IEC 62439-3:2021

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

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.

SDO:

IEC

Language:

English

ICS Codes:

25.040.40; 35.100.05

Status:

Published

Publish date:

2021-12-14

Standard Number:

IEC 62439-3:2021