To be able to determine the inverter type automatically, the exact content of ModBus register 35000 is important. There seem to be different interpretations of the documentation, so it would be interesting to collect as many register values as possible here to create a robust detection logic.

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Inverter type as printed on the unit:
Type definition (reg 35000):
Model type (reg 3000 for INV, reg 33000 for ESINV):

Please pay attention to whether the value is hexadecimal or decimal, this seems to be an inconsistency.