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IEC 62439-4:2010

Industrial communication networks - High availability automation networks - Part 4: Cross-network Redundancy Protocol (CRP)

Edition date: 2010-02-26
In Force
Available languages: English, French
Summary: IEC 62439-4:2010 is applicable to high-availability automation networks based on the ISO/IEC 8802-3 (IEEE 802.3) (Ethernet) technology. It specifies a redundancy protocol that is based on the duplication of the network, the redundancy protocol being executed within the end nodes, as opposed to a redundancy protocol built in the switches. The switchover decision is taken in each node individually. The cross-network connection capability enables single attached end nodes to be connected on either of the two networks. It cancels and replaces IEC 62439 published in 2008 and constitutes a technical revision. It includes the following significant technical changes with respect to IEC 62439 (2008):
- adding a calculation method for RSTP (rapid spanning tree protocol, IEEE 802.1Q),
- adding two new redundancy protocols: HSR (High-availability Seamless Redundancy) and DRP (Distributed Redundancy Protocol),
- moving former Clauses 1 to 4 (introduction, definitions, general aspects) and the Annexes (taxonomy, availability calculation) to IEC 62439-1, which serves now as a base for the other documents,
- moving Clause 5 (MRP) to IEC 62439-2 with minor editorial changes,
- moving Clause 6 (PRP) was to IEC 62439-3 with minor editorial changes,
- moving Clause 7 (CRP) was to IEC 62439-4 with minor editorial changes, and
- moving Clause 8 (BRP) was to IEC 62439-5 with minor editorial changes,
- adding a method to calculate the maximum recovery time of RSTP in a restricted configuration (ring) to IEC 62439-1 as Clause 8,
- adding specifications of the HSR (High-availability Seamless Redundancy) protocol, which shares the principles of PRP to IEC 62439-3 as Clause 5, and
- introducing the DRP protocol as IEC 62439-6.

This publication is to be read in conjunction with IEC 62439-1:2010.

La CEI 62439-4:2010 est applicable aux réseaux d'automatisation à haute disponibilité basés sur la technologie ISO/CEI 8802-3 (IEEE 802.3) (Ethernet). Elle définit un protocole de redondance basé sur la duplication du réseau, le protocole de redondance étant exécuté dans les n uds terminaux, par opposition à un protocole de redondance intégré aux commutateurs. La décision de commutation est prise individuellement par chaque n ud. La capacité de connexion inter-réseau permet à des n uds terminaux simples d'être connectés à l'un ou l'autre des deux réseaux. Elle annule et remplace la CEI 62439 publiée en 2008. et constitue une révision technique. Elle inclut les modifications techniques majeures suivantes par rapport à la CEI 62439 (2008):
- ajout d'une méthode de calcul pour les RSTP (Rapid spanning tree protocol, IEEE 802.1Q),
- ajout de deux nouveaux protocoles de redondance: HSR (High-availability Seamless Redundancy) et DRP (Distributed Redundancy Protocol),
- transfert des anciens Articles 1 à 4 (introduction, définitions, aspects généraux) et des Annexes (taxonomie, calcul de disponibilité) dans la CEI 62439-1, qui sert désormais de base pour les autres documents,
- transfert de l'Article 5 (MRP) dans la CEI 62439-2 avec des modifications éditoriales mineures,
- transfert de l'Article 6 (PRP) dans la CEI 62439-3 avec des modifications éditoriales mineures,
- transfert de l'Article 7 (CRP) dans la CEI 62439-4 avec des modifications éditoriales mineures, et
- transfert de l'Article 8 (BRP) dans la CEI 62439-5 avec des modifications éditoriales mineures,
- ajout d'une méthode de calcul de la durée maximale de rétablissement de RSTP dans une configuration réduite (anneau) dans la CEI 62439-1 comme Article 8,
- ajout de spécifications de protocole HSR (High-availability Seamless Redundancy), qui partage les principes de PRP dans la CEI 62439-3 comme Article 5, et
- introduction du protocole DRP en tant que CEI 62439-6.

Cette publication doit être lue conjointement avec la CEI 62439-1:2010.
ICS: 35.100.05-Multilayer applications, 25.040.40-Industrial process measurement and control
CTN: TC 65/SC 65C - 1376

Modificaciones Normas

Es modificada por IEC 62439-4:2010/AMD1:2012

Reemplazo Normas

Reemplazada parcialmente a IEC 62439:2008

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