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IEC 62439-3:2021 ED4

Industrial communication networks - High availability automation networks - Part 3: Parallel Redundancy Protocol (PRP) and High-availability Seamless Redundancy (HSR) IEC 62439-3:2021 ED4

Publication date:   Dec 15, 2021

General information

60.60 Standard published   Dec 15, 2021

IEC

TC 65/SC 65C

International Standard

25.040.40   Industrial process measurement and control | 35.100.05   Multilayer applications

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Scope

IEC 62439-3:2021 specifies two related redundancy protocols that, in the event of failure of any network element, provide seamless switchover with zero recovery time:
• PRP (Parallel Redundancy Protocol), which allows attaching nodes to two separate networks while allowing attachment of nodes to one network only; and
• HSR (High-availability Seamless Redundancy), which allows threading two-port nodes in a ring or multi-port nodes in a meshed network.
The contents of the corrigendum of April 2023 have been included in this copy.

Life cycle

PREVIOUSLY

WITHDRAWN
IEC 62439-3:2016 ED3

NOW

PUBLISHED
IEC 62439-3:2021 ED4
60.60 Standard published
Dec 15, 2021

CORRIGENDA / AMENDMENTS

PUBLISHED
IEC 62439-3:2021/COR1:2023 ED4