I'm trying to sniff on the communication between the my heat pumps master board (shown in photo) and its outdoor unit.
I've added shielded 18/2 and followed a route in the box to avoid the line voltage wires as much as possible (also following manufacturers route).
By trial and error i worked out these settings which avoid regular FRAMING, PARITY and BREAK errors.
I'd like some advice on why I may be seeing continued error and how to use this advanced analyzer to work out the correct settings.
Assuming i can parse this modbus correctly i'd then like to have a persistent process for dumping the registers of this device to home assistant.