Omron CJ2-CPU User Manual

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2 Features and System Configuration
NX-series EtherNet/IP Coupler Unit User’s Manual (W536)
2-1 Features of EtherNet/IP Slave Terminals
2
 Registering NX Units in the Unit Configuration Information as Unmounted
Units for Future Expansion (Designing, Commissioning, and Modularity)
You can register any NX Units as unmounted Units in the Unit configuration information. This allows
the following possibilities.
• NX Units for future expansion can be registered in advance. This eliminates the need to change
the user program when the NX Units are actually added. (Designing)
• If certain NX Units are temporarily unavailable, you can still debug the system in advance with the
NX Units that are available. (Commissioning)
• Even if the number of NX Units changes depending on the type of equipment, the user program
does not have to be changed. (Designing and Modularity)
 Exporting/importing NX Unit Settings (Designing)
You can use the Support Software to export and import the NX Unit settings as files. This allows you
to reuse settings from NX Units for other EtherNet/IP Slave Terminals or NX Units.
 Simplified I/O Wiring with Screwless Clamping Terminal Blocks (Commis-
sioning)
The EtherNet/IP Coupler Unit and the NX Units use screwless clamping terminal blocks. The use of
ferrules makes wiring an easy matter of inserting them. The screwless design greatly reduces wiring
work.
Fail-soft operation is provided so that the EtherNet/IP Coupler Unit can start or continue I/O refresh-
ing only with the NX Units that can operate normally when an error occurs for the EtherNet/IP Slave
Terminal.
You can use fail-soft operation in the following cases.
• When it is dangerous to stop the entire EtherNet/IP Slave Terminal all at once
• To continue the operation of the EtherNet/IP Slave Terminal until the system can be stopped
safely through the user program or user operation
• To not stop all devices, i.e., to continue operation for only some devices
The EtherNet/IP Coupler Unit supports a TCP/UDP message service. Message services can be used
to send/receive data between general-purpose applications and Slave Terminals with this interface. You
can use these communications services to send and receive any data to and from remote nodes, i.e.,
between host computers and Slave Terminals.
Refer to A-2 TCP/UDP Message Service on page A-34 for more information.
 Easy Setup of a Stand-alone Safety Control System
The EtherNet/IP Coupler Unit enables you to build a modular stand-alone safety control system that
uses the NX-series Safety Control Units.
Features That Reduce Equipment Design Work and Commissioning
Work, and Encourage Modular Equipment Design
Fail-soft Operation
TCP/UDP Message Service
Connection with NX-series Safety Control Units

Omron CJ2-CPU Specifications

General

Brand	Omron
Model	CJ2-CPU
Category	Controller
Language	English