Connection examples for redundant I/Os
E.5 SM 321; DI 16 x DC 24V, 6ES7 321–7BH00–0AB0
S7-400H
System Manual, 03/2012, A5E00267695-11
465
E.5 SM 321; DI 16 x DC 24V, 6ES7 321–7BH00–0AB0
The diagram below shows the connection of two redundant encoder pairs to two SM 321; DI
16 x DC 24V. The encoders are connected to channels 0 and 8.
9
&+
&+
&+
&+
9V
9V
9V
9V
0
Figure E-5 Example of an interconnection with SM 321; DI 16 x DC 24V
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