HEIDENHAIN iTNC 530 (340 420) ISO programming - Manual (Page 373)

HEIDENHAIN iTNC 530 373
9.2 Subpr
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9.2 Subprograms
Operating sequence
1 The TNC executes the part program up to the block in which a
subprogram is called with LN.0. n can be any label number.
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
n
A main program can contain up to 254 subprograms.
n You can call subprograms in any sequence and as often as desired.
n A subprogram cannot call itself.
n Write subprograms at the end of the main program (behind the block
with M2 or M30).
n If subprograms are located before the block with M02 or M30, they
will be executed at least once even if they are not called.
Programming a subprogram
U U U U To mark the beginning, press the LBL SET key.
U U U U Enter the subprogram number and confirm with the
END key.
U U U U To mark the end, press the LBL SET key and enter the
label number "0".
Calling a subprogram
U U U U To call a subprogram, press the LBL CALL key.
U U U U Label number: Enter the label number of the
subprogram to be called, then confirm with the ENT
key.
U U U U Repeat REP: Enter ".0“, then confirm with the ENT key.
% ...
L1,0
G00 Z+100 M2
G98 L1 *
G98 L0 *
N99999 % ...
L0.0 is not permitted, as it corresponds to the program
end call.