Rockwell Automation Publication 1769-UM011H-EN-P - April 2012 41
Chapter 3
Connect to the Controller via the Serial Port
This chapter describes how to connect to the controller via the serial port so that
you can configure the controller and upload or download a project to
the controller.
For the CompactLogix controller to operate on a serial network, you need:
• a workstation with a serial port.
• RSLinx software to configure the serial communication driver.
• RSLogix5000 programming software to configure the serial port of the
controller.
Connect to the Controller via
the Serial Port
Channel 0 on the CompactLogix controllers is fully isolated and does not need a
separate isolation device. Channel 1 on the 1769-L31 is not an isolated
serial port.
Figure 3 - Serial Connection to Controller
If you connect channel 1 of the 1769-L31 controller to a modem or an ASCII
device, consider installing an isolator between the controller and modem or
ASCII device. An isolator is also recommended when connecting the controller
directly to a programming workstation. One possible isolator is the 1761-NET-
AIC interface converter.
For more information on installing an isolator, see Configure an Isolator on page
57.
Topic Page
Connect to the Controller via the Serial Port 41
Configure the Serial Driver 43
Select the Controller Path 45
Personal Computer
1747-CP3 or 1756-
CP3 Serial Cable
1769-L31 Controller
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