Replacement Of Components Of The Distributed I/O On Profibus Dp - Siemens SIMATIC CPU 410 System Manual

Replacement procedure
Proceed as follows to change PROFINET IO cables:
Step
1
2
13.3 Replacement of components of the distributed I/O on PROFIBUS
DP
Which components can be replaced?
The following components of the distributed I/Os can be replaced during operation:
● PROFIBUS DP master
● PROFIBUS DP interface module (IM 153-2 or IM 157)
● PROFIBUS DP slave
● PROFIBUS DP cable
● Input/output or function modules in a distributed station
CPU 410 Process Automation/CPU 410 SMART
System Manual, 05/2017, A5E31622160-AC
Replacement of failed components during redundant operation

13.3 Replacement of components of the distributed I/O on PROFIBUS DP

What to do?
Check the wiring and identify the faulty
PROFINET IO cable.
Replace the defective cable.
How does the system react?
-
CPUs process error OBs synchronously
With one-sided I/O:
•
Rack failure OB 86 (outgoing event)
IO devices can be addressed through the
IO controller.
With switched I/O:
•
I/O redundancy error OB 70 (outgoing
event).
IO devices can be addressed through both
IO controllers.
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