Rockwell Automation 1794-ASB/E Remote I/O Adapter Module User Manual - Manual (Page 22)

2–4 Installing Your Remote I/O Adapter Module
Publication 1794ĆUM009D-EN-P - April 2004
Mounting (or Replacing) the Adapter on an Existing System
ATTENTION
!
If you connect or disconnect wiring while the field
side 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.
1. Remove the RIO plug-in connector from the front of the adapter.
2. Disconnect any wiring connected to the adjacent terminal base.
3. Using a screwdriver or similar tool, open the lock and remove the
module from the base unit to which the adapter will be attached.
4. Push the flexbus connector toward the right side of the terminal
base to unplug the backplane connection.
ATTENTION
!
Make certain that the flexbus connector is
completely clear of the adapter. The slide must be
completely to the right and the raised spot on the
slide visible.
5. Release the locking tab and remove the adapter.
6. Before installing the new adapter, notice the notch on the right
rear of the adapter. This notch accepts the hook on the terminal
base unit. The notch is open at the bottom. The hook and adjacent
connection point keep the terminal base and adapter tight
together, reducing the possibility of a break in communication
over the backplane.
ATTENTION
!
Make certain that the hook on the terminal base is
properly hooked into the adapter. Failure to lock
the hook into the adjacent base/adapter can result
in loss of communication on the backplane.
7. Place the adapter next to the terminal base unit and push down to
mate the hook into slot.