IEC 62439:2008

High availability automation networks

IEC 62439:2008(E) is applicable to high-availability automation networks based on the ISO/IEC 8802-3 (Ethernet) technology. It specifies:
- a classification scheme for network characteristics (see Annex A);
- a methodology for estimating network availability (see Annex B);
- a set of communication protocols that realize high availability automation networks via the use of redundancy and that can be used in a variety of applications.

General Information

• Status: Replaced
• Publication Date: 13-May-2008
• ICS: 25.040.40 - Industrial process measurement and control
• ICS: 35.100.05 - Multilayer applications
• Technical Committee: SC 65C - Industrial networks
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 26-Feb-2010

Relations

• Replaced By: IEC 62439-3:2010 - Industrial communication networks - High availability automation networks - Part 3: Parellel Redundancy Protocol (PRP) and High-availability Seamless Redundancy (HSR)
• Effective Date: 05-Sep-2023
• Replaced By: IEC 62439-1:2010 - Industrial communication networks - High availability automation networks - Part 1: General concepts and calculation methods
• Effective Date: 05-Sep-2023
• Replaced By: IEC 62439-4:2010 - Industrial communication networks - High availability automation networks - Part 4: Cross-network Redundancy Protocol (CRP)
• Effective Date: 05-Sep-2023
• Replaced By: IEC 62439-5:2010 - Industrial communication networks - High availability automation networks - Part 5: Beacon Redundancy Protocol (BRP)
• Effective Date: 05-Sep-2023
• Replaced By: IEC 62439-2:2010 - Industrial communication networks - High availability automation networks - Part 2: Media Redundancy Protocol (MRP)
• Effective Date: 05-Sep-2023
• Replaced By: IEC 62439-6:2010 - Industrial communication networks - High availability automation networks - Part 6: Distributed Redundancy Protocol (DRP)
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 62439
Edition 1.0 2008-05
INTERNATIONAL
STANDARD
High availability automation networks

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IEC 62439
Edition 1.0 2008-05
INTERNATIONAL
STANDARD
High availability automation networks

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
XH
ICS 25.040; 35.040 ISBN 2-8318-9765-3

– 2 – 62439 © IEC:2008(E)
CONTENTS
FOREWORD.8

INTRODUCTION.10

1 Scope.11

2 Normative references .11

3 Terms, definitions, abbreviated terms, acronyms, and conventions.12

3.1 Terms and definitions .12

3.2 Abbreviated terms and acronyms .19

3.3 Conventions .21
3.3.1 General conventions.21
3.3.2 Conventions for state machine definitions.21
3.3.3 Conventions for PDU specification.21
3.4 Reserved network addresses .21
4 Concepts for high availability automation networks.22
4.1 Characteristics of application of automation networks.22
4.1.1 Resilience in case of failure.22
4.1.2 Classes of network redundancy .23
4.1.3 Redundancy maintenance .23
4.1.4 Comparison and indicators .23
4.2 Generic network system .25
4.2.1 Network elements.25
4.2.2 Topologies.26
4.2.3 Redundancy handling .32
4.2.4 Network recovery time .32
4.2.5 Diagnosis coverage .32
4.2.6 Failures .32
4.3 Safety .34
4.4 Security.34
4.5 Conformance.34
4.5.1 Conformance to redundancy protocols.34
4.5.2 Conformance tests .34
5 MRP – Media Redundancy Protocol based on a ring topology .37
5.1 MRP Overview .37

5.2 MRP Media redundancy behaviour .38
5.2.1 Ring ports.38
5.2.2 Media Redundancy Manager (MRM).39
5.2.3 Media Redundancy Client (MRC).40
5.2.4 Redundancy domain .40
5.2.5 Usage with diagnosis and alarms.40
5.2.6 Ring diagnosis.41
5.2.7 Multiple MRM in a single ring.41
5.2.8 BLOCKED not supported (option) .41
5.3 MRP Class specification.42
5.3.1 General .42
5.3.2 Template .42
5.3.3 Attributes.42
5.4 MRP Service specification.45

62439 © IEC:2008(E) – 3 –
5.4.1 Start MRM .45

5.4.2 Stop MRM .46

5.4.3 State Change .47

5.4.4 Start MRC .48

5.4.5 Stop MRC.49

5.4.6 Read MRM .50

5.4.7 Read MRC.52

5.5 MRP Protocol specification.53

5.5.1 PDU description .53

5.5.2 Protocol machines .59

5.6 MRP Installation, configuration and repair .79
5.6.1 Ring port parameters.79
5.6.2 Ring topology parameters.80
5.6.3 MRM and MRC parameters.80
5.6.4 Configuration.81
6 PRP – Parallel Redundancy Protocol.81
6.1 PRP Principle of operation .81
6.1.1 Single points of failure .83
6.1.2 Node structure.83
6.1.3 Compatibility between singly and doubly attached nodes.84
6.1.4 Network management.84
6.1.5 Transition to non-redundant networks.84
6.1.6 Duplicate handling.85
6.1.7 Configuration check.90
6.1.8 Network supervision .90
6.1.9 Redundancy management interface.90
6.2 PRP protocol specifications.91
6.2.1 Installation, configuration and repair guidelines .91
6.2.2 MAC addresses .91
6.2.3 Multicast MAC addresses .91
6.2.4 IP addresses .91
6.2.5 Nodes.92
6.2.6 Duplicate accept mode .92
6.2.7 Duplicate discard mode .92
6.3 PRP service specification .98

6.3.1 Arguments .98
6.3.2 NodesTable .99
6.3.3 PRP Write .100
6.3.4 PRP Read .101
6.4 PRP Management Information Base .102
6.5 PRP Protocol Implementation Conformance Statement (PICS) . 103
7 CRP – Cross-network Redundancy Protocol .103
7.1 CRP Overview.103
7.2 CRP Nodes .103
7.3 CRP LAN topology .103
7.4 CRP Key components .105
7.4.1 CRP General protocol operation .105
7.4.2 CRP Statistics .106
7.4.3 CRP Network_Status_Table .107

– 4 – 62439 © IEC:2008(E)
7.4.4 CRP Recovery time .110

7.4.5 CRP Multicast messages .111

7.4.6 CRP Unicast messages .111

7.4.7 CRP Redundancy information.112

7.4.8 CRP Redundancy statistics .112

7.5 CRP Protocol .112

7.5.1 CRP Singly attached node.112

7.5.2 CRP Doubly attached node.112

7.5.3 CRP Installation, configuration and repair. 112

7.5.4 CRP LRE model attributes.112

7.5.5 CRP Encoding of the DiagnosticFrame .118
7.5.6 CRP Encodin
...