Siemens SIMATIC Box PC 840 Manual page 137

PROFIBUS/MPI Socket Connector *, X400
The MPI/DP socket connector on the SIMATIC box PC 840 has the following
pinout:
Figure 7-7 PROFIBUS/MPI Socket Connector
Pin No.
1
2
3
4
5
6
7
8
9
Screen
* Optional product feature
SIMATIC Box PC 840 Manual
A5E00085984-04
1
5
Designation Description
- Unassigned
- Unassigned
LTG_B Signal line B of MPI module
RTS_AS RTSAS, control signal for received data
stream. The signal is "1" active when the
directly connected programmable controller is
sending.
M5EXT M5EXT return line (GND) of the 5 V power
supply. The current load caused by an
external user connected between P5EXT and
M5EXT must not exceed the maximum of
90 mA.
P5 EXT P5EXT power supply (+5 V) of the 5 V power
supply. The current load caused by an
external user connected between P5EXT and
M5EXT must not exceed the maximum of
90 mA.
- Unassigned
LTG_A Signal line A of the MPI module
RTS_PG RTS output signal of the MPI module. The
control signal is "1" when the programming
device is sending.
on connector casing
6
9
Hardware Information
Input/Output
-
-
Input/output
Input
Output
Output
-
Input/output
Output
7-15