SIST EN 62439-6:2010

SLOVENSKI STANDARD
SIST EN 62439-6:2010
01-maj-2010
Industrijska komunikacijska omrežja za avtomatizacijo z visoko razpoložljivostjo -
6. del: Protokol porazdeljene redundance (DRP) (IEC 62439-6:2010)
Industrial communication networks high availability automation networks - Part 6:
Distributed Redundancy Protocol (DRP) (IEC 62439-6:2010)
Industrielle Kommunikationsnetze - Hochverfügbare Automatisierungsnetze - Teil 6:
Protokoll für verteilte Redundanz (DRP) (IEC 62439-6:2010)
Réseaux de communication industrielle - Réseaux d’automatisme à haute disponibilité -
Partie 6 :Protocole de redondance distribuée (DRP) (CEI 62439-6:2010)
Ta slovenski standard je istoveten z: EN 62439-6:2010
ICS:
25.040.01 Sistemi za avtomatizacijo v Industrial automation
industriji na splošno systems in general
35.110 Omreževanje Networking
SIST EN 62439-6:2010 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 62439-6:2010

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SIST EN 62439-6:2010

EUROPEAN STANDARD
EN 62439-6

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 6: Distributed Redundancy Protocol (DRP)
(IEC 62439-6:2010)


Réseaux de communication industrielle - Industrielle Kommunikationsnetze -
Réseaux d’automatisme à haute Hochverfügbare Automatisierungsnetze -
disponibilité - Teil 6: Protokoll für verteilte Redundanz
Partie 6 :Protocole de redondance (DRP)
distribuée (DRP) (IEC 62439-6:2010)
(CEI 62439-6:2010)




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 62439-6:2010 E

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SIST EN 62439-6:2010
EN 62439-6:2010 - 2 -
Foreword
The text of document 65C/583/FDIS, future edition 1 of IEC 62439-6, 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 62439-6 on 2010-03-01.
This EN 62439-6 together with EN 62439-1, EN 62439-2, EN 62439-3, EN 62439-4 and EN 62439-5
supersedes EN 62439:2008.
EN 62439-6:2010 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 62439-6:2010
- 3 - EN 62439-6:2010
Endorsement notice
The text of the International Standard IEC 62439-6:2010 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 62439-2 NOTE  Harmonized as EN 62439-2.
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.
__________

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SIST EN 62439-6:2010
EN 62439-6:2010 - 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 - International Electrotechnical Vocabulary - -
(IEV) - Chapter 191: Dependability and quality
of service



IEC 61158 Series Fieldbus standard for use in industrial control EN 61158 Series
systems


IEC 61588 2009 Precision clock synchronization protocol for - -
networked measurement and control systems


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


ISO/IEC/TR 8802-1 - Information technology - Telecommunications - -
and information exchange between systems -
Local and metropolitan area networks -
Specific requirements -
Part 1: Overview of Local Area Network
Standards

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 62439-6:2010

IEC 62439-6
®
Edition 1.0 2010-02
INTERNATIONAL
STANDARD

colour
inside

Industrial communication networks – High availability automation networks –
Part 6: Distributed Redundancy Protocol (DRP)



INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
XB
ICS 25.040, 35.040 ISBN 2-8318-1081-6
® Registered trademark of the International Electrotechnical Commission

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SIST EN 62439-6:2010
– 2 – 62439-6 © 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.9
3.3 Conventions .9
4 Overview .9
4.1 Principles .9
4.2 Ring ports .10
4.3 DRP switch node.10
4.4 Single ring topology redundancy.11
4.5 Double ring topology redundancy .11
4.6 Configuration.12
4.6.1 Overview .12
4.6.2 Manufacturer configuration .12
4.6.3 Communication configuration.12
4.6.4 Application configuration .13
4.7 Start up .13
5 DRP communications .13
5.1 Overview .13
5.2 Communication procedure.15
5.3 Fault detection and recovery .18
5.3.1 General .18
5.3.2 Handling in a single ring network .19
5.3.3 Handling in a double ring network.20
5.4 Repairing the inter-switch link fault.21
5.5 Repairing time synchronization fault .21
5.6 Inserting a repaired switch node.22
5.7 Inserting a new switch node .23
6 DRP class specification .23
7 DRP attributes.24
8 DRP services .27
8.1 Read .27
8.2 Write .30
9 DRP protocol specification.32
9.1 Basic types encoding .32
9.2 ErrorDescription encoding .32
9.3 Encoding of DRP Class .33
9.4 PDU description .34
9.4.1 Encoding of DRP DLPDU .34
9.4.2 Encoding of DLSDU.35
9.4.3 Encoding of VLAN .35
9.4.4 Ethertype.35

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SIST EN 62439-6:2010
62439-6 © IEC:2010(E) – 3 –
9.4.5 Encoding of DRP PDU.35
9.4.6 Encoding of DRP_DATA .36
9.4.7 Encoding of Read Service .40
9.4.8 Encoding of Write Service primitives.42
9.5 Protocol machine.44
9.5.1 Switch node states description .44
9.5.2 Protocol State Machine description.44
9.5.3 State transitions .45
9.5.4 Function descriptions.52
Bibliography.64

Figure 1 – DRP communication model .10
Figure 2 – Single ring topology redundancy .11
Figure 3 – Double ring topology redundancy .12
Figure 4 – DRP communication procedure .14
Figure 5 – Inserting a new switch node into the DRP system .14
Figure 6 – Fault detection and recovery .15
Figure 7 – Fault detection and recovery of single ring topology redundancy.19
Figure 8 – Single inter-switch link fault detection and recovery of double ring topology
redundancy.20
Figure 9 – Double inter-switch link fault detection and recovery of double ring topology
redundancy.21
Figure 10 – Inserting a repaired switch node.22
Figure 11 – DRP protocol state machine .45

Table 1 – Relationship between required recovery time and the TargetTimeSyncClass.22
Table 2 – Parameters of Read service .27
Table 3 – Parameters of Write service .30
Table 4 – Error Type definition.32
Table 5 – Error Code definition .33
Table 6 – Definition of DRP Class.33
Table 7 – DRP OUI .34
Table 8 – DRP MulticastMACAddress .35
Table 9 – Encoding of DLSDU .35
Table 10 – Encoding of DRP PDU.35
Table 11 – DRP_Type definition .35
Table 12 – Encoding of RingCheck frame .36
Table 13 – Encoding of DeviceAnnunciation frame.37
Table 14 – Encoding of RingChange frame .39
Table 15 – Encoding of LinkCheck frame .39
Table 16 – Encoding of LinkAlarm frame.40
Table 17 – Encoding of LinkChange frame.40
Table 18 – Encoding of Read Request .41
Table 19 – Encoding of Read Service Positive Response .41
Table 20 – Encoding of Read Service Negative Response .42

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SIST EN 62439-6:2010
– 4 – 62439-6 © IEC:2010(E)
Table 21 – Encoding of Write Request .43
Table 22 – Encoding of Write Service Positive Response.43
Table 23 – Encoding of Write Service Negative Response .43
Table 24 – DRP state transitions.46
Table 25 – SetRingPortState() descriptions .52
Table 26 – LoadRingPortState() descriptions .52
Table 27 – WriteSucceed() descriptions.52
Table 28 – SynchronizationFinished() descriptions .53
Table 29 – ActivePortLinkState() descriptions.53
Table 30 – StandbyPortLinkState() descriptions.53
Table 31 – ConfigureInfo() descriptions .53
Table 32 – DRPSendTimer() descriptions .54
Table 33 – SendRingChange() descriptions .54
Table 34 – ForwardingRingCheck() descriptions .54
Table 35 – AnnunciationBlockingPort() descriptions.54
Table 36 – LocalDRPSequenceIDSmaller() descriptions .55
Table 37 – RecvAnnunciationWithinTimeLimit() descriptions.55
Table 38 – RecvLinkCheckWithinTimeLimit() descriptions.55
Table 39 – NoLocalLinkFault() descriptions .55
Table 40 – RecvLinkAlarm() descriptions .56
Table 41 – Clear_FDB() descriptions .56
Table 42 – ChangeRingState() descriptions .56
Table 43 – BlockingPortSelect() descriptions .56
Table 44 – SendLinkChange() descriptions .57
Table 45 – DRPSequenceIDCompare() descriptions .57
Table 46 – ChangePortState() descriptions.57
Table 47 – ChangeDoublePortState() descriptions .57
Table 48 – LocalSendRingCheck() descriptions .58
Table 49 – DRPKeyParaConfigure() descriptions .58
Table 50 – CheckMACAddress() descriptions .58
Table 51 – SetDRPKeyPara() descriptions.58
Table 52 – SendDeviceAnnunciation() descriptions.59
Table 53 – FaultRecvRingCheck() descriptions .59
Table 54 – RecordDeviceState() descriptions .59
Table 55 – DrpRecvMsg() descriptions .59
Table 56 – SendLinkAlarm() descriptions .60
Table 57 – TimeUnsynchronization() descriptions .60
Table 58 – PassiveMasterState() descriptions .60
Table 59 – SearchDeviceState() descriptions.60
Table A.1 – An example of parameters setting for DRP Class .62
Table A.2 – Parameters for calculation of recovery time.63

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SIST EN 62439-6:2010
62439-6 © IEC:2010(E) – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

INDUSTRIAL COMMUNICATION NETWORKS –
HIGH AVAILABILITY AUTOMATION NETWORKS –

Part 6: Distributed Redundancy Protocol (DRP)


FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
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2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
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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 62439-6 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,

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SIST EN 62439-6:2010
– 6 – 62439-6 © IEC:2010(E)
– moving Clause 7 (CRP) was to IEC 62439-4 with minor editorial changes, and
– 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
...