Rockwell Automation 1734-AENT Point I/O Ethernet Adapter Installation Instructions User Manual
Page 9
 
POINT I/O EtherNet/IP Adapter 9
Publication
1734-IN590B-EN-P - February 2005
subnet mask is 255.255.255.0 and the gateway address is set to 
0.0.0.0. The adapter does not have a host name assigned, or use any 
Domain Name System when using the thumbwheel settings.
If you set the switches to an invalid number (i.e. 000 or a value 
greater than 254), the adapter checks to see if you enabled DHCP, 
according to the following table. 
Refer to publication 1734-UM011, POINT I/O EtherNet/IP Adapter 
User Manual, for more information.
Install a Replacement EtherNet/IP Adapter to an Existing System
1. Remove the existing adapter from the DIN rail as follows:
a. Disconnect the EtherNet connector from the adapter.
b. Pull up on the RTB removal handle to remove the terminal
block.
c. Remove the adjacent module from its base.
d. Use a small bladed screwdriver to rotate the DIN rail
locking screw to a vertical position. This releases the 
locking mechanism.
e. Lift straight up to remove.
If DHCP is
Then the adapter
Enabled
Asks for an address from a DHCP server. The 
DHCP server also assigns other Transport 
Control Protocol (TCP) parameters.
Not enabled
Uses the IP address (along with other TCP 
configurable parameters) stored in nonvolatile 
memory
ATTENTION
You must use Series C POINT I/O modules with the 
1734-AENT adapter. Series A or B POINT I/O 
modules do not work with this adapter.