Do you need a reliable way to store OPC UA data in a standard database for historical analysis, reporting, or integration with analytics tools? Many industrial environments require long-term data storage from multiple OPC UA servers – whether for compliance, trend analysis, or dashboarding.
In this article, we explain how to store OPC UA data in SQL or CSV formats using OPC Easy Archiver and OPC UA Proxy , providing a flexible, scalable, and secure data archiving solution.
Why Store OPC UA Data in a Database?
OPC UA (Unified Architecture) is widely used across industrial automation for data access, alarm/events, and historical data. However:
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Real-time data is transient
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Long-term insights require persistent storage
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Trend analysis, reporting, and machine learning require database access
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Dashboards and BI tools depend on structured data
Storing OPC UA values in a database unlocks:
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Historical trend analysis
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Automated reporting
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Cross-system analytics
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Compliance and traceability
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Integration with enterprise systems
This turns industrial signals into actionable business intelligence.
Solution: OPC Easy Archiver + OPC UA Proxy
To reliably store OPC UA data, you can combine:
OPC Easy Archiver: A powerful data archiving service that logs real-time OPC data into databases or CSV files, with store-and-forward and reconnection support.
OPC UA Proxy: Acts as an intermediary to aggregate OPC UA data from multiple servers and expose it to the archiver consistently and securely.
Together, they provide a complete OPC UA data storage pipeline from the source servers into structured databases for analytics and reporting.
Key Benefits of this Approach
- Reliable Data Delivery
Includes store-and-forward and automatic reconnection to handle network interruptions. - Flexible Storage Options
Supports both SQL databases and CSV files – ideal for many industrial IT environments. - Scalability
Designed to log data from multiple servers and dozens of tags without performance degradation. - Cloud-Ready Integration
Logged data can be stored in cloud databases (e.g., Azure SQL) for enterprise analytics. - Simplified Architecture
No need for custom scripting or manual database integration – everything is automated.
For more information:
OPC Easy Archiver: https://integrationobjects.com/opc-products/opc-data-archiving/opc-easy-archiver/
OPC UA Proxy: https://integrationobjects.com/opc-products/opc-unified-architecture/opc-ua-proxy/
Watch our demo videos to learn how you can easily configure OPC Easy Archiver and OPC UA Proxy:
