HEIDENHAIN TNC 640 (34059x-04) ISO programming - Manual (Page 251)

Program-section repeats 8.3
8
TNC 640 | User's Manual for DIN/ISO Programming | 3/2014
251
8.3 Program-section repeats
Label G98
The beginning of a program section repeat is marked by the label
G98 L. The end of a program section repeat is identified by
Ln,m.
Operating sequence
1 The TNC executes the part program up to the end of the
program section ( Ln,m)
2 Then the program section between the called LABEL and the
label call Ln,m is repeated the number of times entered after M
3 The TNC resumes the part program after the last repetition.
Programming notes
You can repeat a program section up to 65 534 times in
succession
The total number of times the program section is executed is
always one more than the programmed number of repeats
Programming a program section repeat
To mark the beginning, press the LBL SET key
and enter a LABEL NUMBER for the program
section you wish to repeat. If you want to use a
label name, press the
lbl name soft key to switch
to text entry
Enter the program section