HEIDENHAIN iTNC 530 (340 49x-05) - Manual (Page 260)

260 Programming: Subprograms and Program Section Repeats
8.3 Pr
ogr
am Section Repeats
8.3 Program Section Repeats
Label LBL
The beginning of a program section repeat is marked by the label LBL.
The end of a program section repeat is identified by CALL LBL n REPn.
Operating sequence
1 The TNC executes the part program up to the end of the program
section (CALL LBL n REPn)
2 Then the program section between the called LBL CALL LBL n REPn
is repeated the number of times entered after REP
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
U 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
U Enter the program section
Calling a program section repeat
U Press the LBL CALL key
U To call subprograms/section repeats : 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
U Repeat REP : Enter the number of repeats, then
confirm with the ENT key
0 BEGIN PGM ...
LBL1
CALL LBL 1 REP 2
END PGM ...
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2
3
R R
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