IEC 61139-2:2022 工业网络.单点数字通信接口.第2部分:功能安全扩展

标准编号：IEC 61139-2:2022

中文名称：工业网络.单点数字通信接口.第2部分:功能安全扩展

英文名称：Industrial networks - Single-drop digital communication interface - Part 2: Functional safety extensions

发布日期：2022-08-19

标准范围

IEC 61139-2:20 22规定了IEC 61131-9中SDCI的功能安全扩展。这包括:？基于IEC 61131-2的冗余开关信号标准化OSSDe接口，？对SDCI的状态机进行小的修改/扩展以支持安全操作，？在标准SDCI通信之上的精益功能安全通信协议，标准SDCI通信是根据IEC 61784-3:20 21的黑色通道，？用于配置、参数化和调试的协议管理功能，？用于功能安全的IODD扩展，？根据功能安全标准支持专用工具的设备工具接口。本文件不涵盖:？包括多点或多点链路的通信接口或系统，？包括多通道或加密链路的通信接口或系统，？无线通信接口或系统，？将SDCI-FS集成到现场总线/FSCPs等上层系统中。

IEC 61139-2:2022 specifies the extensions to SDCI in IEC 61131-9 for functional safety. This comprises:
？ a standardized OSSDe interface for redundant switching signals based on IEC 61131-2,
？ minor modifications/extensions to state machines of SDCI to support the safety operations,
？ a lean functional safety communication protocol on top of the standard SDCI communication which is a black channel according to IEC 61784-3:2021,
？ protocol management functions for configuration, parameterization, and commissioning,
？ IODD extensions for functional safety,
？ a Device tool interface to support Dedicated Tools according to functional safety standards.
This document does not cover:
？ communication interfaces or systems including multi-point or multi-drop linkages,
？ communication interfaces or systems including multi-channel or encrypted linkages,
？ wireless communication interfaces or systems,
？ integration of SDCI-FS into upper-level systems such as fieldbuses/FSCPs.

标准预览图