Rockwell Automation 160PD1 160 Profibus Communication Module - Manual (Page 17)

Installation and Wiring 3–7
Wiring the Connector The examples below can be used as a guide when wiring.
Important: Keep communication wiring away from high noise sources
such as motor cables. Use terminated cable only for the
last node (end of chain)
Figure 3.6
Wiring the PD1 Connector
The PDP network cables are connected to the PD1 module using a
9-pole D-Shell connector with a suitable opening facing downwards.
The pin layout of the connector follows the Profibus standard.
The Vcc (pin 6) and GND signal (pin 5) can be used for external bus
termination.
Important: Only use cable that conforms to ProfiBus cable standards.
Belden type 3079A ProfiBus cable or equivalent is
recommended.
Figure 3.7
Cable Termination
Termination resistors are only required at both ends of the network
Pin Name Function
Case Shield Bus cable shield. Connected to PE internally on the PD1
3 B-Line Positive
5 GND BUS Isolated GND
6 +5V BUS Isolated +5V Vcc*
8 A-Line Negative
9-Pin, Female D-Shell Connector
Pin 1 Pin 9
Ground Connection
Terminal
3 RxD/TxD-P
Vcc 6
390 220 390 Ohm
A
B
RxD/TxD-P 3
RxD/TxD-N 8
GND 5
8 RxD/TxD-N