HEIDENHAIN TNC 410 - Manual (Page 208)

195 HEIDENHAIN TNC 410
9.3 Program Section Repeats
Programming a subprogram
ú To mark the beginning, press the LBL SET key and
enter a label number.
ú Enter the subprogram.
ú To mark the end, press the LBL SET key and enter the
label number “0”.
Calling a subprogram
ú To call a subprogram, press the LBL CALL key.
ú Label number: Enter the label number of the
subprogram to be called, then confirm with the END
key.
CALL LBL 0 is not permitted (label 0 is only used to mark
the end of a subprogram).
9.3 Program section repeats
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 REP.
Operating sequence
1 The TNC executes the part program up to the end of the program
section (CALL LBL REP).
2 Then the program section between the called LBL and the label
call CALL LBL REP is repeated the number of times entered after
REP.
3 The TNC then resumes the part program after the last repetition.
Operating constraints
■ You can repeat a program section up to 65 534 times in
succession.
■ In the additional status display the TNC shows how many
repetitions remain (see section ”1.4 Status Displays”).
■ The total number of times the program section is executed is
always one more than the programmed number of repeats.
BEGIN PGM ...
LBL1
CALL LBL1 REP 2
END PGM ...