Modbus client is not connected to the inverter

[lakatusch]

Hi there,

posted already here, but this post is closed: #550

since yesterday 1pm i got the same issue as mentioned in the bug:

024-02-19 13:37:33.064 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter.
NoneType: None
2024-02-19 13:37:33.065 INFO (MainThread) [backoff] Backing off _do_read(...) for 1.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter.)
2024-02-19 13:37:33.928 ERROR (MainThread) [tibber.home] Could not find consumption data.
2024-02-19 13:37:34.075 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter.
NoneType: None
2024-02-19 13:37:34.076 INFO (MainThread) [backoff] Backing off _do_read(...) for 2.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter.)
2024-02-19 13:37:36.077 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter.
NoneType: None
2024-02-19 13:37:36.077 INFO (MainThread) [backoff] Backing off _do_read(...) for 4.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter.)
2024-02-19 13:37:40.079 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter.
NoneType: None
2024-02-19 13:37:40.079 INFO (MainThread) [backoff] Backing off _do_read(...) for 8.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter.)
2024-02-19 13:37:48.081 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter.
NoneType: None
2024-02-19 13:37:48.082 INFO (MainThread) [backoff] Backing off _do_read(...) for 16.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter.)
2024-02-19 13:38:02.170 WARNING (MainThread) [homeassistant.components.device_tracker] Setup of device_tracker platform cupra_we_connect is taking over 10 seconds.
2024-02-19 13:38:04.085 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter.
NoneType: None
2024-02-19 13:38:04.086 ERROR (MainThread) [backoff] Giving up _do_read(...) after 6 tries (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter.)
2024-02-19 13:38:04.086 ERROR (MainThread) [huawei_solar.huawei_solar] Aborting client creation due to error.
Traceback (most recent call last):
  File "/usr/local/lib/python3.12/site-packages/backoff/_async.py", line 151, in retry
    ret = await target(*args, **kwargs)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.12/site-packages/backoff/_async.py", line 151, in retry
    ret = await target(*args, **kwargs)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.12/site-packages/huawei_solar/huawei_solar.py", line 349, in _do_read
    raise ConnectionInterruptedException(message)
huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter.

Here you can see that all works till 13:25 :

The versions are newer, than in the original post:

Does anybody know, how to fix this?

regards
Daniel

[lakatusch]

holy ....

found the origin:

i will downgrade to an older version...

on the other hand, is there a bug regarding the PC127 version?

[lakatusch]

downgrade doesnt fix the issue...

here the log:

2024-02-20 08:07:07.289 INFO (MainThread) [backoff] Backing off _do_read(...) for 16.0s (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter.)
2024-02-20 08:07:23.290 ERROR (MainThread) [huawei_solar.huawei_solar] Modbus client is not connected to the inverter.
NoneType: None
2024-02-20 08:07:23.292 ERROR (MainThread) [backoff] Giving up _do_read(...) after 6 tries (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter.)
2024-02-20 08:07:23.292 ERROR (MainThread) [huawei_solar.huawei_solar] Aborting client creation due to error.
Traceback (most recent call last):
  File "/usr/local/lib/python3.12/site-packages/backoff/_async.py", line 151, in retry
    ret = await target(*args, **kwargs)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.12/site-packages/backoff/_async.py", line 151, in retry
    ret = await target(*args, **kwargs)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.12/site-packages/huawei_solar/huawei_solar.py", line 349, in _do_read
    raise ConnectionInterruptedException(message)
huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.12/site-packages/huawei_solar/huawei_solar.py", line 178, in create
    await huawei_solar._initialize()
  File "/usr/local/lib/python3.12/site-packages/huawei_solar/huawei_solar.py", line 107, in _initialize
    self.time_zone = (await self.get(rn.TIME_ZONE)).value
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.12/site-packages/huawei_solar/huawei_solar.py", line 241, in get
    return (await self.get_multiple([name], slave))[0]
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.12/site-packages/huawei_solar/huawei_solar.py", line 276, in get_multiple
    response = await self._read_registers(registers[0].register, total_length, slave)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.12/site-packages/huawei_solar/huawei_solar.py", line 398, in _read_registers
    return await _do_read()
           ^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.12/site-packages/backoff/_async.py", line 159, in retry
    await _call_handlers(on_giveup, **details, exception=e)
  File "/usr/local/lib/python3.12/site-packages/backoff/_async.py", line 37, in _call_handlers
    await handler(details)
  File "/usr/local/lib/python3.12/site-packages/backoff/_async.py", line 16, in f
    return coro_or_func(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.12/site-packages/huawei_solar/huawei_solar.py", line 327, in backoff_giveup
    raise ReadException(f"Failed to read register {register} after {details['tries']} tries")
huawei_solar.exceptions.ReadException: Failed to read register 43006 after 6 tries

here the update sequence:

any idea?

[lakatusch]

maybe this:

Issue: Failed to read register 43006 after 6 tries

but the "current" definition:

browser-search:

and time zone now:

[lakatusch]

absolutely crazy...

i have configured a modbus connection by myself to test the connection to the inverter directly:

- name: modbus_sun2000
  type: tcp
  host: 192.168.0.33
  port: 502
  delay: 0
  message_wait_milliseconds: 30
  timeout: 5
  sensors:
    - name: "modbus_sun2000_pv1_voltage"
      data_type: uint16
      slave: 1
      address: 32016
      scan_interval: 60

after this, one reboot and the value of pv1 voltage was displayed correctly..

and now: the fusion solar integrations runs without any error in the log...

ok... the data from today is missing... but the charge/discharge power is shown correctly...

unbelievable... i dont do anything, only the modbus config per hand...

how crazy

[lakatusch]

... get this issue again, again and again...

it looks like, that a maximum of two reboots of HA is allowed and after the third reboot, the inverter rejects the new modbus connection...

than it takes 5 minutes and it runs again...

grml