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.

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.