Honeywell UDC Ethernet

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Product Overview

The Honeywell UDC Ethernet device driver was designed specifically for use with OPC server products and the Windows XP/2000/NT operating systems running on Intel microprocessor based computers. It is intended for use with Honeywell UDC Ethernet controllers.



  • Supports Ethernet Encapsulation
  • Multi-drop Supported
  • Full Address Range Support (0 - 65535)
  • Hex Addressing Support (0-FFFF)
  • User Definable Read Block Sizes
  • Adjustable Address Base (0 or 1)
  • Word Order Swapping for Floating Point and Longs
  • Adjustable RTS Flow timing for Radio Modems
  • Supports all memory types and data types including Loop Configuration Memory
  • Modem Support
    • Automatic Dial Configuration
    • Multiple Phone Number Management


  • Honeywell UDC Modbus Ethernet

Supported Devices

  • Honeywell UDC 2500
  • Honeywell UDC 3200
  • Honeywell UDC 3500

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 an issue where the driver would respond with an error because it was it attempting to read coils on a UDC2500 model that supported less than 8 coils.