Siemens SIMATIC PCS 7 - SM 321; DI 16 X AC 120;230 V, 6 ES7 321-1 FH00-0 AA0

Connection examples for redundant I/Os
C.7 SM 321; DI 16 x AC 120/230V, 6ES7 321–1FH00–0AA0
CPU 410 Process Automation/CPU 410 SMART
System Manual, 05/2017, A5E31622160-AC
397
C.7
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 C-5 Example of an interconnection with SM 321; DI 16 x AC 120/230 V