High SOC and Wattage number

[enduring78]

The problem

Hello, since a few weeks, the Victron integration on my Home Assistant had been reporting percentages above 100% for the batteries, and unreal numbers for the power Watts. This issue started with the update to Home Assistant 2.0. I have reverted a earlier backup of my Home Assistant (which now has version 1.4) be be able to keep using the integration in the meantime.

Environment

I am having this issue with Home Assistant 2.0 and up. I converted back from Remcom's repo to this one since this one seems to be active again, and I'm using the latest release 0.4.2.

• Home Assistant Core release with the issue: 2025.2.0 and up
• Last working Home Assistant Core release (if known): 2025.1.4
• Integration version causing this issue: Not sure. After seeing the message in the 0.4.2 release that said I need to install it before installing HA Core 2025.2.0, I migrated first before upgrading. Version 0.3.5 from Remcom worked fine on 2025.1.4 and still continues to do so IF I don't update HA Core.

Problem-relevant configuration dialog

Not sure where to get this info, but this is in the configuration box if I click configure next to the device:

Traceback/Error logs

These are logs form the exact time a extremely high value appeared on Home Assistant. Nothing changed physically, and HA Core 1.4 with integration version 0.3.5 from Remcom is not reporting any anomalies during that period.

2025-03-01 15:27:46.944 WARNING (MainThread) [pymodbus.logging] BinaryPayloadDecoder is deprecated and will be removed in v3.9.0 !
Please use "client.convert_from_registers()" or "client.convert_to_registers"
See documentation: "https://pymodbus.readthedocs.io/en/latest/source/client.html#pymodbus.client.mixin.ModbusClientMixin.convert_from_registers"
2025-03-01 15:27:46.946 WARNING (MainThread) [pymodbus.logging] BinaryPayloadDecoder is deprecated and will be removed in v3.9.0 !
Please use "client.convert_from_registers()" or "client.convert_to_registers"
See documentation: "https://pymodbus.readthedocs.io/en/latest/source/client.html#pymodbus.client.mixin.ModbusClientMixin.convert_from_registers"
2025-03-01 15:27:46.948 WARNING (MainThread) [pymodbus.logging] BinaryPayloadDecoder is deprecated and will be removed in v3.9.0 !
Please use "client.convert_from_registers()" or "client.convert_to_registers"
See documentation: "https://pymodbus.readthedocs.io/en/latest/source/client.html#pymodbus.client.mixin.ModbusClientMixin.convert_from_registers"
2025-03-01 15:27:46.950 WARNING (MainThread) [pymodbus.logging] BinaryPayloadDecoder is deprecated and will be removed in v3.9.0 !
Please use "client.convert_from_registers()" or "client.convert_to_registers"
See documentation: "https://pymodbus.readthedocs.io/en/latest/source/client.html#pymodbus.client.mixin.ModbusClientMixin.convert_from_registers"
2025-03-01 15:27:46.951 WARNING (MainThread) [pymodbus.logging] BinaryPayloadDecoder is deprecated and will be removed in v3.9.0 !
Please use "client.convert_from_registers()" or "client.convert_to_registers"
See documentation: "https://pymodbus.readthedocs.io/en/latest/source/client.html#pymodbus.client.mixin.ModbusClientMixin.convert_from_registers"
2025-03-01 15:27:46.952 WARNING (MainThread) [pymodbus.logging] BinaryPayloadDecoder is deprecated and will be removed in v3.9.0 !
Please use "client.convert_from_registers()" or "client.convert_to_registers"
See documentation: "https://pymodbus.readthedocs.io/en/latest/source/client.html#pymodbus.client.mixin.ModbusClientMixin.convert_from_registers"
2025-03-01 15:27:46.954 ERROR (SyncWorker_26) [pymodbus.logging] Exception response 131 / 0
2025-03-01 15:27:46.954 WARNING (MainThread) [custom_components.victron.coordinator] no valid data returned for entities of slave: 230 (if the device continues to no longer update) check if the device was physically removed. Before opening an issue please force a rescan to attempt to resolve this issue
2025-03-01 15:27:46.956 ERROR (SyncWorker_30) [pymodbus.logging] Exception response 131 / 0
2025-03-01 15:27:46.956 WARNING (MainThread) [custom_components.victron.coordinator] no valid data returned for entities of slave: 230 (if the device continues to no longer update) check if the device was physically removed. Before opening an issue please force a rescan to attempt to resolve this issue

In case of unit ID issue, missing devices or non-updating devices

Additional information

Here's a screenshot of the issue:

[sfstar]

Hello and thank you for opening this issue.
Can you see/confirm if the
2025-03-01 15:27:46.956 ERROR (SyncWorker_30) [pymodbus.logging] Exception response 131 / 0
is reported at the same time there is an percentage spike?

[enduring78]

Hi,

The 2025-03-01 15:27:46.956 ERROR (SyncWorker_30) [pymodbus.logging] Exception response 131 / 0 line does not appear to be related, since that one shows up on my working instance (running 2025.1.4) as well.

On my test instance, which is a clone of my working instance since I didn't want to mess up my data, there is a spike today 17:24:58.

At 17:24:57, I see this error in the log:
2025-03-05 17:24:57.453 ERROR (MainThread) [custom_components.victron.coordinator] Unexpected error fetching victron data Traceback (most recent call last): File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 380, in _async_refresh self.data = await self._async_update_data() ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/config/custom_components/victron/coordinator.py", line 96, in _async_update_data self.parse_register_data( ~~~~~~~~~~~~~~~~~~~~~~~~^ data, register_info_dict[name], unit ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ).items() ^ File "/config/custom_components/victron/coordinator.py", line 129, in parse_register_data decoder.decode_16bit_int(), value.scale, value.unit ~~~~~~~~~~~~~~~~~~~~~~~~^^ File "/usr/local/lib/python3.13/site-packages/pymodbus/payload.py", line 447, in decode_16bit_int return unpack(fstring, handle)[0] ~~~~~~^^^^^^^^^^^^^^^^^ struct.error: unpack requires a buffer of 2 bytes

Then, at 17:24:58, I see this:

2025-03-05 17:24:58.449 WARNING (MainThread) [pymodbus.logging] BinaryPayloadDecoder is deprecated and will be removed in v3.9.0 ! Please use "client.convert_from_registers()" or "client.convert_to_registers" See documentation: "https://pymodbus.readthedocs.io/en/latest/source/client.html#pymodbus.client.mixin.ModbusClientMixin.convert_from_registers" 2025-03-05 17:24:58.449 ERROR (MainThread) [custom_components.victron.coordinator] Unexpected error fetching victron data Traceback (most recent call last): File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 380, in _async_refresh self.data = await self._async_update_data() ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/config/custom_components/victron/coordinator.py", line 96, in _async_update_data self.parse_register_data( ~~~~~~~~~~~~~~~~~~~~~~~~^ data, register_info_dict[name], unit ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ).items() ^ File "/config/custom_components/victron/coordinator.py", line 143, in parse_register_data .decode() ~~~~~~^^ UnicodeDecodeError: 'utf-8' codec can't decode byte 0xff in position 0: invalid start byte

I'm also seeing some logs from other integrations about the network going down briefly, but I believe this is due to a saturated Ethernet connection while my backup is running. My test HA instance and the working instance are on the same Proxmox host and I am getting the same errors on the working instance, but on that one the readings stay normal.