标准摘要
[中文适用范围]： 本文件规定了一种方法，并为执行安全功能的控制系统（SRP/CS）的安全相关部分（包括软件设计）的设计和集成提供了相关要求、建议和指南。 本文件适用于高要求和连续操作模式的 SRP/CS，包括其子系统，无论技术和能源类型如何（例如电气、液压、气动和机械）。 本文件不适用于低需求操作模式。 注 1：低需求运行模式见 3.1.44 和 IEC 61508 系列。 本文件未指定特定应用中使用的安全功能或所需性能级别 (PLr)。 注2：本文件规定了SRP/CS设计的方法，不考虑某些机械（例如移动机械）是否有特定要求。 这些特定要求可以在 Type-C 标准中考虑。 本文件没有对作为 SRP/CS 一部分的产品/组件的设计提出具体要求。 适用的 ISO 和 IEC 标准涵盖了 SRP/CS 某些组件设计的具体要求。 本文件没有提供安全方面的具体措施（例如物理、IT 安全、网络安全）。 注 3：安全问题可能对安全功能产生影响。 请参阅 ISO/TR 22100-4 和 IEC/TR 63074 了解更多信息。 [外文原描述]： This document specifies a methodology and provides related requirements, recommendations and guidance for the design and integration of safety‐related parts of control systems (SRP/CS) that perform safety functions, including the design of software. This document applies to SRP/CS for high demand and continuous modes of operation including their subsystems, regardless of the type of technology and energy (e.g. electrical, hydraulic, pneumatic, and mechanical). This document does not apply to low demand mode of operation. NOTE 1 See 3.1.44 and the IEC 61508 series for low demand mode of operation. This document does not specify the safety functions or required performance levels (PL r ) that are to be used in particular applications. NOTE 2 This document specifies a methodology for SRP/CS design without considering if certain machinery (e.g. mobile machinery) has specific requirements. These specific requirements can be considered in a Type‑C standard. This document does not give specific requirements for the design of products/components that are parts of SRP/CS. Specific requirements for the design of some components of SRP/CS are covered by applicable ISO and IEC standards. This document does not provide specific measures for security aspects (e.g. physical, IT-security, cyber security). NOTE 3 Security issues can have an effect on safety functions. See ISO/TR 22100-4 and IEC/TR 63074 for further information.
英文名称Safety of machinery — Safety-related parts of control systems — Part 1: General principles for design