Siemens Simatic PCS 7 Function Manual page 124

Advantages of high availability components
5.3 Communications connections
3. Select the "Graphic View" tab.
Note:
You can move the displayed objects. You can select the section displayed via the thumbnail
view. Position the objects in accordance with the cable sequence in the system.
4. Using drag-and-drop, connect the I/Os of the CPU and the interface modules (green
squares) in accordance with the cable sequence in the system.
You can make additional system-specific settings on the "Table View" tab. For additional
information, refer to the online help of the dialog box.
Additional information
● Online help for
124
STEP 7
High Availability Process Control Systems (V9.0)
Function Manual, 05/2017, A5E39221836-AA