Omron SYSMAC CJ1W-EIP21, Operation Manuals

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4 Determining IP Addresses
4-4
CJ-series EtherNet/IP Units Operation Manual for NJ-series CPU Unit (W495)
4-2 Setting the IP Address of the
EtherNet/IP Unit
Use one of the following methods to set the IP address of the EtherNet/IP Unit.

Setting a User-specified IP Address
If you need to change the default IP address of the EtherNet/IP Unit or if you need to use the Ether-
Net/IP Unit with another EtherNet/IP node, set the IP address to the required value.

Automatically Obtaining the IP Address from the BOOTP Server
There are two methods to automatically obtain an IP address.
• Obtain the IP address from the BOOTP server each time the power is turned ON.
• Obtain the IP address from the BOOTP server once when the power is turned ON and then do not
allow it to change.
4-2-1 Determining IP Addresses
BOOTP client
BOOTP command
BOOTP server
NJ-series Controller NJ-series Controller
IP address
EtherNet/IP Unit
Ethernet