Siemens SIMATIC ET 200S Installation And Operating Manual page 152

Fail-Safe Modules
7.6 4 F-DO DC24V/2A PROFIsafe digital electronic module
Diagnostic
Message
Safety-related
shutdown
Generally Applicable Information on Diagnostics
For information on diagnostics that pertains to all fail-safe modules (for example for reading
out diagnostic functions, passivating channels), refer to
See also
Fault Diagnostics (Page 5-3)
7-92
Fault Possible Causes
Detection
Configuration of the
F-module does not match
fail-safe program
Always Switching frequency
exceeded
Hardware Installation and Operating Manual, 07/2005, A5E00103686-04
Corrective Measures
Generate safety program again; then
load configuration and safety program
into F-CPU again
Reduce the switching frequency
"Diagnostics"
in this manual.
ET 200S Distributed I/O System - Fail-Safe Modules