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  • SIOTH® Platform
    • Smart IoT Highway
      IT-OT-IIoT IntegrationAugmented AIVisualization & Monitoring
      SIOTH® Related Products
      SIOTH® SCADAMQTT Universal BrokerOPC UA Universal Server
      See it in action
      Download NowWatch Demo Video
  • OPC Products
    • Featured Products
      OPC UA WrapperOPCNet Broker DA HDA AE OPC UA Universal ServerOPC Easy ArchiverOPC UA Proxy
      OPC Servers
      OPC Server for ModbusOPC Server for DatabasesOPC UA Server for DatabasesOPC Server for SNMP OPC UA Server Simulator - Full Edition
      OPC Development Kits
      OPC UA Client ToolkitOPC UA Sever ToolkitOPC .NET Client Toolkit
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  • SIOTH® Platform
    • Smart IoT Highway
      IT-OT-IIoT Integration
      Seamlessly integrate your IT and OT in a secure way
      Augmented AI
      Leverage predictive analytics, ML/AI models combined with logic rules, workflows and fault propagation
      Visualization & Monitoring
      Configure web-based SCADA and dashboards
      SIOTH® Related Products
      SIOTH® SCADA
      Web SCADA enabling monitoring in minutes
      MQTT Universal Broker
      Unify Your OT Data with MQTT
      OPC UA Universal Server
      Unify Your OT Data with OPC UA
      See it in action
      Download Now
      Download your free SIOTH trial and start configuring your data flows
      Watch Demo Video
      Configure the OPC UA Universal Server, built in minutes using SIOTH
  • OPC Products
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      OPC Server for Databases
      OPC UA Server for Databases
      OPC Server for SNMP
      OPC UA Server Simulator - Full Edition
      OPC Development Kits
      OPC UA Client Toolkit
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OPC UA Wrapper

Bridge the Gap Between Legacy OPC and OPC UA Without the Costly Overhaul

Seamlessly connect OPC Classic to OPC UA while cutting costs and boosting security. No infrastructure replacement needed.

OPC UA Wrapper Overview

Why use OPC UA Wrapper?

  • Plug-and-play solution for seamless integration between OPC Classic (DA, HDA, AE) and OPC UA
  • Acts as a secure, bidirectional bridge between legacy and modern OPC systems
  • Enables OPC UA clients to communicate with OPC Classic servers, and vice versa
  • No changes required to existing architectures or applications
opc-architecture
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OPC Components

Core Components of OPC UA Wrapper

Unlock full interoperability between legacy OPC systems and modern OPC UA architecture with two software components designed for bidirectional communication and smooth migration 

OPC UA Wrapper

Seamless bridge between OPC Classic servers and OPC UA clients. Migrate without downtime or system replacement. 

  • Zero downtime migration 
  • Bidirectional communication
  • Auto address mapping 
  • OPC UA Proxy

    A high-performance proxy that allows OPC Classic clients to securely connect to OPC UA servers across networks and firewalls. 

  • Zero downtime migration 
  • Firewall-Friendly Tunneling 
  • SSL/TLS Encryption 
  • OPC UA Wrapper Features

    Scalability and Multi-Server Support

    • Support for multiple wrapper services running simultaneously  
    • Support for multiple local and remote OPC (DA/HDA/AE) servers per service  
    • Support for multiple local and remote OPC UA servers 

    Adress Space Mapping and Data Handling

    • Map any OPC server address space to an OPC UA server address space  
    • Map any OPC UA server address space to an OPC server address space  
    • Reading and writing OPC item data values 
    • Reading historical data  
    • Reading and acknowledging alarms and events 
    • Reading vendor-specific event attributes of OPC AE servers  
    • Support of basic and array data types 

    Security and Authentication

    • Certificate management  
    • Support of UA TCP and HTTP transport protocols  
    • Support of HTTPS transport protocol for the proxy feature  
    • Support of None, Sign, and Sign & Encrypt security modes  
    • Support of None, Basic128RSA15, and Basic 256 security policies  
    • Support of Anonymous and User Name user authentication modes 

    Usability and Configuration

    • Application event logging 
    • OPC UA Proxy alias configuration allowing users to define friendly tag names for nodelds 
    Frequently Asked Questions

    Based on our analysis of 50+ industrial organizations, legacy OPC Classic systems cost 65% more in maintenance, 3x more in security incidents, and 50% slower deployment times. The hidden costs include vendor support fees for obsolete systems, custom integration development costs, security vulnerabilities remediation expenses, and compliance audit preparation time.  



    Migration timelines vary based on the size and complexity of your OPC infrastructure. However, with OPC UA Wrapper, most organizations complete their migration within the same day thanks to wizard-based installation and seamless integration.   


    No. With OPC UA Wrapper, you can modernize your communication layer without shutting down existing systems. The wrapper operates alongside your OPC Classic infrastructure, enabling a smooth transition with zero production downtime.  



    Absolutely. The OPC UA Wrapper is designed to extend the life of your OPC Classic systems by making them accessible to OPC UA clients and vice versa. You can continue using your current servers and applications while gradually adopting OPC UA – no need for a full system replacement.  


    The wrapper supports data encryption, certificate-based authentication, and multiple security modes and policies, including Sign & Encrypt. It enables secure communication across firewalls and helps you meet modern cybersecurity and compliance standards.  

    Resources & Documentation

    OPC UA Wrapper Resources

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    See it in action

    Product Datasheet

    Comprehensive technical specifications and features overview

    Related Blogs

    See the OPC product in action with real-world examples

    User Guide

    Step-by-step installation and configuration guide

    Quick User Guide

    Step-by-step installation and configuration guide

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