franlopez

Hello, I have a 8kw I non-twin inverter (with detachable display). Connected to Pylontech BMS via RS485 I am trying to integrate with Raspberry Pi and Home Assistant but whenever I connect any serial on the serial port or an USB to retrieve the data, an error 04 (low batt) or 61 (batt communication failure) appears randomly. Sometimes the error appears right after connecting, sometimes it takes a bit. Sometimes it stays put, sometimes comes and goes. I've tried everything and this is only happening when I connect a new communication to the inverter. I've seen in other forums/YouTube that this is a common issue that could be fixed updating (this CPU is not able to cope with two communications at the same time, RPi and Pylontech), but I'm not sure. Anyone here that has had this issue fixed? I would also appreciate if you could help me identify my processor on the inverter. Current firmware: Main CPU Vers. U1 46.05 Secondary CPU Vers. U2 12.06 Secondary WIFI Vers. U3 88.88