caswell1000

Is the wiring is ohk, make sure you connect the Rj45 cable to rs485/can or BMS/485 port depending on your inverter port set up, this worked for me on two parallel inverters with two different port setups. You might need a splitter to share the port with the battery cable, make sure the splitter has all the 8 cables connecter on the input and output side. You are almost there.

I am indeed pulling two datasets from two inverters, master and slave, master address is 0x01 slave 0x02, I have made two esp32 modules each connected to one inverter, my ether ports are slightly different on the two, for master I had to connect on the rs485/Can port, it shares the port with the battery cable via a splitter. For slave I used bms 485 port, it does not share the port. Thanks to @Magetsi I managed to ignore the initial errors and connected to the shared port on the master and got readings, my TX rx are 1and 3 and 16 is the control pin. I had errors before finding the right port in both instances. Aport from the pins and the soldering, finding the right port is important, I used @slipx yaml, it allows for reading and writing data,no more having to manually change the grid charging settings 1 by one, I do that on homeassistant with scenes as per the YT video from solar integrations. Good Luck

I am struggling with these same error logs as well, I even changed the esp32 thinking it was a hardware error, the error logs persist.