HEIDENHAIN iTNC 530 (60642x-03) ISO programming - Manual (Page 287)

HEIDENHAIN iTNC 530 287
9.5 If-then decisions with Q
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9.5 If-then decisions with
Q parameters
Function
The TNC can make logical if-then decisions by comparing a
Q parameter with another Q parameter or with a numerical value. If
the condition is fulfilled, the TNC continues the program at the label
that is programmed after the condition (for information on labels, see
"Labeling subprograms and program section repeats", page 262). If it
is not fulfilled, the TNC continues with the next block.
To call another program as a subprogram, enter a % program call after
the block with the target label.
Unconditional jumps
An unconditional jump is programmed by entering a conditional jump
whose condition is always true. Example:
D09 P01 +10 P02 +10 P03 1 *