Siemens SIMATIC PCS 7 Configuration page 40

3 Configuring the redundant peripherals
3.1 CPU settings
Activity
4. Switch to the "H Parameters" tab.
Take note of those data blocks in the field
"Data block no.", which are defined as a
standard encoder, so that you don't use
them elsewhere in your configuration.
In the drop-down list "Passivation
behavior", select the desired setting
(channel-granular or module-granular).
Click the button "Calculate..." in the field
"Update the Standby CPU".
These settings are performed to calculate
the monitoring times.
Note:
This defines how the redundant input/output
modules behave in case of channel faults
(see chapter 1.4). This setting is intended
for all redundantly configured signal
modules that are connected to the CPU.
5. Switch to the "Cycle/Clock Memory" tab.
Under "OB 85 - call up at I/O access error",
select "Only for incoming and outgoing
errors" from the drop-down list.
Click "OK" to close the properties dialog.
Note
For more information about the settings on the CPU, refer to the manual
"SIMATIC Process Control System PCS 7 Fault-tolerant Process Control
Systems".
Configuration of Redundant I/O Modules
Entry-ID: 28430682, V2.0, 03/2015
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