NOE Module Configuration and Hot Standby
Original instructions
TCP/IP Configuration
When the NOE module goes into service the first time, it attempts to get its IP address from a BOOTP server. If a BOOTP server is not available, the NOE module derives its IP address from its MAC address. Connecting to a BOOTP server or deriving the IP address from a MAC address gives you a connection to the NOE, and you can then download a project to the PLC.
All standard rules apply to IP addressing with the additional restriction that the IP address cannot be greater than 253 or broadcast address minus 2. Also, no other device can be assigned the configured IP + 1 address.