SIST EN 62439-2:2010

Industrial communication networks high availability automation networks - Part 2: Media Redundancy Protocol (MRP) (IEC 62439-2:2010)

The IEC 62439 series is applicable to high-availability automation networks based on the ISO/IEC 8802-3 (IEEE 802.3) (Ethernet) technology. This part of the IEC 62439 series specifies a recovery protocol based on a ring topology, designed to react deterministically on a single failure of an inter-switch link or switch in the network, under the control of a dedicated media redundancy manager node.

Industrielle Kommunikationsnetze - Hochverfügbare Automatisierungsnetze - Teil 2: Medienredundanz-Protokoll (MRP) (IEC 62439-2:2010)

Réseaux de communication industrielle – Réseaux d’automatisme à haute disponibilité – Partie 2 : Protocol de redondance de média (MRP) (IEC 62439-2:2010)

La CEI 62439-2:2010 concerne les réseaux d'automation à haute disponibilité reposant sur la technologie (Ethernet) ISO/CEI 8802-3 (IEEE 802.3). Elle spécifie un protocole de récupération reposant sur une topologie en anneau, conçu pour réagir de manière déterministe sur une seule défaillance d'une maille inter-étage ou d'un commutateur du réseau, sous le contrôle d'un noeud du gestionnaire de redondance de support dédié. Elle annule et remplace la CEI 62439 publiée en 2008 et constitue une révision technique. Ell inclut les modifications techniques majeures suivantes par rapport à la CEI 62439 (2008):
- ajout d'une méthode de calcul pour le protocole RSTP (Rapid Spanning Tree Protocol, IEEE 802.1Q),
- ajout de deux nouveaux protocoles de redondance: HSR (High-availability Seamless Redundancy) et DRP (Distributed Redundancy Protocol),
- déplacement des Articles 1 à 4 (Introduction, Définitions, Aspects généraux) et des Annexes (Taxinomie, Calcul de disponibilité) dans la CEI 62439-1, qui servent à présent de base aux autres documents,
- déplacement de l'Article 5 (MRP) dans la CEI 62439-2 avec peu de modifications éditoriales,
- déplacement de l'Article 6 (PRP) dans la CEI 62439-3 avec peu de modifications éditoriales,
- déplacement de l'Article 7 (CRP) dans la CEI 62439-4 avec peu de modifications éditoriales, et
- déplacement de l'Article 8 (BRP) dans la CEI 62439-5 avec peu de modifications éditoriales,
- ajout d'une méthode de calcul du temps de reprise maximal du protocole RSTP dans une configuration restreinte (anneau) dans la CEI 62439-1 (Article 8),
- ajout de spécifications du protocole HSR (High-availability Seamless Redundancy), qui partage les principes du protocole PRP dans la CEI 62439-3 (Article 5), et
- introduction du protocole DRP (CEI 62439-6).
Cette publication doit être lue conjointement avec la CEI 62439-1:2010.

Industrijska komunikacijska omrežja za avtomatizacijo z visoko razpoložljivostjo - 2. del: Protokol z redundanco medijev (MRP) (IEC 62439-2:2010)

Serija IEC 62439 velja za omrežja za avtomatizacijo z visoko razpoložljivostjo osnovana na ISO/IEC 8802-3 (IEEE 802.3) (eternet) tehnologiji. Ta del serije IEC 62439 določa obnovitveni protokol, osnovan na topologiji prstana, ki je načrtovan tako, da se odziva svarilno pod nadzorom namenskega nadzornega vozlišča z redundanco medijev pri eni sami napaki povezave inter-stikala ali stikala v omrežju.

General Information

• Status: Withdrawn
• Publication Date: 13-Apr-2010
• Withdrawal Date: 02-Apr-2019
• ICS: 25.040.01 - Industrial automation systems in general
• ICS: 35.110 - Networking
• Technical Committee: MOV - Measuring equipment for electromagnetic quantities
• Current Stage: 9900 - Withdrawal (Adopted Project)
• Start Date: 02-Apr-2019
• Due Date: 25-Apr-2019
• Completion Date: 03-Apr-2019
• Ref Project: EN 62439-2:2010 - Industrial communication networks - High availability automation networks - Part 2: Media Redundancy Protocol (MRP)

Relations

• Replaces: SIST EN 62439:2008 - High availability automation networks
• Effective Date: 29-Jan-2023
• Revised: SIST EN 62439:2008 - High availability automation networks
• Effective Date: 07-Jun-2022

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 62439-2:2010
01-maj-2010
Industrijska komunikacijska omrežja za avtomatizacijo z visoko razpoložljivostjo -
2. del: Protokol z redundanco medijev (MRP) (IEC 62439-2:2010)
Industrial communication networks high availability automation networks - Part 2: Media
Redundancy Protocol (MRP) (IEC 62439-2:2010)
Industrielle Kommunikationsnetze - Hochverfügbare Automatisierungsnetze - Teil 2:
Medienredundanz-Protokoll (MRP) (IEC 62439-2:2010)
Réseaux de communication industrielle – Réseaux d’automatisme à haute disponibilité –
Partie 2 : Protocol de redondance de média (MRP) (IEC 62439-2:2010)
Ta slovenski standard je istoveten z: EN 62439-2:2010
ICS:
25.040.01 Sistemi za avtomatizacijo v Industrial automation
industriji na splošno systems in general
35.110 Omreževanje Networking
SIST EN 62439-2:2010 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 62439-2:2010

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SIST EN 62439-2:2010

EUROPEAN STANDARD
EN 62439-2

NORME EUROPÉENNE
March 2010
EUROPÄISCHE NORM

ICS 25.040; 35.040 Supersedes EN 62439:2008 (partially)


English version


Industrial communication networks -
High availability automation networks -
Part 2: Media Redundancy Protocol (MRP)
(IEC 62439-2:2010)


Réseaux de communication industrielle – Industrielle Kommunikationsnetze -
Réseaux d’automatisme à haute Hochverfügbare Automatisierungsnetze -
disponibilité – Teil 2: Medienredundanz-Protokoll (MRP)
Partie 2 : Protocol de redondance (IEC 62439-2:2010)
de média (MRP)
(CEI 62439-2:2010)




This European Standard was approved by CENELEC on 2010-03-01. CENELEC members are bound to comply
with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and notified
to the Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: Avenue Marnix 17, B - 1000 Brussels


© 2010 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 62439-2:2010 E

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SIST EN 62439-2:2010
EN 62439-2:2010 - 2 -
Foreword
The text of document 65C/583/FDIS, future edition 1 of IEC 62439-2, prepared by SC 65C, Industrial
networks, of IEC TC 65, Industrial-process measurement, control and automation, was submitted to the
IEC-CENELEC parallel vote and was approved by CENELEC as EN 62439-2 on 2010-03-01.
This EN 62439-2 together with EN 62439-1, EN 62439-3, EN 62439-4, EN 62439-5 and EN 62439-6
supersedes EN 62439:2008.
EN 62439-2:2010 includes the following significant technical changes with respect to EN 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 EN 62439-1, which serves now as a base for the other documents,
– moving Clause 5 (MRP) to EN 62439-2 with minor editorial changes,
– moving Clause 6 (PRP) was to EN 62439-3 with minor editorial changes,
– moving Clause 7 (CRP) was to EN 62439-4 with minor editorial changes, and
– moving Clause 8 (BRP) was to EN 62439-5 with minor editorial changes,
– adding a method to calculate the maximum recovery time of RSTP in a restricted configuration (ring)
to EN 62439-1 as Clause 8,
– adding specifications of the HSR (High-availability Seamless Redundancy) protocol, which shares the
principles of PRP to EN 62439-3 as Clause 5, and
– introducing the DRP protocol as EN 62439-6.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent
rights.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2010-12-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2013-03-01
Annex ZA has been added by CENELEC.
__________

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SIST EN 62439-2:2010
- 3 - EN 62439-2:2010
Endorsement notice
The text of the International Standard IEC 62439-2:2010 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:
IEC 61158-2:2007 NOTE  Harmonized as EN 61158-2:2008 (not modified).
IEC 61158-5-10 NOTE  Harmonized as EN 61158-5-10.
IEC 61784-1:2007 NOTE  Harmonized as EN 61784-1:2008 (not modified).
IEC 61784-2:2007 NOTE  Harmonized as EN 61784-2:2008 (not modified).
IEC 62439-3 NOTE  Harmonized as EN 62439-3.
IEC 62439-4 NOTE  Harmonized as EN 62439-4.
IEC 62439-5 NOTE  Harmonized as EN 62439-5.
IEC 62439-6 NOTE  Harmonized as EN 62439-6.
__________

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SIST EN 62439-2:2010
EN 62439-2:2010 - 4 -
Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications

The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.

NOTE  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.

Publication Year Title EN/HD Year

IEC 60050-191 1990 International Electrotechnical Vocabulary - -
(IEV) - Chapter 191: Dependability and quality
of service


IEC 61158-6-10 - Industrial communication networks - Fieldbus EN 61158-6-10 -
specifications -
Part 6-10: Application layer protocol
specification - Type 10 elements


IEC 62439-1 2010 Industrial communication networks - High EN 62439-1 2010
availability automation networks -
Part 1: General concepts and calculation
methods


ISO/IEC 8802-3 2000 Information technology - Telecommunications - -
and information exchange between systems -
Local and metropolitan area networks -
Specific requirements -
Part 3: Carrier sense multiple access with
collision detection (CSMA/CD) access method
and physical layer specifications


IEEE 802.1D 2004 IEEE Standard for Local and Metropoitan - -
Area Networks - Media Access Control (MAC)
Bridges


IEEE 802.1Q - IEEE Standard for Local and Metropolitan - -
Area Networks - Virtual Bridged Local Area
Networks

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SIST EN 62439-2:2010
IEC 62439-2
®
Edition 1.0 2010-02
INTERNATIONAL
STANDARD


Industrial communication networks – High availability automation networks –
Part 2: Media Redundancy Protocol (MRP)



INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
XB
ICS 25.040, 35.040 ISBN 2-8318-1081-2
® Registered trademark of the International Electrotechnical Commission

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SIST EN 62439-2:2010
– 2 – 62439-2 © IEC:2010(E)
CONTENTS
FOREWORD.5
INTRODUCTION.7
1 Scope.8
2 Normative references .8
3 Terms, definitions, abbreviations, acronyms, and conventions.8
3.1 Terms and definitions .8
3.2 Abbreviations and acronyms.8
3.3 Conventions .9
4 MRP Overview.9
5 MRP Media redundancy behavior .10
5.1 Ring ports .10
5.2 Media Redundancy Manager (MRM).11
5.3 Media Redundancy Client (MRC).12
5.4 Redundancy domain.12
5.5 Usage with diagnosis and alarms .12
5.6 Ring diagnosis.13
5.7 Multiple MRM in a single ring .13
5.8 BLOCKED not supported (option) .13
6 MRP Class specification .14
6.1 General .14
6.2 Template .14
6.3 Attributes.14
7 MRP service specification.17
7.1 Start MRM.17
7.2 Stop MRM .18
7.3 State Change .19
7.4 Start MRC .20
7.5 Stop MRC.21
7.6 Read MRM .22
7.7 Read MRC .24
8 MRP protocol specification .25
8.1 PDU description .25
8.1.1 Basic data types .25
8.1.2 DLPDU abstract syntax reference.25
8.1.3 Coding of the DLPDU field SourceAddress .26
8.1.4 Coding of the DLPDU field DestinationAddress.26
8.1.5 Coding of the field TagControlInformation.27
8.1.6 Coding of the field LT .27
8.1.7 MRP APDU abstract syntax .27
8.1.8 Coding of the field MRP_TLVHeader .28
8.1.9 Coding of the field MRP_Version .29
8.1.10 Coding of the field MRP_SequenceID .29
8.1.11 Coding of the field MRP_SA .29
8.1.12 Coding of the field MRP_Prio.29
8.1.13 Coding of the field MRP_PortRole .29
8.1.14 Coding of the field MRP_RingState.29

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SIST EN 62439-2:2010
62439-2 © IEC:2010(E) – 3 –
8.1.15 Coding of the field MRP_Interval .30
8.1.16 Coding of the field MRP_Transition .30
8.1.17 Coding of the field MRP_TimeStamp .30
8.1.18 Coding of the field MRP_Blocked.30
8.1.19 Coding of the field MRP_ManufacturerOUI .31
8.1.20 Coding of the field MRP_ManufacturerData .31
8.1.21 Coding of the field MRP_DomainUUID.31
8.2 Protocol machines.31
8.2.1 MRM protocol machine .31
8.2.2 MRC protocol machine .41
8.2.3 MRM and MRC functions .48
8.2.4 FDB clear timer .51
8.2.5 Topology change timer .51
9 MRP installation, configuration and repair .51
9.1 Ring port parameters.51
9.2 Ring topology parameters.52
9.3 MRM parameters.52
9.4 MRC parameters and constraints .52
9.5 Calculation of MRP ring recovery time.53
9.5.1 Overview .53
9.5.2 Deduction of formula .53
9.5.3 Worst case calculation for recovery time of 10 ms .55
9.5.4 Worst case calculation for 50 devices .56
10 MRP Management Information Base (MIB) .56
10.1 General .56
10.2 MRP MIB with a monitoring view .56
10.3 MRP MIB with a management and monitoring view.64
Bibliography.73

Figure 1 – MRP stack .10
Figure 2 – MRP ring topology with one manager and clients .11
Figure 3 – MRP open ring with MRM.11
Figure 4 – MRP ring with more than one MRM .13
Figure 5 – MRP protocol machine for MRM.32
Figure 6 – MRP protocol machine for MRC .42

Table 1 – MRP Start MRM .17
Table 2 – MRP Stop MRM.18
Table 3 – MRP Change State.19
Table 4 – MRP Start MRC.20
Table 5 – MRP Stop MRC .21
Table 6 – MRP Read MRM .22
Table 7 – MRP Read MRC.24
Table 8 – MRP DLPDU syntax for ISO/IEC 8802-3 (IEEE 802.3).26
Table 9 – MRP OUI.26
Table 10 – MRP MulticastMACAddress.27

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SIST EN 62439-2:2010
– 4 – 62439-2 © IEC:2010(E)
Table 11 – MRP TagControlInformation.Priority field.27
Table 12 – MRP LT field .27
Table 13 – MRP APDU syntax .28
Table 14 – MRP Substitutions.28
Table 15 – MRP_TLVHeader.Type.28
Table 16 – MRP_Version .29
Table 17 – MRP_Prio.29
Table 18 – MRP_PortRole .29
Table 19 – MRP_RingState.30
Table 20 – MRP_Interval .30
Table 21 – MRP_Transition.30
Table 22 – MRP_TimeStamp .30
Table 23 – MRP_Blocked.31
Table 24 – MRP_DomainUUID.31
Table 25 – MRP Local variables of MRM protocol machine .33
Table 26 – MRM State machine .34
Table 27 – MRP Local variables of MRC protocol machine .43
Table 28 – MRC state machine .43
Table 29 – MRP functions.49
Table 30 – MRP FDB clear timer.51
Table 31 – MRP topology change timer.51
Table 32 – MRP Network/Connection parameters .52
Table 33 – MRP MRM parameters .52
Table 34 – MRP MRC parameters.53

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SIST EN 62439-2:2010
62439-2 © IEC:2010(E) – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

INDUSTRIAL COMMUNICATION NETWORKS –
HIGH AVAILABILITY AUTOMATION NETWORKS –

Part 2: Media Redundancy Protocol (MRP)


FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
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with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
International Standard 62439-2 has been prepared by subcommittee 65C: Industrial Networks,
of IEC technical committee 65: Industrial-process measurement, control and automation.
This standard cancels and replaces IEC 62439 published in 2008. This first edition constitutes
a technical revision.
This edition 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) was to IEC 62439-3 with minor editorial changes,
– moving Clause 7 (CRP) was to IEC 62439-4 with minor editorial changes, and

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SIST EN 62439-2:2010
– 6 – 62439-2 © IEC:2010(E)
– moving Clause 8 (BRP) was 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.
The text of this standard is based on the following documents:
FDIS Report on voting
65C/583/FDIS 65C/589/RVD

Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This International Standard is to be read in conjunction with IEC 62439-1:2010, Industrial
communication networks – High availability automation networks – Part 1: General concepts
and calculation methods.
A list of the IEC 62439 series can be found, under the general title Industrial communication
networks – High availability automation networks, on the IEC website.
This publication has been drafted in accordance with ISO/IEC Directives, Part 2.
The committee has decided that the contents of this amendment and the base publication will
remain unchanged until the stability date indicated on the IEC web site under
"http://webstore.iec.ch" in the data related to the specific publication. At this date, the
publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this standard may be issued at a later date.

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SIST EN 62439-2:2010
62439-2 © IEC:2010(E) – 7 –
INTRODUCTION
The IEC 62439 series specifies relevant principles for high availability networks that meet the
requirements for industrial automation networks.
In the fault-free state of the network, the protocols of the IEC 62439 series provide
ISO/IEC 8802-3 (IEEE 802.3) compatible, reliable data communication, and preserve
determinism of real-time data communication. In cases of fault, removal, and insertion of a
component, they provide deterministic recovery times.
These protocols retain fully the typical Ethernet communication capabilities as used in the
office world, so that the software involved remains applicable.
The market is in need of several network solutions, each with different performance
characteristics and functional capabilities, matching diverse application requirements. These
solutions support different redundancy topologies and mechanisms which are introduced in
IEC 62439-1 and specified in the other Parts of the IEC 62439 series. IEC 62439-1 also
distinguishes between the different solutions, giving guidance to the user.
The IEC 62439 series follows the general structure and terms of IEC 61158 series.
The International Electrotechnical Commission (IEC) draws attention to the fact that it is
claimed that compliance with this document may involve the use of a patent concerning ring
protocol given in Clause 5.
IEC takes no position concerning the evidence, validity and scope of this patent right.
The holder of this patent right has assured the IEC that he/she is willing to negotiate licences
either free of charge or under reasonable and non-discriminatory terms and conditions with
ap
...