HEIDENHAIN TNC 122 User Manual - Manual (Page 47)

5 Programming
TNC 122 47
Program section repeats
Example: Entering a program section repeat: CALL L
C A L L L 5 R
Enter the desired number of repetitions R, for example 4.
Confirm your entry. The resulting program block is CALL L 5 R4 / 4
Select the LBL function. LBL
S E T = E N T / C A L L = L B L
LBL
Select CALL to call the label.
C A L L L 0
ENT
5
Enter the label number.
Confirm your entry.
After a CALL L block in the operating mode PROGRAM RUN, the
TNC repeats those program blocks that are located below the L
block with the called number and above the CALL LBL block.
Note that the program section will always be executed one more
time than the programmed number of repetitions.
ENT
4
Program blocks
0 BEGIN PGM 70 Start of program, program number
1 F 9999 High feed rate for pre-positioning
2 Z+20.000 Clearance height
5 M 3 Spindle ON, clockwise
6 X+30.000 R0 X coordinate infeed point slot
7 Y+10.000 R0 X coordinate infeed point slot
8 LBL 1 Start of program section 1
9 F 150 Machining feed rate during the program section repeat
10 Z-12.000 Infeed
11 IX+16.000 R0 Mill the slot
12 F 9999 High feed rate for retracting and pre-positioning
13 Z+2.000 Retract
14 IX-16.000 R0 Positioning in X
15 IY+15.000 R0 Positioning in Y
16 CALL L1 R4 / 4 Repeat program section 1 four times
17 Z+20.000 Clearance height
18 M 2 Stop program run, spindle STOP, coolant OFF
19 END PGM 70 End of program, program number