Rockwell Automation 1756-XXXX ControlLogix Analog I/O Modules - Manual (Page 188)

188 Publication 1756-UM009C-EN-P - December 2010
Chapter 9 Install ControlLogix I/O Modules
2. Slide the module into the chassis until the module locking tab clicks.
Key the Removable
Terminal Block Key the RTB to prevent inadvertently connecting the incorrect RTB to
your module. When the RTB mounts onto the module, keying positions will
match up.
For example, if you place a U-shaped keying band in slot 4 on the module, you
cannot place a wedge-shaped tab in slow 4 on the RTB or your RTB will not
mount on the module. We recommend that you use a unique keying pattern
for each slot in the chassis.
1. Insert the U-shaped band with the long side near the terminals.
2. Push the band onto the module until it snaps into place.
3. Key the RTB in positions that correspond to unkeyed module positions.
Insert the wedge-shaped tab on the RTB with the rounded edge first.
Push the tab onto the RTB until it stops.
Locking tab
20862-M
U-shaped
keying band
20850-M