Triggering Of A Pull/Plug Interrupt; Triggering Of A Maintenance Event - Siemens SIMATIC ET 200SP Manual

Interrupts, error messages, diagnostics and system alarms
5.2 Interrupts
5.2.3

Triggering of a pull/plug interrupt

Triggering of a pull/plug interrupt
In the event of a pull/plug interrupt, the CPU interrupts processing of the user program and
processes the pull/plug OB (OB 83). The event that triggered the interrupt is entered in the
start information of the pull/plug OB.
Note
Parameter assignment error after removal/insertion
If you write data records from the user program to the modules of the distributed I/O, make
sure that these modules actually exist and are available. You can do this by evaluating OB83.
After inserting a module, OB83 is not called until the module has started up and its
parameters are assigned. This ensures that data record operations can be executed without
errors.
5.2.4

Triggering of a maintenance event

Triggering of a maintenance event
The PROFINET IO interfaces of the interface module support the diagnostic concept and
maintenance concept in PROFINET IO according to the IEC 61158 Type 10 standard. The goal
is to detect and remove potential problems as early as possible.
For the interface module, maintenance events signal to the user when a plant component
must be checked or replaced.
The CPU interrupts the processing of the user program and processes the diagnostic interrupt
OB (OB 82). The event that triggered the maintenance event is entered in the start
information of the diagnostic interrupt OB.
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Interface Module IM 155-6 PN R1 (6ES7155-6AU00-0HM0)
Equipment Manual, 11/2022, A5E51160307-AA