
SIMATIC S7 3964(R)/RK512 Driver
GP-Pro EX Device/PLC Connection Manual
16
5
Cable Diagram
The cable diagram shown below may be different from the cable diagram recommended by Siemens AG. Please
be assured there is no operational problem in applying the cable diagram shown in this manual.
•
The FG pin of the main body of the External Device must be D-class grounded. Please refer to the manual of
the External Device for more details.
•
SG and FG are connected inside the Display. When connecting SG to the External Device, design the system
not to form short-circuit loop.
Cable Diagram 1
Display
(Connection Port)
Cable
Remarks
GP (COM1)
Your own cable
The cable length must be
15m or less.
SG
RS(RTS)
5
7
CS(CTS)
8
RD(RXD)
2
SD(TXD)
3
ER(DTR)
4
DR(DSR)
6
SG
RS(RTS)
5
7
CS(CTS)
8
SD(TXD)
3
RD(RXD)
2
ER(DTR)
4
DR(DSR)
6
Display
D-sub 9 pin (socket)
External Device
D-sub 9 pin (socket)
Shield
Pin
Signal
name
Pin
Signal
name