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

Amended by

IEC 62439-3:2021/COR1:2023

Available format(s)

Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English - French

Published date

12-15-2021

Publisher

International Electrotechnical Committee

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.

Committee	TC 65/SC 65C
DocumentType	Standard
Pages	493
PublisherName	International Electrotechnical Committee
Status	Current
Supersedes	IEC 62439-3:2016 IEC 62439-3 REDLINE : 3ED 2016 IEC 62439-3:2016 RLV

Standards	Relationship
DS/EN IEC 62439-3:2022	Identical
SS-EN IEC 62439-3, UTG 4:2022	Identical
NF EN IEC 62439-3:2022	Identical
PN-EN IEC 62439-3:2022-09	Identical
EN IEC 62439-3:2022	Identical
I.S. EN IEC 62439-3:2022	Identical
UNE-EN IEC 62439-3:2022	Identical