标准摘要
[中文适用范围]: 本部分IEC 62566提供了要求在核电厂仪控系统执行安全类别B或C(按IEC 61226定义)的硬件描述语言可编程设备(HPD)的高可靠性实现。HPD的编程依赖于硬件描述语言(HDL)及相关软件工具。它们通常基于空白的现场可编程门阵列(FPGA)或类似微电子技术,如可编程逻辑器件(PLD)、复杂可编程逻辑器件(CPLD)等。通用集成电路(如微处理器)不属于HPD。附录B.8提供了多种集成电路类型的描述。本文档提供了以下方面的要求:a) 专门针对HPD生命周期的各个阶段(包括需求规范、设计、实现、集成和验证,以及每个阶段相关的验证活动);b) 计划和补充活动,如修改和生产;c) 预开发组件的选择,包括微电子技术和预开发模块(PDB);d) 用于设计、实现和验证HPD的工具。本文档不对微电子技术的开发提出要求,这些技术通常作为“商用现货”产品提供,且未按照核质量保证标准开发。它解决的是在仪控项目中使用这些微电子技术以及HDL和相关工具进行的开发。本文档提供指导,以尽可能避免HPD中残留的潜在故障,并减少单点故障以及潜在共因故障(CCF)的敏感性。与环境资格认证以及因老化或物理降解导致的故障相关可靠性方面不在本文档范围内。其他标准,特别是IEC 60987、IEC/IEEE 60780-323和IEC 62342,涉及这些主题。本文档不涵盖仪控系统HDL方面的网络安全。IEC 62645为仪控可编程数字系统的安全计划提供了要求。本文档提供指导和要求,以产生可验证的HPD设计和实现,并为其执行类别B或C安全功能的作用提供理由。本文档描述了在专用生命周期框架内开发HPD的活动,还描述了在执行HPD时除IEC 61226(系统分类)和IEC 61513(系统集成和验证)要求外,还应使用的活动和指南。 [外文原描述]: IEC 62566-2:2020 provides requirements for achieving highly reliable HDL-Programmed Devices (HPDs), for use in I&C systems of nuclear power plants performing functions of safety category B or C as defined by IEC 61226. The programming of HPDs relies on Hardware Description Languages (HDL) and related software tools. They are typically based on blank Field Programmable Gate Arrays (FPGAs) or similar micro-electronic technologies such as Programmable Logic Devices (PLD), Complex Programmable Logic Devices (CPLDs), etc. General purpose integrated circuits such as microprocessors are not HPDs. This document provides requirements on: a) a dedicated HPD life-cycle addressing each phase of the development of HPDs, including specification of requirements, design, implementation, integration and validation, as well as verification activities associated with each phase, b) planning and complementary activities such as modification and production, c) selection of pre-developed components. This includes micro-electronic technologies and Pre-Developed Blocks (PDBs), d) tools used to design, implement and verify HPDs.
英文名称Nuclear power plants - Instrumentation and control systems important to safety - Development of HDL-programmed integrated circuits - Part 2: HDL-programmed integrated circuits for systems performing category B or C functions