NF EN IEC 62439-3

Industrial communication networks - High availability automation networks - Part 3 : parallel Redundancy Protocol (PRP) and High-availability Seamless Redundancy (HSR)

Le présent document spécifie deux protocoles de redondance associés qui assurent une commutation transparente avec un temps de reprise nul en cas de défaillance d'un élément de réseau : le protocole de redondance en parallèle PRP (Parallel Redundancy Protocol) qui permet d'associer des noeuds à deux réseaux tout en permettant d'associer des noeuds à un seul réseau ; et la redondance transparente de haute disponibilité HSR (High-availability Seamless Redundancy) qui permet de lier des noeuds à deux ports dans un anneau ou des noeuds à plusieurs ports dans un réseau maillé. Le présent document doit être lu conjointement avec la NF EN 62439-1.

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