System information

SECTION ONE – PROGRAM CONFIGURATION

Program

Normally a program number is specified at the beginning of a program, and a program end code

(M99, M02, M30) is specified at the end of the program. Neither is required; however, it may be

advantageous to omit the program end code from programs that are used as subprograms. An end

program code is assumed when the end of the main program is encountered.

Main program, subprogram, and subroutines

When it is necessary to machine the same pattern at many places on a part, a program for the

pattern should be created. This is called a subprogram. When a “M98" or “Call” (subprogram

call) appears in the main program, the commands of the subprogram are performed before

execution of the next block of the main program.