工业通讯网络.配置文件.第3部分:功能安全性现场总线.一般规则和属性定义

[中文适用范围]： IEC 61784-3 系列的这一部分解释了一些通用原则，可用于在分布式网络内的参与者之间传输安全相关消息，该网络使用现场总线技术，符合 IEC 61508 系列 1 功能安全的要求。这些原则基于黑色通道方法。它们可用于各种工业应用，例如过程控制、制造自动化和机械。本第 2 部分和 IEC 61784-3-x 部分根据 IEC 61784-1、IEC 61784-2 和 IEC 61158 系列中现场总线技术的通信配置文件和协议层指定了多种功能安全通信配置文件。这些功能安全通信配置文件使用 IEC 61508 中定义的黑色通道方法。这些功能安全通信配置文件专门用于在安全设备中实施。注 1：满足 IEC 61508 系列要求的其他安全相关通信系统可能存在，但未包含在本标准中。注 2：它不包括电气安全和本质安全方面。电气安全涉及电击等危险。本质安全涉及与潜在爆炸性环境相关的危险。所有系统在其生命周期的某个阶段都会受到未经授权的访问。在任何安全相关应用中都需要考虑额外的措施，以保护现场总线系统免受未经授权的访问。 IEC 62443 系列将解决其中许多问题；与 IEC 62443 系列的关系在本部分的专用子条款中有详细说明。注 3：IEC 61784-43 中还规定了附加的配置文件特定安全要求。注 4：按照 IEC 61508 系列中的定义，在设备中根据本部分实施功能安全通信配置文件不足以将其视为安全设备。注 5：系统的 SIL 声明结果取决于实施方式 [外文原描述]： IEC 61784-3:2016 series explains some common principles that can be used in the transmission of safety-relevant messages among participants within a distributed network which use fieldbus technology in accordance with the requirements of IEC 61508 series for functional safety. These principles are based on the black channel approach. They can be used in various industrial applications such as process control, manufacturing automation and machinery. This part and the IEC 61784-3-x parts specify several functional safety communication profiles based on the communication profiles and protocol layers of the fieldbus technologies in IEC 61784-1, IEC 61784-2 and the IEC 61158 series. These functional safety communication profiles use the black channel approach, as defined in IEC 61508. These functional safety communication profiles are intended for implementation in safety devices exclusively. This third edition cancels and replaces the second edition published in 2010. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - clarifications and additional explanations for requirements, updated references; - deletion of technical overviews of profiles (Clauses 6 to 13), and associated dedicated subclauses for terms, definitions, symbols and abbreviations; - addition of profiles for Communication Profile Families 8, 17 and 18 (Clauses 10, 14, 15); - clarifications of models in Annex A; - Annex B changed from informative to normative; - addition of a new informative Annex E describing models for explicit and implicit FSCP mechanisms; - addition of a new informative Annex F introducing an extended model for estimation of the total residual error rate; - updates in parts for CPF 1, CPF 2, CPF 3, CPF 8, CPF 13 (details provided in the parts); - addition of a new part for CPF 17.