DC Load calculations

Modifications
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1

I have a simple system setup to test a LFP battery, REC-BMS, Cerbo and a Xantrex inverter/charger. I’ve modified a RV-C version of the Xantrex driver to support NMEA 2000. Everything seems to work fine except for the DC Load calculation when the battery is being charged from the AC charger.

The battery shows -1300W going into it. The DC Load tile also shows -1300W. IMO the DC Load tile should not change.

When inverting, the AC Load power is correctly be subtracted from the DC Load tile.

The Xantrex driver creates two services: type=inverter and type=charger. It looks to me like the charger service is being ignored in the DC Load tile calculations.

Does anyone have any ideas why this might be….

2

This has been solved. The problem was in the second service created to support AC charging. This was not needed and was doubling the “measured’ power consumed. This showed as negative power coming from the DC Loads.