IEC 62439-7:2011 

Industrial communication networks - High availability automation networks - Part 7: Ring-based Redundancy Protocol (RRP)


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IEC 62439-7:2011 specifies a redundancy protocol that is based on a ring topology, in which the redundancy protocol is executed at the end nodes, as opposed to being built into the switches. Each node detects link failure and link establishment using media-sensing technologies, and shares the link information with the other nodes, to guarantee fast connectivity recovery times. The nodes have equal RRP network management functions.

This publication is to be read in conjunction with IEC 62439-1:2010. The contents of the corrigendum of May 2015 have been included in this copy.

Additional information

Publication typeInternational Standard
Publication date2011-12-16
Available language(s)English/French
TC/SCTC 65/SC 65C - Industrial networksrss
ICS25.040.40 - Industrial process measurement and control
35.100.05 - Multilayer applications
Stability date  2025
File size2260 KB

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