Maintenance
14.8 Maintenance and repair
Automation system
System Manual, 01/2023, A5E03461182-AK
327
Reintegration of a fail-safe module
The system changes from fail-safe to process values (reintegration of an F-module) either
automatically or only after user acknowledgment in the safety program. If channel faults
occur, it may be necessary to remove and reinsert the F-module. A detailed listing of faults
requiring removal and insertion of the F-module can be found in the section Diagnostic
messages of the respective F-module.
After reintegration, the following occurs:
• In the case of an F-module with inputs, the process data pending at the fail-safe inputs is
made available to the safety program again
• In the case of an F-module with outputs, the output values provided in the safety program
are transferred to the fail-safe outputs again
Additional information on passivation and reintegration
For additional information on passivation and reintegration of F-I/O, refer to the SIMATIC
Safety, Configuring and Programming
(https://support.automation.siemens.com/WW/view/en/54110126) manual.
Reaction of the F-module with inputs to communication errors
F-modules with inputs respond differently to communication errors compared to other errors.
If a communication error is detected, the current process values remain set at the inputs of
the F-module. There is no passivation of the channels. The current process values are
passivated in the F-CPU.
14.8 Maintenance and repair
The components of the S7-1500 automation system/ET 200MP distributed I/O system are
maintenance-free.
Repairs to the components of the S7
-1500 automation system/ET 200MP distributed I/O
system may only be carried out by the manufacturer.
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