DMC-1400 Series Command Reference OP 153
EXAMPLES:
OP 0 Clear Output Port – all bits
OP 7 Set outputs 1,2 and 3
MG _OP0 Returns the first parameter "m" (DMC-1415/1416/1425 only)
MG _OP1 Returns the second parameter "a" (DMC-1415/1416/1425 only)