HEIDENHAIN TNC 320 (340 55x-04) - Manual (Page 209)

HEIDENHAIN TNC 320 209
7.
4 Separ
a
te
Pr
ogr
am as Subpr
ogr
am
7.4 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 after the program call
Programming notes
„ No labels are needed to call any program as a subprogram
„ The called program must not contain the miscellaneous functions
M2 or M30. If you have defined subprograms with labels in the
called program, you can then use M2 or M30 with the FN 9: IF +0
EQU +0 GOTO LBL 99
jump function to force a jump over this program
section
„ The called program must not contain a CALL PGM call into the calling
program, otherwise an infinite loop will result
0 BEGIN PGM A
CALL PGM B
END PGM A
0 BEGIN PGM B
END PGM B
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