HEIDENHAIN NC 124 - Manual (Page 98)

8 Subprograms and Program Section Repeats
98 TNC 124
Example: Entering a program section repeat: CALL LBL
Program Section Repeats
Go to the second soft-key row.
Call label.
The TNC offers the label number that was last set.
/
R e p e a t R E P ?
4
ENT
L a b e l n u m b e r ?
1
ENT
ENT
Accept the default label number.
Enter a label number (here, 1). Confirm your entry.
The current block now contains the called label: CALL LBL 1.
or or
Enter the number of repeats (here, 4).
Confirm your entry.
After a CALL LBL block in the operating mode PROGRAM RUN, the
TNC repeats those program blocks that are located behind the LBL
block with the called number and before the CALL LBL block.
Note that the program section will always be executed one more
time than the programmed number of repeats.
Program blocks
0 BEGIN PGM 70 MM
Start of program, program number, unit of measurement
1 F 9999
High feed rate for pre-positioning
2 Z+20
Clearance height
3 TOOL CALL 9 Z
Call tool data, here tool 9, tool axis Z
4 S 1800
Spindle speed
5 M 3
Spindle ON, clockwise
6 X+30 R0
X coordinate infeed point slot 1
7 Y+10 R0
Y coordinate infeed point slot 1
8 LBL 1
Start of program section 1
9 F 150
Machining feed rate during program section repeat
1 0 Z - 1 2
Infeed
1 1 I X + 1 6 R 0
Mill slot
1 2 F 9999
High feed rate for retracting and pre-positioning
1 3 Z + 2
Retract
1 4 I X - 1 6 R 0
Positioning in X
1 5 I Y + 1 5 R 0
Positioning in Y
1 6 CALL LBL 1 REP 4 / 4
Repeat program section 1 four times
17 Z+20
Clearance height
18 M 2
Stop program run, spindle STOP, coolant OFF
19 END PGM 70 MM
End of program, program number, unit of measurement