12 Rockwell Automation Publication 1794-UM066C-EN-E - April 2023
Chapter 2 Install Your FLEX I/O Adapter
Mount Your Adapter on a
DIN Rail
Follow these steps to mount the adapter on a new system before installing any I/O modules.
1. Position the adapter (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 pivot the adapter onto
the rail.
3. Press the adapter 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 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 in place. If necessary, push up on the locking tab to lock.
5. Connect the adapter wiring as shown in Connect Wiring
on page 13.
Mount on a Panel or Wall
If mounting this adapter to a panel or wall, see publication 1794-TD013, 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.
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 while power is applied.
Interruption of the backplane can result in unintentional operation or machine
motion.
ATTENTION: If you insert or remove the module while backplane power is on, an
electric 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
that is applied to the adapter or any device on the network, an electric 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.
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