Siemens SIMATIC CPU 410 User Manual

Replacement of failed components during redundant operation
13.3 Replacement of components of the distributed I/O on PROFIBUS DP
CPU 410 Process Automation/CPU 410 SMART
System Manual, 05/2017, A5E31622160-AC
233
Replacement procedure
Proceed as follows to change PROFINET IO cables:
Step
What to do?
How does the system react?
1 Check the wiring and identify the faulty
PROFINET IO cable.
-
2 Replace the defective cable. 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.
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

Siemens SIMATIC CPU 410 Specifications

General

Brand	Siemens
Model	SIMATIC CPU 410
Category	Control Unit
Language	English