1、 IEC 62439-6Edition 1.0 2010-02INTERNATIONAL STANDARD Industrial communication networks High availability automation networks Part 6:Distributed Redundancy Protocol(DRP)IEC 62439-6:2010(E)colourinsideLICENSED TO MECON LIMITED-RANCHI/BANGALORE,FOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK S
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9、1 Fax:+41 22 919 03 00 LICENSED TO MECON LIMITED-RANCHI/BANGALORE,FOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.IEC 62439-6Edition 1.0 2010-02INTERNATIONAL STANDARD Industrial communication networks High availability automation networks Part 6:Distributed Redundancy Protocol(
10、DRP)INTERNATIONAL ELECTROTECHNICAL COMMISSION XB ICS 25.040,35.040 PRICE CODEISBN 2-8318-1081-6 Registered trademark of the International Electrotechnical Commission colourinsideLICENSED TO MECON LIMITED-RANCHI/BANGALORE,FOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.2 62439-6
11、 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 Sin
12、gle 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 procedur
13、e.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
14、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.
15、35 9.4.3 Encoding of VLAN.35 9.4.4 Ethertype.35 LICENSED TO MECON LIMITED-RANCHI/BANGALORE,FOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.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 S
16、ervice 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 rec