Sm 321; Di 16 X Dc 24V, 6Es7 321-7Bh00-0Ab0 - Siemens SIMATIC S7-400H System Manual

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.
Figure E-5
S7-400H
System Manual, 03/2012, A5E00267695-11
Example of an interconnection with SM 321; DI 16 x DC 24V
Connection examples for redundant I/Os
E.5 SM 321; DI 16 x DC 24V, 6ES7 321–7BH00–0AB0
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