Mitsubishi Serial

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Product Overview

The Mitsubishi Serial device driver works in conjunction with KEPServerEX to provide data exchange between OPC clients and Mitsubishi Serial PLCs connected via the AJ71C24 or QJ71C24N communications cards. KEPServerEX automatically optimizes your data acquisition based on client demand. Data integrity is ensured with our extensive error handling.



  • Ethernet Encapsulation
  • RS-232, RS-422 Multi-drop Supported
  • All Serial and A Series PLCs
  • Memory Types Supported: X, Y, M, S, B, L, F, TS, TC, TN, CS, CT, CN, D, W, R
  • All data types are supported
  • Modem Support
    • Automatic Dial Configuration
    • Multiple Phone Number Management


  • Mitsubishi Format 1

Supported Devices

  • A171SHCPUN
  • A172B
  • A172SENC
  • A172SHCPUN
  • A173UHCPU(-S1)
  • A175B
  • A178B
  • A178B-S1/S2/S3
  • A272B
  • A273EX
  • A273UHCPU
  • A273UHCPU-S3
  • A275B
  • A278B
  • A278LX
  • A61PEU
  • A61P-UL
  • A62PEU
  • All Q Series PLCs

Available Languages

  • English
  • Japanese
  • Simplified Chinese

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



  • Added Chinese language support.



  • Added Japanese language support.



Fixed the address validation failures that resulted from leading zeroes.

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.