Wednesday, December 3, 2008

Redundancy - IEC 61850 to refer to IEC 62439?

IEC TC 57 WG 10 considers to use in IEC 61850 the results of the edition 2 of the following standard developed by IEC TC 65C:

IEC 62439: Industrial communication networks: high availability automation networks

The CDV has been published November 21, 2008 (Document 65C/519/CDV); the ballot closes 2009-04-24.

The redundancy is intended to be handled in the link layer ... so that the higher layers do not need to be doubled! Be aware, there are several redundancy concepts in IEC 62439 ... you need to know which concept you want to choose before implementing the redundancy software.

IEC 61850 is likely to reference to Part 3 (PRP).
The IEC 62439 (2nd edition CDV) comprises the following solutions:

  • IEC 62439-1 Ed1.0, Industrial communication networks high availability automation networks -Part 1: general concepts and calculation methods (Including RSTP)
  • IEC 62439-2 Ed1.0, Industrial communication networks high availability automation networks -Part 2: Media Redundancy Protocol (MRP)
  • IEC 62439-3 Ed1.0, Industrial communication networks high availability automation networks -Part 3: Parallel Redundancy Protocol (PRP) and High availability Seamless Ring (HSR)
  • IEC 62439-4 Ed1.0, Industrial communication networks high availability automation networks -Part 4: Cross-network Redundancy Protocol (CRP)
  • IEC 62439-5 Ed1.0, Industrial communication networks high availability automation networks -Part 5: Beacon Redundancy Protocol (BRP)
  • IEC 62439-6 Ed1.0, Industrial communication networks high availability automation networks -Part 6: Distributed Redundancy Protocol (DRP)

Very good introduction to standard redundancy concepts, rationale, IEC 62439, etc. by Professor Hubert Kirrmann (ABB Switzerland) [PPT, 2 MB].

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