Rockwell Automation 1747-KE,D17476.12 DH-485/RS-232C Interface Module - Manual (Page 42)

Publication 1747-UM005B-EN-P - March 2006
4-4 Installation and System Configuration
Set the Module’s Mode Setting the module’s mode depends on which method you want to
use to configure the module. You can configure the module using:
• an ASCII terminal.
• backplane communications.
Decide which method you want to use and then place the JW4 jumper
according to the directions given below.
Configure with an ASCII Terminal
Configuration of the interface module with an ASCII terminal is
allowed only when the JW4 jumper is in Configuration mode. Place
the module in the Configuration mode that corresponds to the
functionality you chose for the interface module.
JW4 in Configuration Mode
Configure Through the Backplane
Reading and writing configuration data through the backplane is
allowed only for series B interface modules, and then only when the
JW4 jumper is in the vertical Run mode position. Place the module in
vertical Run mode.
JW4 in Vertical Run Mode
IMPORTANT
You can only use backplane communications if you
selected series B functionality for the module.
Horizontal
Configuration
Mode
Vertical
Configuration
Mode
Series A Functionality Series B Functionality
JW4
Vertical Run Mode