Siemens SIMATIC ET 200M Operating Instructions Manual page 165

Example configuration of a redundant DP master system and IM 153-2
The following figure shows an example configuration on an S7-400H. For the S7-400H the
ET 200M is a one-channel switched (distributed) I/O. For detailed assembly instructions for
H systems, refer to the"S7-400H automation system, fault-tolerant systems
(http://support.automation.siemens.com/WW/view/en/1186523)" manual.
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3
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Figure 8-20
ET 200M
Operating Instructions, 12/2008, EWA-4NEB780600602-08
S7-400H automation system
ET 200M distributed I/O with 2 x IM 153-2
redundant DP master system
Redundancy with 2 x IM 153-2 in an H system
8.4 Redundancy with IM 153-2
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Functions
163