Rockwell-automation 2711 MODBUS COMMUNICATIONS FOR PANELVIEW TERMINALS Manual de usuario Pagina 7

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Publication 2711-6.9
Modbus Communications for PanelView Terminals 7
Connector Pinout
Definitions
The communication type is downloaded with an application or is set
on the terminal configuration screen. The PanelView supports RS-232,
RS-485 and RS-422 communication standards. The Modbus 9-pin male
D shell connector has the following pin definitions for each standard.
1. In RS-485 mode, pin 2 and pin 3 require an external jumper to electrically connect
pins 2 and 3.
2. In RS-485 mode, pin 7 and 8 require an external jumper to electrically connect pins 7
and 8.
3. These pins must remain unconnected.
Pin
Number
Function
RS-232 RS-485/RS-422
1 Shield Shield
2RXD
RXD
1 ,2
3TXD TXD
4DTR
See note
3
5 COMMON COMMON
6DSR
See note
3
7 RTS TXD
8CTS
RXD
1,2
9 No Connection No Connection
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