I forgot to mention the MC4;
Some controllers make it easy for you by having MC4 connectors. I don’t use these, as they derate the unit (MC4 typically require your design to limit the current through any particular MC4 to 30A, so in this case if there are 2 pairs, then 60A is your input current limit.
But as you saw from the previous reply, even at 4 strings in parallel, we only have 30A total.
So to know how to wire this, we need to look at the MPPT wiring diagram - these MC4 could be in series or in parallel.
In the manual this line is important:
“For MC4 models: several of the solar charger’s MC4 pairs may be needed to parallel solar panel strings. Be
aware that the maximum current through a MC4 connection cannot exceed 30A”
So … its clear (to me) that if you put the whole array on one pair of those MC4, you would be asking for trouble (with a theoretical 30A current, you could get higher currents - look up “edge effect” and “high temperature solar panel current”), so we have to split our array.
You could run 3s2p into each MC4 pair, or if you ended up with 3s3p, just put a 3s1p into one, and a 3s2p into the other. Because the voltage of the array is always the same (3s = 113.4v), it doesn’t matter that one pair of MC4 will handle 2 strings while the other MC4 handles 1 string.
Also, internally those MC4 are wired together (in parallel), so we are only doing this to manage the 30A limit on the MC4.
Correction: I just noticed your panels are 265w, not 240w, but really, a panel that old is probably only pushing 240w by now, so the difference in the math is not very consequential