AB Quality 1769-L31 CompactLogix Installation Instructions Manual - page 17
1769-L31 CompactLogix™ Controller
17
Publication 1769-IN069A-EN-P - March 2004
Using the channel 0 default communication push button
The Channel 0 Default Communication Push Button is
located on the front of the controller in the lower right
corner as shown in the illustration below.
Use the Channel 0 Default Communication Push Button
to change from the user-defined communication
configuration to the default communications mode.
The Channel 0 Default Communications (DCH0) LED
turns on (green, steady) to show when the default
communication configuration is active.
Install the Appropriate EDS Files
If you have RSLinx software, version 2.42 or greater, the most current EDS files
were installed with the software. If you are using an older version of RSLinx
software, you might need to install EDS files. You need EDS files for:
•
1769-L31 controller
•
1769 CompactBus
•
1769 local adapter
All of these EDS files, except for the 1769 CompactBus file, are updated for each
firmware revision. There is also a revision 1 of the controller EDS file that you need
for new controllers. Each controller ships with revision 1 firmware. In order to
update the firmware, you must have this revision 1 EDS file installed:
•
0001000E00410100.eds for the controller
TIP
•
The Default Communication Push Button is recessed.
•
Before pressing the Default Communication Push Button, be
sure to note the present communication configuration for
Channel 0. Pushing the Default Communication Push Button
resets all configured parameters back to their default settings.
To return the channel to its user-configured parameters, you
must enter them manually while online with the controller or
download them as part of an RSLogix 5000 Project file. To
accomplish this online using RSLogix 5000, enter the Controller
Properties screen and use the Serial Port, System Protocol and
User Protocol tabs.