Rockwell Automation 193-ETN E1 Plus EtherNet Side Mount Module User Manual - Manual (Page 19)

Rockwell Automation Publication 193-UM012B-EN-P - June 2011 19
Chapter
3
Configure an E1 Plus EtherNet/IP Module To
Operate on the Network
Introduction This chapter describes how to configure an E1 Plus EtherNet/IP module to
operate on an EtherNet/IP network.
When you first install an E1 Plus EtherNet/IP module, the module is Dynamic
Host Configuration Protocol (DHCP) enabled.
Determining Network
Parameters To operate an EtherNet/IP network, you must define these parameters.
If you use DNS addressing, or reference the module via a host name in an MSG
instruction, then define these parameters.
Table 3 - EtherNet/IP Network Parameters
EtherNet/IP Network Parameter Description
IP address The IP address uniquely identifies the module. The IP address is in the form xxx.xxx.xxx.xxx where
each xxx is a number from 0...255. These are reserved values you cannot use:
• 0.0.0.1...0.255.255.255
• 127.0.0.0...127.255.255.255
• 224.255.255.255...255.255.255.255
Subnet mask Subnet addressing is an extension of the IP address scheme that allows a site to use a single
network ID for multiple physical networks. Routing outside of the site continues by dividing the IP
address into a net ID and a host ID via the class. Inside a site, the subnet mask is used to redivide
the IP address into a custom network ID portion and host ID portion.
If you change the subnet mask of an already-configured module, you must cycle power to
the module for the change to take effect.
Gateway A gateway connects individual physical networks into a system of networks. When a node needs to
communicate with a node on another network, a gateway transfers the data between the two
networks.
Table 4 - EtherNet/IP Network Parameters for DNS Addressing
EtherNet/IP Network Parameter Description
Host name A host name is part of a text address that identifies the module. The full text address of a module is
host_name.domain_name.
Domain name A domain name is part of a text address that identifies the domain in which the module resides. The
full text address of a module is host_name.domain_name. The domain name has a 48-character
limit.
Primary DNS server address This identifies any DNS servers used in the network. You must have a DNS server configured if you
specify an SMTP server with a name. The DNS server converts the domain name or host name to an
IP address that can be used by the network.
For more information on DNS addressing, see page
26 .
Secondary DNS server address