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

IEC-62439-3 - EDITION 4.0 - CURRENT
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Included in this current edition are the following subparts:

 EDITION 4.0 - Dec. 1, 2021
 ED. 4.0 CORRIGENDUM 1 - April 1, 2023

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.
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25.040 (Industrial automation systems IT applications in industry, see 35.240.50)

25.040.40 (Industrial process measurement and control)

35.040 (Character sets and information coding Including coding of audio, picture, multimedia and hypermedia information, IT security techniques, encryption, bar coding, electronic signatures, etc.)

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Document Number

IEC 62439-3 Ed. 4.0 b:2021

Revision Level

EDITION 4.0

Status

Current

Publication Date

Dec. 1, 2021

Committee Number

65C