标准摘要
[中文适用范围]： IEC 61804 的这一部分适用于过程控制的功能块 (FB)。本文件通过使用有关多个元素的协调工作的结果来指定 FB。 a) 定义符合 IEC 61804-2 的设备组件的设备模型。 b) 用于测量、驱动和处理的 FB 的概念规范。这包括支持控制的基本功能的一般规则，同时避免阻碍创新以及不同工业部门专业化的细节。 c) 电子设备描述（EDD）技术，可以使用工程生命周期的工具集成真实的产品细节。 FB的标准化工作是通过协调现有技术的概念描述来进行的。它产生了一个抽象级别，允许以独特的方式定义共同特征。这种抽象的愿景在这里被称为“概念 FB 规范”，并由工业团体映射到特定的通信系统及其随附的定义。注：本文档可以映射到 ISO 15745-1。当今市场上有一些解决方案可以满足本文档的要求，并展示如何在给定技术中实现概念规范。新技术需要找到等效的解决方案（见图 4）。 [外文原描述]： IEC 61804-2:2018 specifies FB (function blocks) by using the result of a harmonization work as regards several elements. a) The device model which defines the components of an IEC 61804-2 conformant device. b) Conceptual specifications of FBs for measurement, actuation and processing. This includes general rules for the essential features to support control, whilst avoiding details which stop innovation as well as specialization for different industrial sectors. c) The electronic device description (EDD) technology, which enables the integration of real product details using the tools of the engineering life cycle. This third edition cancels and replaces the second edition published in 2006 and integrates parts of IEC 61804-1 which was withdrawn in January 2013. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) added command communication mapping in Clause 8; b) moved and reword compatibility level definition from IEC 62804-1 to new Annex B and terms and definitions; c) added proxy concept in new Annex C.
英文名称Function blocks (FB) for process control and electronic device description language (EDDL) - Part 2: Specification of FB concept