Values are frequently 'unavailable'

[IngmarVerheij]

The integration works pretty well with the supplied instructions but the values are frequently set to 'unavailable' instead of the most recent read values. It seems its trying to read the modbus data to frequent and therefore fails, but this is a wild guess.

In the debug log I see the following ERROR frequently

023-04-19 09:42:41.445 ERROR (MainThread) [custom_components.saj_modbus.hub] Unexpected error fetching SAJ data: unpack requires a buffer of 4 bytes Traceback (most recent call last): File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 250, in _async_refresh self.data = await self._async_update_data() File "/config/custom_components/saj_modbus/hub.py", line 79, in _async_update_data realtime_data = await self.hass.async_add_executor_job( File "/usr/local/lib/python3.10/concurrent/futures/thread.py", line 58, in run result = self.fn(*self.args, **self.kwargs) File "/config/custom_components/saj_modbus/hub.py", line 150, in read_modbus_realtime_data faultMsg0 = decoder.decode_32bit_uint() File "/usr/local/lib/python3.10/site-packages/pymodbus/payload.py", line 411, in decode_32bit_uint handle = self._unpack_words(fstring, handle) File "/usr/local/lib/python3.10/site-packages/pymodbus/payload.py", line 361, in _unpack_words handle = unpack(up, handle) struct.error: unpack requires a buffer of 4 bytes 2023-04-19 09:43:41.684 INFO (MainThread) [custom_components.saj_modbus.hub] Fetching SAJ data recovered

Is it possible to get a more detailed log file?

PS: Running on a SAJ inverted (Zonneplan provided) using an EW11A

[wimb0]

I think I'm not able to help with this issue soon, as I moved and do not have Zonneplan solar panels and the SAJ inverter anymore. However, I did not see these errors in my logfiles when I still had them. Did you set a different scan interval, than the default 60?

[IngmarVerheij]

Ah too bad. I’ll need to debug it myself then. Where can I configure the scan interval?

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Van: wimb0 @.> Verzonden: Monday, April 24, 2023 3:42:45 PM Aan: wimb0/home-assistant-saj-modbus @.> CC: Ingmar Verheij @.>; Author @.> Onderwerp: Re: [wimb0/home-assistant-saj-modbus] Values are frequently 'unavailable' (Issue #67)

I think I'm not able to help with this issue soon, as I moved and do not have Zonneplan solar panels and the SAJ inverter anymore. However, I did not see these errors in my logfiles when I still had them. Did you set a different scan interval, than the default 60?

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[wimb0]

When you add the integration to Home Assistant, you can change the update frequency (last option):

[newfilip]

where can i change the IP later?

[wimb0]

You can't, HA does not support this. I think you can edit homeassisant\config.storage\core.config_entries and change the IP there. Restart HA later. Maybe you can also remove the integration and re-add it with the same Prefix.