Operation at IP Address Duplication
Setting Description Default
Use of duplicated IP ad-
dress
When you set an IP address for the built-in EtherNet/IP port and
find an IP address conflict with another node, select whether to
stop the use of the IP address.
• Stop
If the IP address conflict is not resolved for a certain length of
time, the use of the IP address is stopped, and an IP Address
Duplication Error will occur
.
• Do not stop
*1
You continue to use the IP address and wait until the duplicate
IP address of the other node is changed.
Stop
*1. For systems that use OPC UA to connect to an information system network, it is recommended that you
set this to Do not stop.
Version Information
The setting for the Use of duplicated IP address can be used with the CPU Units that support
OPC UA, and the Sysmac Studio. Refer to the NJ/NX-series CPU Unit OPC UA User
’s Manual
(Cat. No. W588) for information on the models and unit versions of the CPU Units that support
OPC UA, and the Sysmac Studio version.
DNS
Setting Description Default
Use/
Do not use DNS
When you specify a host name for CIP communications instruc-
tions, socket instructions or NTP server settings, select the Use
Option if you use DNS for resolving host name.
A DNS server is required to use DNS.
Do Not Use
Priority DNS server
*1
Set the IP address of the DNS server.
Y
ou can set priority and secondary IP addresses.
None
Secondary DNS server None
Domain name
*1
Set the domain name of the domain to which the built-in Ether-
Net/IP port belongs.
(Single-byte alphanumeric characters, dots, and hyphens: 48
characters max.)
None
*1. These settings are required if you select the Use Option for DNS.
Host Name - IP Address
Setting Description Default
Host name Addresses are converted according to this setting when a host
name is used to specify remote communications nodes.
Host names can be set whether DNS is used or not.
Y
ou can set up to six host names.
(You can use up to 200 single-byte alphanumeric characters,
dots, and hyphens, including up to 63 single-byte alphanumeric
characters between dots.)
None
IP address Set the IP address of the registered host name. None
5 Sysmac Studio Settings for the Built-in EtherNet/IP Port
5-4
NJ/NX-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)