Sm 321; Di 16 X Ac 120/230V, 6Es7 321-1Fh00-0Aa0 - Siemens SIMATIC S7-400H System Manual

E.3 SM 321; DI 16 x AC 120/230V, 6ES7 321–1FH00–0AA0
The diagram below shows the connection of two redundant encoders to two SM 321; DI 16 x
AC 120/230 V. The encoders are connected to channel 0.
Figure E-3
S7-400H
System Manual, 03/2012, A5E00267695-11
E.3 SM 321; DI 16 x AC 120/230V, 6ES7 321–1FH00–0AA0
Example of an interconnection with SM 321; DI 16 x AC 120/230 V
Connection examples for redundant I/Os
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