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1 labeling subprograms and program section repeats, Labels – HEIDENHAIN TNC 406 User Manual

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9 Programming: Subprograms and Program Section Repeats

9.1 Labeling Subpr

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ams and Pr

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am Section Repeats

9.1 Labeling Subprograms and

Program Section Repeats

Subprograms and program section repeats enable you to program a
machining sequence once and then run it as often as desired.

Labels

The beginnings of subprograms and program section repeats are
marked in a part program by labels.

A label is identified by a number between 1 and 254. Each label can be
set only once with LABEL SET in a program.

LABEL 0 (LBL 0) is used exclusively to mark the end of a subprogram
and can therefore be used as often as desired.

For a better overview in this program window, LBL blocks and CALL
LBL blocks are indented to the left by one character.

If a label is set more than once, the TNC sends an error
message at the end of the LBL SET block.

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