Industrial Automation
Industrial Automation | Europe


Main > Product Type > Automation Systems > PLCs
Minimize Text   Default    Enlarge Text


Ethernet/IP Communication with the CP1L/CP1H PLC

To explain the general functionality and provide additional information for the CP1W-EIP61 adapter when mounted in compatible PLC's.
The CP1W-EIP61 is an EtherNet/IP adapter that allows intelligent devices, such as Omron CJ / CS series PLCs or NSJ hybrid controllers with EtherNet/IP modules to very quickly and easily share data with CP1L and CP1H PLCs.
The basic features of the CP1W-EIP61 are:
  • CP1L/CP1H as a Programmable I/O Module
The CP1L/CP1H PLC can function as a programmable I/O module capable of running a local program or act as a node in an EtherNet/IP network to exchange data such as positioning or I/O status with a CS/CJ-series controller.
  • Programming and FINS

The CP1W-EIP61 supports programming and FINS messaging.

  • PLC Support

The adapter mounts in an Option Board Slot on the front of a CP1L/H PLC, and can be used in all CP1L/H PLCs with an available Option Board Slot. The CP1W-EIP61 is not supported by the CP1E PLC.

  • Normal Mode

The CP1W-EIP61 adapter allows other PLCs to connect to an Omron CP1L/H PLC and share up to 100 words of data in each direction with the originator PLC. Assemblies are provided to produce and consume 20 bytes (10 words), 40 bytes (20 words) 100 bytes (50 words) or 200 bytes (100 words) of PLC data. 

  • I/O Block Mode

Special assemblies (Input_120 and Output_121) have been provided to allow the originator PLC to directly read the inputs and directly control the outputs of the CP1L/H. The maximum I/O configuration of a CP1L/H can be used, and the I/O is mapped directly over EtherNet/IP without the need of programming or additional configuration of the CP1L/H PLC. In this case, the CP1L/H PLC functions as an I/O block.

Additional Notes

The provided assemblies map specific I/O areas for produced and consumed words in the Originator and CP1 PLCs. See the table below for details.


NOTE: Using the software Network Configurator for EtherNetIP, the Name Field of the Edit Tags dialog box represents the Originator PLC's (e.g. CJ2M-CPU33) I/O memory address or network symbol for produced and consumed locations (e.g., 100, W100, D0, Input_Signal). Additionally, The H, W, D, and E characters can also be input in lower case as h, w, d, and e. Directly enter the CPU Unit's I/O memory address (e.g., 100, W100 , D0) or a network symbol as a character string. Addresses in the following I/O memory areas can be set.

CPU Unit's Data Area CPU Unit's Data Area Address
CIO Area 0000-6143
HR Area H000 to H511
WR Area W000 to W511
DM Area D00000 to D32767
EM Area E0_00000 to E18_32767 (available EM Banks depend on CPU type)


Examples for allocated memory areas are shown below for various assembly types using the Watch Window from CX-Programmer to illustrate the data exchange over EtherNet/IP.

(Assembly Input_100 and Output_101)


(Assembly Input_120 and Output_121)


Mode Selection

The mode (Normal Mode or I/O Block Mode) of the CP1W-EIP61 unit is configured by selecting the appropriate assembly shown above. The originator configuration determines the operating mode of the CP1W-EIP61.

Compatible PLCs


*NOTE: Compatible only when an option port is available.

See the attached manual Grid Connect EtherNet/IP Adapter Application and Setup Guide (CP1W-EIP61_Manual.pdf) for more detail on operation, application and configuration.
See the attached Configuration_Example_Normal_Mode.nvf file (Network Configurator for EtherNetIP software) for the configuration example detailed in the attached manual.
See the attached Configuration_Example_Block_Mode.nvf file (Network Configurator for EtherNetIP software) for a configuration example for an I/O Block Mode application.
Download the attached zip file for the latest EDS information required for configuring the CP1W-EIP61 unit. 

This article is intended to supplement official Omron documentation. The provided configurations should be thoroughly tested before implementation and may or may not function in specific applications. The user assumes full responsibility of the configuration, integration, performance and application of the provided configurations. For detailed information on the use and general configuration of Omron products, refer to official Omron manuals or contact your local Omron support representative.

All information contained in this document is current as of April 2012 but is subject to change due to product and/or software improvements.



CP1W-EIP61_Manual.pdf - Size: 1585115

Comments (View All Comments / Add Comment)

Related Articles
No related articles found.
Created 2012-06-07
Modified 2013-11-22
Views 29935


You are not logged in.