Omron CJ2-CPU User Manual

1 EtherNet/IP Networks
1 - 6
NX-series EtherNet/IP Coupler Unit User’s Manual (W536)
This section introduces the configuration devices.
The EtherNet/IP master monitors the status of the connections with EtherNet/IP slaves and exchanges
I/O data with EtherNet/IP slaves through the EtherNet/IP network. The OMRON EtherNet/IP masters
include EtherNet/IP Units, such as the CJ1W-EIP21 and CS1W-EIP21, as well as EtherNet/IP ports
built into CPU Units. Furthermore, you can use an EtherNet/IP master from another manufacturer. An
EtherNet/IP master from another manufacturer is referred to as a master from another manufacturer.
The EtherNet/IP slaves output the data that is received from the EtherNet/IP master through the Ether-
Net/IP network to connected external devices. They also send data that is input from connected exter-
nal devices to the EtherNet/IP master through the EtherNet/IP network.
An EtherNet/IP Slave Terminal is a building-block EtherNet/IP slave that is created by mounting a group
of NX Units to an EtherNet/IP Coupler Unit.
 EtherNet/IP Coupler Unit
An EtherNet/IP Coupler Unit is a Communications Coupler Unit that connects NX Units to an Ether-
Net/IP network.
 NX Units
The NX I/O Units perform I/O refresh communications with the EtherNet/IP master through the Eth-
erNet/IP Coupler Unit.
Refer to Section 2 Features and System Configuration for details on the features and system configura-
tion of an EtherNet/IP Slave Terminal.
A relay device that connects multiple nodes in a star-shaped LAN.
This cable is used to connect the built-in EtherNet/IP port or EtherNet/IP Unit to an Ethernet switch.
Use an STP (shielded twisted-pair) cable of category 5 (100BASE-TX) or higher.
The files contain information that is unique to the EtherNet/IP slaves.
You can load the EDS files into the Support Software to set up connections with the slaves, edit param-
eters in the slaves, and easily make other settings.
1-2-2 Introduction to Configuration Devices
EtherNet/IP Master
EtherNet/IP Slaves
EtherNet/IP Slave Terminals
Ethernet Switch
Communications Cables
EDS (Electronic Data Sheet) Files

Omron CJ2-CPU Specifications

General

Brand	Omron
Model	CJ2-CPU
Category	Controller
Language	English