EN IEC 62439-3:2018

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms, definitions, abbreviations, acronyms,
  and conventions
4 Parallel Redundancy Protocol (PRP)
5 High-availability Seamless Redundancy (HSR)
6 Protocol Implementation Conformance
  Statement (PICS)
7 PRP/HSR Management Information Base (MIB)
Annex A (normative) - Clocks synchronization over
        redundant paths in IEC 62439-3
Annex B (normative) - PTP profile for Power Utility
        Automation - Redundant clock attachment
Annex C (normative) - PTP profiles for high-availability
        automation networks
Annex D (informative) - Precision Time Protocol
        tutorial for IEC 62439-3
Annex E (normative) - Management Information base
        for singly and doubly attached clocks
Bibliography
Annex ZA (normative) - Normative references to
         international publications with their
         corresponding European publications

IEC 62439-3:2016 is available as IEC 62439-3:2016RLV which contains the International Standard and its Redlineversion, showing all changes of the technical content compared tothe previous edition.IEC 62439-3:2016 is applicable to high-availability automation networks based on the Ethernet technology. This part of IEC 62439 specifies two redundancy protocols designed to provide seamless recovery in case of single failure of an inter-bridge link or bridge in the network, which are based on the same scheme: parallel transmission of duplicated information. This third edition cancels and replaces the second edition published in 2012. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:- technical corrections and extension of specifications;- consideration of IEC 61588 clock synchronization with end-to-end delay measurement alongside the existing peer-to-peer delay measurement in PRP.