I have read that most of the solar inverters implement a “sun-spec” for management over modbus.
Does anyone know how standardized this standard is and how closely Fronius follows this standard?
There seem to be multiple implementations (one with float values and one with “int + SF”. Also in my case I can choose to use rtu or tcp flavour for representation in the ip packets.
Do you know whether Fronius shares any documentation on their sun-spec-mod-bus-over-tcp implementation?
I saw People here reporting successfully using the modbus binding with solaredge inverters, but it looked like a “one configuration for one box” instead of “on configuration for all sun-spec”