BS EN IEC 62541-2:2026

This standard BS EN IEC 62541-2:2026 OPC unified architecture is classified in these ICS categories:

• 25.040.40 Industrial process measurement and control

IEC 62541-2:2026 describes the OPC Unified Architecture (OPC UA) security model. It describes the security threats of the physical, hardware, and software environments in which OPC UA is expected to run. It describes how OPC UA relies upon other standards for security. It provides definition of common security terms that are used in this and other parts of the IEC 62541 series. It gives an overview and concept of the security features that are specified in other parts of the series. It references services, mappings, and Profiles that are specified normatively in other parts of the 62541 series. It provides suggestions or best practice guidelines on implementing security. Any seeming ambiguity between this document and one of the other normative parts does not remove or reduce the requirement specified in the other normative part. There are many different aspects of security that are addressed when developing applications. However, since OPC UA specifies a communication protocol, the focus is on securing the data exchanged between applications. This does not mean that an application developer can ignore the other aspects of security like protecting persistent data against tampering. It is important that the developers look into all aspects of security and decide how they can be addressed in the application. Common security features for industrial Controls are defined in IEC 62443-4-2 and OPC UA defined a relationship to them in Annex A. This document is directed to readers who will develop OPC UA applications. It is also for end Users that wish to understand the various security features and functionality provided by OPC UA. It also offers some recommendations that can be applied when deploying systems. These recommendations are generic in nature since the details would depend on the actual implementation of the OPC UA applications and the choices made for the site security. This edition cancels and replaces the third edition of IEC TR 62541-2, published in 2020.This edition constitutes a technical revision.

BS EN IEC 62541-2:2026 OPC Unified Architecture Security Model

In the ever-evolving landscape of industrial automation and control systems, security is paramount. The BS EN IEC 62541-2:2026 OPC Unified Architecture Security Model is a comprehensive standard that addresses the critical need for robust security measures in OPC Unified Architecture (OPC UA) implementations. Released on April 2, 2026, this standard is an essential resource for professionals seeking to enhance the security of their OPC UA systems.

Overview

The OPC Unified Architecture (OPC UA) is a platform-independent, service-oriented architecture that integrates all the functionality of the individual OPC Classic specifications into one extensible framework. The security model outlined in the BS EN IEC 62541-2:2026 standard provides a detailed framework for ensuring the confidentiality, integrity, and availability of data in OPC UA systems.

Key Features

• Standard Number: BS EN IEC 62541-2:2026
• Pages: 66
• Release Date: April 2, 2026
• ISBN: 978 0 539 29817 8
• Status: Standard

Security Model Highlights

The security model defined in this standard is designed to protect OPC UA applications from a wide range of threats. It includes mechanisms for:

• Authentication: Ensuring that only authorized users and systems can access the OPC UA network.
• Authorization: Defining and enforcing permissions for users and systems to access specific resources.
• Encryption: Protecting data in transit and at rest to prevent unauthorized access and tampering.
• Integrity: Ensuring that data has not been altered or tampered with during transmission.
• Auditability: Providing a comprehensive audit trail of all access and actions within the OPC UA system.

Why Choose BS EN IEC 62541-2:2026?

The BS EN IEC 62541-2:2026 standard is an indispensable tool for organizations that rely on OPC UA for their industrial automation and control systems. By implementing the security measures outlined in this standard, organizations can:

• Enhance Security: Protect sensitive data and systems from cyber threats and unauthorized access.
• Ensure Compliance: Meet industry regulations and standards for data security and privacy.
• Improve Reliability: Maintain the integrity and availability of critical systems and data.
• Build Trust: Demonstrate a commitment to security and data protection to customers and stakeholders.

Comprehensive Coverage

With 66 pages of detailed guidelines and best practices, the BS EN IEC 62541-2:2026 standard provides comprehensive coverage of all aspects of OPC UA security. Whether you are a system integrator, developer, or IT security professional, this standard offers valuable insights and practical solutions for securing your OPC UA implementations.

Conclusion

In today's interconnected world, the security of industrial automation and control systems is more important than ever. The BS EN IEC 62541-2:2026 OPC Unified Architecture Security Model is a vital resource for anyone involved in the design, implementation, or management of OPC UA systems. By adhering to the guidelines and best practices outlined in this standard, organizations can safeguard their systems, protect their data, and ensure the continued success of their operations.

Invest in the security of your OPC UA systems with the BS EN IEC 62541-2:2026 standard and take a proactive approach to protecting your critical infrastructure.