HEIDENHAIN ITNC 530 - 6-2010 DIN-ISO PROGRAMMING, User Manual

Page: 237 / 618

HEIDENHAIN iTNC 530 237
8.2 Subpr
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a
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8.2 Subprograms
Operating sequence
1 The TNC executes the part program up to the block in which a
subprogram is called with
Ln,0
2 The subprogram is then executed from beginning to end. The
subprogram end is marked
G98 L0
3 The TNC then resumes the part program from the block after the
subprogram call
Ln,0
Programming notes
„
A main program can contain up to 254 subprograms
„
You can call subprograms in any sequence and as often as desired
„
A subprogram cannot call itself
„
Write subprograms at the end of the main program (behind the block
with M2 or M30)
„
If subprograms are located before the block with M2 or M30, they
will be executed at least once even if they are not called
Programming a subprogram
U To mark the beginning, press the LBL SET key
U Enter the subprogram number. If you want to use a
label name, press the LBL NAME soft key to switch
to text entry
U To mark the end, press the LBL SET key and enter the
label number “0”
% ...
L1,0
G00 Z+100 M2
G98 L1 *
G98 L0 *
N99999 % ...
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