1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationIndustrial communication networks High availabilityautomation networksPart 2: Media Redundancy Protocol (MRP)BS EN 62439-2:2010National forewordThis British Standard is the UK im
2、plementation of EN 62439-2:2010. It isidentical to IEC 62439-2:2010. Together with BS EN 62439-1:2010, BS EN62439-3:2010, BS EN 62439-4:2010, BS EN 62439-5:2010 and BS EN 62439-6:2010, it supersedes BS EN 62439:2008 which is withdrawn.The UK participation in its preparation was entrusted to Technica
3、l CommitteeAMT/7, Industrial communications: process measurement and control, including fieldbus.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions of acontract. Users are responsi
4、ble for its correct application. BSI 2010ISBN 978 0 580 70826 8ICS 25.040.40; 35.040; 35.110Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of the StandardsPolicy and Strategy Committee on 30 June 2010.Amendments
5、 issued since publicationAmd. No. Date Text affectedBRITISH STANDARDBS EN 62439-2:2010EUROPEAN STANDARD EN 62439-2 NORME EUROPENNE EUROPISCHE NORM March 2010 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektro
6、technische 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 ICS 25.040; 35.040 Supersedes EN 62439:2008 (partially)English version Industrial comm
7、unication networks - High availability automation networks - Part 2: Media Redundancy Protocol (MRP) (IEC 62439-2:2010) Rseaux de communication industrielle Rseaux dautomatisme haute disponibilit Partie 2 : Protocol de redondance de mdia (MRP) (CEI 62439-2:2010) Industrielle Kommunikationsnetze - Ho
8、chverfgbare Automatisierungsnetze - Teil 2: Medienredundanz-Protokoll (MRP) (IEC 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
9、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,
10、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, Bulg
11、aria, 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. BS EN 6243
12、9-2:2010EN 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 6
13、2439-2 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 pr
14、otocol, 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
15、 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
16、 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 intr
17、oducing 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 wh
18、ich 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. _ BS EN 62439-2:2010- 3
19、 - 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 Ha
20、rmonized 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
21、as EN 62439-4. IEC 62439-5 NOTE Harmonized as EN 62439-5. IEC 62439-6 NOTE Harmonized as EN 62439-6. _ BS EN 62439-2:2010EN 62439-2:2010 - 4 - Annex ZA (normative) Normative references to international publications with their corresponding European publications The following referenced documents are
22、 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, indic
23、ated 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 specifications - Part 6-10: Applicatio
24、n layer protocol specification - Type 10 elements EN 61158-6-10 - IEC 62439-1 2010 Industrial communication networks - High availability automation networks - Part 1: General concepts and calculation methods EN 62439-1 2010 ISO/IEC 8802-3 2000 Information technology - Telecommunications and informat
25、ion 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 Ac
26、cess Control (MAC) Bridges - - IEEE 802.1Q - IEEE Standard for Local and Metropolitan Area Networks - Virtual Bridged Local Area Networks - - BS EN 62439-2:2010 2 62439-2 IEC:2010(E) CONTENTS INTRODUCTION.7 1 Scope.8 2 Normative references .8 3 Terms, definitions, abbreviations, acronyms, and conven
27、tions8 3.1 Terms and definitions 8 3.2 Abbreviations and acronyms8 3.3 Conventions 9 4 MRP Overview9 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 domain12 5.5 Usage with diagnosis and alarms 12 5.6 Rin
28、g 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 MRC21 7.6 Read MRM
29、 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 reference25 8.1.3 Coding of the DLPDU field SourceAddress 26 8.1.4 Coding of the DLPDU field DestinationAddress26 8.1.5 Coding of the field TagControlInformation27 8.1.6
30、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_SequenceID29 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_Po
31、rtRole .29 8.1.14 Coding of the field MRP_RingState29 BS EN 62439-2:201062439-2 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 MR
32、P_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 in
33、stallation, configuration and repair 51 9.1 Ring port parameters.51 9.2 Ring topology parameters52 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
34、 of 10 ms .55 9.5.4 Worst case calculation for 50 devices56 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 view64 Bibliography73 Figure 1 MRP stack .10 Figure 2 MRP ring topology with one manager and
35、 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 State19 Table 4 MRP Start MRC.20 Table 5 MRP Stop MRC.21
36、Table 6 MRP Read MRM .22 Table 7 MRP Read MRC24 Table 8 MRP DLPDU syntax for ISO/IEC 8802-3 (IEEE 802.3).26 Table 9 MRP OUI.26 Table 10 MRP MulticastMACAddress.27 BS 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
37、 syntax 28 Table 14 MRP Substitutions.28 Table 15 MRP_TLVHeader.Type28 Table 16 MRP_Version 29 Table 17 MRP_Prio29 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_Blocked31 Table 24 MRP_DomainUUID31 Table 2
38、5 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 para
39、meters .52 Table 33 MRP MRM parameters 52 Table 34 MRP MRC parameters.53 BS EN 62439-2:201062439-2 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 th
40、e 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
41、 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 r
42、equirements. 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
43、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
44、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 applicants throughout the world. In this respect, the stateme
45、nt of the holder of this patent right is registered with IEC. Information may be obtained from: Siemens AG A setting one ring port in FORWARDING state and the other ring port in BLOCKED state if it receives its own MRP_Test frames (this means that the ring is closed, see Figure 2); setting both ring
46、 ports in FORWARDING state if it does not receive its own MRP_Test frames within a configured time according to MRP_TSTdefaultT, MRP_TSTshortT and MRP_TSTNRmax in Table 33 (this means that the ring is open, see Figure 3). MRMMRCMRCMRC MRCswitchingend nodeend nodeend nodeend nodeend nodeend nodeend n
47、odeend nodeend nodeend nodeend nodeend nodeend nodeend nodeLANFigure 3 MRP open ring with MRM The following mechanism supports synchronization between MRM and MRC in ring topology changes. IEC 351/10 IEC 352/10 BS EN 62439-2:2010 12 62439-2 IEC:2010(E) The MRM shall indicate changes in the ring stat
48、e to the MRCs by means of MRP_TopologyChange frames. The MRM shall not forward MRP specific frames (MRP_Test frames, MRP_TopologyChange frames, MRP_LinkChange frames) between its ring ports. If the MRM receives an MRP_LinkUp or MRP_LinkDown frame, then the MRM shall reduce its test monitoring time a
49、ccording to Table 33 to accelerate the detection of the open ring. When the open ring is detected then the MRM shall send the MRP_TopologyChange frames through both its ring ports. Optionally the MRM shall send the MRP_TopologyChange frames through its ring ports. This option is selected by setting the parameter REACT_ON_LINK_CHANGE, see Table 26. The MRM shall send to the MRCs an MRP
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