Rockwell Automation Allen-Bradley 1756-EWEB Installation Instructions Manual page 12

12 EtherNet/IP Web Server Module
Removing or Replacing the Module (when applicable)
IMPORTANT
Publication
1756-IN588A-EN-P - February 2004
31277-M
If you are replacing 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.
1
Push on upper and lower module tabs
to disengage them.
31278-M
2
Slide module out of chassis.