Could not read register value, has another device interrupted the connection?

[henfri]

Hello,

I am using the SDongle connection.
I have checked it with BOPV.info and also with my wallbox. That works.
However in Home-Assistant I get:

2023-05-06 08:56:54.567 ERROR (MainThread) [huawei_solar.huawei_solar] Could not read register value, has another device interrupted the connection?
2023-05-06 08:56:54.569 ERROR (MainThread) [huawei_solar.huawei_solar] Aborting client creation due to error.
Traceback (most recent call last):
  File "/usr/local/lib/python3.10/site-packages/huawei_solar/huawei_solar.py", line 356, in _do_read
    response = await self._client.protocol.read_holding_registers(
  File "/usr/local/lib/python3.10/site-packages/pymodbus/client/asynchronous/async_io/__init__.py", line 35, in execute
    resp = await asyncio.wait_for(req, timeout=self._timeout)
  File "/usr/local/lib/python3.10/asyncio/tasks.py", line 445, in wait_for
    return fut.result()
pymodbus.exceptions.ConnectionException: Modbus Error: [Connection] Connection lost during request

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/usr/local/lib/python3.10/site-packages/huawei_solar/huawei_solar.py", line 157, in create
    await huawei_solar._initialize()
  File "/usr/local/lib/python3.10/site-packages/huawei_solar/huawei_solar.py", line 120, in _initialize
    self.time_zone = (await self.get(rn.TIME_ZONE)).value
  File "/usr/local/lib/python3.10/site-packages/huawei_solar/huawei_solar.py", line 254, in get
    return (await self.get_multiple([name], slave))[0]
  File "/usr/local/lib/python3.10/site-packages/huawei_solar/huawei_solar.py", line 296, in get_multiple
    response = await self._read_registers(
  File "/usr/local/lib/python3.10/site-packages/huawei_solar/huawei_solar.py", line 389, in _read_registers
    result = await _do_read()
  File "/usr/local/lib/python3.10/site-packages/backoff/_async.py", line 151, in retry
    ret = await target(*args, **kwargs)
  File "/usr/local/lib/python3.10/site-packages/huawei_solar/huawei_solar.py", line 385, in _do_read
    raise ReadException(message) from err
huawei_solar.exceptions.ReadException: Could not read register value, has another device interrupted the connection?
2023-05-06 08:56:54.572 ERROR (MainThread) [custom_components.huawei_solar.config_flow] Could not read register value, has another device interrupted the connection?
Traceback (most recent call last):
  File "/usr/local/lib/python3.10/site-packages/huawei_solar/huawei_solar.py", line 356, in _do_read
    response = await self._client.protocol.read_holding_registers(
  File "/usr/local/lib/python3.10/site-packages/pymodbus/client/asynchronous/async_io/__init__.py", line 35, in execute
    resp = await asyncio.wait_for(req, timeout=self._timeout)
  File "/usr/local/lib/python3.10/asyncio/tasks.py", line 445, in wait_for
    return fut.result()
pymodbus.exceptions.ConnectionException: Modbus Error: [Connection] Connection lost during request

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/config/custom_components/huawei_solar/config_flow.py", line 384, in async_step_setup_network
    info = await validate_network_setup(user_input)
  File "/config/custom_components/huawei_solar/config_flow.py", line 114, in validate_network_setup
    bridge = await HuaweiSolarBridge.create(
  File "/usr/local/lib/python3.10/site-packages/huawei_solar/bridge.py", line 77, in create
    client = await AsyncHuaweiSolar.create(host, port, slave_id, loop=loop)
  File "/usr/local/lib/python3.10/site-packages/huawei_solar/huawei_solar.py", line 167, in create
    raise err
  File "/usr/local/lib/python3.10/site-packages/huawei_solar/huawei_solar.py", line 157, in create
    await huawei_solar._initialize()
  File "/usr/local/lib/python3.10/site-packages/huawei_solar/huawei_solar.py", line 120, in _initialize
    self.time_zone = (await self.get(rn.TIME_ZONE)).value
  File "/usr/local/lib/python3.10/site-packages/huawei_solar/huawei_solar.py", line 254, in get
    return (await self.get_multiple([name], slave))[0]
  File "/usr/local/lib/python3.10/site-packages/huawei_solar/huawei_solar.py", line 296, in get_multiple
    response = await self._read_registers(
  File "/usr/local/lib/python3.10/site-packages/huawei_solar/huawei_solar.py", line 389, in _read_registers
    result = await _do_read()
  File "/usr/local/lib/python3.10/site-packages/backoff/_async.py", line 151, in retry
    ret = await target(*args, **kwargs)
  File "/usr/local/lib/python3.10/site-packages/huawei_solar/huawei_solar.py", line 385, in _do_read
    raise ReadException(message) from err
huawei_solar.exceptions.ReadException: Could not read register value, has another device interrupted the connection?
2023-05-06 08:56:54.674 WARNING (MainThread) [pymodbus.client.asynchronous.async_io] Failed to connect: Multiple exceptions: [Errno 111] Connect call failed ('::1', 502, 0, 0), [Errno 111] Connect call failed ('127.0.0.1', 502)
2023-05-06 08:56:54.877 WARNING (MainThread) [pymodbus.client.asynchronous.async_io] Failed to connect: Multiple exceptions: [Errno 111] Connect call failed ('::1', 502, 0, 0), [Errno 111] Connect call failed ('127.0.0.1', 502)
2023-05-06 08:56:55.281 WARNING (MainThread) [pymodbus.client.asynchronous.async_io] Failed to connect: Multiple exceptions: [Errno 111] Connect call failed ('::1', 502, 0, 0), [Errno 111] Connect call failed ('127.0.0.1', 502)
2023-05-06 08:56:56.085 WARNING (MainThread) [pymodbus.client.asynchronous.async_io] Failed to connect: Multiple exceptions: [Errno 111] Connect call failed ('::1', 502, 0, 0), [Errno 111] Connect call failed ('127.0.0.1', 502)
2023-05-06 08:56:57.706 WARNING (MainThread) [pymodbus.client.asynchronous.async_io] Failed to connect: Multiple exceptions: [Errno 111] Connect call failed ('::1', 502, 0, 0), [Errno 111] Connect call failed ('127.0.0.1', 502)
2023-05-06 08:57:00.916 WARNING (MainThread) [pymodbus.client.asynchronous.async_io] Failed to connect: Multiple exceptions: [Errno 111] Connect call failed ('::1', 502, 0, 0), [Errno 111] Connect call failed ('127.0.0.1', 502)
2023-05-06 08:57:07.322 WARNING (MainThread) [pymodbus.client.asynchronous.async_io] Failed to connect: Multiple exceptions: [Errno 111] Connect call failed ('::1', 502, 0, 0), [Errno 111] Connect call failed ('127.0.0.1', 502)
2023-05-06 08:57:09.653 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter.
NoneType: None
2023-05-06 08:57:09.653 ERROR (MainThread) [huawei_solar.huawei_solar] Aborting client creation due to error.
Traceback (most recent call last):
  File "/usr/local/lib/python3.10/site-packages/huawei_solar/huawei_solar.py", line 157, in create
    await huawei_solar._initialize()
  File "/usr/local/lib/python3.10/site-packages/huawei_solar/huawei_solar.py", line 120, in _initialize
    self.time_zone = (await self.get(rn.TIME_ZONE)).value
  File "/usr/local/lib/python3.10/site-packages/huawei_solar/huawei_solar.py", line 254, in get
    return (await self.get_multiple([name], slave))[0]
  File "/usr/local/lib/python3.10/site-packages/huawei_solar/huawei_solar.py", line 296, in get_multiple
    response = await self._read_registers(
  File "/usr/local/lib/python3.10/site-packages/huawei_solar/huawei_solar.py", line 389, in _read_registers
    result = await _do_read()
  File "/usr/local/lib/python3.10/site-packages/backoff/_async.py", line 151, in retry
    ret = await target(*args, **kwargs)
  File "/usr/local/lib/python3.10/site-packages/huawei_solar/huawei_solar.py", line 354, in _do_read
    raise ConnectionException(message)
huawei_solar.exceptions.ConnectionException: Modbus client is not connected to the inverter.
2023-05-06 08:57:09.718 WARNING (MainThread) [pymodbus.client.asynchronous.async_io] Failed to connect: Multiple exceptions: [Errno 111] Connect call failed ('::1', 502, 0, 0), [Errno 111] Connect call failed ('127.0.0.1', 502)
2023-05-06 08:57:09.925 WARNING (MainThread) [pymodbus.client.asynchronous.async_io] Failed to connect: Multiple exceptions: [Errno 111] Connect call failed ('::1', 502, 0, 0), [Errno 111] Connect call failed ('127.0.0.1', 502)
2023-05-06 08:57:10.335 WARNING (MainThread) [pymodbus.client.asynchronous.async_io] Failed to connect: Multiple exceptions: [Errno 111] Connect call failed ('::1', 502, 0, 0), [Errno 111] Connect call failed ('127.0.0.1', 502)
2023-05-06 08:57:11.144 WARNING (MainThread) [pymodbus.client.asynchronous.async_io] Failed to connect: Multiple exceptions: [Errno 111] Connect call failed ('::1', 502, 0, 0), [Errno 111] Connect call failed ('127.0.0.1', 502)
2023-05-06 08:57:12.756 WARNING (MainThread) [pymodbus.client.asynchronous.async_io] Failed to connect: Multiple exceptions: [Errno 111] Connect call failed ('::1', 502, 0, 0), [Errno 111] Connect call failed ('127.0.0.1', 502)

Is it normal, that it tries to connect to localhost? I have entered 192.168.177.178 which is the correct IP.

I tried to increase the log-level (configuration.yaml):

logger:
  logs:
    pymodbus: debug # only include this if you're having connectivity issues
    huawei_solar: debug
    homeassistant.components.huawei_solar: debug

But then, my log is flodded also with other messages (everything seems to be logged). Any Idea why?

I have also checked the port with nmap (502).

I am NOT on the latest version of the integration. I installed it a month ago and I do not know how to update it :-(

What else, can I do?

Best regards,
Hendrik

[henfri]

Hello,

I now have a connection. I had to switch off my Wallbox, which is connected via Modbus RTU.
Seemingly, Dongel and Modbus RTU do not work at the same time...

Greetings,
Hendrik