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.