Install or remove the module under power – Rockwell Automation 1756-EN2T ControlLogix EtherNet/IP Module Installation Instructions User Manual
Page 17
 
ControlLogix EtherNet/IP Module 17
Rockwell Automation Publication 1756-IN603C-EN-P - April 2010
The alphanumeric display should cycle through these states:
•
TEST
•
PASS
•
OK
•
REV
x.x
where
x.x is the module’s firmware revision.
The display then alternates between OK and the module’s EtherNet/IP address.
Install or Remove the Module Under Power
You can install or remove this module while chassis power is applied.
1. Push on upper and lower module tabs to disengage them.
WARNING: When you insert or remove the module while 
backplane power is on, an electrical arc can occur. This could 
cause an explosion in hazardous location installations. Be sure 
that power is removed or the area is nonhazardous before 
proceeding. Repeated electrical arcing causes excessive wear to 
contacts on both the module and its mating connector. Worn 
contacts may create electrical resistance that can affect module 
operation.