IEC 62439-4 Ed. 1.0 b:2010

Current Revision

Industrial communication networks - High availability automation networks - Part 4: Cross-network Redundancy Protocol (CRP)

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IEC 62439-4 Ed. 1.0 b:2010

Name: IEC 62439-4 Ed. 1.0 b:2010 – Industrial communication networks - High availability automation networks - Part 4: Cross-network Redundancy Protocol (CRP)
Brand: International Electrotechnical Commission
SKU: IEC 62439-4 Ed. 1.0 b:2010
Price: 372.68 USD
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Industrial communication networks - High availability automation networks - Part 4: Cross-network Redundancy Protocol (CRP)

PUBLISH DATE 2010

PAGES 46

Industrial communication networks - High availability automation networks - Part 4: Cross-network Redundancy Protocol (CRP)

IEC 62439-4:2010 is applicable to high-availability automation networks based on the ISO/IEC 8802-3 (IEEE 802.3) (Ethernet) technology. It specifies a redundancy protocol that is based on the duplication of the network, the redundancy protocol being executed within the end nodes, as opposed to a redundancy protocol built in the switches. The switchover decision is taken in each node individually. The cross-network connection capability enables single attached end nodes to be connected on either of the two networks.

It cancels and replaces IEC 62439 published in 2008 and constitutes a technical revision. It includes the following significant technical changes with respect to IEC 62439 (2008):

adding a calculation method for RSTP (rapid spanning tree protocol, IEEE 802.1Q),
adding two new redundancy protocols: HSR (High-availability Seamless Redundancy) and DRP (Distributed Redundancy Protocol),
moving former Clauses 1 to 4 (introduction, definitions, general aspects) and the Annexes (taxonomy, availability calculation) to IEC 62439-1, which serves now as a base for the other documents,
moving Clause 5 (MRP) to IEC 62439-2 with minor editorial changes,
moving Clause 6 (PRP) to IEC 62439-3 with minor editorial changes,
moving Clause 7 (CRP) to IEC 62439-4 with minor editorial changes, and
moving Clause 8 (BRP) to IEC 62439-5 with minor editorial changes,
adding a method to calculate the maximum recovery time of RSTP in a restricted configuration (ring) to IEC 62439-1 as Clause 8,
adding specifications of the HSR (High-availability Seamless Redundancy) protocol, which shares the principles of PRP to IEC 62439-3 as Clause 5, and
introducing the DRP protocol as IEC 62439-6.

This publication is to be read in conjunction with IEC 62439-1:2010.