Rockwell Automation 1756-OF8H ControlLogix HART Analog I/O Modules - Manual (Page 31)

Rockwell Automation Publication 1756-UM533C-EN-P - February 2011 31
Module Installation Chapter 2
Key the Removable
Terminal Block/Interface
Module Wedge-shaped keying tabs and U-shaped keying bands come with your RTB to
prevent connecting the wrong wires to your module. Key the positions on the
module that correspond to unkeyed positions on the RTB. For example, if you
key the first position on the module, leave the first position on the RTB unkeyed.
1. To key the module, insert the U-shaped band and push the band until it
snaps into place.
2. To key the RTB/IFM, insert the wedge-shaped tab with the rounded edge
first and push the tab until it stops.
You can reposition the tabs to re-key future module applications.
U-shaped
Bands
20850
Wedge-shaped Tab
20851