HEIDENHAIN TNC 640 (34059x-05) - Manual (Page 282)

Programming: Subprograms and program section repeats
8.2 Subprograms
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TNC 640 | User's Manual
HEIDENHAIN Conversational Programming | 1/2015
Calling a subprogram
Call a subprogram: Press the
LBL CALL key
Enter the subprogram number of the subprogram
you wish to call. If you want to use a label name,
press the
LBL NAME soft key to switch to text
entry.
If you want to enter the number of a string
parameter as target address, press the QS soft
key. The TNC will then jump to the label name that
is specified in the defined string parameter
Ignore repeats
REP by pressing the NO ENT key.
Repeat
REP is used only for program section
repeats
CALL LBL 0 is not permitted as it is only used to call
the end of a subprogram.