On a system with two shunts, one on PV in, one on Inverter, Does the FNDC count amps in and amps out or do they cancel each other eg the panels are producing 10 amps, the inverter is using 5, Would that be shown as 10a in 5 out or just 5 in ? (reason being, looking at someones monitoring and seeing amps in compared to amps out rise, Trying to figure if it is battery efficiency falling off or just more load being used)
Tim