Rockwell Automation 1768-EWEB EtherNet/IP Web Server Module User Manual - Manual (Page 43)

Publication ENET-UM527E-EN-P - October 2006
Configure a Network Address For a Web Server Module 43
Your network administrator should be able to assign a host
name. Valid host names should be IEC-1131-3 compliant.
2. Configure the module parameters.
In addition to the IP address, subnet mask, and gateway address,
you must also configure a host name for the module, domain
name, and primary/secondary DNS server addresses. In the DNS
server, the host name must match the IP address of the module.
3. In RSLogix 5000 software, add the module to the I/O
configuration tree and enter the host name in the General tab of
the module.
If a child module resides in the same domain as its parent
module, just enter the host name. If the child module is in a
different domain that its parent module, you must enter the host
name and the domain name (host.domain)
You can also use DNS addressing in a module profile in the I/O
controller tree or in a message path. If the domain name of the
destination module is different from the source module, use a
fully-qualified DNS name (hostname.domainname). For example, to
send a message from ENBT1.location1.companyA to
ENTB1.location2.companyA, the host names are the same, but the
domains are different.
If you do not enter a fully-qualified DNS name, the module appends
the default domain name to the specified host name.
IMPORTANT
Make sure the DNS enable bit is set.
If you configure your module using RSLinx software, version
2.41.00 or later, the enable bit is cleared and DNS addressing
will not work. If you configure your module using the Port
Configuration tab in RSLogix 5000 software, the enable bit is
set, so DNS addressing should work.