Safety Integrated - Industry - Siemens

Passivation (of entire module or channel)
What happens during passivation?
The entire F-I/O-module or individual channels of an F-I/Omodule
can be passivated by the F-system or the safety program.
The extent of passivation varies depending on the trigger
of the passivation:
Cause of the passivation: Extend of the passivation:
Safety program The passivation affects the entire
F-module.
I.e. all channels of the F-I/O-module
are passivated.
F-System Passivation affects either the entire
F-module, or only the faulty channels.
The desired behavior can be adjusted
via settings in the STEP 7 hardware
configuration.
Passivation has the following effect:
Passivation: Effect of passivation:
F-input module (F-DI) The safety program is not provided
with the process values pending at
the input.
The safety program is provided
with the substitute values ("0") in
the process image of the inputs.
F-output module (F-DO) The output values provided by the
safety program in the process image
of the outputs are not transmitted
to the outputs.
At the outputs the substitute values
("0") are output.
Note
During passivation of F-input modules (F-DI) the process
image of the respective inputs is only reset when
processing the safety program.
Functional Example No. AS-FE-I-011-V10-EN 353
Ex. No.
11