IEC 62439-3:2012
Industrial communication networks - High availability automation networks - Part 3: Parallel Redundancy Protocol (PRP) and High-availability Seamless Redundancy (HSR)
OVERVIEW
IEC 62439-3:2012 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: duplication of the LAN, resp. duplication of the transmitted information. This second edition cancels and replaces the first edition published in 2010. It constitutes a technical revision. The main changes with respect to the previous edition are:
- specification of the interconnection of PRP and HSR networks;
- introduction of a suffix for PRP frames;
- clarification and modification of specifications to ensure interoperability;
- slackening of the specifications to allow different implementations;
- consideration of clock synchronization according to IEC 61588;
- introduction of test modes to simplify testing and maintenance.
This publication is to be read in conjunction with IEC 62439-1:2010.
COMMENTS
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PRODUCT DETAILS
| Status | Withdrawn - 02 Jan 2026 |
|---|---|
| Edition | 2012 |
| No. of Pages | 177 |
| ICS Classification | 35.100.05 Multilayer applications 25.040.40 Industrial process measurement and control |
| Committee | TC 65/SC 65C |
| Available for Purchase | For sale in Singapore only |
| Adoption | IEC : 0 |