标准摘要
[中文适用范围]： IEC 62541-19:2025定义了OPC统一架构的信息模型。该信息模型描述了从OPC UA信息模型引用到外部词典（如IEC通用数据词典或ECLASS）的基本基础设施。 [外文原描述]： IEC 62541-19: 2025 defines an Information Model of the OPC Unified Architecture. The Information Model describes the basic infrastructure to reference from an OPC UA Information Model to external dictionaries like IEC Common Data Dictionary or ECLASS.
英文名称OPC unified architecture - Part 19: Dictionary Reference