OPC UA Universal Server: Unify OT Data with OPC UA

Overview

What does OPC UA Universal Server Do?

The OPC UA Universal Server connects to multiple industrial and IT protocols, aggregates data from disparate sources, and converts that data into a unified OPC UA information model. This standardized OPC UA interface enable secure, scalable, and efficient communication across enterprise IT and OT systems.

Challenges Addressed by OPC UA Universal Server

Industrial environments struggle with siloed systems, varied protocols and slow, insecure data transfer. Legacy methods complicate digital transformation and obscure real-time insights.

Siloed Data Systems

Inconsistent Data Standards

Slow or Unreliable IT/OT Communication

Security and Compliance Risks

Why Choose OPC UA Universal Server?

Collects data from single or multiple disparate data sources with ease

Converts any industrial or IoT protocol to standard OPC UA

Build in minutes using SIOTH® configurator — no heavy coding required

Ensure Secure, scalable, and optimized for IT-OT-IIoT integration

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Features

Built for Industrial Connectivity and Data Integration

The OPC UA Universal Server provides native OPC UA connectivity, structured data modeling, secure communication, and scalable deployment for industrial and enterprise systems.

Connectivity & Protocol Support

Simultaneous connectivity to multiple industrial and IT protocols
Convert Modbus, DNP3, SNMP, OPC DA, and other sources into OPC UA
Native OPC UA Server supporting DA, HDA, and AE
Aggregate heterogeneous systems into a single OPC UA address space
Enable seamless IT/OT data exchange

Data Model & Management

Unified OPC UA information model
Centralized namespace and structured tag organization
Support for real-time, historical, and event-based data
High-performance handling of large tag volumes
Configurable data acquisition and update rates

Security, Reliability & Performance

OPC UA built-in security mechanisms
Secure communication with encryption and authentication
Role-based user access control
High availability and continuous operation
Scale from small deployments to enterprise-wide architectures
Support for DMZ-based architectures and the Purdue model
Store-and-forward for reliable data delivery in unstable networks

Deployment, Configuration & Extensions

Easy configuration using graphical tools
Designed for Windows-based industrial environments
Support on-premises, cloud, and hybrid deployments
Seamless integration with the SIOTH® platform
Extensible architecture for future protocols and features
Centralized configuration and management

Ressources

Related ressources.

Blog

SIOTH®: Securely Transport your Field Data to the Cloud with MQTT.

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Webinar

Enhance the Efficiency of Your Tank Operations Management with Digital Transformation.

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Demo

Configuring the OPC UA Universal Server, built in minutes using SIOTH®.

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Frequently Asked Questions

What is the OPC UA Universal Server?Product & Architecture

The OPC UA Universal Server is a centralized OPC UA server that aggregates data from multiple industrial and IT systems and exposes it through a standardized OPC UA interface for secure and reliable data access.

What protocols does the OPC UA Universal Server support?Connectivity & Data Handling

Connects seamlessly to a myriad of protocols, including:

Industrial Protocols: Modbus, OPC DA (64/32), OPC HDA, OPC AE, OPC UA, DNP, S7, Allen Bradley, IEC -104, BACnet, J1939, SNMP
IoT Protocols: MQTT, AMQP, REST
Data Stores: MS SQL, MySQL, Oracle, PostgreSQL, Mongo, FTP, Kafka, MS Access, CSV, Aveva PI, InfluxDB, ODBC

Can the OPC UA Universal Server act as an aggregator for other OPC UA Servers?Product & Architecture

Yes. The OPC UA Universal Server can collect data from multiple OPC UA Servers and expose them to third party applications using a unified data model. In case the source OPC UA Servers are in the OT layer, the OPC UA Universal Server can be deployed on DMZ layer to act as an additional security layer and isolate the OT network.

Does the OPC UA Universal Server support real-time, historical, and event data?Connectivity & Data Handling

Yes. The OPC UA Universal Server supports real-time data, historical data, alarms and status notifications, allowing clients to access operational data using standard OPC UA services. The OPC UA Universal Server provides a graphical user interface allowing users to configure their input tags, history tags as well as as alarms (high-high, high, low, low-low alarms)

How is security handled in the OPC UA Universal Server?Security, Reliability & Scalability

The OPC UA Universal Server implements OPC UA security mechanisms, including secure communication, authentication, and user access control, to ensure reliable and protected data exchange between systems.

Can the OPC UA Universal Server be integrated into existing systems?Connectivity & Data Handling

Yes. The OPC UA Universal Server is designed to integrate with existing industrial infrastructures and legacy systems, allowing organizations to modernize their architectures without replacing existing equipment.

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