Omron CPU Unit CJ2 Manual page 6

Networks Are More Open
EtherNet/IP is an open network that uses the TCP/IP protocol on EtherNet networks, which are widely used
in offi ces and factories throughout the world. The CJ2 CPU Units support EtherNet/IP as a standard feature.
Because EtherNet/IP uses TCP/IP, it provides the many advantages of EtherNet technology.
Universal EtherNet and FA Data Links Can Be Used at the Same Time.
With EtherNet/IP, One Port Is Enough.
FTP Communications, Data Links, and Support Software Can Be Used Simultaneously through
a Single Port.
The CJ2 CPU Units provide as standard equipment a multifunctional EtherNet port that supports EtherNet/
IP. There is no need to add an EtherNet Unit, because universal EtherNet communications, such as data links
between PAC's, message communications between PAC's, and FTP transfers, are all enabled simultaneously
through this one port while Support Software is connected.
EtherNet/IP
CX-One
Create a Seamless Data Flow in a Single Network System.
Because it is based on the world-standard CIP open protocol, a seamless data fl ow can be achieved between
control lines and information monitoring lines in a single network system. From here on, EtherNet/IP will be
increasingly used in multi-vendor environments (such as robotics and safety devices).
Application
Layer
Transport
Layer
Network
Layer
Data Link
Physical Layer
6
Programmable Terminal
HUB
Message
communications
CJ2 CPU
EtherNet/IP is an industrial network that uses the CIP real-time protocol in the EtherNet
application layer. (Standards: EN 50170 and IEC 61158)
FTP HTTP
TCP
Explicit
Messages
OSPF
IGRP
ARP
Data links
CJ2 CPU
SMTP CIP SNMP
UDP
ICMP IGMP
IP
IEEE 802.3 EtherNet
Host application
Data links
CJ1-EtherNet/IP Unit
FINS
Real-time Data
Links
RARP
NEW