Rockwell Automation 1756-CNB ControlLogix ControlNet Bridge Module Installation Instructions User Manual
Page 19
 
19
Publication 1756-IN571B-EN-P - April 2001
3. Apply power to the module and check module status. Use the
following flowchart as a guide.
Turn the chassis 
power supply on.
Module 
status 
indicator 
red?
See the 
troubleshooting 
table on page 23.
Module performs a 
power-on self-test 
initialization.
No
Yes
INIT
No
Yes
Module 
status 
indicator 
red?
INIT has failed, and 
the module displays 
an error message 
(see pages 23 - 26).
Replace the module.
OR
WAIT
RM
Modules are in a 
redundant control 
chassis pair.
Initialization is 
complete. The 
status indicator 
blinks green.
Channel A and B 
indicators alternately 
flash.
Channel A and B 
indicators display the 
network condition as 
listed on page 26.
Module 
status 
displays 
OK?
No
See the 
troubleshooting table 
beginning on page 23.
Yes
Module is functional 
and operating.
OK
A#xx