Yaskawa Memobus Plus

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Product Overview

The Yaskawa Memobus Plus driver works in conjunction with KEPServerEX to exchange data between OPC clients and Memobus Plus protocol-compliant Yaskawa PLCs. It utilizes the device driver set available from Modicon.

Our implementation of Memobus Plus supports master and slave paths simultaneously. The slave mode allows the server to receive data by exception from other Memobus Plus devices. KEPServerEX automatically optimizes data acquisition based on client demand and ensures data integrity through extensive error handling.



  • Supports up to four SA85 cards in one PC
  • Supports Memory Accesses to 65535
  • Supports 0xxxx - Output Coils, 1xxxx - Input Coils, 3xxxx - Internal Registers, and 4xxxx - Holding Registers
  • Supports access to Constant Registers, Link Registers, Link Coils, and all Motion Control parameters
  • Supports all data types and arrays


  • Memobus Plus

Supported Devices

  • SA85-001 - Requires the Modicon MBPLUS.SYS driver for Windows NT
  • SA85-002 - Requires the Modicon MBPLUS.SYS driver for Windows NT
  • SA85-PCI - Requires the Modicon MBPLUS.SYS driver for Windows NT

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