HEIDENHAIN TNC 128 (77184x-01) - Manual (Page 168)

168 Programming: Subprograms and program section repeats
7.
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m section r
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peats
7.3 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 and the label
call 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
 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
Calling a program section repeat
 Press the LBL CALL key
 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
 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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