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IEC 62541-1 ED1

OPC Unified Architecture – Part 1: Overview and Concepts

General information

Current stage: 60.00 Effective date: Oct 27, 2025

Next stage: PPUB Next stage date: Dec 8, 2025

Originator: IEC

Owner: TC 65/SC 65E

Type: International Standard

ICS: 25.040

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.

Life cycle

NOW

IN_DEVELOPMENT
IEC 62541-1 ED1
60.00 Standard under publication
Oct 27, 2025