There are two types of program in cnc programming, there are main program and subprogram. Normally the CNC operates according to the main program. However, when a command calling a subprogram is encountered in the main program, control is passed to the subprogram. When a command specifiying a return to the main program is ecountered in a subprogram, control is returned to the main program.
The CNC memory can hold up to 400 main programs and subprograms. A main program can be selected from the stored main programs to oprate the machine.
Usually the program consist of the followong component.
Usually the program consist of the followong component.
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