I have 24x 400w solar panels configured like so:
2 sets of 8 panels in series. 16 panels total. Combined into 1 string
1 string of 8 panels in series. 8 panels total. 1 string
4 Total Wires coming from roof:
PV1+, PV1- (string "MP1: 1x8", 10awg)
PV2+, PV2- (combined string "MP1: 2x8", 10awg)...