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Repeating a subprogram – HEIDENHAIN TNC 620 (81760x-02) User Manual

Page 286

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Programming: Subprograms and program section repeats

8.5

Nesting

8

286

TNC 620 | User's Manual

HEIDENHAIN Conversational Programming | 2/2015

Repeating a subprogram

Example NC blocks

0 BEGIN PGM UPGREP MM
...
10 LBL 1

Beginning of program section repeat 1

11 CALL LBL 2

Subprogram call

12 CALL LBL 1 REP 2

Program section call with two repeats

...
19 L Z+100 R0 FMAX M2

Last block of the main program with M2

20 LBL 2

Beginning of subprogram

...
28 LBL 0

End of subprogram

29 END PGM UPGREP MM

Program execution

1 Main program UPGREP is executed up to block 11.
2 Subprogram 2 is called and executed.
3 Program section between block 12 and block 10 is repeated

twice. This means that subprogram 2 is repeated twice.

4 Main program UPGREP is executed from block 13 up to block

19. Return jump to block 1 and end of program