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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
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      OPC UA WrapperOPCNet Broker DA HDA AE OPC UA Universal ServerOPC Easy ArchiverOPC UA Proxy
      OPC Servers
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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
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OPC UA Server for Databases

Turn Relational Databases into a Live OPC UA Data Source

Expose SQL Server, Oracle, MySQL, Access and Wonderware Historian data as standard OPC UA nodes - readable by any SCADA, DCS or HMI

OPC UA Server for Databases Overview

What Is OPC UA Server for Databases?

  • Direct OPC UA access to enterprise and operational databases
  • Native connectivity to SQL Server, Oracle, MySQL, Microsoft Access, and Wonderware Historian
  • Support for any ODBC- or OLEDB-compliant database
  • Secure, standards-based communication via OPC UA
  • Real-time and historical data exposure to SCADA, DCS, HMI, and historian systems
  • Fast deployment with no custom development required
opc-architecture
Download User Guide

OPC UA Server for Databases Features

SQL like Database Connectivity

  • Multi-database support: Connect simultaneously to Microsoft SQL Server, Oracle, MySQL, Microsoft Access, and Wonderware Historian 
  • ODBC/OLEDB compatibility: Integrate with SQL like database supporting standard database drivers 
  • Flexible architecture: Handle multiple database connections into the same OPC UA interface  

Data Access & Management

  • Real-time data access: Read latest database values instantly through OPC UA nodes 
  • Historical data retrieval: Access archived data for trend analysis, reporting, and compliance 
  • Bidirectional communication: Both read and write capabilities for full data synchronization 
  • Table mapping: Graphically configure database tables and columns as OPC UA address space 

Security

  • OPC UA security framework: Built-in encryption, digital signatures, and certificate-based authentication 
  • UA TCP & HTTPS protocols supportUser authentication 
  • Event logging: Track all data access and modifications for traceability requirements 

Configuration & Administration

  • Intuitive graphical interface: Configure servers, databases, and tag mappings without coding 
  • CSV import/export: Bulk manage thousands of OPC tags efficiently 
Frequently Asked Questions

The server natively supports Microsoft SQL Server, Oracle Database, MySQL, Microsoft Access, and Wonderware Historian. It also integrates with any database supporting ODBC or OLEDB drivers, including PostgreSQL, IBM DB2, SAP HANA, and more.

Yes. You can connect to multiple databases at the same time, even if they are different types, and expose them through a single OPC UA address space.

Yes. It works with cloud-hosted databases such as Azure SQL Database, Amazon RDS, Oracle Cloud, and Google Cloud SQL, supporting both on-premises and hybrid deployments.

The server supports full bidirectional communication. You can configure OPC UA tags as read-only, write-only, or read-write depending on your use case.

ODBC provides basic database access but lacks OPC UA features such as standardized data modeling, subscription-based updates, built-in security, and native SCADA/HMI compatibility. This solution combines ODBC flexibility with OPC UA industrial capabilities.

It leverages OPC UA’s security framework, including certificate-based authentication, encryption, message signing, role-based access control, and detailed audit logging.

The server maintains OPC UA connectivity, marks affected tags with proper quality status, and can optionally buffer write operations until the database connection is restored.

Most deployments are completed within hours. Simple setups can be operational in under 30 minutes, while more complex multi-database environments typically take 1 to 2 days.

Resources & Documentation

OPC UA Server for Databases Resources

Product Datasheet

Comprehensive technical specifications and features overview

User Guide

Step-by-step installation and configuration guide

Related Blogs

See the OPC product in action with real-world examples

Demo Video

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