Install your adapter module, Mount on a din rail, Mount on a panel or wall – Rockwell Automation 1794-AENTR_AENTRXT FLEX I/O Dual Port EtherNet/IP Adapter Module Installation Instructions User Manual
Page 3: Mount or replace the adapter on an existing system
 
FLEX I/O
™
Dual Port EtherNet/IP Adapter Modules 3
Publication 1794-IN131A-EN-P - January 2012
Dual Port EtherNet/IP Adapter – 1794-AENTR, 1794-AENTRXT
Install Your Adapter Module
Mount on a DIN Rail
1.
Position the adapter module (A) on an IEC standard (35 x 7.5 x 1 mm) 
top-hat DIN rail (B) at a slight angle (DIN rail: Allen-Bradley part 
number 199-DR1; 46277-3; EN50022).
2.
Hook the lip on the rear of the adapter onto the top of the DIN rail, and 
rotate the adapter module onto the rail.
3.
Press the adapter module down onto the DIN rail until flush. Locking 
tab (C) snaps the adapter into position and locks it onto the DIN rail.
4.
If the adapter module does not lock in place, use a screwdriver or similar 
device to move the locking tab down while pressing the adapter module 
flush onto the DIN rail, and release the locking tab to lock the adapter 
module in place. If necessary, push up on the locking tab to lock.
5.
Connect the adapter wiring as shown in the Connect Wiring diagram.
Mount on a Panel or Wall
If mounting this adapter to a panel or wall, refer to publication
,
Panel Mounting Kit, Cat. No. 1794-NM1.
Mount or Replace the Adapter on an Existing System
1.
Disconnect any wiring jumpered to the adjacent terminal base.
2.
Remove the Ethernet connectors from the bottom of the adapter
.
3.
Disconnect any user power wiring connections to the adapter.
4.
Open the module latching mechanism and remove the module from the 
base unit to which the adapter will be attached.
5.
Push the FlexBus connector toward the right side of the terminal base to 
unplug the backplane connection.
6.
Release the locking tab and remove the adapter module.
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 the adapter tight together, reducing the 
possibility of a break in communication over the backplane.
7.
Complete the adapter mounting as shown below.
Push down and in at the same time to lock the adapter to the DIN rail.
If the adapter does not lock in place, use a screwdriver or similar device 
to move the locking tab down while pressing the adapter flush onto the 
DIN rail, and release the locking tab to lock the adapter module in place. 
If necessary, push up on the locking tab to lock.
Component Identification
1
Dual Port EtherNet/IP adapter
6
Module locking tab
2
FlexBus connector
7
Network cable RJ45 connectors 
(underside)
3
24V common connections
8
MAC ID label
4
24V DC connections
9
Status indicators
5
IP address switches
ATTENTION
During mounting of all devices, be sure that all debris (for example, 
metal chips, wire strands) is kept from falling into the module. Debris 
that falls into the module could cause damage on power up.
ATTENTION
Do not remove or replace an Adapter Module while power is 
applied. Interruption of the backplane can result in unintentional 
operation or machine motion.
1
9
8
7
5
6
3
2
45821
4
45822
A
B
C
WARNING
If you insert or remove the module while backplane 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.
WARNING
When used in a Class I, Division 2, hazardous location, this 
equipment must be mounted in a suitable enclosure with proper 
wiring method that complies with the governing electrical codes.
WARNING
If you connect or disconnect the communication cable with power 
applied to the adapter or any device on the network, 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.
ATTENTION
Make certain 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.