Interrupts - Siemens SIMATIC ET 200M Operating Instructions Manual

9.1.3.10

Interrupts

Definition
The interrupt part of the slave diagnosis gives information about the interrupt type and the
cause of interrupt that has caused the slave diagnosis to trigger.
The interrupt part encompasses a maximum of 29 bytes. A maximum of 1 alarm can be
reported for each slave diagnosis.
Position in the diagnosis telegram
The position of the interrupt part in the slave diagnosis depends on the configuration of the
diagnosis frame and on the number of channel-related diagnoses. The interrupt part is always
the last part in the diagnosis frame
Contents
The contents of the interrupt information depend on the interrupt type:
With diagnosis interrupts (as of byte x+4) the diagnostics data record 1 for SIMATIC S7 (e.g.
16 bytes) is sent as additional interrupt information. For digital and analog modules you will
find the meaning of the bytes in the figures below.
With hardware interrupts the length of the additional interrupt information is 4 bytes. The
meaning of these bytes can be found in the following figures. With end of cycle interrupts,
these bytes are always FF
With removal / insert interrupts the length of the additional interrupt information is 5 bytes.
The meaning of these bytes can be found in the following figures.
Removing and inserting interrupts
In order to be able to insert and remove modules during operation you must configure the ET
200M with active bus modules. With the switch "Removing and inserting interrupts" you can
configure whether the removal or insertion events are to be reported as an interrupt in the
diagnostics frame. If you block "Removing and inserting interrupts", then in an active bus
module configuration it is still possible to insert and remove modules. These events will then
be portrayed exclusively on the identifier-related diagnosis and module status. Information
on the behavior of the older IM 153-x versions can be found in the "Compatibilities between
the versions of IM 153-2 / -2 FO (Page 243)" and "Compatibilities between the versions of IM
153 and IM 153-1 (Page 241)" appendices.
In a configuration with active bus modules, each removal and insertion of modules causes
the station to fail.
Note
If you insert or remove a dummy module DM 370, then no inserting or removing interrupt is
triggered.
ET 200M
Operating Instructions, 04/2022, EWA-4NEB7806006-09
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Interrupt, error and system messages
9.1 PROFIBUS DP
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