Siemens SINUMERIK 840D sl Programming Manual page 63

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Assign and start interrupt routine, SETINT

The control has signals (inputs 1 to 8)

to interrupt the program run and start the corresponding interrupt routine.

The assignment of input to program is made in the main program.

N10 SETINT(3) PRIO=1 LIFT_Z

When input 3 is enabled, routine LIFT_Z is started immediately.

Start several interrupt routines, define the priority, PRIO=

If several SETINT instructions are programmed in your NC program and several signals can

therefore occur at the same time, you must assign the priority of the interrupt routines to

determine the order in which they are executed: PRIO 1 to 128, 1 has highest priority.

N10 SETINT(3) PRIO=1 LIFT_Z

N20 SETINT(2) PRIO=2 LIFT_X

The routines are executed successively in the order of their priority if the inputs are enabled

at the same time. First SETINT(3), then SETINT(2).

If new signals are received while interrupt routines are being executed, the current interrupt

routines are interrupted by routines with higher priority.

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Programming Manual, 03/2006 Edition, 6FC5398-2BP10-1BA0

1.14 Interrupt routine (SETINT, DISABLE, ENABLE, CLRINT)

Flexible NC programming