4 separate program as subprogram, Operating sequence, Programming notes – HEIDENHAIN iTNC 530 (340 49x-05) User Manual
Page 261: Calling any program as a subprogram

HEIDENHAIN iTNC 530
261
8.4 Separ
a
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Pr
ogr
am as Subpr
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am
8.4 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
Calling any program as a subprogram
U
To select the functions for program call, press the
PGM CALL key
U
Press the PROGRAM soft key
U
Enter the complete path name of the program you
want to call and confirm your entry with the END key
0 BEGIN PGM A
CALL PGM B
END PGM A
0 BEGIN PGM B
END PGM B
1
3
2
S
R