Modem connection, Construct a null modem cable – Rockwell Automation 2711PC-xxxx PanelView Plus Compact User Manual User Manual
Page 91
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Publication 2711PC-UM001A-EN-P - March 2009
91
Terminal Connections Chapter 6
Modem Connection
Wire or radio modem communication is possible between the
terminal and controller. Each modem must support full duplex
communication. Refer to your modem user manual for details on
settings and configuration.
Construct a Null Modem Cable
To construct a null modem cable, refer to this pinout.
Null Modem Pinout
PanelView
9-pin
9-pin
Modem
PanelView
9-pin
25-pin
Modem
FG (Frame Ground)
-
-
-
1
FG
TD (Transmit Data)
3
2
3
3
RD
RD (Receive Data)
2
3
2
2
TD
RTS (Request to Send)
7
8
7
5
CTS
CTS (Clear to Send)
8
7
8
4
RTS
SG (Signal Ground)
5
5
5
7
SG
DSR (Data Set Ready)
6
4
6
20
DTR
DTR (Data Terminal Ready)
4
6
4
6
DSR
PanelView Plus Compact Terminal
DF1 Port
Modem
Modem
Optical Isolator
Controller
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