Rockwell Automation 1756-EN2F ControlLogix EtherNet/IP Module Installation Instructions - Manual (Page 18)

18 ControlLogix EtherNet/IP Module
Rockwell Automation Publication 1756-IN606B-EN-P - April 2010
2. Slide the module out of the chassis.
IMPORTANT If you want to replace an existing module with an identical
one, and you want to resume identical system operation, you
must install the new module in the same slot.