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IEC 62541-21 ED1

OPC Unified Architecture – Part 21: Device Onboarding

General information

Current stage: 60.00 Effective date: Oct 29, 2025

Next stage: PPUB Next stage date: Dec 10, 2025

Originator: IEC

Owner: TC 65/SC 65E

Type: International Standard

ICS: 25.040

Scope

IEC 62541-21: 2025 defines the life cycle of Devices and Composites and mechanisms to verify their authenticity, set up their security and maintain their configuration.
The NodeIds of all Nodes described in this standard are only symbolic names. Annex A defines the NamespaceUri for all NodeIds and the actual NodeIds.

Life cycle

NOW

IN_DEVELOPMENT
IEC 62541-21 ED1
60.00 Standard under publication
Oct 29, 2025