Omron NJ Ethernet

Manufacturing Suite

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Omron Suite

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Product Overview

The Omron NJ Ethernet driver manages communications between OPC clients and Omron Sysmac NJ EtherNet/IP PLCs via the EtherNet/IP protocol. It also supports Common Industrial Protocol (CIP) routing to access additional PLCs via EtherNet/IP without requiring the use of CX-Compolet. Kepware automatically optimizes data acquisition based on client demand and ensures data integrity through extensive error handling.


  • Supports EtherNet/IP over TCP/IP
  • Supports Common Industrial Protocol (CIP) routing from one Omron NJ device to another. Features a CIP-configurable packet size from 500 bytes to 1996 bytes per packet.
  • Supports symbolic addressing of basic data types and structures. Supported data types include the following: BOOL, SINT, USINT, INT, UINT, DINT, UDINT, LINT, ULINT, REAL, LREAL, and String.
  • Supports read blocking and multi-servicing of writes to arrays to optimize performance when reading and writing to multiple items within an array
  • Supports Client Arrays for referencing contiguous array elements by the client
  • Supports Automatic Tag Generation, featuring direct interrogation of the controller and the ability to map structured data on the controllers into multi-level tag groups
  • Supports the reading of system variables defined on the controller
  • Communicates directly with Omron Sysmac NJ devices over EtherNet/IP without any dependency on third-party products (such as Sysmac Gateway and CX-Compolet)


  • EtherNet/IP

Supported Devices

  • CJ1W-EIP21
  • Omron NJ301
  • Omron NJ501
  • Omron NX Series

Available Languages

  • English
  • Japanese
  • Simplified Chinese

Application Support

  • DDE Format CF_Text and AdvancedDDE
  • NIO Interface for iFIX
  • OPC .NET Service (OPC .NET) Version 1.00
  • OPC Alarms and Events (OPC AE) Version 1.10
  • OPC Data Access (OPC DA) Versions 1.0a, 2.0, 2.05a, and 3.0
  • OPC Unified Architecture (OPC UA) Clients
  • SuiteLink and FastDDE for Wonderware


Release Notes

Access and search all Kepware product release notes here.

Additional Tech Info

Supported Device Details

  • CJ1W-EIP21 supports routing through the CJ1W-EIP21 module to supported Omron Sysmac NJ devices.

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