError:
+        assert False
+    except Exception:
+        assert False          
+    finally:
+        await m.close()
+
+@pytest.mark.asyncio
+async def test_mqtt_dispatch_err(config_mqtt_conn, aiomqtt_mock, spy_modbus_cmd, caplog):
+    _ = config_mqtt_conn
+    _ = aiomqtt_mock
    spy = spy_modbus_cmd
+
+    LOGGER = logging.getLogger("mqtt")
+    LOGGER.propagate = True
+    LOGGER.setLevel(logging.INFO)
+
    try:
        m = Mqtt(None)
+
        # test out of range param
-        msg = aiomqtt.Message(topic= 'tsun/inv_1/out_coeff', payload= b'-1', qos= 0, retain = False, mid= 0, properties= None)
-        await m.dispatch_msg(msg)
+        await m.receive(topic= 'tsun/inv_1/out_coeff', payload= b'-1')
        spy.assert_not_called()

        # test unknown node_id
-        spy.reset_mock()
-        msg = aiomqtt.Message(topic= 'tsun/inv_2/out_coeff', payload= b'2', qos= 0, retain = False, mid= 0, properties= None)
-        await m.dispatch_msg(msg)
+        await m.receive(topic= 'tsun/inv_2/out_coeff', payload= b'2')
        spy.assert_not_called()

        # test invalid fload param
-        spy.reset_mock()
-        msg = aiomqtt.Message(topic= 'tsun/inv_1/out_coeff', payload= b'2, 3', qos= 0, retain = False, mid= 0, properties= None)
-        await m.dispatch_msg(msg)
+        await m.receive(topic= 'tsun/inv_1/out_coeff', payload= b'2, 3')
+        spy.assert_not_called()
+    
+        await m.receive(topic= 'tsun/inv_1/modbus_read_regs', payload= b'0x3000, 10, 7')
        spy.assert_not_called()

-        spy.reset_mock()
-        msg = aiomqtt.Message(topic= 'tsun/inv_1/modbus_read_regs', payload= b'0x3000, 10, 7', qos= 0, retain = False, mid= 0, properties= None)
-        await m.dispatch_msg(msg)
+        await m.receive(topic= 'tsun/inv_1/dcu_power', payload= b'100W')
        spy.assert_not_called()
+
+        with caplog.at_level(logging.INFO):
+            msg = aiomqtt.Message(topic= 'tsun/inv_1/out_coeff', payload= b'2', qos= 0, retain = False, mid= 0, properties= None)
+            for _ in m.each_inverter(msg, "addr"):
+                pass  # do nothing here
+        assert 'Cmd not supported by: inv_1/' in caplog.text
+    except MqttError:
+        assert False
+    except Exception:
+        assert False          
    finally:
        await m.close()

@@ -267,3 +428,31 @@ async def test_at_cmd_dispatch(config_mqtt_conn, spy_at_cmd):
        
    finally:
        await m.close()
+
+@pytest.mark.asyncio
+async def test_dcu_dispatch(config_mqtt_conn, spy_dcu_cmd):
+    _ = config_mqtt_conn
+    spy = spy_dcu_cmd
+    try:
+        m = Mqtt(None)
+        msg = aiomqtt.Message(topic= 'tsun/inv_3/dcu_power', payload= b'100.0', qos= 0, retain = False, mid= 0, properties= None)
+        await m.dispatch_msg(msg)
+        spy.assert_called_once_with(b'\x01\x01\x06\x01\x00\x01\x03\xe8')
+    finally:
+        await m.close()
+
+@pytest.mark.asyncio
+async def test_dcu_inv_value(config_mqtt_conn, spy_dcu_cmd):
+    _ = config_mqtt_conn
+    spy = spy_dcu_cmd
+    try:
+        m = Mqtt(None)
+        msg = aiomqtt.Message(topic= 'tsun/inv_3/dcu_power', payload= b'99.9', qos= 0, retain = False, mid= 0, properties= None)
+        await m.dispatch_msg(msg)
+        spy.assert_not_called()
+
+        msg = aiomqtt.Message(topic= 'tsun/inv_3/dcu_power', payload= b'800.1', qos= 0, retain = False, mid= 0, properties= None)
+        await m.dispatch_msg(msg)
+        spy.assert_not_called()
+    finally:
+        await m.close()
--- a/app/tests/test_server.py
+++ b/app/tests/test_server.py
@@ -3,66 +3,284 @@ import pytest
 import logging
 import os
 from mock import patch
-from server import get_log_level, app, ProxyState
+from server import app, Server, ProxyState, HypercornLogHndl
+from inverter_base import InverterBase
+from gen3.talent import Talent
+
+from test_inverter_base import FakeReader, FakeWriter

 pytest_plugins = ('pytest_asyncio',)

-def test_get_log_level():

-    with patch.dict(os.environ, {}):
-        log_lvl = get_log_level()
-        assert log_lvl == None
+class TestServerClass:
+    class FakeServer(Server):
+        def __init__(self):
+            pass  # don't call the suoer(.__init__ for unit tests

-    with patch.dict(os.environ, {'LOG_LVL': 'DEBUG'}):
-        log_lvl = get_log_level()
-        assert log_lvl == logging.DEBUG
+    def test_get_log_level(self):
+        s = self.FakeServer()

-    with patch.dict(os.environ, {'LOG_LVL': 'INFO'}):
-        log_lvl = get_log_level()
-        assert log_lvl == logging.INFO
+        with patch.dict(os.environ, {}):
+            log_lvl = s.get_log_level()
+            assert log_lvl == None

-    with patch.dict(os.environ, {'LOG_LVL': 'WARN'}):
-        log_lvl = get_log_level()
-        assert log_lvl == logging.WARNING
+        with patch.dict(os.environ, {'LOG_LVL': 'DEBUG'}):
+            log_lvl = s.get_log_level()
+            assert log_lvl == logging.DEBUG

-    with patch.dict(os.environ, {'LOG_LVL': 'ERROR'}):
-        log_lvl = get_log_level()
-        assert log_lvl == logging.ERROR
+        with patch.dict(os.environ, {'LOG_LVL': 'INFO'}):
+            log_lvl = s.get_log_level()
+            assert log_lvl == logging.INFO

-    with patch.dict(os.environ, {'LOG_LVL': 'UNKNOWN'}):
-        log_lvl = get_log_level()
-        assert log_lvl == None
+        with patch.dict(os.environ, {'LOG_LVL': 'WARN'}):
+            log_lvl = s.get_log_level()
+            assert log_lvl == logging.WARNING

-@pytest.mark.asyncio
-async def test_ready():
-    """Test the ready route."""
+        with patch.dict(os.environ, {'LOG_LVL': 'ERROR'}):
+            log_lvl = s.get_log_level()
+            assert log_lvl == logging.ERROR

-    ProxyState.set_up(False)
-    client = app.test_client()
-    response = await client.get('/-/ready')
-    assert response.status_code == 503
-    result = await response.get_data()
-    assert result == b"Not ready"
+        with patch.dict(os.environ, {'LOG_LVL': 'UNKNOWN'}):
+            log_lvl = s.get_log_level()
+            assert log_lvl == None

-    ProxyState.set_up(True)
-    response = await client.get('/-/ready')
-    assert response.status_code == 200
-    result = await response.get_data()
-    assert result == b"Is ready"
+    def test_default_args(self):
+        s = self.FakeServer()
+        assert s.config_path == './config/'
+        assert s.json_config == ''
+        assert s.toml_config == ''
+        assert s.trans_path == '../translations/'
+        assert s.rel_urls == False
+        assert s.log_path == './log/'
+        assert s.log_backups == 0

-@pytest.mark.asyncio
-async def test_healthy():
-    """Test the healthy route."""
+    def test_parse_args_empty(self):
+        s = self.FakeServer()
+        s.parse_args([])
+        assert s.config_path == './config/'
+        assert s.json_config == None
+        assert s.toml_config == None
+        assert s.trans_path == '../translations/'
+        assert s.rel_urls == False
+        assert s.log_path == './log/'
+        assert s.log_backups == 0

-    ProxyState.set_up(False)
-    client = app.test_client()
-    response = await client.get('/-/healthy')
-    assert response.status_code == 200
-    result = await response.get_data()
-    assert result == b"I'm fine"
+    def test_parse_args_short(self):
+        s = self.FakeServer()
+        s.parse_args(['-r', '-c', '/tmp/my-config', '-j', 'cnf.jsn', '-t', 'cnf.tml', '-tr', '/my/trans/', '-l', '/my_logs/', '-b', '3'])
+        assert s.config_path == '/tmp/my-config'
+        assert s.json_config == 'cnf.jsn'
+        assert s.toml_config == 'cnf.tml'
+        assert s.trans_path == '/my/trans/'
+        assert s.rel_urls == True
+        assert s.log_path == '/my_logs/'
+        assert s.log_backups == 3

-    ProxyState.set_up(True)
-    response = await client.get('/-/healthy')
-    assert response.status_code == 200
-    result = await response.get_data()
-    assert result == b"I'm fine"
+    def test_parse_args_long(self):
+        s = self.FakeServer()
+        s.parse_args(['--rel_urls', '--config_path', '/tmp/my-config', '--json_config', 'cnf.jsn',
+                      '--toml_config', 'cnf.tml', '--trans_path', '/my/trans/', '--log_path', '/my_logs/',
+                      '--log_backups', '3'])
+        assert s.config_path == '/tmp/my-config'
+        assert s.json_config == 'cnf.jsn'
+        assert s.toml_config == 'cnf.tml'
+        assert s.trans_path == '/my/trans/'
+        assert s.rel_urls == True
+        assert s.log_path == '/my_logs/'
+        assert s.log_backups == 3
+
+    def test_parse_args_invalid(self):
+        s = self.FakeServer()
+        with pytest.raises(SystemExit) as exc_info: 
+            s.parse_args(['--inalid', '/tmp/my-config'])
+        assert exc_info.value.code == 2
+
+    def test_init_logging_system(self):
+        s = self.FakeServer()
+        s.src_dir = 'app/src/'
+        s.init_logging_system()
+        assert s.log_backups == 0
+        assert s.log_level == None
+        assert logging.handlers.log_path == './log/'
+        assert logging.handlers.log_backups == 0
+        assert logging.getLogger().level == logging.DEBUG
+        assert logging.getLogger('msg').level == logging.DEBUG
+        assert logging.getLogger('conn').level == logging.DEBUG
+        assert logging.getLogger('data').level == logging.DEBUG
+        assert logging.getLogger('tracer').level == logging.INFO
+        assert logging.getLogger('asyncio').level == logging.INFO
+        assert logging.getLogger('hypercorn.access').level == logging.INFO
+        assert logging.getLogger('hypercorn.error').level == logging.INFO
+
+        with patch.dict(os.environ, {'LOG_LVL': 'WARN'}):
+            s.parse_args(['--log_backups', '3'])
+            s.init_logging_system()
+            assert s.log_backups == 3
+            assert s.log_level == logging.WARNING
+            assert logging.handlers.log_backups == 3
+            assert logging.getLogger().level == s.log_level
+            assert logging.getLogger('msg').level == s.log_level
+            assert logging.getLogger('conn').level == s.log_level
+            assert logging.getLogger('data').level == s.log_level
+            assert logging.getLogger('tracer').level == s.log_level
+            assert logging.getLogger('asyncio').level == s.log_level
+            assert logging.getLogger('hypercorn.access').level == logging.INFO
+            assert logging.getLogger('hypercorn.error').level == logging.INFO
+
+    def test_build_config_error(self, caplog):
+        s = self.FakeServer()
+        s.src_dir = 'app/src/'
+        s.toml_config = 'app/tests/cnf/invalid_config.toml'
+
+        with caplog.at_level(logging.ERROR):
+            s.build_config()
+        assert "Can't read from app/tests/cnf/invalid_config.toml" in caplog.text
+        assert "Key 'port' error:" in caplog.text
+
+
+class TestHypercornLogHndl:
+    class FakeServer(Server):
+        def __init__(self):
+            pass  # don't call the suoer(.__init__ for unit tests
+
+    def test_save_and_restore(self, capsys):
+        s = self.FakeServer()
+        s.src_dir = 'app/src/'
+        s.init_logging_system()
+
+        h = HypercornLogHndl()
+        assert h.must_fix == False
+        assert len(h.access_hndl) == 0
+        assert len(h.error_hndl) == 0
+
+        h.save()
+        assert h.must_fix == True
+        assert len(h.access_hndl) == 1
+        assert len(h.error_hndl) == 2
+        assert h.access_hndl == logging.getLogger('hypercorn.access').handlers
+        assert h.error_hndl == logging.getLogger('hypercorn.error').handlers
+
+        logging.getLogger('hypercorn.access').handlers = []
+        logging.getLogger('hypercorn.error').handlers = []
+        
+        h.restore()
+        assert h.must_fix == False
+        assert h.access_hndl == logging.getLogger('hypercorn.access').handlers
+        assert h.error_hndl == logging.getLogger('hypercorn.error').handlers
+        output = capsys.readouterr().out.rstrip()
+        assert "* Fix hypercorn.access setting" in output
+        assert "* Fix hypercorn.error setting" in output
+
+        h.restore()  # second restore do nothing
+        assert h.must_fix == False
+        output = capsys.readouterr().out.rstrip()
+        assert output == ''
+
+        h.save()     # save the same values second time
+        assert h.must_fix == True
+
+        h.restore()  # restore without changing the handlers
+        assert h.must_fix == False
+        output = capsys.readouterr().out.rstrip()
+        assert output == ''
+
+
+class TestApp:
+    @pytest.mark.asyncio
+    async def test_ready(self):
+        """Test the ready route."""
+
+        ProxyState.set_up(False)
+        client = app.test_client()
+        response = await client.get('/-/ready')
+        assert response.status_code == 503
+        result = await response.get_data()
+        assert result == b"Not ready"
+
+        ProxyState.set_up(True)
+        response = await client.get('/-/ready')
+        assert response.status_code == 200
+        result = await response.get_data()
+        assert result == b"Is ready"
+
+    @pytest.mark.asyncio
+    async def test_healthy(self):
+        """Test the healthy route."""
+        reader = FakeReader()
+        writer =  FakeWriter()
+
+        with InverterBase(reader, writer, 'tsun', Talent):
+            ProxyState.set_up(False)
+            client = app.test_client()
+            response = await client.get('/-/healthy')
+            assert response.status_code == 200
+            result = await response.get_data()
+            assert result == b"I'm fine"
+
+            ProxyState.set_up(True)
+            response = await client.get('/-/healthy')
+            assert response.status_code == 200
+            result = await response.get_data()
+            assert result == b"I'm fine"
+
+    @pytest.mark.asyncio
+    async def test_unhealthy(self, monkeypatch, caplog):
+        """Test the healthy route."""
+        def result_false(self):
+            return False
+        
+        LOGGER = logging.getLogger("mqtt")
+        LOGGER.propagate = True
+        LOGGER.setLevel(logging.INFO)
+
+        monkeypatch.setattr(InverterBase, "healthy", result_false)
+        InverterBase._registry.clear()
+        reader = FakeReader()
+        writer = FakeWriter()
+
+        with caplog.at_level(logging.INFO) and InverterBase(reader, writer, 'tsun', Talent):
+            ProxyState.set_up(False)
+            client = app.test_client()
+            response = await client.get('/-/healthy')
+            assert response.status_code == 200
+            result = await response.get_data()
+            assert result == b"I'm fine"
+            assert "" == caplog.text
+
+            ProxyState.set_up(True)
+            response = await client.get('/-/healthy')
+            assert response.status_code == 503
+            result = await response.get_data()
+            assert result == b"I have a problem"
+            assert "" == caplog.text
+
+    @pytest.mark.asyncio
+    async def test_healthy_exception(self, monkeypatch, caplog):
+        """Test the healthy route."""
+        def result_except(self):
+            raise ValueError
+        
+        LOGGER = logging.getLogger("mqtt")
+        LOGGER.propagate = True
+        LOGGER.setLevel(logging.INFO)
+
+        monkeypatch.setattr(InverterBase, "healthy", result_except)
+        InverterBase._registry.clear()
+        reader = FakeReader()
+        writer = FakeWriter()
+
+        with caplog.at_level(logging.INFO) and InverterBase(reader, writer, 'tsun', Talent):
+            ProxyState.set_up(False)
+            client = app.test_client()
+            response = await client.get('/-/healthy')
+            assert response.status_code == 200
+            result = await response.get_data()
+            assert result == b"I'm fine"
+            assert "" == caplog.text
+
+            ProxyState.set_up(True)
+            response = await client.get('/-/healthy')
+            assert response.status_code == 200
+            result = await response.get_data()
+            assert result == b"I'm fine"
+            assert "Exception:" in caplog.text
--- a/app/tests/test_solarman.py
+++ b/app/tests/test_solarman.py
@@ -79,6 +79,7 @@ class MemoryStream(SolarmanV5):
        self.key = ''
        self.data = ''
        self.msg_recvd = []
+        

    def write_cb(self):
        if self.test_exception_async_write:
@@ -461,6 +462,39 @@ def inverter_ind_msg800():  # 0x4210 rated Power 800W
    msg += b'\x15'
    return msg

+@pytest.fixture
+def inverter_ind_msg900():  # 0x4210 rated Power 900W 
+    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\x84\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\x84\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 inverter_ind_msg_81():  # 0x4210 fcode 0x81
    msg  = b'\xa5\x99\x01\x10\x42\x02\x03' +get_sn()  +b'\x81\xb0\x02\xbc\xc8'
@@ -675,6 +709,19 @@ def msg_modbus_rsp():  # 0x1510
    msg += b'\x15'
    return msg

+@pytest.fixture
+def msg_modbus_rsp_mb_4():  # 0x1510, MODBUS Type:4
+    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\x04\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\x9e\xa4'
+    msg += correct_checksum(msg)
+    msg += b'\x15'
+    return msg
+
@pytest.fixture
 def msg_modbus_interim_rsp():  # 0x0510
    msg  = b'\xa5\x3b\x00\x10\x15\x03\x03' +get_sn()  +b'\x02\x01'
@@ -811,6 +858,26 @@ def dcu_data_rsp_msg():  # 0x1210
    msg += b'\x15'
    return msg

+@pytest.fixture
+def dcu_command_ind_msg():  # 0x4510
+    msg  = b'\xa5\x17\x00\x10\x45\x94\x02' +get_dcu_sn() +b'\x05\x26\x30'
+    msg += b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'           
+    msg += b'\x01\x01\x06\x01\x00\x01\x03\xe8'
+    msg += correct_checksum(msg)
+    msg += b'\x15'
+    return msg
+
+@pytest.fixture
+def dcu_command_rsp_msg():  # 0x1510
+    msg  = b'\xa5\x11\x00\x10\x15\x94\x03' +get_dcu_sn()  +b'\x05\x01'
+    msg += total()  
+    msg += hb()
+    msg += b'\x00\x00\x00\x00'
+    msg += b'\x01\x01\x01'
+    msg += correct_checksum(msg)
+    msg += b'\x15'
+    return msg
+
@pytest.fixture
 def config_tsun_allow_all():
    Config.act_config = {
@@ -853,9 +920,20 @@ def config_tsun_scan_dcu():

@pytest.fixture
 def config_tsun_dcu1():
-    Config.act_config = {'solarman':{'enabled': True},'batteries':{'4100000000000001':{'monitor_sn': 2070233888, 'node_id':'inv1/', 'modbus_polling': True, 'suggested_area':'roof', 'sensor_list': 0}}}
+    Config.act_config = {
+        'ha':{
+            'auto_conf_prefix': 'homeassistant',
+            'discovery_prefix': 'homeassistant', 
+            'entity_prefix': 'tsun',
+            'proxy_node_id': 'test_1',
+            'proxy_unique_id': ''
+        },
+        'solarman':{'enabled': True, 'host': 'test_cloud.local', 'port': 1234},'batteries':{'4100000000000001':{'monitor_sn': 2070233888, 'node_id':'inv1/', 'modbus_polling': True, 'suggested_area':'roof', 'sensor_list': 0}}}
+    Proxy.class_init()
+    Proxy.mqtt = Mqtt()

-def test_read_message(device_ind_msg):
+@pytest.mark.asyncio
+async def test_read_message(device_ind_msg):
    Config.act_config = {'solarman':{'enabled': True}}
    m = MemoryStream(device_ind_msg, (0,))
    m.read()         # read complete msg, and dispatch msg
@@ -873,10 +951,12 @@ def test_read_message(device_ind_msg):
    assert m.db.stat['proxy']['Invalid_Msg_Format'] == 0
    m.close()

-def test_invalid_start_byte(invalid_start_byte, device_ind_msg):
+@pytest.mark.asyncio
+async def test_invalid_start_byte(invalid_start_byte, device_ind_msg):
    # received a message with wrong start byte plus an valid message
    # the complete receive buffer must be cleared to 
    # find the next valid message
+    Config.act_config = {'solarman':{'enabled': True}}
    m = MemoryStream(invalid_start_byte, (0,))
    m.append_msg(device_ind_msg)
    m.read()         # read complete msg, and dispatch msg
@@ -894,10 +974,12 @@ def test_invalid_start_byte(invalid_start_byte, device_ind_msg):
    assert m.db.stat['proxy']['Invalid_Msg_Format'] == 1
    m.close()

-def test_invalid_stop_byte(invalid_stop_byte):
+@pytest.mark.asyncio
+async def test_invalid_stop_byte(invalid_stop_byte):
    # received a message with wrong stop byte
    # the complete receive buffer must be cleared to 
    # find the next valid message
+    Config.act_config = {'solarman':{'enabled': True}}
    m = MemoryStream(invalid_stop_byte, (0,))
    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since start byte is wrong
@@ -914,9 +996,11 @@ def test_invalid_stop_byte(invalid_stop_byte):
    assert m.db.stat['proxy']['Invalid_Msg_Format'] == 1
    m.close()

-def test_invalid_stop_byte2(invalid_stop_byte, device_ind_msg):
+@pytest.mark.asyncio
+async def test_invalid_stop_byte2(invalid_stop_byte, device_ind_msg):
    # received a message with wrong stop byte plus an valid message
    # only the first message must be discarded
+    Config.act_config = {'solarman':{'enabled': True}}
    m = MemoryStream(invalid_stop_byte, (0,))
    m.append_msg(device_ind_msg)

@@ -939,11 +1023,13 @@ def test_invalid_stop_byte2(invalid_stop_byte, device_ind_msg):
    assert m.db.stat['proxy']['Invalid_Msg_Format'] == 1
    m.close()

-def test_invalid_stop_start_byte(invalid_stop_byte, invalid_start_byte):
+@pytest.mark.asyncio
+async def test_invalid_stop_start_byte(invalid_stop_byte, invalid_start_byte):
    # received a message with wrong stop byte plus an invalid message
    # with fron start byte
    # the complete receive buffer must be cleared to 
    # find the next valid message
+    Config.act_config = {'solarman':{'enabled': True}}
    m = MemoryStream(invalid_stop_byte, (0,))
    m.append_msg(invalid_start_byte)
    m.read()         # read complete msg, and dispatch msg
@@ -961,9 +1047,11 @@ def test_invalid_stop_start_byte(invalid_stop_byte, invalid_start_byte):
    assert m.db.stat['proxy']['Invalid_Msg_Format'] == 1
    m.close()

-def test_invalid_checksum(invalid_checksum, device_ind_msg):
+@pytest.mark.asyncio
+async def test_invalid_checksum(invalid_checksum, device_ind_msg):
    # received a message with wrong checksum plus an valid message
    # only the first message must be discarded
+    Config.act_config = {'solarman':{'enabled': True}}
    m = MemoryStream(invalid_checksum, (0,))
    m.append_msg(device_ind_msg)

@@ -985,7 +1073,8 @@ def test_invalid_checksum(invalid_checksum, device_ind_msg):
    assert m.db.stat['proxy']['Invalid_Msg_Format'] == 1
    m.close()

-def test_read_message_twice(config_no_tsun_inv1, device_ind_msg, device_rsp_msg):
+@pytest.mark.asyncio
+async def test_read_message_twice(config_no_tsun_inv1, device_ind_msg, device_rsp_msg):
    _ = config_no_tsun_inv1
    m = MemoryStream(device_ind_msg, (0,))
    m.append_msg(device_ind_msg)
@@ -1006,7 +1095,9 @@ def test_read_message_twice(config_no_tsun_inv1, device_ind_msg, device_rsp_msg)
    assert m.db.stat['proxy']['Invalid_Msg_Format'] == 0
    m.close()

-def test_read_message_in_chunks(device_ind_msg):
+@pytest.mark.asyncio
+async def test_read_message_in_chunks(device_ind_msg):
+    Config.act_config = {'solarman':{'enabled': True}}
    m = MemoryStream(device_ind_msg, (4,11,0))
    m.read()        # read 4 bytes, header incomplere
    assert not m.header_valid  # must be invalid, since header not complete
@@ -1027,7 +1118,8 @@ def test_read_message_in_chunks(device_ind_msg):
    assert m.db.stat['proxy']['Invalid_Msg_Format'] == 0
    m.close()

-def test_read_message_in_chunks2(config_tsun_inv1, device_ind_msg):
+@pytest.mark.asyncio
+async def test_read_message_in_chunks2(my_loop, config_tsun_inv1, device_ind_msg):
    _ = config_tsun_inv1
    m = MemoryStream(device_ind_msg, (4,10,0))
    m.read()        # read 4 bytes, header incomplere
@@ -1052,7 +1144,8 @@ def test_read_message_in_chunks2(config_tsun_inv1, device_ind_msg):
    assert m.db.stat['proxy']['Invalid_Msg_Format'] == 0
    m.close()

-def test_read_two_messages(config_tsun_allow_all, device_ind_msg, device_rsp_msg, inverter_ind_msg, inverter_rsp_msg):
+@pytest.mark.asyncio
+async def test_read_two_messages(my_loop, config_tsun_allow_all, device_ind_msg, device_rsp_msg, inverter_ind_msg, inverter_rsp_msg):
    _ = config_tsun_allow_all
    m = MemoryStream(device_ind_msg, (0,))
    m.append_msg(inverter_ind_msg)
@@ -1080,7 +1173,8 @@ def test_read_two_messages(config_tsun_allow_all, device_ind_msg, device_rsp_msg
    assert m.ifc.tx_fifo.get()==b''
    m.close()

-def test_read_two_messages2(config_tsun_allow_all, inverter_ind_msg, inverter_ind_msg_81, inverter_rsp_msg, inverter_rsp_msg_81):
+@pytest.mark.asyncio
+async def test_read_two_messages2(my_loop, config_tsun_allow_all, inverter_ind_msg, inverter_ind_msg_81, inverter_rsp_msg, inverter_rsp_msg_81):
    _ = config_tsun_allow_all
    m = MemoryStream(inverter_ind_msg, (0,))
    m.append_msg(inverter_ind_msg_81)
@@ -1105,7 +1199,8 @@ def test_read_two_messages2(config_tsun_allow_all, inverter_ind_msg, inverter_in
    assert m.ifc.tx_fifo.get()==b''
    m.close()

-def test_read_two_messages3(config_tsun_allow_all, device_ind_msg2, device_rsp_msg2, inverter_ind_msg, inverter_rsp_msg):
+@pytest.mark.asyncio
+async def test_read_two_messages3(my_loop, config_tsun_allow_all, device_ind_msg2, device_rsp_msg2, inverter_ind_msg, inverter_rsp_msg):
    # test device message received after the inverter masg
    _ = config_tsun_allow_all
    m = MemoryStream(inverter_ind_msg, (0,))
@@ -1134,7 +1229,8 @@ def test_read_two_messages3(config_tsun_allow_all, device_ind_msg2, device_rsp_m
    assert m.ifc.tx_fifo.get()==b''
    m.close()

-def test_read_two_messages4(config_tsun_dcu1, dcu_dev_ind_msg, dcu_dev_rsp_msg, dcu_data_ind_msg, dcu_data_rsp_msg):
+@pytest.mark.asyncio
+async def test_read_two_messages4(my_loop, config_tsun_dcu1, dcu_dev_ind_msg, dcu_dev_rsp_msg, dcu_data_ind_msg, dcu_data_rsp_msg):
    _ = config_tsun_dcu1
    m = MemoryStream(dcu_dev_ind_msg, (0,))
    m.append_msg(dcu_data_ind_msg)
@@ -1162,7 +1258,8 @@ def test_read_two_messages4(config_tsun_dcu1, dcu_dev_ind_msg, dcu_dev_rsp_msg,
    assert m.ifc.tx_fifo.get()==b''
    m.close()

-def test_unkown_frame_code(config_tsun_inv1, inverter_ind_msg_81, inverter_rsp_msg_81):
+@pytest.mark.asyncio
+async def test_unkown_frame_code(my_loop, config_tsun_inv1, inverter_ind_msg_81, inverter_rsp_msg_81):
    _ = config_tsun_inv1
    m = MemoryStream(inverter_ind_msg_81, (0,))
    m.read()         # read complete msg, and dispatch msg
@@ -1180,7 +1277,8 @@ def test_unkown_frame_code(config_tsun_inv1, inverter_ind_msg_81, inverter_rsp_m
    assert m.db.stat['proxy']['Invalid_Msg_Format'] == 0
    m.close()

-def test_unkown_message(config_tsun_inv1, unknown_msg):
+@pytest.mark.asyncio
+async def test_unkown_message(my_loop, config_tsun_inv1, unknown_msg):
    _ = config_tsun_inv1
    m = MemoryStream(unknown_msg, (0,))
    m.read()         # read complete msg, and dispatch msg
@@ -1198,7 +1296,8 @@ def test_unkown_message(config_tsun_inv1, unknown_msg):
    assert m.db.stat['proxy']['Invalid_Msg_Format'] == 0
    m.close()

-def test_device_rsp(config_tsun_inv1, device_rsp_msg):
+@pytest.mark.asyncio
+async def test_device_rsp(my_loop, config_tsun_inv1, device_rsp_msg):
    _ = config_tsun_inv1
    m = MemoryStream(device_rsp_msg, (0,), False)
    m.read()         # read complete msg, and dispatch msg
@@ -1216,7 +1315,8 @@ def test_device_rsp(config_tsun_inv1, device_rsp_msg):
    assert m.db.stat['proxy']['Invalid_Msg_Format'] == 0
    m.close()

-def test_inverter_rsp(config_tsun_inv1, inverter_rsp_msg):
+@pytest.mark.asyncio
+async def test_inverter_rsp(my_loop, config_tsun_inv1, inverter_rsp_msg):
    _ = config_tsun_inv1
    m = MemoryStream(inverter_rsp_msg, (0,), False)
    m.read()         # read complete msg, and dispatch msg
@@ -1234,7 +1334,8 @@ def test_inverter_rsp(config_tsun_inv1, inverter_rsp_msg):
    assert m.db.stat['proxy']['Invalid_Msg_Format'] == 0
    m.close()

-def test_heartbeat_ind(config_tsun_inv1, heartbeat_ind_msg, heartbeat_rsp_msg):
+@pytest.mark.asyncio
+async def test_heartbeat_ind(my_loop, config_tsun_inv1, heartbeat_ind_msg, heartbeat_rsp_msg):
    _ = config_tsun_inv1
    m = MemoryStream(heartbeat_ind_msg, (0,))
    m.read()         # read complete msg, and dispatch msg
@@ -1251,7 +1352,8 @@ def test_heartbeat_ind(config_tsun_inv1, heartbeat_ind_msg, heartbeat_rsp_msg):
    assert m.db.stat['proxy']['Invalid_Msg_Format'] == 0
    m.close()

-def test_heartbeat_ind2(config_tsun_inv1, heartbeat_ind_msg, heartbeat_rsp_msg):
+@pytest.mark.asyncio
+async def test_heartbeat_ind2(my_loop, config_tsun_inv1, heartbeat_ind_msg, heartbeat_rsp_msg):
    _ = config_tsun_inv1
    m = MemoryStream(heartbeat_ind_msg, (0,))
    m.no_forwarding = True
@@ -1269,7 +1371,8 @@ def test_heartbeat_ind2(config_tsun_inv1, heartbeat_ind_msg, heartbeat_rsp_msg):
    assert m.db.stat['proxy']['Invalid_Msg_Format'] == 0
    m.close()

-def test_heartbeat_rsp(config_tsun_inv1, heartbeat_rsp_msg):
+@pytest.mark.asyncio
+async def test_heartbeat_rsp(my_loop, config_tsun_inv1, heartbeat_rsp_msg):
    _ = config_tsun_inv1
    m = MemoryStream(heartbeat_rsp_msg, (0,), False)
    m.read()         # read complete msg, and dispatch msg
@@ -1287,7 +1390,8 @@ def test_heartbeat_rsp(config_tsun_inv1, heartbeat_rsp_msg):
    assert m.db.stat['proxy']['Invalid_Msg_Format'] == 0
    m.close()

-def test_sync_start_ind(config_tsun_inv1, sync_start_ind_msg, sync_start_rsp_msg, sync_start_fwd_msg):
+@pytest.mark.asyncio
+async def test_sync_start_ind(my_loop, config_tsun_inv1, sync_start_ind_msg, sync_start_rsp_msg, sync_start_fwd_msg):
    _ = config_tsun_inv1
    m = MemoryStream(sync_start_ind_msg, (0,))
    m.read()         # read complete msg, and dispatch msg
@@ -1310,7 +1414,8 @@ def test_sync_start_ind(config_tsun_inv1, sync_start_ind_msg, sync_start_rsp_msg

    m.close()

-def test_sync_start_rsp(config_tsun_inv1, sync_start_rsp_msg):
+@pytest.mark.asyncio
+async def test_sync_start_rsp(my_loop, config_tsun_inv1, sync_start_rsp_msg):
    _ = config_tsun_inv1
    m = MemoryStream(sync_start_rsp_msg, (0,), False)
    m.read()         # read complete msg, and dispatch msg
@@ -1328,7 +1433,8 @@ def test_sync_start_rsp(config_tsun_inv1, sync_start_rsp_msg):
    assert m.db.stat['proxy']['Invalid_Msg_Format'] == 0
    m.close()

-def test_sync_end_ind(config_tsun_inv1, sync_end_ind_msg, sync_end_rsp_msg):
+@pytest.mark.asyncio
+async def test_sync_end_ind(my_loop, config_tsun_inv1, sync_end_ind_msg, sync_end_rsp_msg):
    _ = config_tsun_inv1
    m = MemoryStream(sync_end_ind_msg, (0,))
    m.read()         # read complete msg, and dispatch msg
@@ -1345,7 +1451,8 @@ def test_sync_end_ind(config_tsun_inv1, sync_end_ind_msg, sync_end_rsp_msg):
    assert m.db.stat['proxy']['Invalid_Msg_Format'] == 0
    m.close()

-def test_sync_end_rsp(config_tsun_inv1, sync_end_rsp_msg):
+@pytest.mark.asyncio
+async def test_sync_end_rsp(my_loop, config_tsun_inv1, sync_end_rsp_msg):
    _ = config_tsun_inv1
    m = MemoryStream(sync_end_rsp_msg, (0,), False)
    m.read()         # read complete msg, and dispatch msg
@@ -1363,7 +1470,8 @@ def test_sync_end_rsp(config_tsun_inv1, sync_end_rsp_msg):
    assert m.db.stat['proxy']['Invalid_Msg_Format'] == 0
    m.close()

-def test_build_modell_600(config_tsun_allow_all, inverter_ind_msg):
+@pytest.mark.asyncio
+async def test_build_modell_600(my_loop, config_tsun_allow_all, inverter_ind_msg):
    _ = config_tsun_allow_all
    m = MemoryStream(inverter_ind_msg, (0,))
    assert 0 == m.sensor_list
@@ -1373,6 +1481,7 @@ def test_build_modell_600(config_tsun_allow_all, inverter_ind_msg):
    m.read()         # read complete msg, and dispatch msg
    assert 2000 == m.db.get_db_value(Register.MAX_DESIGNED_POWER, 0)
    assert 600 == m.db.get_db_value(Register.RATED_POWER, 0)
+    assert 4 == m.db.get_db_value(Register.NO_INPUTS, 0)
    assert 'TSOL-MS2000(600)' == m.db.get_db_value(Register.EQUIPMENT_MODEL, 0)
    assert '02b0' == m.db.get_db_value(Register.SENSOR_LIST, None)
    assert 0 == m.sensor_list   # must not been set by an inverter data ind
@@ -1382,7 +1491,8 @@ def test_build_modell_600(config_tsun_allow_all, inverter_ind_msg):
    assert m.ifc.tx_fifo.get()==b''
    m.close()

-def test_build_modell_1600(config_tsun_allow_all, inverter_ind_msg1600):
+@pytest.mark.asyncio
+async def test_build_modell_1600(my_loop, config_tsun_allow_all, inverter_ind_msg1600):
    _ = config_tsun_allow_all
    m = MemoryStream(inverter_ind_msg1600, (0,))
    assert 0 == m.db.get_db_value(Register.MAX_DESIGNED_POWER, 0)
@@ -1391,10 +1501,12 @@ def test_build_modell_1600(config_tsun_allow_all, inverter_ind_msg1600):
    m.read()         # read complete msg, and dispatch msg
    assert 1600 == m.db.get_db_value(Register.MAX_DESIGNED_POWER, 0)
    assert 1600 == m.db.get_db_value(Register.RATED_POWER, 0)
+    assert 4 == m.db.get_db_value(Register.NO_INPUTS, 0)
    assert 'TSOL-MS1600' == m.db.get_db_value(Register.EQUIPMENT_MODEL, 0)
    m.close()

-def test_build_modell_1800(config_tsun_allow_all, inverter_ind_msg1800):
+@pytest.mark.asyncio
+async def test_build_modell_1800(my_loop, config_tsun_allow_all, inverter_ind_msg1800):
    _ = config_tsun_allow_all
    m = MemoryStream(inverter_ind_msg1800, (0,))
    assert 0 == m.db.get_db_value(Register.MAX_DESIGNED_POWER, 0)
@@ -1403,10 +1515,12 @@ def test_build_modell_1800(config_tsun_allow_all, inverter_ind_msg1800):
    m.read()         # read complete msg, and dispatch msg
    assert 1800 == m.db.get_db_value(Register.MAX_DESIGNED_POWER, 0)
    assert 1800 == m.db.get_db_value(Register.RATED_POWER, 0)
+    assert 4 == m.db.get_db_value(Register.NO_INPUTS, 0)
    assert 'TSOL-MS1800' == m.db.get_db_value(Register.EQUIPMENT_MODEL, 0)
    m.close()

-def test_build_modell_2000(config_tsun_allow_all, inverter_ind_msg2000):
+@pytest.mark.asyncio
+async def test_build_modell_2000(my_loop, config_tsun_allow_all, inverter_ind_msg2000):
    _ = config_tsun_allow_all
    m = MemoryStream(inverter_ind_msg2000, (0,))
    assert 0 == m.db.get_db_value(Register.MAX_DESIGNED_POWER, 0)
@@ -1415,10 +1529,12 @@ def test_build_modell_2000(config_tsun_allow_all, inverter_ind_msg2000):
    m.read()         # read complete msg, and dispatch msg
    assert 2000 == m.db.get_db_value(Register.MAX_DESIGNED_POWER, 0)
    assert 2000 == m.db.get_db_value(Register.RATED_POWER, 0)
+    assert 4 == m.db.get_db_value(Register.NO_INPUTS, 0)
    assert 'TSOL-MS2000' == m.db.get_db_value(Register.EQUIPMENT_MODEL, 0)
    m.close()

-def test_build_modell_800(config_tsun_allow_all, inverter_ind_msg800):
+@pytest.mark.asyncio
+async def test_build_modell_800(my_loop, config_tsun_allow_all, inverter_ind_msg800):
    _ = config_tsun_allow_all
    m = MemoryStream(inverter_ind_msg800, (0,))
    assert 0 == m.db.get_db_value(Register.MAX_DESIGNED_POWER, 0)
@@ -1427,10 +1543,26 @@ def test_build_modell_800(config_tsun_allow_all, inverter_ind_msg800):
    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 2 == m.db.get_db_value(Register.NO_INPUTS, 0)
+    assert 'TSOL-MS800' == m.db.get_db_value(Register.EQUIPMENT_MODEL, 0)
+    m.close()
+
+@pytest.mark.asyncio
+async def test_build_modell_900(my_loop, config_tsun_allow_all, inverter_ind_msg900):
+    _ = config_tsun_allow_all
+    m = MemoryStream(inverter_ind_msg900, (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 900 == m.db.get_db_value(Register.MAX_DESIGNED_POWER, 0)
+    assert 900 == m.db.get_db_value(Register.RATED_POWER, 0)
+    assert 2 == m.db.get_db_value(Register.NO_INPUTS, 0)
    assert 'TSOL-MSxx00' == m.db.get_db_value(Register.EQUIPMENT_MODEL, 0)
    m.close()

-def test_build_logger_modell(config_tsun_allow_all, device_ind_msg):
+@pytest.mark.asyncio
+async def test_build_logger_modell(my_loop, config_tsun_allow_all, device_ind_msg):
    _ = config_tsun_allow_all
    m = MemoryStream(device_ind_msg, (0,))
    assert 0 == m.db.get_db_value(Register.COLLECTOR_FW_VERSION, 0)
@@ -1441,7 +1573,8 @@ def test_build_logger_modell(config_tsun_allow_all, device_ind_msg):
    assert 'V1.1.00.0B' == m.db.get_db_value(Register.COLLECTOR_FW_VERSION, 0).rstrip('\00')
    m.close()

-def test_msg_iterator():
+@pytest.mark.asyncio
+async def test_msg_iterator(my_loop, config_tsun_inv1):
    Message._registry.clear()
    m1 = SolarmanV5(None, ('test1.local', 1234), ifc=AsyncIfcImpl(), server_side=True, client_mode=False)
    m2 = SolarmanV5(None, ('test2.local', 1234), ifc=AsyncIfcImpl(), server_side=True, client_mode=False)
@@ -1462,7 +1595,8 @@ def test_msg_iterator():
    assert test1 == 1
    assert test2 == 1

-def test_proxy_counter():
+@pytest.mark.asyncio
+async def test_proxy_counter(my_loop, config_tsun_inv1):
    m = SolarmanV5(None, ('test.local', 1234), ifc=AsyncIfcImpl(), server_side=True, client_mode=False)
    assert m.new_data == {}
    m.db.stat['proxy']['Unknown_Msg'] = 0
@@ -1481,7 +1615,7 @@ def test_proxy_counter():
    m.close()

@pytest.mark.asyncio
-async def test_msg_build_modbus_req(config_tsun_inv1, device_ind_msg, device_rsp_msg, inverter_ind_msg, inverter_rsp_msg, msg_modbus_cmd):
+async def test_msg_build_modbus_req(my_loop, config_tsun_inv1, device_ind_msg, device_rsp_msg, inverter_ind_msg, inverter_rsp_msg, msg_modbus_cmd):
    _ = config_tsun_inv1
    m = MemoryStream(device_ind_msg, (0,), True)
    m.read()
@@ -1516,7 +1650,7 @@ async def test_msg_build_modbus_req(config_tsun_inv1, device_ind_msg, device_rsp
    m.close()

@pytest.mark.asyncio
-async def test_at_cmd(config_tsun_allow_all, device_ind_msg, device_rsp_msg, inverter_ind_msg, inverter_rsp_msg, at_command_ind_msg, at_command_rsp_msg):
+async def test_at_cmd(my_loop, config_tsun_allow_all, device_ind_msg, device_rsp_msg, inverter_ind_msg, inverter_rsp_msg, at_command_ind_msg, at_command_rsp_msg):
    _ = config_tsun_allow_all
    m = MemoryStream(device_ind_msg, (0,), True)
    m.read()   # read device ind
@@ -1576,7 +1710,7 @@ async def test_at_cmd(config_tsun_allow_all, device_ind_msg, device_rsp_msg, inv
    m.close()

@pytest.mark.asyncio
-async def test_at_cmd_blocked(config_tsun_allow_all, device_ind_msg, device_rsp_msg, inverter_ind_msg, inverter_rsp_msg, at_command_ind_msg):
+async def test_at_cmd_blocked(my_loop, config_tsun_allow_all, device_ind_msg, device_rsp_msg, inverter_ind_msg, inverter_rsp_msg, at_command_ind_msg):
    _ = config_tsun_allow_all
    m = MemoryStream(device_ind_msg, (0,), True)
    m.read()
@@ -1610,7 +1744,8 @@ async def test_at_cmd_blocked(config_tsun_allow_all, device_ind_msg, device_rsp_
    assert Proxy.mqtt.data == "'AT+WEBU' is forbidden"
    m.close()

-def test_at_cmd_ind(config_tsun_inv1, at_command_ind_msg, at_command_rsp_msg):
+@pytest.mark.asyncio
+async def test_at_cmd_ind(my_loop, config_tsun_inv1, at_command_ind_msg, at_command_rsp_msg):
    _ = config_tsun_inv1
    m = MemoryStream(at_command_ind_msg, (0,), False)
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
@@ -1645,7 +1780,8 @@ def test_at_cmd_ind(config_tsun_inv1, at_command_ind_msg, at_command_rsp_msg):

    m.close()

-def test_at_cmd_ind_block(config_tsun_inv1, at_command_ind_msg_block):
+@pytest.mark.asyncio
+async def test_at_cmd_ind_block(my_loop, config_tsun_inv1, at_command_ind_msg_block):
    _ = config_tsun_inv1
    m = MemoryStream(at_command_ind_msg_block, (0,), False)
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
@@ -1673,7 +1809,8 @@ def test_at_cmd_ind_block(config_tsun_inv1, at_command_ind_msg_block):
    assert Proxy.mqtt.data == ""
    m.close()

-def test_msg_at_command_rsp1(config_tsun_inv1, at_command_rsp_msg):
+@pytest.mark.asyncio
+async def test_msg_at_command_rsp1(my_loop, config_tsun_inv1, at_command_rsp_msg):
    _ = config_tsun_inv1
    m = MemoryStream(at_command_rsp_msg)
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
@@ -1692,7 +1829,8 @@ def test_msg_at_command_rsp1(config_tsun_inv1, at_command_rsp_msg):
    assert m.db.stat['proxy']['Modbus_Command'] == 0
    m.close()

-def test_msg_at_command_rsp2(config_tsun_inv1, at_command_rsp_msg):
+@pytest.mark.asyncio
+async def test_msg_at_command_rsp2(my_loop, config_tsun_inv1, at_command_rsp_msg):
    _ = config_tsun_inv1
    m = MemoryStream(at_command_rsp_msg)
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
@@ -1713,7 +1851,8 @@ def test_msg_at_command_rsp2(config_tsun_inv1, at_command_rsp_msg):
    assert Proxy.mqtt.data == "+ok"
    m.close()

-def test_msg_at_command_rsp3(config_tsun_inv1, at_command_interim_rsp_msg):
+@pytest.mark.asyncio
+async def test_msg_at_command_rsp3(my_loop, config_tsun_inv1, at_command_interim_rsp_msg):
    _ = config_tsun_inv1
    m = MemoryStream(at_command_interim_rsp_msg)
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
@@ -1738,7 +1877,8 @@ def test_msg_at_command_rsp3(config_tsun_inv1, at_command_interim_rsp_msg):
    assert Proxy.mqtt.data == ""
    m.close()

-def test_msg_modbus_req(config_tsun_inv1, msg_modbus_cmd, msg_modbus_cmd_fwd):
+@pytest.mark.asyncio
+async def test_msg_modbus_req(my_loop, config_tsun_inv1, msg_modbus_cmd, msg_modbus_cmd_fwd):
    _ = config_tsun_inv1
    m = MemoryStream(b'')
    m.snr = get_sn_int()
@@ -1766,7 +1906,8 @@ def test_msg_modbus_req(config_tsun_inv1, msg_modbus_cmd, msg_modbus_cmd_fwd):
    assert m.db.stat['proxy']['Invalid_Msg_Format'] == 0
    m.close()

-def test_msg_modbus_req_seq(config_tsun_inv1, msg_modbus_cmd_seq):
+@pytest.mark.asyncio
+async def test_msg_modbus_req_seq(my_loop, config_tsun_inv1, msg_modbus_cmd_seq):
    _ = config_tsun_inv1
    m = MemoryStream(b'')
    m.snr = get_sn_int()
@@ -1794,7 +1935,8 @@ def test_msg_modbus_req_seq(config_tsun_inv1, msg_modbus_cmd_seq):
    assert m.db.stat['proxy']['Invalid_Msg_Format'] == 0
    m.close()

-def test_msg_modbus_req2(config_tsun_inv1, msg_modbus_cmd_crc_err):
+@pytest.mark.asyncio
+async def test_msg_modbus_req2(my_loop, config_tsun_inv1, msg_modbus_cmd_crc_err):
    _ = config_tsun_inv1
    m = MemoryStream(b'')
    m.snr = get_sn_int()
@@ -1821,7 +1963,8 @@ def test_msg_modbus_req2(config_tsun_inv1, msg_modbus_cmd_crc_err):
    assert m.db.stat['proxy']['Invalid_Msg_Format'] == 1
    m.close()

-def test_msg_unknown_cmd_req(config_tsun_inv1, msg_unknown_cmd):
+@pytest.mark.asyncio
+async def test_msg_unknown_cmd_req(my_loop, config_tsun_inv1, msg_unknown_cmd):
    _ = config_tsun_inv1
    m = MemoryStream(msg_unknown_cmd, (0,), False)
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
@@ -1843,7 +1986,8 @@ def test_msg_unknown_cmd_req(config_tsun_inv1, msg_unknown_cmd):
    assert m.db.stat['proxy']['Invalid_Msg_Format'] == 0
    m.close()

-def test_msg_modbus_rsp1(config_tsun_inv1, msg_modbus_rsp):
+@pytest.mark.asyncio
+async def test_msg_modbus_rsp1(my_loop, config_tsun_inv1, msg_modbus_rsp):
    '''Modbus response without a valid Modbus request must be dropped'''
    _ = config_tsun_inv1
    m = MemoryStream(msg_modbus_rsp)
@@ -1862,7 +2006,8 @@ def test_msg_modbus_rsp1(config_tsun_inv1, msg_modbus_rsp):
    assert m.db.stat['proxy']['Modbus_Command'] == 0
    m.close()

-def test_msg_modbus_rsp2(config_tsun_inv1, msg_modbus_rsp):
+@pytest.mark.asyncio
+async def test_msg_modbus_rsp2(my_loop, config_tsun_inv1, msg_modbus_rsp):
    '''Modbus response with a valid Modbus request must be forwarded'''
    _ = config_tsun_inv1  # setup config structure
    m = MemoryStream(msg_modbus_rsp)
@@ -1899,7 +2044,8 @@ def test_msg_modbus_rsp2(config_tsun_inv1, msg_modbus_rsp):

    m.close()

-def test_msg_modbus_rsp3(config_tsun_inv1, msg_modbus_rsp):
+@pytest.mark.asyncio
+async def test_msg_modbus_rsp3(my_loop, config_tsun_inv1, msg_modbus_rsp):
    '''Modbus response with a valid Modbus request must be forwarded'''
    _ = config_tsun_inv1
    m = MemoryStream(msg_modbus_rsp)
@@ -1935,7 +2081,8 @@ def test_msg_modbus_rsp3(config_tsun_inv1, msg_modbus_rsp):

    m.close()

-def test_msg_unknown_rsp(config_tsun_inv1, msg_unknown_cmd_rsp):
+@pytest.mark.asyncio
+async def test_msg_unknown_rsp(my_loop, config_tsun_inv1, msg_unknown_cmd_rsp):
    _ = config_tsun_inv1
    m = MemoryStream(msg_unknown_cmd_rsp)
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
@@ -1953,7 +2100,8 @@ def test_msg_unknown_rsp(config_tsun_inv1, msg_unknown_cmd_rsp):
    assert m.db.stat['proxy']['Modbus_Command'] == 0
    m.close()

-def test_msg_modbus_invalid(config_tsun_inv1, msg_modbus_invalid):
+@pytest.mark.asyncio
+async def test_msg_modbus_invalid(my_loop, config_tsun_inv1, msg_modbus_invalid):
    _ = config_tsun_inv1
    m = MemoryStream(msg_modbus_invalid, (0,), False)
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
@@ -1967,7 +2115,8 @@ def test_msg_modbus_invalid(config_tsun_inv1, msg_modbus_invalid):
    assert m.db.stat['proxy']['Modbus_Command'] == 0
    m.close()

-def test_msg_modbus_fragment(config_tsun_inv1, msg_modbus_rsp):
+@pytest.mark.asyncio
+async def test_msg_modbus_fragment(my_loop, config_tsun_inv1, msg_modbus_rsp):
    _ = config_tsun_inv1
    # receive more bytes than expected (7 bytes from the next msg)
    m = MemoryStream(msg_modbus_rsp+b'\x00\x00\x00\x45\x10\x52\x31', (0,))
@@ -1993,7 +2142,7 @@ def test_msg_modbus_fragment(config_tsun_inv1, msg_modbus_rsp):
    m.close()

@pytest.mark.asyncio
-async def test_modbus_polling(config_tsun_inv1, heartbeat_ind_msg, heartbeat_rsp_msg):
+async def test_modbus_polling(my_loop, config_tsun_inv1, heartbeat_ind_msg, heartbeat_rsp_msg):
    _ = config_tsun_inv1
    assert asyncio.get_running_loop()
    m = MemoryStream(heartbeat_ind_msg, (0,))
@@ -2106,7 +2255,62 @@ async def test_modbus_scaning(config_tsun_scan, heartbeat_ind_msg, heartbeat_rsp
    m.close()

@pytest.mark.asyncio
-async def test_start_client_mode(config_tsun_inv1, str_test_ip):
+async def test_modbus_scaning_inv_rsp(config_tsun_scan, heartbeat_ind_msg, heartbeat_rsp_msg, msg_modbus_rsp_mb_4):
+    _ = config_tsun_scan
+    assert asyncio.get_running_loop()
+
+    m = MemoryStream(heartbeat_ind_msg, (0x15,0x56,0))
+    m.append_msg(msg_modbus_rsp_mb_4)
+    assert m.mb_scan == False
+    assert asyncio.get_running_loop() == m.mb_timer.loop
+    m.db.stat['proxy']['Unknown_Ctrl'] = 0
+    assert m.mb_timer.tim == None
+    m.read()         # read complete msg, and dispatch msg
+    assert m.mb_scan == True
+    assert m.mb_start_reg == 0xff80
+    assert m.mb_step == 0x40
+    assert m.mb_bytes == 0x14
+    assert asyncio.get_running_loop() == m.mb_timer.loop
+ 
+    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
+    assert m.msg_count == 1
+    assert m.snr == 2070233889
+    assert m.control == 0x4710
+     
+    assert m.msg_recvd[0]['control']==0x4710
+    assert m.msg_recvd[0]['seq']=='84:11'
+    assert m.msg_recvd[0]['data_len']==0x1
+
+    assert m.ifc.tx_fifo.get()==heartbeat_rsp_msg
+    assert m.ifc.fwd_fifo.get()==heartbeat_ind_msg
+    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
+
+    m.ifc.tx_clear() # clear send buffer for next test
+    assert isclose(m.mb_timeout, 0.5)
+    assert next(m.mb_timer.exp_count) == 0
+    
+    await asyncio.sleep(0.5)
+    assert m.sent_pdu==b'\xa5\x17\x00\x10E\x12\x84!Ce{\x02\xb0\x02\x00\x00\x00\x00\x00\x00' \
+                       b'\x00\x00\x00\x00\x00\x00\x01\x03\xff\xc0\x00\x14\x75\xed\x33\x15'
+    assert m.ifc.tx_fifo.get()==b''
+
+    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 == 2
+    assert m.msg_recvd[1]['control']==0x1510
+    assert m.msg_recvd[1]['seq']=='03:03'
+    assert m.msg_recvd[1]['data_len']==0x3b
+    assert m.mb.last_addr == 1
+    assert m.mb.last_fcode == 3   
+    assert m.mb.last_reg == 0xffc0   # mb_start_reg + mb_step
+    assert m.mb.last_len == 20
+    assert m.mb.err == 3
+
+    assert next(m.mb_timer.exp_count) == 2
+    m.close()
+
+@pytest.mark.asyncio
+async def test_start_client_mode(my_loop, config_tsun_inv1, str_test_ip):
    _ = config_tsun_inv1
    assert asyncio.get_running_loop()
    m = MemoryStream(b'')
@@ -2210,7 +2414,8 @@ async def test_start_client_mode_scan(config_tsun_scan_dcu, str_test_ip, dcu_mod
    
    m.close()

-def test_timeout(config_tsun_inv1):
+@pytest.mark.asyncio
+async def test_timeout(my_loop, config_tsun_inv1):
    _ = config_tsun_inv1
    m = MemoryStream(b'')
    assert m.state == State.init
@@ -2223,7 +2428,8 @@ def test_timeout(config_tsun_inv1):
    m.state = State.closed
    m.close()

-def test_fnc_dispatch():
+@pytest.mark.asyncio
+async def test_fnc_dispatch(my_loop, config_tsun_inv1):
    def msg():
        return
    
@@ -2244,7 +2450,8 @@ def test_fnc_dispatch():
    assert _obj == m.msg_unknown
    assert _str == "'msg_unknown'"

-def test_timestamp():
+@pytest.mark.asyncio
+async def test_timestamp(my_loop, config_tsun_inv1):
    m = MemoryStream(b'')
    ts = m._timestamp()
    ts_emu = m._emu_timestamp()
@@ -2271,7 +2478,7 @@ class InverterTest(InverterBase):


@pytest.mark.asyncio
-async def test_proxy_at_cmd(config_tsun_inv1, patch_open_connection, at_command_ind_msg, at_command_rsp_msg):
+async def test_proxy_at_cmd(my_loop, config_tsun_inv1, patch_open_connection, at_command_ind_msg, at_command_rsp_msg):
    _ = config_tsun_inv1
    _ = patch_open_connection
    assert asyncio.get_running_loop()
@@ -2309,7 +2516,7 @@ async def test_proxy_at_cmd(config_tsun_inv1, patch_open_connection, at_command_
        assert Proxy.mqtt.data == ""

@pytest.mark.asyncio
-async def test_proxy_at_blocked(config_tsun_inv1, patch_open_connection, at_command_ind_msg_block, at_command_rsp_msg):
+async def test_proxy_at_blocked(my_loop, config_tsun_inv1, patch_open_connection, at_command_ind_msg_block, at_command_rsp_msg):
    _ = config_tsun_inv1
    _ = patch_open_connection
    assert asyncio.get_running_loop()
@@ -2345,3 +2552,124 @@ async def test_proxy_at_blocked(config_tsun_inv1, patch_open_connection, at_comm

        assert Proxy.mqtt.key == 'tsun/inv1/at_resp'
        assert Proxy.mqtt.data == "+ok"
+
+@pytest.mark.asyncio
+async def test_dcu_cmd(my_loop, config_tsun_allow_all, dcu_dev_ind_msg, dcu_dev_rsp_msg, dcu_data_ind_msg, dcu_data_rsp_msg, dcu_command_ind_msg, dcu_command_rsp_msg):
+    '''test dcu_power command fpr a DCU device with sensor 0x3026'''
+    _ = config_tsun_allow_all
+    m = MemoryStream(dcu_dev_ind_msg, (0,), True)
+    m.read()   # read device ind
+    assert m.control == 0x4110
+    assert str(m.seq) == '01:92'
+    assert m.ifc.tx_fifo.get()==dcu_dev_rsp_msg
+    assert m.ifc.fwd_fifo.get()==dcu_dev_ind_msg
+
+    m.send_dcu_cmd(b'\x01\x01\x06\x01\x00\x01\x03\xe8')
+    assert m.ifc.tx_fifo.get()==b''
+    assert m.ifc.fwd_fifo.get()==b''
+    assert m.sent_pdu == b''
+    assert str(m.seq) == '01:92'
+    assert Proxy.mqtt.key == ''
+    assert Proxy.mqtt.data == ""
+
+    m.append_msg(dcu_data_ind_msg)
+    m.read() # read inverter ind
+    assert m.control == 0x4210
+    assert str(m.seq) == '02:93'
+    assert m.ifc.tx_fifo.get()==dcu_data_rsp_msg
+    assert m.ifc.fwd_fifo.get()==dcu_data_ind_msg
+    
+    m.send_dcu_cmd(b'\x01\x01\x06\x01\x00\x01\x03\xe8')
+    assert m.ifc.fwd_fifo.get() == b''
+    assert m.ifc.tx_fifo.get()== b''
+    assert m.sent_pdu == dcu_command_ind_msg
+    m.sent_pdu = bytearray()
+
+    assert str(m.seq) == '02:94'
+    assert Proxy.mqtt.key == ''
+    assert Proxy.mqtt.data == ""
+
+    m.append_msg(dcu_command_rsp_msg)
+    m.read() # read at resp
+    assert m.control == 0x1510
+    assert str(m.seq) == '03:94'
+    assert m.ifc.rx_get()==b''
+    assert m.ifc.tx_fifo.get()==b''
+    assert m.ifc.fwd_fifo.get()==b''
+    assert Proxy.mqtt.key == 'tsun/dcu_resp'
+    assert Proxy.mqtt.data == "+ok"
+    Proxy.mqtt.clear()  # clear last test result
+
+@pytest.mark.asyncio
+async def test_dcu_cmd_not_supported(my_loop, config_tsun_allow_all, device_ind_msg, device_rsp_msg, inverter_ind_msg, inverter_rsp_msg):
+    '''test that an inverter don't accept the dcu_power command'''
+    _ = config_tsun_allow_all
+    m = MemoryStream(device_ind_msg, (0,), True)
+    m.read()   # read device ind
+    assert m.control == 0x4110
+    assert str(m.seq) == '01:01'
+    assert m.ifc.tx_fifo.get()==device_rsp_msg
+    assert m.ifc.fwd_fifo.get()==device_ind_msg
+
+    m.send_dcu_cmd(b'\x01\x01\x06\x01\x00\x01\x03\xe8')
+    assert m.ifc.tx_fifo.get()==b''
+    assert m.ifc.fwd_fifo.get()==b''
+    assert m.sent_pdu == b''
+    assert str(m.seq) == '01:01'
+    assert Proxy.mqtt.key == ''
+    assert Proxy.mqtt.data == ""
+
+    m.append_msg(inverter_ind_msg)
+    m.read() # read inverter ind
+    assert m.control == 0x4210
+    assert str(m.seq) == '02:02'
+    assert m.ifc.tx_fifo.get()==inverter_rsp_msg
+    assert m.ifc.fwd_fifo.get()==inverter_ind_msg
+    
+    m.send_dcu_cmd(b'\x01\x01\x06\x01\x00\x01\x03\xe8')
+    assert m.ifc.fwd_fifo.get() == b''
+    assert m.ifc.tx_fifo.get()== b''
+    assert m.sent_pdu == b''
+    Proxy.mqtt.clear()  # clear last test result
+
+@pytest.mark.asyncio
+async def test_proxy_dcu_cmd(my_loop, config_tsun_dcu1, patch_open_connection, dcu_command_ind_msg, dcu_command_rsp_msg):
+    _ = config_tsun_inv1
+    _ = patch_open_connection
+    assert asyncio.get_running_loop()
+
+    with InverterTest(FakeReader(), FakeWriter(), client_mode=False) as inverter:
+        await inverter.create_remote()
+        await asyncio.sleep(0)
+        r = inverter.remote.stream
+        l = inverter.local.stream
+
+        l.db.stat['proxy']['DCU_Command'] = 0
+        l.db.stat['proxy']['AT_Command'] = 0
+        l.db.stat['proxy']['Unknown_Ctrl'] = 0
+        l.db.stat['proxy']['AT_Command_Blocked'] = 0
+        l.db.stat['proxy']['Modbus_Command'] = 0
+        inverter.forward_dcu_cmd_resp = False
+        r.append_msg(dcu_command_ind_msg)
+        r.read()         # read complete msg, and dispatch msg
+        assert inverter.forward_dcu_cmd_resp
+        inverter.forward(r,l)
+
+        assert l.ifc.tx_fifo.get()==dcu_command_ind_msg
+
+        assert l.db.stat['proxy']['Invalid_Msg_Format'] == 0
+        assert l.db.stat['proxy']['DCU_Command'] == 1
+        assert l.db.stat['proxy']['AT_Command'] == 0
+        assert l.db.stat['proxy']['AT_Command_Blocked'] == 0
+        assert l.db.stat['proxy']['Modbus_Command'] == 0
+        assert 2 == l.db.get_db_value(Register.NO_INPUTS, 0)
+
+        l.append_msg(dcu_command_rsp_msg)
+        l.read() # read at resp
+        assert l.ifc.fwd_fifo.peek()==dcu_command_rsp_msg
+        inverter.forward(l,r)
+        assert r.ifc.tx_fifo.get()==dcu_command_rsp_msg
+
+        assert Proxy.mqtt.key == ''
+        assert Proxy.mqtt.data == ""
+
--- a/app/tests/test_solarman_emu.py
+++ b/app/tests/test_solarman_emu.py
@@ -9,6 +9,9 @@ from infos import Infos, Register
 from test_solarman import FakeIfc, FakeInverter, MemoryStream, get_sn_int, get_sn, correct_checksum, config_tsun_inv1, msg_modbus_rsp
 from test_infos_g3p import str_test_ip, bytes_test_ip

+
+pytest_plugins = ('pytest_asyncio',)
+
 timestamp = 0x3224c8bc

 class InvStream(MemoryStream):
@@ -125,17 +128,17 @@ def heartbeat_ind():
    msg  = b'\xa5\x01\x00\x10G\x00\x01\x00\x00\x00\x00\x00Y\x15'
    return msg

-def test_emu_init_close():
-    # received a message with wrong start byte plus an valid message
-    # the complete receive buffer must be cleared to 
-    # find the next valid message
+@pytest.mark.asyncio
+async def test_emu_init_close(my_loop, config_tsun_inv1):
+    _ = config_tsun_inv1
+    assert asyncio.get_running_loop()
    inv = InvStream()
    cld = CldStream(inv)
    cld.close()


@pytest.mark.asyncio
-async def test_emu_start(config_tsun_inv1, msg_modbus_rsp, str_test_ip, device_ind_msg):
+async def test_emu_start(my_loop, config_tsun_inv1, msg_modbus_rsp, str_test_ip, device_ind_msg):
    _ = config_tsun_inv1
    assert asyncio.get_running_loop()
    inv = InvStream(msg_modbus_rsp)
@@ -152,7 +155,8 @@ async def test_emu_start(config_tsun_inv1, msg_modbus_rsp, str_test_ip, device_i
    assert inv.ifc.fwd_fifo.peek() == device_ind_msg
    cld.close()

-def test_snd_hb(config_tsun_inv1, heartbeat_ind):
+@pytest.mark.asyncio
+async def test_snd_hb(my_loop, config_tsun_inv1, heartbeat_ind):
    _ = config_tsun_inv1
    inv = InvStream()
    cld = CldStream(inv)
@@ -163,7 +167,7 @@ def test_snd_hb(config_tsun_inv1, heartbeat_ind):
    cld.close()

@pytest.mark.asyncio
-async def test_snd_inv_data(config_tsun_inv1, inverter_ind_msg, inverter_rsp_msg):
+async def test_snd_inv_data(my_loop, config_tsun_inv1, inverter_ind_msg, inverter_rsp_msg):
    _ = config_tsun_inv1
    inv = InvStream()
    inv.db.set_db_def_value(Register.INVERTER_STATUS, 1)
@@ -205,7 +209,7 @@ async def test_snd_inv_data(config_tsun_inv1, inverter_ind_msg, inverter_rsp_msg
    cld.close()

@pytest.mark.asyncio
-async def test_rcv_invalid(config_tsun_inv1, inverter_ind_msg, inverter_rsp_msg):
+async def test_rcv_invalid(my_loop, config_tsun_inv1, inverter_ind_msg, inverter_rsp_msg):
    _ = config_tsun_inv1
    inv = InvStream()
    assert asyncio.get_running_loop() == inv.mb_timer.loop
--- a/app/tests/test_talent.py
+++ b/app/tests/test_talent.py
@@ -1048,7 +1048,8 @@ def msg_inverter_ms3000_ind(): # Data indication from the controller
    msg +=  b'\x53\x00\x66'                                                      #  | S.f'
    return msg

-def test_read_message(msg_contact_info):
+@pytest.mark.asyncio
+async def test_read_message(msg_contact_info):
    Config.act_config = {'tsun':{'enabled': True}}
    m = MemoryStream(msg_contact_info, (0,))
    m.read()         # read complete msg, and dispatch msg
--- a/app/tests/test_web_route.py
+++ b/app/tests/test_web_route.py
@@ -9,13 +9,14 @@ from cnf.config import Config
 from mock import patch
 from proxy import Proxy
 import os, errno
+from os import DirEntry, stat_result
+import datetime

 pytest_plugins = ('pytest_asyncio',)

@pytest.fixture(scope="session")
 def client():
    app.secret_key = 'super secret key'
-    Web(app, '../transfer', False)
    return app.test_client()

@pytest.fixture
@@ -202,14 +203,33 @@ async def test_notes_fetch(client, config_conn):


@pytest.mark.asyncio
-async def test_file_fetch(client, config_conn):
+async def test_file_fetch(client, config_conn, monkeypatch):
    """Test the data-fetch route."""
    _ = config_conn
    assert Config.log_path == 'app/tests/log/'
+    def my_stat1(*arg):
+        stat = stat_result
+        stat.st_size = 20
+        stat.st_birthtime = datetime.datetime(2024, 1, 31, 10, 30, 15)
+        stat.st_mtime = datetime.datetime(2024, 1, 1, 1, 30, 15).timestamp()
+        return stat
+
+    monkeypatch.setattr(DirEntry, "stat", my_stat1)
    response = await client.get('/file-fetch')
    assert response.status_code == 200


+    def my_stat2(*arg):
+        stat = stat_result
+        stat.st_size = 20
+        stat.st_mtime = datetime.datetime(2024, 1, 1, 1, 30, 15).timestamp()
+        return stat
+
+    monkeypatch.setattr(DirEntry, "stat", my_stat2)
+    monkeypatch.delattr(stat_result, "st_birthtime")
+    response = await client.get('/file-fetch')
+    assert response.status_code == 200
+
@pytest.mark.asyncio
 async def test_send_file(client, config_conn):
    """Test the send-file route."""
--- a/app/translations/de/LC_MESSAGES/messages.po
+++ b/app/translations/de/LC_MESSAGES/messages.po
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: tsun-gen3-proxy 0.14.0\n"
 "Report-Msgid-Bugs-To: EMAIL@ADDRESS\n"
-"POT-Creation-Date: 2025-05-04 18:16+0200\n"
+"POT-Creation-Date: 2025-05-13 22:34+0200\n"
 "PO-Revision-Date: 2025-04-18 16:24+0200\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language: de\n"
@@ -19,30 +19,34 @@ msgstr ""
 "Content-Transfer-Encoding: 8bit\n"
 "Generated-By: Babel 2.17.0\n"

-#: src/web/conn_table.py:52 src/web/templates/base.html.j2:58
+#: src/web/conn_table.py:53 src/web/templates/base.html.j2:58
 msgid "Connections"
 msgstr "Verbindungen"

-#: src/web/conn_table.py:59
+#: src/web/conn_table.py:60
 msgid "Device-IP:Port"
 msgstr "Geräte-IP:Port"

-#: src/web/conn_table.py:59
+#: src/web/conn_table.py:60
 msgid "Device-IP"
 msgstr "Geräte-IP"

-#: src/web/conn_table.py:60 src/web/mqtt_table.py:34
+#: src/web/conn_table.py:61 src/web/mqtt_table.py:34
 msgid "Serial-No"
 msgstr "Seriennummer"

-#: src/web/conn_table.py:61
+#: src/web/conn_table.py:62
 msgid "Cloud-IP:Port"
 msgstr "Cloud-IP:Port"

-#: src/web/conn_table.py:61
+#: src/web/conn_table.py:62
 msgid "Cloud-IP"
 msgstr "Cloud-IP"

+#: src/web/log_files.py:48
+msgid "n/a"
+msgstr "keine Angabe"
+
 #: src/web/mqtt_table.py:27
 msgid "MQTT devices"
 msgstr "MQTT Geräte"
@@ -116,12 +120,12 @@ msgid "TSUN Proxy - Log Files"
 msgstr "TSUN Proxy - Log Dateien"

 #: src/web/templates/page_logging.html.j2:10
-msgid "Do you really want to delete the log file"
-msgstr "Soll die Datei wirklich gelöscht werden"
+msgid "Do you really want to delete the log file: <br>%(file)s ?"
+msgstr "Soll die Datei: <br>%(file)s<br>wirklich gelöscht werden?"

 #: src/web/templates/page_logging.html.j2:12
-msgid "Delete File</button"
-msgstr "File löschen"
+msgid "Delete File"
+msgstr "Datei löschen"

 #: src/web/templates/page_logging.html.j2:13
 msgid "Abort"
--- a/ha_addons/Makefile
+++ b/ha_addons/Makefile
@@ -192,7 +192,7 @@ $(repro_all_subdirs) :
 	mkdir -p $@

 $(repro_all_templates) : $(INST_BASE)/ha_addon_%/config.yaml: $(TEMPL)/config.jinja $(TEMPL)/%_data.json $(SRC)/.version FORCE
-	$(JINJA) --strict -D AppVersion=$(VERSION)-$* -D BuildID=$(BUILD_ID) $< $(filter %.json,$^) -o $@
+	$(JINJA) --strict -D AppVersion=$(VERSION)-$*$(RC) -D BuildID=$(BUILD_ID) $< $(filter %.json,$^) -o $@

 $(repro_all_apparmor) : $(INST_BASE)/ha_addon_%/apparmor.txt: $(TEMPL)/apparmor.jinja $(TEMPL)/%_data.json
 	$(JINJA) --strict $< $(filter %.json,$^) -o $@
--- a/ha_addons/ha_addon/Dockerfile
+++ b/ha_addons/ha_addon/Dockerfile
@@ -13,12 +13,12 @@
 # 1 Build Base Image #
 ######################

-ARG BUILD_FROM="ghcr.io/hassio-addons/base:17.2.4"
+ARG BUILD_FROM="ghcr.io/hassio-addons/base:17.2.5"
 # hadolint ignore=DL3006
 FROM $BUILD_FROM AS base

 # Installiere Python, pip und virtuelle Umgebungstools
-RUN apk add --no-cache python3=3.12.10-r0 py3-pip=24.3.1-r0 && \
+RUN apk add --no-cache python3=3.12.10-r1 py3-pip=24.3.1-r0 && \
    python -m venv /opt/venv && \
    . /opt/venv/bin/activate

--- a/ha_addons/ha_addon/rootfs/run.sh
+++ b/ha_addons/ha_addon/rootfs/run.sh
@@ -1,18 +1,28 @@
 #!/usr/bin/with-contenv bashio

-echo "Add-on environment started"
-
-echo "check for Home Assistant MQTT"
-MQTT_HOST=$(bashio::services mqtt "host")
-MQTT_PORT=$(bashio::services mqtt "port")
-MQTT_USER=$(bashio::services mqtt "username")
-MQTT_PASSWORD=$(bashio::services mqtt "password")
+bashio::log.blue "-----------------------------------------------------------"
+bashio::log.blue "run.sh: info: setup Add-on environment"
+bashio::cache.flush_all
+MQTT_HOST=""
+if bashio::supervisor.ping; then
+    bashio::log "run.sh: info: check for Home Assistant MQTT service"
+    if bashio::services.available mqtt; then
+        MQTT_HOST=$(bashio::services mqtt "host")
+        MQTT_PORT=$(bashio::services mqtt "port")
+        MQTT_USER=$(bashio::services mqtt "username")
+        MQTT_PASSWORD=$(bashio::services mqtt "password")
+    else
+        bashio::log.yellow "run.sh: info: Home Assistant MQTT service not available!"
+    fi
+else
+    bashio::log.red "run.sh: error: Home Assistant Supervisor API not available!"
+fi

 # if a MQTT was/not found, drop a note
 if [ -z "$MQTT_HOST" ]; then
-    echo "MQTT not found"
+    bashio::log.yellow "run.sh: info: MQTT config not found"
 else
-    echo "MQTT found"
+    bashio::log.green "run.sh: info: MQTT config found"
    export MQTT_HOST
    export MQTT_PORT
    export MQTT_USER
@@ -29,5 +39,6 @@ cd /home/proxy || exit

 export VERSION=$(cat /proxy-version.txt)

-echo "Start Proxyserver..."
-python3 server.py --rel_urls=True --json_config=/data/options.json  --log_path=/homeassistant/tsun-proxy/logs/ --config_path=/homeassistant/tsun-proxy/ --log_backups=2
+bashio::log.blue "run.sh: info: Start Proxyserver..."
+bashio::log.blue "-----------------------------------------------------------"
+python3 server.py --rel_urls --json_config=/data/options.json  --log_path=/homeassistant/tsun-proxy/logs/ --config_path=/homeassistant/tsun-proxy/ --log_backups=2
--- a/ha_addons/templates/rc_data.json
+++ b/ha_addons/templates/rc_data.json
@@ -2,7 +2,6 @@
 {
    "name": "TSUN-Proxy (Release Candidate)",
    "description": "MQTT Proxy for TSUN Photovoltaic Inverters",
-    "version": "rc",
    "image": "ghcr.io/s-allius/tsun-gen3-addon",
    "slug": "tsun-proxy-rc",
    "advanced": true,
Author	SHA1	Message	Date
Stefan Allius	d6d067924b	- Babel don't build new po file if only the pot creation-date was changed	2025-06-21 10:24:12 +02:00
Stefan Allius	8d789b249a	- Improve Makefile	2025-06-21 10:13:08 +02:00
renovate[bot]	f3c22c9853	Update dependency pytest to v8.4.1 (#458 ) Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>	2025-06-20 10:51:02 +02:00
renovate[bot]	460db31fa6	Update python Docker tag to v3.13.5 (#453 ) Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>	2025-06-20 10:46:35 +02:00
renovate[bot]	144c9080cb	Update dependency coverage to v7.9.1 (#454 ) Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>	2025-06-15 22:43:00 +02:00
renovate[bot]	dc1a28260e	Update dependency coverage to v7.9.0 (#450 ) Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>	2025-06-12 22:16:56 +02:00
renovate[bot]	e59529adc0	Update dependency pytest-cov to v6.2.1 (#449 ) Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>	2025-06-12 22:13:41 +02:00
renovate[bot]	8d93b2a636	Update python Docker tag to v3.13.4 (#446 ) Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>	2025-06-12 22:12:01 +02:00
renovate[bot]	01e9e70957	Update dependency pytest to v8.4.0 (#444 ) Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>	2025-06-12 22:11:37 +02:00
renovate[bot]	1721bbebe2	Update dependency pytest-asyncio to v1 (#433 ) * Update dependency pytest-asyncio to v1 * set version to 0.15.0 * Update dependency pytest-asyncio to v1 --------- Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com> Co-authored-by: Stefan Allius <stefan.allius@t-online.de>	2025-05-31 23:55:50 +02:00
Stefan Allius	41168fbb4d	S allius/issue438 (#442 ) * Update change log (#436) * S allius/issue427 (#434) * mock the aiomqtt library and increse coverage * test inv response for a mb scan request * improve test coverage * S allius/issue427 (#435) * mock the aiomqtt library and increse coverage * test inv response for a mb scan request * improve test coverage * improve test case * version 0.14.0 * handle missing MQTT addon - we have to check if the supervisor API and a MQTT broker add-on is installed. If not we assume the user has an external MQTT broker * handle missing MQTT addon * run also on releases/* branch * avoid printing of the MQTT config inkl. password * revise the log outputs * update version 0.14.1 * new version 0.14.1	2025-05-31 23:30:16 +02:00
Stefan Allius	25ba6ef8f3	version 0.14.0 (#441 )	2025-05-31 23:27:49 +02:00
Stefan Allius	2a40bd7b71	S allius/issue427 (#435 ) * mock the aiomqtt library and increse coverage * test inv response for a mb scan request * improve test coverage * improve test case	2025-05-26 23:42:13 +02:00
Stefan Allius	95182d2196	S allius/issue427 (#434 ) * mock the aiomqtt library and increse coverage * test inv response for a mb scan request * improve test coverage	2025-05-26 23:16:33 +02:00
Stefan Allius	f1da544c88	S allius/update python (#431 ) * S allius/update python (#430) * add-on: bump python to version 3.12.10-r1 (#429)	2025-05-25 03:52:59 +02:00
Stefan Allius	7365980c2f	S allius/update python (#430 ) * add-on: bump python to version 3.12.10-r1 (#429)	2025-05-25 03:21:21 +02:00
Stefan Allius	11e3226460	add-on: bump python to version 3.12.10-r1 (#429 )	2025-05-25 02:27:22 +02:00
Stefan Allius	f69f9c6d63	mock the aiomqtt library and increse coverage (#428 ) * mock the aiomqtt library and increse coverage * test inv response for a mb scan request	2025-05-25 01:34:22 +02:00
Stefan Allius	321c66838d	set no of pv modules for MS800 GEN3PLUS inverters (#424 ) * set no of pv modules for MS800 GEN3PLUS inverters * fix unit test * increase test coverage * change the PV module handling - in default we set the number of modules now to two. So with the first data from the inverter we only register two modules. After we determine the inverter module, the number can increase to four and more PV modules will be registered. With the default value of 4, we register always 4 modules and can't reduce the number of areas when we detect that the inverter only supoorts two PV modules	2025-05-24 23:12:55 +02:00
renovate[bot]	0a8e708735	Update dependency coverage to v7.8.2 (#426 ) Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>	2025-05-23 22:53:24 +02:00
Stefan Allius	bd88647f0b	fix the paths to copy the config.example.toml file (#425 )	2025-05-22 21:29:41 +02:00
renovate[bot]	bb2250bca1	Update dependency coverage to v7.8.1 (#419 ) Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>	2025-05-21 20:51:16 +02:00
Stefan Allius	e25aa5f922	S allius/issue397 (#418 ) * change icon for notes	2025-05-20 23:40:26 +02:00
Stefan Allius	46945d55e1	add dcu_power MQTT topic (#416 ) * add dcu_power MQTT topic * add DCU_COMMAND counter * test invalid dcu_power values * handle and test DCU Command responses * test dcu commands from the TSUN cloud * cleanup MQTT topic handling * update changelog * test MQTT error and exception handling * increase test coverage * test dispatcher exceptions * fix full_topic definition in dispatch test	2025-05-20 19:54:24 +02:00
Stefan Allius	c1bdec0844	S allius/issue396 (#413 ) * improve translation of delete modal	2025-05-13 22:53:37 +02:00
Stefan Allius	4371f3dadb	S allius/issue396 (#412 ) * add title to table icons * optimize datetime formatting * change icons * translate n/a	2025-05-13 21:38:33 +02:00
Stefan Allius	907dcb1623	S allius/issue409 (#411 ) * scan log files for timestamp as creating timestamp * increase test coverage * add an empty file for unit tests - the empty file is needed for unit tests to force an exception on the try to scan the first line for an timestamp * set timezone of scanned creation time	2025-05-13 00:38:06 +02:00
renovate[bot]	2292c5e39e	Update ghcr.io/hassio-addons/base Docker tag to v17.2.5 (#407 ) * Update ghcr.io/hassio-addons/base Docker tag to v17.2.5 --------- Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com> Co-authored-by: Stefan Allius <stefan.allius@t-online.de>	2025-05-10 20:26:00 +02:00
Stefan Allius	48965ffda9	S allius/issue398 (#406 ) * setup logger for hypercorn and dashboard * use logger.ini to setup dashboard logger * workaround: restore the hypercorn logger config - quart/hyercorn overwrites the logger config. as a workaround we restore the config at the beginning of a request * fix the hypercorn log handler only once * change proxy into a ASGI application - move Quart init from server.py into app.py - create Server class for config and loggin setup - restore hypercorn logging configuration after start of Quart/Hypercorn * move get_log_level into Server class * define config in test_emu_init_close * remove Web() instance from the testcase - with importing app.py The blueprint Web() will automatically created and a second call in test- cases must avoided * add unit tests * move code from app.py into server.py * test the init_logging_system() method * add HypercornLogHndl tests * fix deprecated pytest async warning - Cleanup pending async tasks - fix deprecated warning about event_loop * add unit test for error handling in build_config() * coverage: ignore quart template files * check print output in test_save_and_restore * update changelog	2025-05-10 19:32:13 +02:00
@@ -1 +1 @@
 .13.2
 .13.5
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 .14.0
 .15.0