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Description of the device
1.6 MPI/DP interface
1.6
MPI/DP interface
Pin assignment
The MPI/DP socket has the following pin assignment:
Signal description
Pin no.
Short description
1
NC
2
NC
3
LTG_B
4
RTS_AS
5
M5V
6
P5V
7
NC
8
LTG_A
9
RTS_PG
Shield
-
* The shield is connected through to the USB socket via the adapter electronics module.
12
Meaning
not connected
not connected
Data line B
RTSAS, control signal for received data stream.
The signal is '1' active when the directly
connected 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 PC Adapter USB A2.
The signal is '1' when the PC Adapter USB A2
sends.
The signal is not included in the 0.3 m MPI cable!
on connector housing*
Input/output
-
-
Input and output
Input
Output
Output
-
Input and output
Output
-
Operating Instructions, 07/2022, C79000-G8976-C293-03
PC Adapter USB A2
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