工业通信网络 – 配置文件 – 第3-19部分：功能安全现场总线 – CPF 19 附加规范

[中文适用范围]： 本部分IEC 61784-3规定了基于IEC 61784-1-19、IEC 61784-2-19和IEC 61158系列(类型24和类型27)的安全通信层(服务和协议)。它确定了IEC 61784-3中定义的功能安全通信原则，这些原则与本安全通信层相关。本安全通信层仅适用于安全设备的实现。 注1: 它不包括电气安全和本质安全方面。电气安全涉及电气冲击等危险。本质安全涉及与潜在爆炸性环境相关的危险。 本文件定义了在分布式网络中使用现场总线技术传输安全相关消息的机制，符合IEC 61508系列对功能安全的要求。这些机制可用于各种工业应用，如过程控制、制造自动化和机械。 本文件为符合要求的设备和系统的开发者和评估者提供了指南。 注2: 系统的最终SIL声明取决于所选功能安全通信配置文件在该系统中的实现 - 根据本文件在标准设备中实现功能安全通信配置文件不足以将其认定为安全设备。 [外文原描述]： IEC 61784-3-19:2024 specifies a safety communication layer (services and protocol) based on IEC 61784‑1-19, IEC 61784-2-19 and the IEC 61158 series (Type 24 and Type 27). It identifies the principles for functional safety communications defined in IEC 61784‑3 that are relevant for this safety communication layer. This safety communication layer is intended for implementation in safety devices only. NOTE 1 It does not cover electrical safety and intrinsic safety aspects. Electrical safety relates to hazards such as electrical shock. Intrinsic safety relates to hazards associated with potentially explosive atmospheres. This document defines mechanisms for the transmission of safety-relevant messages among participants within a distributed network using fieldbus technology in accordance with the requirements of the IEC 61508 series for functional safety. These mechanisms can be used in various industrial applications such as process control, manufacturing automation and machinery. This document provides guidelines for both developers and assessors of compliant devices and systems. NOTE 2 The resulting SIL claim of a system depends on the implementation of the selected functional safety communication profile within this system – implementation of a functional safety communication profile according to this document in a standard device is not sufficient to qualify it as a safety device.