Contrex Serial

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Product Overview

The Contrex Serial device driver works in conjunction with KEPServerEX to provide data exchange between OPC clients and Contrex CX1000 motion controllers. KEPServerEX automatically optimizes your data acquisition based on client demand. Data integrity is ensured with our extensive error handling.



  • Multi-drop RS-485 communications
  • Supports Ethernet Encapsulation
  • MP-Monitor Parameters
  • CP-Control Parameters
  • EU-Custom Engineering Units
  • CL-Control Commands
  • CT-Constant Data Table
  • Constant Data Supported
  • Field Length
  • Control Commands Supported
  • Modem Support
    • Automatic Dial Configuration
    • Multiple Phone Number Management


  • CX-Series Serial Communications Binary Data-Link Protocol

Supported Devices

  • CX-1000 series - using Binary Data-Link Protocol

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


  • Fixed an issue with broadcast mode (Device ID of 0) wherein Write tags were not being released properly.