Hi,
I would also like to use this integration. I have an inverter with the above designation:

As has been discussed #785 and #807, my inverter is probably the same as the ones from Enpal and 1komma5. I have already integrated various registers manually from the entity_descriptions.py for H3_smart or and _pro via the modbus integration. The data I get back is also correct.

But apparently my h3-smart is not recognised as such:

Geändert zu Error reading registers. Type: RegisterType.HOLDING; start: 31000; count: 52; slave: 247 from tcp://192.168.1.xyz:502: Modbus Error: [Input/Output] Modbus Error: [Invalid Message] No response received, expected at least 8 bytes (0 received)

as the register 31000 seems not to exist for the H3_smart

Can you please help me to get the integration to work?