My setup actually looks very simple and is just for updates and tests:
- AC-IN1 = grid
- no AC-OUT1/2 connected
- switch: charger only
PV charger = no PV array connected
no battery connected, PV charger is powered by Multiplus2
to measure grid loads a smartmeter is connected via modbus-tcp.
the problem is, there's a difference between grid L1 and ac-loads L1, but ther shouldn't
L1 ac-loads shows always min. >10W more consumption than the power meter/grid. L2 and L3 show's correct values.
Does someone know the cause of that? the value looks to me calculated, but why and where?