DKE German Commission for Electrical, Electronic & Information Technologies of DIN and VDE
Industrial communication networks - High availability automation networks - Part 3: Parallel Redundancy Protocol (PRP) and High-availability Seamless Redundancy (HSR)
Abstract
The IEC 62439 series is applicable to high-availability automation networks based on the Ethernet technology. This document: – specifies PRP and HSR as two related redundancy protocols designed to provide seamless recovery in case of single failure in the network, which are based on the same scheme: parallel transmission of duplicated information; – specifies the operation of the precision time protocol (PTP) in networks that implement the two redundancy protocols (Annex A); – specifies PTP profiles with performance suitable for power utility automation (Annex B) and industrial automation (Annex C); – includes for better understanding a tutorial (Annex D) on the PTP features effectively used in high-availability automation networks; – includes a management information base for PTP (Annex E); – defines a conformance test suite for the above protocols (Annex F).
Begin
2026-06-18
Planned document number
DIN EN IEC 62439-3
Project number
02233958
