IEC 62541的这一部分定义了OPC统一体系结构（OPC UA）子通信模型。它定义了一个OPC UA发布-订阅模式，作为 IEC 62541-4中服务定义的客户机-服务器模式。IEC TR 62541-1给出了 两种模型及其不同用途的概述。PubSub允许将数据和事件从OPC UA信息源分发到 设备网络、IT和分析云系统中有兴趣的观察者。购买本文件时可获得的所有当前修订均包含在购买本文件中。

This part of IEC 62541 defines the OPC Unified Architecture (OPC UA)PubSubcommunication model. It defines an OPC UA publish subscribe pattern which complements the client server pattern defined by theServicesin IEC 62541-4. IEC TR 62541-1 gives an overview of the two models and their distinct uses.PubSuballows the distribution of data and events from an OPC UA information source to interested observers inside a device network as well as in IT and analytics cloud systems.All current amendments available at time of purchase are included with the purchase of this document.