ISO 13849-1:2015为控制系统安全相关部分（SRP/CS）的设计和集成原则（包括软件设计）提供了安全要求和指导。对于SRP/CS的这些部分，它指定了包括执行安全功能所需的性能等级的特性。适用于高需求和连续模式的SRP/CS，无论各种机械的技术和能源（电气，液压，气动，机械等）如何。 它没有指定在特定情况下要使用的安全功能或性能级别。 ISO 13849的这一部分提供了使用可编程电子系统的SRP/CS的特定要求。 对于作为SRP/CS的一部分的产品的设计没有给出具体要求。然而，可以使用给出的原则，例如类别或性能水平。 注1:作为SRP/CS的部件的产品示例:继电器，电磁阀，位置开关，PLC，电机控制单元，双手控制装置，压敏设备。对于这样的产品的设计，重要的是参考具体适用的国际标准，例如。 ISO 13851，ISO 13856-1和ISO 13856-2。 注2:要求的定义

ISO 13849-1:2015 provides safety requirements and guidance on the principles for the design and integration of safety-related parts of control systems (SRP/CS), including the design of software. For these parts of SRP/CS, it specifies characteristics that include the performance level required for carrying out safety functions. It applies to SRP/CS for high demand and continuous mode, regardless of the type of technology and energy used (electrical, hydraulic, pneumatic, mechanical, etc.), for all kinds of machinery. It does not specify the safety functions or performance levels that are to be used in a particular case. This part of ISO 13849 provides specific requirements for SRP/CS using programmable electronic system(s). It does not give specific requirements for the design of products which are parts of SRP/CS. Nevertheless, the principles given, such as categories or performance levels, can be used. NOTE 1 Examples of products which are parts of SRP/CS: relays, solenoid valves, position switches, PLCs, motor control units, two-hand control devices, pressure sensitive equipment. For the design of such products, it is important to refer to the specifically applicable International Standards, e.g. ISO 13851, ISO 13856‑1 and ISO 13856‑2. NOTE 2 For the definition of required performance level, see 3.1.24. NOTE 3 The requirements provided in this part of ISO 13849 for programmable electronic systems are compatible with the methodology for the design and development of safety-related electrical, electronic and programmable electronic control systems for machinery given in IEC 62061. NOTE 4 For safety-related embedded software for components with PLr = e, see IEC 61508?3:1998, Clause 7.