S allius/update python (#430)

* add-on: bump python to version 3.12.10-r1 (#429)

CHANGELOG.md

@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [unreleased]
 
+- 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

app/requirements-test.txt

@@ -4,5 +4,5 @@
     pytest-cov==6.1.1
     python-dotenv==1.1.0
     mock==5.2.0
-    coverage==7.8.0
+    coverage==7.8.2
     jinja2-cli==0.8.2

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:

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:

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

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
 

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

app/src/server.py

@@ -127,7 +127,8 @@ class Server():
     def build_config(self):
         # read config file
         Config.init(ConfigReadToml(self.src_dir + "cnf/default_config.toml"),
-                    log_path=self.log_path)
+                    log_path=self.log_path,
+                    cnf_path=self.config_path)
         ConfigReadEnv()
         ConfigReadJson(self.config_path + "config.json")
         ConfigReadToml(self.config_path + "config.toml")

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>

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%}

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
 

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)

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
@@ -168,65 +206,162 @@ async def test_mqtt_no_config(config_no_conn):
         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_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 +402,31 @@ 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()

app/tests/test_solarman.py

@@ -462,6 +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'
@@ -676,6 +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'
@@ -812,6 +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 = {
@@ -854,7 +920,17 @@ 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()
 
 @pytest.mark.asyncio
 async def test_read_message(device_ind_msg):
@@ -1405,6 +1481,7 @@ async def test_build_modell_600(my_loop, 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
@@ -1424,6 +1501,7 @@ async def test_build_modell_1600(my_loop, config_tsun_allow_all, inverter_ind_ms
     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()
 
@@ -1437,6 +1515,7 @@ async def test_build_modell_1800(my_loop, config_tsun_allow_all, inverter_ind_ms
     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()
 
@@ -1450,6 +1529,7 @@ async def test_build_modell_2000(my_loop, config_tsun_allow_all, inverter_ind_ms
     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()
 
@@ -1463,6 +1543,21 @@ async def test_build_modell_800(my_loop, config_tsun_allow_all, inverter_ind_msg
     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()
 
@@ -2159,6 +2254,61 @@ async def test_modbus_scaning(config_tsun_scan, heartbeat_ind_msg, heartbeat_rsp
     assert next(m.mb_timer.exp_count) == 3
     m.close()
 
+@pytest.mark.asyncio
+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
@@ -2402,3 +2552,124 @@ async def test_proxy_at_blocked(my_loop, config_tsun_inv1, patch_open_connection
 
         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 == ""
+

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 $@

ha_addons/ha_addon/Dockerfile

@@ -18,7 +18,7 @@ ARG BUILD_FROM="ghcr.io/hassio-addons/base:17.2.5"
 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
 

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,