Siemens SIMATIC PCS 7 Configuration page 21

2 Configuring and wiring
2.3 Redundant connections of the distributed I/O
Example
An encoder is connected to channel 0 of each of the two SM 321; DI 16 x DC 24 V:
Figure 2–2
Configuration of Redundant I/O Modules
Entry-ID: 28430682, V2.0, 03/2015
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