Allen-Bradley 2711P-B10C4A8, Руководство пользователя

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144 Rockwell Automation Publication 2711P-UM006E-EN-P - January 2017
Chapter 6 Terminal Connections
Serial Connections The RS-232 serial port is multi-purpose and supports these connections:
• DH-485 communication through a serial connection
• DF1 full-duplex communication with controllers by using direct
connections or modem connections
• Third-party point-to-point communication
• Application transfers and printing
The serial port is a 9-pin, male, RS-232 connector. Table 66 shows the pinout
descriptions and how these pins map to the serial ports on the controllers.
The maximum cable length for serial communication is 15.24 m (50 ft).
Figure 16 - RS-232 Serial Port
1
5
6 9
Insert plastic tie wrap in
the hole and use as strain
relief for all attached cables.
Table 66 - RS-232 Serial Port Connector Pinout
PanelView Plus 6 RS-232 Port
9-pin DCE
SLC or Logix
9-pin
PLC
25-pin MicroLogix/
ENI 8-pin DIN
1
2
2 3 4
3
3 2 7
4
4 20
5
5 7 2
6
6 6
7
7 4
8
8 5
9
Connector Shell Chassis Gnd
WARNING: Do not connect or disconnect the communication cable with power
applied to the terminal, or the serial device on the other end of the cable. An
electrical arc could cause an explosion in hazardous location installations. Be
sure that power is removed or the area is nonhazardous before proceeding.
RXD
TXD
DTR
COM
DSR
RTS
CTS