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Rockwell Automation Publication 1769-UM021G-EN-P - October 2015
Chapter 4
Complete Software Tasks Required at CompactLogix 5370 Controller Installation
The IP address uniquely identifies the controller. The IP address is in the form
xxx.xxx.xxx.xxx
where each
xxx
is a number from 000
…
254 with some
exceptions for reserved values. These numbers are
examples
of reserved
values
you cannot use:
•
000.
xxx
.
xxx
.
xxx
•
127.
xxx
.
xxx
.
xxx
•
224 to 255.
xxx
.
xxx
.
xxx
Some other values are reserved based on an application-by-application basis.
You can complete one of these tasks dependent on system conditions:
• Set
the IP address for a controller that does not have one assigned.
• Change
the IP address for a controller that has an IP address that is
assigned to it.
IMPORTANT
CompactLogix 5370 controllers have two EtherNet/IP ports to connect to an
EtherNet/IP network. The ports carry the same network traffic as part of the
embedded switch of the controller. However, the controller uses only one IP
address.