Siemens ET 200pro Operating Instructions Manual page 315

Block diagram
The figure below shows the block diagram of the IM 154-4 PN High Feature interface module
with CM IM PN M12, 7/8" as a possible connection module.
①
Connection for the electronics/encoder supply and load voltage supply (feed)
②
Connection for the electronics/encoder supply and load voltage supply (forwarding)
③
Connection for PROFINET IO (feed)
④
Connection for PROFINET IO (forwarding)
Figure 12-2 IM 154-4 PN High Feature block diagram
ET 200pro distributed I/O system
Operating Instructions, 03/2013, A5E00335544-08
12.2 Interface modules for PROFINET IO
Interface modules
315