HEIDENHAIN TNC 406 - Manual (Page 199)

178 9 Programming: Subprograms and Program Section Repeats
9.4 Separ
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9.4 Separate Program as
Subprogram
Operating sequence
1 The TNC executes the part program up to the block in which
another program is called with CALL PGM.
2 Then the other program is run from beginning to end.
3 The TNC then resumes the first (calling) part program with the
block behind the program call.
Programming notes
„
Programs called from external storage media must not contain
subprograms or program section repeats.
„ No labels are needed to call any program as a subprogram.
„ The called program must not contain the miscellaneous functions
M2 or M30.
„ The called program must not contain a program call into the calling
program, otherwise an infinite loop will result.
Calling any program as a subprogram
8 To select the functions for program call, press the
PGM CALL key.
8 Program Name: Enter the name of the program to be
called.
0 BEGIN PGM A
CALL PGM B
END PGM A
0 BEGIN PGM B
END PGM B
You can also call a program with Cycle 12 PGM CALL (see
also ”Calling Cycle 12 PGM-CALL” on page 171).