Siemens SIMATIC PCS 7 Function Manual page 127

4. Double-click the I/O device you want to connect:
– ET 200M
– ET 200iSP
5. Select the interface module:
– For ET 200M: IM 153-2 in the hardware catalog.
– For ET 200iSP: IM 152-1 whose hardware catalog description is "..., can be used
6. Drag the interface module to one of the two PROFIBUS DP lines.
The connection to the redundant line is established automatically.
7. Enter the PROFIBUS address in the "Properties - PROFIBUS Interface IM..." dialog box
and click "OK".
Fault-tolerant Process Control Systems (V8.1)
Function Manual, 11/2014, A5E34878832-AA
redundantly in the H system".
Advantages of fault-tolerant components
4.4 Distributed I/O
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