The MCALL instruction turns a subroutine into a canned cycle with all the characteristics of a canned cycle and, therefore, must be canceled with MDOFF. The following example takes a program already created and turns it into a subroutine applying the header and the end of subroutine to it. The header includes a coordinate preset with function G92 and the end of the subroutine includes a part zero such as G54 or any other. This part zero is the same as the one entered in the main program that calls upon the subroutine. O O O O O O 150 100 100