Siemens Simatic PCS 7 Function Manual page 126

Advantages of high availability components
5.3 Communications connections
Result
The figure below shows the resulting configuration in HW Config for the X5 interface of the
CPU. The distributed I/O is connected to the PROFINET IO system. The physical setup is
configured below with the Topology Editor.
Connecting the components with the Topology Editor
1. Select the PROFINET IO system of the PROFINET-capable modules (CPU or CP) of this
automation system.
2. Select the Edit > PROFINET IO > Topology menu command.
The "Topology Editor" dialog box opens.
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High Availability Process Control Systems (V9.0)
Function Manual, 05/2017, A5E39221836-AA