Connection examples for redundant I/Os
C.8 SM 321; DI 8 x AC 120/230 V, 6ES7 321–1FF01–0AA0
CPU 410 Process Automation/CPU 410 SMART
398 System Manual, 05/2017, A5E31622160-AC
SM 321; DI 8 x AC 120/230 V, 6ES7 321–1FF01–0AA0
The diagram below shows the connection of two redundant encoders to two SM 321; DI 8
AC 120/230 V. The encoders are connected to channel 0.
Figure C-6 Example of an interconnection with SM 321; DI 8 x AC 120/230 V
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