SIST EN 62439-1:2010/A2:2018

Industrial communication networks - High availability automation networks - Part 1: General concepts and calculation methods (IEC 62439-1:2010/A2:2016)

IEC 62439-2:2016 is applicable to high-availability automation networks based on the ISO/IEC/IEEE 8802-3 (IEEE 802.3) (Ethernet) technology. This part of the IEC 62439 series specifies a recovery protocol based on a ring topology, designed to react deterministically on a single failure of an inter-switch link or switch in the network, under the control of a dedicated media redundancy manager node.This second edition cancels and replaces the first edition published in 2010. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- adding a protocol extension to select the media redundancy manager automatically;
- adding a protocol to redundantly connect media redundancy protocol rings.
This publication is to be read in conjunction with IEC 62439-1:2010.

Industrielle Kommunikationsnetze - Hochverfügbare Automatisierungsnetze - Teil 1: Grundlagen und Berechnungsmethoden (IEC 62439-1:2010/A2:2016)

Réseaux industriels de communication - Réseaux d'automatisation à haute disponibilité - Partie 1: Concepts généraux et méthodes de calcul (IEC 62439-1:2010/A2:2016)

IEC 62439-2:2016 concerne les réseaux de haute disponibilité pour l'automation reposant sur la technologie ISO/IEC/IEEE 8802-3 (IEEE 802.3) (Ethernet). La présente partie de la série IEC 62439 spécifie un protocole de reprise reposant sur une topologie en anneau, conçu pour réagir de manière déterministe sur une seule défaillance d'une maille interétage ou d'un commutateur du réseau, sous le contrôle d'un n ud du gestionnaire de redondance du support dédié. Cette deuxième édition annule et remplace la première édition parue en 2010. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
- ajout d'une extension de protocole pour sélectionner automatiquement le gestionnaire de redondance du support;
- ajout d'un protocole pour connecter de manière redondante les anneaux du protocole de redondance du support.
Cette publication doit être lue conjointement avec la IEC 62439-1:2010.

Industrijska komunikacijska omrežja - Avtomatizacija omrežja z visoko razpoložljivostjo - 1. del: Splošni koncept in računske metode - Dodatek 2 (IEC 62439-1:2010/A2:2016)

General Information

• Status: Published
• Publication Date: 16-Jan-2018
• ICS: 25.040.01 - Industrial automation systems in general
• ICS: 35.110 - Networking
• Technical Committee: MOV - Measuring equipment for electromagnetic quantities
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 27-Nov-2017
• Due Date: 01-Feb-2018
• Completion Date: 17-Jan-2018
• Ref Project: EN 62439-1:2010/A2:2017 - Industrial communication networks - High availability automation networks - Part 1: General concepts and calculation methods

Overview

EN 62439-1:2010/A2:2017 (IEC 62439-1:2010/A2:2016) defines the general concepts and calculation methods for designing and assessing high-availability automation networks used in industrial communication. It provides the foundational terminology, availability metrics, and modelling techniques that support selection and assessment of media redundancy protocols (MRPs) and fault-recovery strategies for industrial Ethernet systems.

Key topics

• High-availability concepts: definitions of availability, failure modes, and deterministic recovery objectives for automation networks.
• Calculation methods: procedures and indicators to estimate recovery times and overall network availability using standardized modelling approaches.
• Media redundancy and reserved addresses: references to media redundancy technologies (e.g., PRP, HSR) and reserved network addresses - HSR uses 0x892F.
• Protocol performance indicators: example worst-case timings included in the amendment:
  • MRP (IEC 62439-2) - worst-case recovery depends on parameter set and topology: 500 ms, 200 ms, 30 ms or 10 ms for a single ring of up to 50 switches.
  • BRP (IEC 62439-5) - 8.88 ms worst case for a doubly meshed end-node topology with 100 end nodes.
• Amendment highlights:
  • Adds a protocol extension for automatic selection of the Media Redundancy Manager (MRM).
  • Adds a protocol to redundantly connect media redundancy protocol rings.
• Scope linkage: Part 1 is intended to be read together with the part(s) that specify concrete recovery protocols (for example, IEC 62439-2 for ring-based recovery).

Applications

EN 62439-1 supports practical engineering and procurement decisions in industrial automation and process control:

• Designing industrial Ethernet topologies for deterministic fault recovery.
• Calculating expected recovery times and availability for safety-critical or production-critical systems.
• Comparing and selecting redundancy protocols (PRP, HSR, MRP, BRP) based on quantitative metrics.
• Creating specification and compliance documentation for system integrators, manufacturers and asset owners.

Who should use it

• Network architects and automation engineers designing robust industrial networks.
• System integrators implementing deterministic redundancy and failover.
• Maintenance and safety engineers assessing availability targets.
• Procurement and compliance teams specifying standards-based network requirements.

Related standards

• IEC/EN 62439-2: Media Redundancy Protocols (ring topologies, MRP)
• IEC/EN 62439-3: HSR (High-availability Seamless Redundancy)
• IEC/EN 62439-5: BRP (Bridge Redundancy Protocol)

EN 62439-1:2010/A2:2017 is a foundational reference for achieving and calculating high availability in industrial communication networks and should be used alongside the protocol-specific parts of the IEC 62439 series.

Standards Content (Sample)

SLOVENSKI STANDARD
01-februar-2018
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Industrial communication networks - High availability automation networks - Part 1:
General concepts and calculation methods (IEC 62439-1:2010/A2:2016)
Industrielle Kommunikationsnetze - Hochverfügbare Automatisierungsnetze - Teil 1:
Grundlagen und Berechnungsmethoden (IEC 62439-1:2010/A2:2016)
Réseaux industriels de communication - Réseaux d'automatisation à haute disponibilité -
Partie 1: Concepts généraux et méthodes de calcul (IEC 62439-1:2010/A2:2016)
Ta slovenski standard je istoveten z: EN 62439-1:2010/A2:2017
ICS:
25.040.01 Sistemi za avtomatizacijo v Industrial automation
industriji na splošno systems in general
35.110 Omreževanje Networking
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 62439-1:2010/A2

NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2017
ICS 35.040; 25.040
English Version
Industrial communication networks - High availability automation
networks - Part 1: General concepts and calculation methods
(IEC 62439-1:2010/A2:2016)
Réseaux industriels de communication - Réseaux Industrielle Kommunikationsnetze - Hochverfügbare
d'automatisation à haute disponibilité - Partie 1: Concepts Automatisierungsnetze - Teil 1: Grundlagen und
généraux et méthodes de calcul Berechnungsmethoden
(IEC 62439-1:2010/A2:2016) (IEC 62439-1:2010/A2:2016)
This amendment A2 modifies the European Standard EN 62439-1:2010; it was approved by CENELEC on 2016-04-01. CENELEC
members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this amendment the
status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This amendment exists in three official versions (English, French, German). A version in any other language made by translation under the
responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as
the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,
Switzerland, Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 62439-1:2010/A2:2017 E

European foreword
The text of document 65C/834/FDIS, future edition 1 of IEC 62439-1:2010/A2, prepared by SC 65C
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