Siemens Simatic PCS 7 Function Manual page 112

Advantages of high availability components
5.2 SIMATIC H station
Requirements
● The PCS 7 project with a SIMATIC H station is open in SIMATIC Manager.
● HW Config is open.
● The racks for the SIMATIC H station are inserted in HW Config, for example, 2 UR2-H racks.
● In HW Config, each rack has been fitted with an H CPU and the required synchronization
modules.
Procedure
1. In the hardware catalog, double-click the "SIMATIC 400" folder. Then double-click the
"CP-400" folder and finally the "Industrial Ethernet" folder.
2. Select the CP you are using and drag it to a free slot on the rack.
Note
Using a communication processor that supports multiple communication protocols
Configure the ISO interface for the "Fault-tolerant S7 connection" in the "Parameters" tab
of the "Properties - Ethernet Interface CP 443-1" dialog box.
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High Availability Process Control Systems (V9.0)
Function Manual, 05/2017, A5E39221836-AA