IEC 62541-1:2025 ED1

OPC Unified Architecture - Part 1: Overview and concepts

Publication date: Dec 19, 2025

General information

Current stage: 60.60 Effective date: Dec 19, 2025

Originator: IEC

Owner: TC 65/SC 65E

Type: International Standard

ICS: 25.040

Languages: English

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Status: Published

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Scope

IEC 62541-1:2025 presents the concepts and overview of the OPC Unified Architecture (OPC UA). Reading this document is helpful to understand the remaining parts of the IEC 62541 series. Each of the other parts is briefly explained along with a suggested reading order. This first edition cancels and replaces IEC TR 62541-1 published in 2020

Life cycle

PREVIOUSLY

WITHDRAWN
IEC TR 62541-1:2010 ED1

NOW

PUBLISHED
IEC 62541-1:2025 ED1
60.60 Standard published
Dec 19, 2025