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Diagnostic
Message
Discrepancy
error (1oo2
evaluation)
For more detailed information on passivation and reintegration of F-I/O, refer to
Chapter 6 and the S7 Distributed Safety, Configuration and Programming manual
or Programmable Controllers S7 F/FH Systems.
Generally Applicable Information on Diagnostics
For general information on diagnostics (for example on reading out diagnostic
functions, passivating channels), refer to Chapter 6.
ET 200eco Distributed I/O Station Fail-Safe I/O Module
A5E00297494-02
Possible Causes
Faulty process signal
Defective sensor
Short circuit between unconnected
sensor cable and the sensor supply
cable
Wire break in connected sensor
cable or the sensor supply cable
Assigned discrepancy time too
short
Digital F I/O Module
Remedies
Check process signal, replace sensor
if necessary
Eliminate short circuit
Eliminate broken wire
Check the assigned discrepancy time
After eliminating the problem, the fail-
safe I/O module must be re-integrated
in the safety program.
8-27
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