STEP 5 Operations S5-115F Manual
Note
If interrupt processing is not required, you can reduce the PLC scan time.
Inhibit interrupt processing with the IA operation and switch off interval monitoring
when setting the operating system parameters with COM 115F.
STL ExplanationExample
Disable interrupt processing in
a specific program section and
then enable it again.
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= Q 7.5
IA
A I 2.3
JU FB 254
NAME: SYNC
SYNC: KM000-0010
:
:
:
JU FB 3
.
.
.
RA
.
.
.
Disable interrupt.
Synchronization FB call for
servicing process/time interrupts
If an interrupt occurs, the
program section between the
operations IA and RA is scanned
without interruption.
Enable interrupt.
Interrupts that occurred in the
meantime are processed after
the ”RA” operation.
1
1 Only one interrupt can be stored for each interrupt line.
3-54
EWA 4NEB 811 6149-02
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