Modbus Error: [Invalid Message] No response received, expected at least 8 bytes (0 received)

[benbeton]

I get this error a lot in the home assistant log:

basically the integration works with my H3, however I get from time to time an "unavailable" as status and my graph looks like this with e.g. PV generation, not sure if this is related to that

I'm using the usr-610.

[rsaemann]

For me this looks like a double configuration of your sensors. First call requests the correct value and the second call runs to nowhere and receives an "unavailble" value.
Maybe you linked the two sensor configuration files? If you have a H3 inverter it is only neccessary to link the modbusH3USB.yaml OR modbusLAN-H3.yaml file. The other "modbusLAN.yaml" were only listed in this repository for compatibility with the original branch.