i have a Fanuc 10m system here with this "a20b-0008-0280-04b" board and a dangling db25 serial cable. the motherboard has the"a16b-1210-0350" option board that i believe the dangling serial leads to...
the control has "PLAY BACK" in the function selection "playback edit memory mdi...."
what do i check to see if we have this enabled?