Rockwell Automation 592- E300 Overload Relay User Manual - Manual (Page 287)

Rockwell Automation Publication 193-UM015B-EN-P - June 2014 287
EtherNet/IP Communications Chapter 8
5. Enable the Web Server Control and press Apply Changes
Duplicate IP Address
Detection When you change the IP address or connect the module to an EtherNet/IP
network, the module checks to make sure that the IP address assigned to this
module does not match the address of any other network device. If the module
determines that another device on the network with a matching IP address, the
EtherNet/IP port of the module goes into conflict mode where the Network
Status LED indicator is solid red.
To resolve this conflict, use the instructions below to change the IP address of the
module. Then, cycle power to the module or reset the modules by disconnecting
and then reconnecting the Ethernet cable.
Two modules could possibly detect a conflict simultaneously. If this occurs,
perform this procedure.
1. Remove the module with the incorrect IP address and correct its conflict.
2. Cycle power or disconnect the Ethernet cable from the second module and
reconnect it.
Behavior of Modules With Duplicate IP Addresses
Devices in conflict over an IP address behave differently depending on whether
connections have been established to either of the modules and whether both
modules support duplicate IP address detection.