HEIDENHAIN TNC 426 B

HEIDENHAIN TNC 426 B, TNC 430
243
9.5 Nesting
9.5 Nesting
You can nest subprograms and program section repeats in the
following ways:
■
Subprograms within a subprogram
■
Program section repeats within a program section repeat
■
Subprograms repeated
■
Program section repeats within a subprogram
Nesting depth
The nesting depth is the number of successive levels in which
program sections or subprograms can call further program sections
or subprograms.
■
Maximum nesting depth for subprograms: 8
■
Maximum nesting depth for calling main programs: 4
■
You can nest program section repeats as often as desired
Subprogram within a subprogram
Example NC blocks
0 BEGIN PGM SUBPGM MM
...
17 CALL LBL 1
...
35 L Z+100 R0 FMAX M2
36 LBL 1
...
39 39 CALL LBL 2
...
45 LBL 0
46 LBL 2
...
62 LBL 0
63 END PGM SUBPGM MM
Call the subprogram marked with LBL1
Last program block of the
main program (with M2)
Beginning of subprogram 1
Call the subprogram marked with LBL2
End of subprogram 1
Beginning of subprogram 2
End of subprogram 2
LKAP9.PM6 30.06.2006, 07:04243
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