Cutler-Hammer ELC Ethernet

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Product Overview

The Cutler-Hammer ELC Ethernet driver for KEPServerEX provides an easy and reliable way to connect to Cutler-Hammer and Eaton Logic Controllers (ELC) to your OPC client applications, including HMI, SCADA, Historian, MES, ERP, and countless custom applications.



  • Maximum Number of Channels: 256
  • Maximum Number of Devices: 8192
  • Cutler-Hammer address naming convention
  • Addressing Support for Discrete Inputs, Discrete Outputs, Main Relay, Timer Status, Step Point, Timer Current Value, Counter Current Value, Data Register, and String Support
  • 4 Cutler-Hammer specific error messaging
  • Configurable Block Reads
  • First Word Lo/Hi option for 32 bit data types


  • Cutler-Hammer ELC Modbus

Supported Devices

  • Any ELC Series Controller
  • ELC-PA
  • ELC-PB
  • ELC-PC
  • ELC-PV

Available Languages

  • English

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


  • Fixed issue with write-only tags introduced in 5.0. The value of the tag was not updating when a value was written to it. The correct value was written to the device, just not displayed in the data client.

What Is a Driver?

KEPServerEX is more than an OPC server—it's a connectivity platform for industrial automation and IoT. Simply download KEPServerEX, and then select from Kepware's library of more than 150 device drivers, client drivers, and advanced plug-ins to fit the communication requirements unique to your industrial control system.

A driver is a software component that enables KEPServerEX to meet the connectivity requirements of a specific device, system, or other data source. The driver handles all proprietary communications to the data source for KEPServerEX; the client interfaces handle all supported OPC, proprietary, and open standards connectivity to applications that monitor or control the devices.

Drivers may be licensed individually or in suites. Additional drivers can be licensed on demand as connectivity needs evolve.