Siemens SIMATIC S7 System Manual page 323

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ATCH, DTCH, and CEVENT

ATCH INT, EVNT

Non-fatal errors with ENO = 0

0002H Conflicting assignment of

inputs to an HSC

0016H Attempt to use HSC or edge

interrupt on input channel that is al-

ready allocated to a motion control

0019H Attempt to use a signal

board function without a signal

board installed and configured

0090H Invalid operand (illegal event

Input / output

S7-200 SMART

System Manual, V2.3, 07/2017, A5E03822230-AF

The attach interrupt instruction associates an interrupt event EVNT with an inter-

rupt routine number INT and enables the interrupt event.

The detach interrupt instruction disassociates an interrupt event EVNT from all

interrupt routines and disables the interrupt event.

The clear interrupt event instruction removes all interrupt events of type EVNT

from the interrupt queue. Use this instruction to clear the interrupt queue of un-

wanted interrupt events. If this instruction is being used to clear out spurious

interrupt events, then you should detach the event before clearing the events

from the queue. Otherwise new events will be added to the queue after the clear

event instruction has been executed.

SM bits affected

Constant: interrupt routine number (0 to 127)

Constant: interrupt event number

CPUs CR20s, CR30s, CR40s, and CR60s: 0-13, 16-18, 21-23, 27, 28, and 32

CPUs SR20/ST20, SR30/ST30, SR40/ST40, and SR60/ST60: 0-13 and 16-44

Program instructions

7.10 Interrupt

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Troubleshooting

Simatic s7-200 smart