Failure And Replacement Of A Communication Module - Siemens CPU 410-5H Process Automation System Manual

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11.1.4

Failure and replacement of a communication module

This section describes the failure and replacement of communication modules for
PROFIBUS and Industrial Ethernet.
The failure and replacement of communication modules for PROFIBUS DP are described in
section Failure and replacement of a PROFIBUS DP master (Page 176).
CPU 410-5H Process Automation/CPU 410 SMART
System Manual, 10/2013, A5E32631667-AA
Failure and replacement of components during redundant operation
What has to be done?
Disconnect the module from its peripheral
power supply, if necessary.
Disconnect the front connector and wiring.
Remove the failed module (in RUN mode).
Insert the new module.
Plug the front connector into the new
module.
11.1 Failure and replacement of central components
How does the system react?
If the affected module can generate
•
diagnostic interrupts and if diagnostic
interrupts are enabled as per
configuration, a diagnostic interrupt is
generated.
Call OB 122 if you are accessing the
•
module by direct access
Call OB 85 if you are accessing the
•
module using the process image
Both CPUs generate a remove/insert
•
interrupt and enter the event in the
diagnostic buffer and the system status
list.
Both CPUs generate a remove/insert
•
interrupt and enter the event in the
diagnostic buffer and the system status
list.
Parameters are assigned automatically
•
to the module by the CPU concerned
and the module is addressed again.
If the affected module can generate
•
diagnostic interrupts and if diagnostic
interrupts are enabled as per
configuration, a diagnostic interrupt is
generated.
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