F.11 Sm 421; Di 16 X Dc 24 V, 6Es7 421-7Bh01-0Ab0 - Siemens SIMATIC S7-400H System Manual

Connection examples for redundant I/Os
F.11 SM 421; DI 16 x DC 24 V, 6ES7 421–7BH01–0AB0
F.11 SM 421; DI 16 x DC 24 V, 6ES7 421–7BH01–0AB0
The diagram below shows the connection of two redundant encoders pairs to two SM 421;
D1 16 x 24 V. The encoders are connected to channel 0 and 8.
Figure F-11
346
Example of an interconnection with SM 421; DI 16 x 24 V
System Manual, 09/2007, A5E00267695-03
S7-400H