Siemens ET 200pro - Page 518

Appendix
A.5 Connection examples
ET 200pro distributed I/O system
518 Operating Instructions, 03/2013, A5E00335544-08
Voltage sensors and current transmitters as 4-wire transducer with external power supply
Note
Non-isolated transducers
When wiring non
-isolated transducers, always make sure to wire M to the correct terminal.