标准摘要
[中文适用范围]： IEC 62439 系列适用于基于 ISO/IEC 8802-3 (IEEE 802.3)（以太网）技术的高可用性自动化网络。 IEC 62439 系列的这一部分规定了？ IEC 62439 系列其他部分的通用元素和定义； ？一致性测试规范（规范性）； ？网络特征的分类方案（信息性）； ？估计网络可用性的方法（资料性）； ？ RSTP中确定性恢复时间的配置规则@计算和测量方法。 [外文原描述]： IEC 62439-1:2010 is applicable to high-availability automation networks based on the ISO/IEC 8802-3 (IEEE 802.3) (Ethernet) technology. It specifies: - the common elements and definitions for other parts of the IEC 62439 series; - the conformance test specification (normative); - a classification scheme for network characteristics (informative); - a methodology for estimating network availability (informative); - the configuration rules, calculation and measurement method for a deterministic recovery time in RSTP. This standard cancels and replaces IEC 62439 published in 2008 and constitutes a technical revision. It includes the following changes: - a new calculation method for RSTP (rapid spanning tree protocol, IEEE 802.1Q), - two new redundancy protocols: HSR (High-availability Seamless Redundancy) and DRP (Distributed Redundancy Protocol), - a new method to calculate the maximum recovery time of RSTP in a restricted configuration (ring) to IEC 62439-1 as Clause 8, new specifications of the HSR (High-availability Seamless Redundancy) protocol, which shares the principles of PRP to IEC 62439-3 as Clause 5, and - introduces the DRP protocol as IEC 62439-6. This bilingual version (2013-07) corresponds to the monolingual English version, published in 2010-02.
英文名称Industrial communication networks - High availability automation networks - Part 1: General concepts and calculation methods