I haven’t used the app myself, but I know other users who have. You should use Read Holding Register, I assume.
This is the latest version of the Modbus spec I have.
You can start by trying some of the registries the app uses. You can find them by device type in the registry folder. This is the battery. Reading the state of charge would, for instance, use register 30601 with size 1.
Otherwise, it is about trying to decipher the Modbus sec and figure out what works by trial and error. There were, for instance, several new registers added in version 2.8 - but half of them don’t work.
Where did you find the update? I don’t see any update available on my side, and the Plant is still not working for me. Could you point me to where exactly you got it or which version you’re on?
Thanks for your reply. I was keen to help, as I need third party inverter integration and the ability to change operating modes to fully automate my battery. Unfortunately, this is a bit beyond me. Hopefully someone with more experience can work it out and give you a hand.
