IEC 62541-13:20 20作为IEC 62541-13:20 20 RLV提供，其中包含国际标准及其红线版本，显示了与上一版本相比技术内容的所有变化。IEC 62541-13:20 20是整个OPC统一架构规范系列的一部分，定义了与聚合相关的信息模型。第二版取消并取代了2015年发布的IEC 62541-13第一版。没有技术上的改变，但有许多澄清。还有一些对例子的更正。

IEC 62541-13:2020 is available as IEC 62541-13:2020 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

IEC 62541-13:2020 is part of the overall OPC Unified Architecture specification series and defines the information model associated with Aggregates. This second edition cancels and replaces the first edition of IEC 62541-13, published in 2015. No technical changes but numerous clarifications. Also some corrections to the examples.