Mpi/Dp Interface - Siemens SIMATIC 6ES7 972-0CB20-0XA0 Manual

Pc adapter usb
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4.4

MPI/DP Interface

Connector Pin Assignment
The MPI/DP socket is configured as follows:
Description of Signals
Pin.
Abbreviated
No.
Name
1
NC
2
M24V
3
LTG_B
4
RTS_AS
5
M5V
6
P5V
7
P24V
8
LTG_A
9
RTS_PG
Shield
*
The shielding is provided by a continuous screen from the adapter housing to the
USB socket.
PC Adapter USB
A5E00166354-02
13.05.2003
13.05.2003
3.05.2003
13.05.2003
Hardware Design of the PC Adapter USB
5
1
9
6
Meaning
Not used
24V supply's 0V line,
supplies adapter electronics
via DC/DC converter (PC potential area)
Data line B
RTSAS control signal for
receive data current. The signal
is active '1' when the directly
connected AS is transmitting.
Reference potential of the MPI/DP
interface for the RTS_AS and RTS_PG
signals
non used
24V supply's +24V line,
supplies adapter electronics
via DC/DC converter (PC potential area)
Data line A
Adapter's RTS output signal. The signal is
'1' when the adapter is transmitting.
The signal is not contained in the 0.3 m
MPI cable!
On socket casing*
Input/
Output
Input
Input/output
Input
Input
Input
Input/output
Output
4-5

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