Safety Integrated - Industry - Siemens

Ex. No.
11 What type of passivation exists?
The following table gives an overview of the passivation:
Cause of the passivation Effect of the passivation Reaction in the
F-I/O-module data
block
Safety program Setting "PASS_ON = 1" in the F-I/O-module
data block
F-operating system
Startup of the F-CPU
Establishing communication between the F-
CPU and the F-I/O via the safety protocol according
to PROFIsafe.
F-communication error
Error at fail-safe communication between F-
CPU and F-I/O.
F-I/O error
(*1)
Module error
• Configuration error
• Overtemperature
Channel error
• Wire break
• Short circuit
• Discrepancy
• Overload
Explanations on the table:
(*1): "F-I/O faults" causes the following reaction:
■ The error is reported at the F-CPU (as standard reaction):
- The error is reported to the F-CPU via the slave diagnostics.
- OB82 for I/O errors is called in the F-CPU. If it does not
exist, it goes to the F-CPU in STOP.
■ Either the entire F-module or only the affected channels
are passivated (F-specific reaction).
(*2): In the hardware configuration of STEP 7 the project settings
can be selected: "Passivate the entire module" or "Passivate
the channels".
354 Functional Example No. AS-FE-I-011-V10-EN
.
Passivation of the F-module QBAD = 1
All channels:
QBAD_I_xx = 1
QBAD_O_xx = 1
Passivation of the entire F-I/O QBAD = 1
PASS_OUT = 1
All channels:
QBAD_I_xx = 1
Passivation of the F-module
QBAD_O_xx = 1
Passivation of the F-module
Configuration:
(*2)
"Passivation of entire
module"
"Passivation channel" QBAD = 1
PASS_OUT = 1
Only affected channel:
QBAD_I_xx = 1
QBAD_O_xx = 1