Yokogawa MX

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Product Overview

The Yokogawa MX driver works in conjunction with KEPServerEX to exchange data between OPC clients and Yokogawa MX100 Data Acquisition devices using TCP/IP. KEPServerEX automatically optimizes data acquisition based on client demand and ensures data integrity through extensive error handling.



  • Stop MX on Shutdown feature tells the device to stop measuring data when the driver shuts down
  • Supports Automatic Tag Database Generation
  • Includes Date and Time formatting options


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

Supported Devices

  • MX100

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 an array buffer was being overrun when a client application requested all data from a device configured with six modules and sixty channels.


  • Added support for MX style 3 Firmware.
  • Added tag address "Unit.Firmware" to display the Firmware version information as a string of four hex octets.
  • Reports unit style and module count information to Event Log.
  • Corrected an issue where error 'FFFF' was erroneously reported on tags when a DNR was reported.


  • Removed tag duplication during automatic tag generation.