标准摘要
[中文适用范围]： 本文件规定了核电厂执行A类功能的系统中使用的数据通信要求。 它还涵盖了执行A类功能的设备与执行B类和C类功能以及其他与安全无关的系统的数据通信接口要求。 本文件的范围仅限于考虑电厂I&C安全系统内的数据通信。它不包括通过电话、无线电、语音、传真、电子邮件、公共广播等方式进行的通信。 数据通信设备的内部操作和详细技术规范不在本文件范围内。本文件不适用于处理器单元的内部连接和数据通信、其内存和控制逻辑。它不涉及基于仪器和控制计算机系统的内部处理。 本文件通过引用IEC 60880和IEC 60987（在IEC 61513框架内制定）对在线电厂数据通信的功能和性能提出了要求。它要求根据IEC 61226对通信功能进行分类，这又要求根据IEC/IEEE 60780-323和IEC 60980进行环境和抗震鉴定（即安全功能需要运行的环境）。 [外文原描述]： IEC 61500:2018 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition. IEC 61500:2018 establishes requirements for data communication which is used in systems performing category A functions in nuclear power plants. It covers also interface requirements for data communication of equipment performing category A functions with other systems including those performing category B and C functions and functions not important to safety. This document gives requirements for functions and properties of on-line plant data communication by reference to IEC 60880 and IEC 60987, produced within the framework of IEC 61513. It requires categorisation of the communication functions in accordance with IEC 61226. This new edition includes the following significant technical changes with respect to the previous edition: - the changes introduced to previously referenced standards have been confirmed to apply; - relevant newly published standards have been referenced; - lessons learned from several industrial applications have been incorporated.
英文名称Nuclear power plants - Instrumentation and control systems important to safety - Data communication in systems performing category A functions