Follow these steps, Terminology, Follow these steps terminology – Rockwell Automation 1768-L43 CompactLogix System Quick Start User Manual
Page 88: Ethernet networks use these types of addresses
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Publication IASIMP-QS003B-EN-P - October 2009
Chapter 7 Configure the EtherNet/IP Network
Follow These Steps
If you have an EtherNet/IP network, complete these steps.
Terminology
Ethernet networks use these types of addresses.
Term
Definition
Ethernet address
Each Ethernet device has a unique Ethernet address, sometimes called a MAC address. The address is
usually on a label on the device itself. You use the Ethernet address to identify a device so you can assign it
an IP address.
The address has twelve digits separated by colons, xx:xx:xx:xx:xx:xx. Each digit in the address is a
hexadecimal number from 0 to 9, or A to F. No other device will have the same address, and it can not be
changed by the user.
IP address
The IP address identifies a node on an Ethernet network. You can manually set the IP address or you can
use special software to automatically assign it.
An IP address consists of four decimal integers separated by periods, xxx.xxx.xxx.xxx. Each xxx is a decimal value from
0…255. An example IP address is 192.168.0.1. The selection of IP addresses is beyond the scope of this quick start.
Contact your network administrator or use the ones provided in the examples.
Once you set an IP address for a device, you generally reference the device by its IP address. The examples in this
quick start use IP addresses to define communication paths to the devices.