Fundamentals
Programming Manual, 10.2004 Edition, 6FC5 298-7AB00-0BP1
11-1
Subprograms and Repetition of Program Sections
11
11.1 Use of subprograms
Function
In principle, a subprogram has the same structure as a parts program. It consists of NC
blocks with traversing and switching commands. Basically, there is no difference between a
main program and a subprogram. The subprogram contains either machining operations or
sequences of operations that are to be performed several times.
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Parameters
M17 End of subprogram, return to the calling program.
RET
Subprogram end if continuous-path mode should not be
interrupted by retraction. RET must be programmed in a
separate block.
M30 The program end M30 set in the main program is evaluated
like M17 in the subprogram. This, therefore, enables a main
program to be called as a subprogram.
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