Rockwell Automation 1794-FLA FlexLogix Controller Installation Instructions - Manual (Page 18)

18 FlexLogix Controller System
Publication 1794-IN002G-EN-P - January 2004
Make an RS-232 Connection to the Controller
The RS-232 port is a non-isolated serial port built-in to the front of the controller.
To connect to the serial port:
1. Determine whether you need an optical isolator.
If you connect the controller to a device outside of the system’s enclosure,
consider installing an isolator between the controller and device.
One possible isolator is the 1761-NET-AIC interface converter.
serial port
port 1: DB-9 RS-232, DTE
baud rate selector switch
port 2: mini-DIN 8 RS-232
dc power source selector switch
terminals for external 24V
dc power supply