HEIDENHAIN iTNC 530 (340 49x-01) ISO programming - Manual (Page 418)

418 9 Programming: Subprograms and Program Section Repeats
9.3 Pr
ogr
am Section Repeats
9.3 Program Section Repeats
Label G98
The beginning of a program section repeat is marked by the label
G98 L.
A program section repeat ends with Ln,m, where m is the
number of repeats.
Operating sequence
1 The TNC executes the part program up to the end of the program
section (L1.2).
2 Then the program section between the called label and the label
call L 1.2 is repeated the number of times entered after the
decimal point.
3 The TNC then 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
8 To mark the beginning, press the LBL SET key, then
confirm with the ENT key.
8 Enter a label number for the program section to be
repeated, then confirm with the ENT key. If you want
to use a label name, press the key ” to switch to text
entry.
Calling a program section repeat
8 Press the LBL CALL key.
8 Label number: Enter the label number of the
subprogram to be called, then confirm with the ENT
key. If you want to use a label name, press the key ”
to switch to text entry.
8 Repeat REP: Enter the number of repeats, then
confirm with the ENT key.
% ...
G98 L1 *
L1,2 *
N99999 % ...