AH500 Motion Control Module Manual 1.5 Using O100, Ox Motion Subroutines, and P Subroutines O100, Ox motion subroutines, and P subroutines are introduced in section 1.1~section 1.3. In this section, a program composed of O100, Ox motion subroutines, and P subroutines is described. 1.5.1 Structure of a Program Suppose a program is composed of O100, Ox0, Ox3, P1, and P2. The five program blocks are shown below. Main program O100 ． ． ． Calling Ox0 Motion subroutine Ox0 ． ． ． ． ． Calling P1 Subroutine 1-10 ． ． ． Call．ing P2 ． ． ． M102 ． ． ． M2 ． SRET Subroutine P2 ． ． Motion subroutine Calling Ox3 ． Ox3 ． ． ． SRET． M2