Program Section Repeats - HEIDENHAIN iTNC 530 User Manual

8.3 Program Section Repeats

Label G98
The beginning of a program section repeat is marked by the label
G98 L. The end of a program section repeat is identified by Ln,m.
Operating sequence
1 The TNC executes the part program up to the end of the program
section (Ln,m)
2 Then the program section between the called LBL Ln,m is repeated
the number of times entered for m
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 Call subprogram /repeat: Enter the label number of
the subprogram you wish to call. If you want to use a
label name, press the LBL NAME soft key to switch
to text entry. If you want to enter the number of a
string parameter as target address: Press the QS soft
key; the TNC will then jump to the label name that is
specified in the string parameter defined.
U Repeat REP: Enter the number of repeats, then
confirm with the ENT key.
260 Programming: Subprograms and Program Section Repeats