1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationIndustrial communication networks High availabilityautomation networksPart 4: Cross-network Redundancy Protocol (CRP)BS EN 62439-4:2010+A1:2012National forewordThis British Stand
2、ard is the UK implementation of EN 62439-4:2010+A1:2012.The UK participation in its preparation was entrusted to Technical CommitteeAMT/7, Industrial communications: process measurement and control, including fieldbus.A list of organizations represented on this committee can be obtained onrequest to
3、 its secretary.This publication does not purport to include all the necessary provisions of acontract. Users are responsible for its correct application.ISBN 978 0 580 73808 1ICS 25.040.40; 35.040; 35.110Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Sta
4、ndard was published under the authority of the StandardsPolicy and Strategy Committee on 30 June 2010.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 62439-4:2010+A1:2012A1:2012. It is identical to IEC 62439-4:2010+ The British Standards Institution 2012. Publis
5、hed by BSI Standards Limited 2012.31 May 2012 Implementation of IEC amendment 1:2012 with CENELECendorsement A1:2012. Clause 8.4.1.1 and Table 7 have beenamended.BS EN 62439-4:2010, which is withdrawn.It supersedes EUROPEAN STANDARD EN 62439-4:2010+A1NORME EUROPENNE EUROPISCHE NORM CENELEC European
6、Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr 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 CENEL
7、EC members. Ref. No. EN 62439-4:2010 E ICS 25.040; 35.040 English version Industrial communication networks - High availability automation networks - Part 4: Cross-network Redundancy Protocol (CRP) (IEC 62439-4:2010) Rseaux de communication industrielle Rseaux dautomatisme haute disponibilit Partie
8、4 : Protocole de redondance transrseau (CRP) (CEI 62439-4:2010) Industrielle Kommunikationsnetze - Hochverfgbare Automatisierungsnetze - Teil 4: Redundanz-Protokoll fr vermaschte Netze (CRP) (IEC 62439-4:2010) This European Standard was approved by CENELEC on 2010-03-01. CENELEC members are bound to
9、 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 Centra
10、l 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 stat
11、us 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, N
12、orway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. April 2012 - 2 - Foreword The text of document 65C/583/FDIS, future edition 1 of IEC 62439-4, prepared by SC 65C, Industrial networks, of IEC TC 65, Industrial-process measurement, control and au
13、tomation, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 62439-4 on 2010-03-01. This EN 62439-4 together with EN 62439-1, EN 62439-2, EN 62439-3, EN 62439-5 and EN 62439-6 supersedes EN 62439:2008. EN 62439-4:2010 includes the following significant technical changes
14、 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, gener
15、al 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
16、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
17、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
18、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
19、to be withdrawn (dow) 2013-03-01 Annex ZA has been added by CENELEC. _ BS EN 62439-4:2010+A1:2012 EN 62439-4:2010+A1:2012 (E)- 3 - Endorsement notice The text of the International Standard IEC 62439-4:2010 was approved by CENELEC as a European Standard without any modification. In the official versi
20、on, for Bibliography, the following notes have to be added for the standards indicated: IEC 61158 series NOTE Harmonized in EN 61158 series (not modified). IEC 62439-2 NOTE Harmonized as EN 62439-2. IEC 62439-3 NOTE Harmonized as EN 62439-3. IEC 62439-5 NOTE Harmonized as EN 62439-5. IEC 62439-6 NOT
21、E Harmonized as EN 62439-6. _ Foreword to amendment A1The text of document 65C/672/FDIS, future edition 1 of IEC 62439-4:2010/A1, 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 appro
22、ved by CENELEC as EN 62439-4:2010/A1:2012. The following dates are fixed: latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2012-12-30 latest date by which the national standards conflicting with the doc
23、ument have to be withdrawn (dow) 2015-03-30 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. Endorsement notice The text of the Interna
24、tional Standard IEC 62439-4:2010/A1:2012 was approved by CENELEC as a European Standard without any modification. BS EN 62439-4:2010+A1:2012 EN 62439-4:2010+A1:2012 (E)- 4 - Annex ZA (normative) Normative references to international publications with their corresponding European publications The fol
25、lowing 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
26、 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 62439-1 2010 Industrial communication networks - High availability a
27、utomation networks - Part 1: General concepts and calculation methods EN 62439-1 2010 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 c
28、ollision detection (CSMA/CD) access method and physical layer specifications - - BS EN 62439-4:2010+A1:2012 EN 62439-4:2010+A1:2012 (E) 2 CONTENTS INTRODUCTION.6 1 Scope.7 2 Normative references .7 3 Terms, definitions, abbreviations, acronyms, and conventions7 3.1 Terms and definitions 7 3.2 Abbrev
29、iations and acronyms7 3.3 Conventions 7 4 CRP overview.8 5 CRP nodes.8 6 CRP LAN topology .8 7 CRP key components .10 7.1 CRP general protocol operation.10 7.1.1 Doubly-attached nodes (DANCs) .10 7.1.2 Singly attached nodes .11 7.2 CRP statistics11 7.3 CRP Network_Status_Table 12 7.4 CRP recovery ti
30、me 15 7.4.1 Recovery time calculation15 7.4.2 Maximum repair time .16 7.5 CRP multicast messages.16 7.5.1 Sending.16 7.5.2 Receiving 16 7.6 CRP unicast messages .16 7.6.1 Sending a frame 16 7.6.2 Receiving a frame17 7.7 CRP redundancy information.17 7.8 CRP redundancy statistics.17 8 CRP protocol17
31、8.1 CRP singly attached node .17 8.2 CRP doubly attached node 17 8.3 CRP Installation, configuration and repair .17 8.4 CRP LRE model attributes.18 8.4.1 Attribute specification 18 8.4.2 Impact of LRE configuration attributes .22 8.5 CRP encoding of the DiagnosticFrame 23 8.6 CRP Encoding of the Ann
32、unciationFrame 24 8.7 CRP common protocol.26 8.7.1 AnnunciationFrames26 8.7.2 DiagnosticFrames26 8.7.3 Detection of duplicate Node_Index 27 8.7.4 Detection of duplicate Node_Name27 8.7.5 Failure detection based on arrival of DiagnosticFrames.27 8.7.6 Status array entries .28 8.7.7 Other failure dete
33、ction .28 8.8 CRP operational messages .28 BS EN 62439-4:2010+A1:2012 EN 62439-4:2010+A1:2012 (E) 3 8.8.1 Load balancing 28 8.8.2 LAN and port maintenance 28 8.8.3 Selecting transmission path.29 8.8.4 Selecting reception adapter .30 8.8.5 Crossed_cable_status .30 8.8.6 Configured parameters 30 8.9 C
34、RP services 31 8.9.1 Configuration options and services 31 8.9.2 LAN redundancy service specification .31 9 CRP Management Information Base (MIB) .38 Bibliography41 Figure 1 CRP stack architecture 8 Figure 2 CRP single LAN topography.9 Figure 3 CRP double LAN topology9 Figure 4 CRP DiagnosticFrame p
35、air approach .10 Figure 5 CRP example system .11 Table 1 CRP example Network_Status_Table for node 3 .11 Table 2 CRP Network_Status_Table for singly connected nodes13 Table 3 CRP Network_Status_Table for DANC 14 Table 4 CRP Path_Status_Sets .21 Table 5 CRP example of a Path_Status_Set 21 Table 6 CRP
36、 configuration attributes impact on LAN operation 22 Table 7 CRP DiagnosticFrame format 23 Table 8 CRP AnnunciationFrame .24 Table 9 CRP unicast destination address handling.29 Table 10 CRP configuration parameters.30 Table 11 CRP Set_Assignment_Info service parameters31 Table 12 CRP Get_Redundancy_
37、Info service.33 Table 13 CRP Set_Redundancy_Info service .35 Table 14 CRP Get_Redundancy_Statistics service 37 BS EN 62439-4:2010+A1:2012 EN 62439-4:2010+A1:2012 (E) 6 INTRODUCTION The IEC 62439 series specifies relevant principles for high availability networks that meet the requirements for indust
38、rial 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, the
39、y 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
40、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, giv
41、ing 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 a full-duplex E
42、thernet in which each device periodically transmits a message representing its connectivity to the other devices , allowing them to choose a redundant path in case of failure, given in 7.1 and 7.3. IEC takes no position concerning the evidence, validity and scope of this patent right. The holder of
43、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 applicants throughout the world. In this respect, the statement of the holder of this patent right is registered with IEC. Inf
44、ormation may be obtained from: Fieldbus Foundation 9005 Mountain Ridge Drive Bowie Bldg Suite 190 Austin, TX 78759 USA Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights other than those identified above. IEC shall not be held respons
45、ible for identifying any or all such patent rights. ISO (www.iso.org/patents) and IEC (http:/www.iec.ch/tctools/patent_decl.htm) maintain on-line data bases of patents relevant to their standards. Users are encouraged to consult the data bases for the most up to date information concerning patents.
46、BS EN 62439-4:2010+A1:2012 EN 62439-4:2010+A1:2012 (E) 7 INDUSTRIAL COMMUNICATION NETWORKS HIGH AVAILABILITY AUTOMATION NETWORKS Part 4: Cross-network Redundancy Protocol (CRP) 1 Scope The IEC 62439 series is applicable to high-availability automation networks based on the ISO/IEC 8802-3 (IEEE 802.3
47、) (Ethernet) technology. This part of the IEC 62439 series 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
48、 node individually. The cross-network connection capability enables single attached end nodes to be connected on either of the two networks. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited
49、applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60050-191, International Electrotechnical Vocabulary Chapter 191: Dependability and quality of service IEC 62439-1:2010, Industrial communication networks High availability automation networks Part 1: General concepts and calculation methods ISO/IEC 8802-3:2000, Information technology Telecommunications and information exchang
