As of PCS 7 V7.1, the characteristics of the redundant input/output modules are set for channel-
based reaction to channel faults. The function in the AS depends on the employed PCS 7
library and the modules.
Depending on the configured module, the code is automatically generated for the automation
system based on the optimal capabilities of the module.
Passivation reaction of the modules
You will find information on which modules are released for which passivation reaction in the
documentation
PCS 7 - Released Modules
.
Passivation reaction Reaction of the module
Module-based The module is passivated if a fault occurs.
Group-based If a fault occurs in a channel, the group of channels is passivated in a
module in which a least one fault has occurred.
Channel-based Only the channels on which the fault occurred are passivated.
Requirements
● The PCS 7 project is open in SIMATIC Manager.
● An H-CPU is configured in HW Config.
● S7 driver blocks from the "Redundant IO (V3.0)" or "Redundant IO (V4.0)" library
Procedure
1. In the component view, select the SIMATIC H station.
2. Double-click the "Hardware" object in the detail window.
HW Config opens.
3. Select the CPU you are using on slot 3.
4. Select the menu command Edit > Object Properties.
The "Properties - CPU ..." dialog box opens.
5. Select the "H Parameters" tab.
6. Please make a note of which data blocks in the "Data block no." input box are defined as
standard transmitters so that you do not use them in your configuration.
7. Select the required setting for the passivation behavior from the "Passivation behavior" list
in the "Redundant I/O" area.
– Module-based when the "Redundant IO (V3.0)" library is used
– Channel-based when the "Redundant IO (V4.0)" library is used
Additional information
● Function manual
Process Control System PCS 7; software update without utilization of new
functions
● Documentation
Process Control System PCS 7; PCS 7 - Released Modules
Advantages of high availability components
5.2 SIMATIC H station
High Availability Process Control Systems (V9.0)
114 Function Manual, 05/2017, A5E39221836-AA
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