标准摘要
[中文适用范围]： IEC 62541-21:2026 规定了设备和复合体的生命周期，以及验证其真实性、建立其安全性和维护其配置的机制。本标准中所有节点的节点ID仅为符号名称。附录A定义了所有节点ID的命名空间URI以及实际的节点ID。 [外文原描述]： IEC 62541-21:2026 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.
英文名称OPC unified architecture - Part 21: Device Onboarding