Siemens Simatic S7 Series

Technical specifications
A.10 EM DP01 PROFIBUS DP module
S7-200 SMART
650 System Manual, 09/2015, A5E03822230-AC
A.10.2
Connector pin assignments for EM DP01
The RS485 communication serial port on the EM DP01 is RS485-compatible on a nine-pin
subminiature D female connector, in accordance with the PROFIBUS standard as defined in
the European Standard EN 50170. The following table shows the connector that provides
physical connection for the communication port and describes the communication port pin
assignments.
Table A- 151 Pin assignments for the S7-200 SMART EM DP01
Pin Number
Connector
PROFIBUS
1
Shield
2 24 V Return
3
RS485 Signal B
4 Request-to-Send
5
5 V Return
6
+5 V (isolated)
7
+24 V
8
RS485 Signal A
9 NC