AH500 Motion Control Module Manual API 01 S : Pointer which points to a subroutine A pointer is in the range of P0~P255. The subroutine to which a pointer points should be written after M102, M2 and the instruction SRET. The pointer used by the instruction CALL can not be the same as the pointers used by the instructions CJ, CJN, and JMP. If only the instruction CALL is used, the same subroutine can be called repeatedly. Explanation 5-22 Instruction code Operand Function CALL P S Calling a subroutine Device Xn.n Yn.n M S K 16# F KnM KnS D W T C V Z S Pulse instruction 16-bit instruction (3 steps) 32-bit instruction –