Yokogawa DX Serial

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Product Overview

The Yokogawa DX Serial driver works with KEPServerEX to exchange data between OPC clients and Yokogawa DX 100/200 Data Acquisition systems using either RS-232 or RS-422/485 serial communications. This driver has been optimized for serial communications with DX data sets. Modem operation is fully supported.  KEPServerEX ensures data integrity through extensive error handling.



  • Supports Automatic Tag Database Generation
  • Provides access to all system parameters
  • Modem Support
    • Automatic dial configuration
    • Multiple phone number management


  • Yokogawa Data Acquisition Protocols (CX, DX, DXP, MW, MP, HR, Darwin)

Supported Devices

  • AX100
  • DX102
  • DX104
  • DX106
  • DX112
  • DX204
  • DX208
  • DX210
  • DX220
  • DX230
  • MV100
  • MV200

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


  • Resolved an issue where deadlock could occur after multiple user-driven Automatic Tag Generation attempts were triggered from the Server Configuration's Device Properties.


  • Removed tag duplication during automatic tag generation.
  • This driver makes use of binary data formatting when reading information from Yokogawa devices. This requires a data bit setting of 8.
  • Software handshaking is not available.