Mpi/Dp Interface - Siemens SCALANCE M804PB Operating Instructions Manual

5.6

MPI/DP interface

Pin assignment
The MPI/DP socket has the following pin assignment:
Signal description
Pin no. Short name
1 NC
2 NC
3 LTG_B
4 RTS_AS
5 M5V
6 P5V
7 NC
8 LTG_A
9 RTS_PG
Shield -
SCALANCE M804PB
Operating Instructions, 07/2018, C79000-G8976-C496-01
Meaning
not connected
not connected
Data line B
RTSAS, control signal for received data stream.
The signal is '1' active when the directly connect-
ed S7 automation system sends.
Reference potential of the MPI/DP interface for
the signals RTS_AS and RTS_PG
+5 V (only for bus termination)
not connected
Data line A
RTS output signal of the SCALANCE M804PB.
The signal is '1' active when the SCALANCE
M804PB sends.
The signal is not included in the 0.3 m MPI cable.
on connector housing
For more on this, refer to the information on the
grounding concept in the system manual
"SIMATIC NET PROFIBUS Network Manual
(https://support.industry.siemens.com/cs/ww/en/v
iew/35222591)".
Connecting up
5.6 MPI/DP interface
Input/output
-
-
Input and output
Input
Output
Output
-
Input and output
Output
-
47