Connection Examples For Redundant I/Os; Sm 321; Di 16 X Dc 24 V, 6Es7 321-1Bh02-0Aa0; F.1 Sm 321; Di 16 X Dc 24 V, 6Es7 321–1Bh02–0Aa0 - Siemens SIMATIC S7-400H System Manual

Connection examples for redundant I/Os

F.1 SM 321; DI 16 x DC 24 V, 6ES7 321–1BH02–0AA0
The diagram below shows the connection of two redundant encoders to two SM 321;
DI 16 x DC 24 V. The encoders are connected to channel 0.
S7-400H
System Manual, 09/2007, A5E00267695-03
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