Rockwell Automation 2711P Creating Modbus Applications - Manual (Page 57)

Publication 2711P-UM002B-EN-P - March 2007
Compiling, Downloading, and Running Application 57
Null Modem Cable
To construct a null modem cable, refer to the following pinout:
Modbus Ethernet Cables
The RJ45 connector pinout for the PanelView Plus or VersaView
Terminal is shown below.
Use point-to-point, 10/100Base-T cables with cross over pin-outs
(such as 2711P-CBL-EX04) when connecting the Ethernet port on the
PanelView Plus directly to a logic controller’s Ethernet port or a
computer 10/100Base-T port. Use standard Ethernet cables when
connecting to a switch or hub.
Terminal Controller
9-pin 25-pin 9-pin
3 3 3
2 2 2
5 7 5
1 8 1
4 20 4
6 6 6
8 5 8
7 4 7
Connector Pin Pin Name
RJ45
Connector
1 TD+
2 TD-
3 RD+
4 NC
5 NC
6 RD-
7 NC
8 NC
Shield Connection Chassis Gnd
1
8