Siemens ET 200pro Operating Instructions Manual page 312

Interface modules
12.2 Interface modules for PROFINET IO
Pin assignment of PROFINET IO and power supplies on the CM IM PN M12, 7/8" connection module
Note
If you deactivate the "Autonegotiation" function in STEP 7, you must observe the changed
pin assignment.
View of the M12 and 7/8" cable connectors
M12 cable connector, d-coded (PROFINET)
7/8" cable connectors (1L+ and 2L+ supply voltages)
312
Terminal Assignment
X02 P1 for connecting
PROFINET
1 TD (Transmit Data+)
2 RD (Receive Data+)
3 TD_N (Transmit Data-)
4 RD_N (Receive Data-)
Thread Functional earth (FE)
X03 DC 24V for feeding
X04 DC 24V for looping
1 Ground for load voltage supply 2M
2 Ground for electronics/encoder supply 1M
3 Functional earth (FE)
4 1L+ electronics/encoder supply
5 2L+ load voltage supply
Operating Instructions, 03/2013, A5E00335544-08
X02 P2 for connecting
PROFINET
RD (Receive Data+)
TD (Transmit Data+)
RD_N (Receive Data-)
TD_N (Transmit Data-)
ET 200pro distributed I/O system