HEIDENHAIN TNC 370 - 7.4 If-Then Operations with Q Parameters

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Programming with Q Parameters
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7.4 If-Then Operations with 0 Parameters
If-Then conditional operations enable the TNC 370 to compare a
Q parameter with another Q parameter or with a numerical value.
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Jumps
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The jump target is specified in the block through a label number. If the
programmed condition is true, the TNC continues the program at the
specified label; if it is false, the next block is executed.
To jump to another program, you enter a PGM CALL after the block with
the target label (see page 6-8).
Abbreviations used:
IF If
EQU Equals
NE Not equal
GT Greater than
LT Less than
GOT0 Go to
FN9: IF EQUAL, JUMP
e.g. FN9: IF +Ql EQU +Q3 GOT0 LBL 5
If the two values or parameters are equal,
jump to the specified label.
FNIO: IF NOT EQUAL, JUMP
e.g. FNIO: IF +I0 NE -Q5 GOT0 LBL 10
If the two parameters or values are not equal,
jump to the specified label.
FNII: IF GREATER THAN, JUMP
e.g. FNI 1: IF +Ql GT+lO GOT0 LBL 5
If the first value or parameter is greater than the second
value or parameter, jump to the specified label.
FN12: IF LESS THAN, JUMP
e.g. FN12: IF +Q5 LT +0 GOT0 LBL 1
If the first value or parameter is less than the second
value or parameter, jump to the specified label.
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TNC 370
7-9
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