BS EN IEC 62439-3:2018
$215.11
Industrial communication networks. High availability automation networks – Parallel Redundancy Protocol (PRP) and High-availability Seamless Redundancy (HSR)
| Published By | Publication Date | Number of Pages |
| BSI | 2018 | 174 |
IEC 62439-3:2016 is available as /2 which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC 62439-3:2016 is applicable to high-availability automation networks based on the Ethernet technology. This part of IEC 62439 specifies two redundancy protocols designed to provide seamless recovery in case of single failure of an inter-bridge link or bridge in the network, which are based on the same scheme: parallel transmission of duplicated information. This third edition cancels and replaces the second edition published in 2012. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: – technical corrections and extension of specifications; – consideration of IEC 61588 clock synchronization with end-to-end delay measurement alongside the existing peer-to-peer delay measurement in PRP.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 6 | English CONTENTS |
| 12 | FOREWORD |
| 14 | INTRODUCTION 0.1 General 0.2 Changes with respect to the previous edition 0.3 Patent declaration |
| 16 | 1 Scope 2 Normative references |
| 17 | 3 Terms, definitions, abbreviations, acronyms, and conventions 3.1 Terms and definitions 3.2 Abbreviations and acronyms |
| 18 | 3.3 Conventions |
| 19 | 4 Parallel Redundancy Protocol (PRP) 4.1 PRP principle of operation 4.1.1 PRP network topology 4.1.2 PRP LANs with linear or bus topology Figures Figure 1 โ PRP example of general redundant network |
| 20 | 4.1.3 PRP LANs with ring topology 4.1.4 DANP node structure Figure 2 โ PRP example of redundant network as two LANs (bus topology) Figure 3 โ PRP example of redundant ring with SANs and DANPs |
| 21 | 4.1.5 PRP attachment of singly attached nodes Figure 4 โ PRP with two DANPs communicating |
| 22 | 4.1.6 Compatibility between singly and doubly attached nodes 4.1.7 Network management 4.1.8 Implication on application 4.1.9 Transition to non-redundant networks |
| 23 | 4.1.10 Duplicate handling Figure 5 โ PRP RedBox, transition from single to double LAN |
| 24 | Figure 6 โ PRP frame extended by an RCT |
| 25 | Figure 7 โ PRP VLAN-tagged frame extended by an RCT Figure 8 โ PRP padded frame closed by an RCT |
| 26 | Figure 9 โ Duplicate Discard algorithm boundaries |
| 27 | Tables Table 1 โ Duplicate discard cases |
| 28 | 4.1.11 Network supervision 4.1.12 Redundancy management interface 4.2 PRP protocol specifications 4.2.1 Installation, configuration and repair guidelines |
| 29 | 4.2.2 Unicast MAC addresses 4.2.3 Multicast MAC addresses 4.2.4 IP addresses 4.2.5 Nodes |
| 30 | 4.2.6 Duplicate Accept mode (testing only) 4.2.7 Duplicate Discard mode Table 2 โ Monitoring data set |
| 31 | Table 3 โ NodesTable attributes |
| 34 | 4.3 PRP_Supervision frame 4.3.1 PRP_Supervision frame format Table 4 โ PRP_Supervision frame with no VLAN tag |
| 35 | 4.3.2 PRP_Supervision frame contents Table 5 โ PRP_Supervision frame with (optional) VLAN tag |
| 36 | 4.3.3 PRP_Supervision frame for RedBox 4.3.4 Reception of a PRP_Supervision frame and NodesTable Table 6 โ PRP_Supervision frame contents Table 7 โ PRP_Supervision TLV for Redbox |
| 37 | 4.4 Bridging node 4.5 Constants 4.6 PRP service specification 5 High-availability Seamless Redundancy (HSR) 5.1 HSR objectives Table 8 โ PRP constants |
| 38 | 5.2 HSR principle of operation 5.2.1 Basic operation with a ring topology Figure 10 โ HSR example of ring configuration for multicast traffic |
| 39 | 5.2.2 DANH node structure Figure 11 โ HSR example of ring configuration for unicast traffic |
| 40 | 5.2.3 Topology Figure 12 โ HSR structure of a DANH |
| 41 | Figure 13 โ HSR example of topology using two independent networks |
| 42 | Figure 14 โ HSR example of peer coupling of two rings |
| 43 | Figure 15 โ HSR example of connected rings |
| 44 | Figure 16 โ HSR example of coupling two redundant PRP LANs to a ring |
| 45 | Figure 17 โ HSR example of coupling from a ring node to redundant PRP LANs |
| 46 | Figure 18 โ HSR example of coupling from a ring to two PRP LANs |
| 47 | Figure 19 โ HSR example of coupling three rings to one PRP LAN |
| 48 | 5.2.4 RedBox structure Figure 20 โ HSR example of meshed topology |
| 49 | Figure 21 โ HSR structure of a RedBox |
| 50 | 5.3 HSR node specifications 5.3.1 HSR operation 5.3.2 DANH receiving from its link layer interface |
| 51 | 5.3.3 DANH receiving from an HSR port |
| 52 | 5.3.4 DANH forwarding rules |
| 53 | 5.3.5 CoS |
| 54 | 5.3.6 Clock synchronization 5.3.7 Deterministic medium access 5.4 HSR RedBox specifications 5.4.1 RedBox properties 5.4.2 RedBox receiving from interlink |
| 56 | 5.4.3 RedBox forwarding on the ring 5.4.4 RedBox receiving from an HSR port |
| 58 | 5.4.5 RedBox receiving from its link layer interface 5.4.6 Redbox ProxyNodeTable handling 5.4.7 RedBox CoS |
| 59 | 5.4.8 RedBox clock synchronization 5.4.9 RedBox medium access 5.5 QuadBox specification 5.6 Duplicate Discard method 5.7 Frame format for HSR 5.7.1 Frame format for all frames Figure 22 โ HSR frame without a VLAN tag |
| 60 | 5.7.2 HSR_Supervision frame Figure 23 โ HSR frame with VLAN tag |
| 61 | Table 9 โ HSR_Supervision frame with no VLAN tag |
| 62 | Table 10 โ HSR_Supervision frame with optional VLAN tag |
| 63 | 5.8 Constants |
| 64 | 5.9 HSR service specification Figure 24 โ HSR node with management counters Table 11 โ HSR Constants |
| 65 | 6 Protocol Implementation Conformance Statement (PICS) Figure 25 โ HSR RedBox with management counters |
| 66 | 7 PRP/HSR Management Information Base (MIB) |
| 83 | Annexes Annex A (normative) Clocks synchronization over redundant paths in IEC 62439-3 A.1 Overview A.2 Attachment to redundant LANs by a boundary clock Figure A.1 โ Doubly Attached Clock as BC (MCA is best master) |
| 84 | A.3 Attachment to redundant LANs by doubly attached ordinary clocks |
| 85 | Figure A.2 โ Doubly Attached Clock when MCA is best master |
| 86 | A.4 PRP mapping to PTP A.4.1 Scenarios and device roles Figure A.3 โ Doubly attached clocks when OC1 is best master |
| 88 | A.4.2 Operation in PRP Figure A.4 โ Elements of PRP networks |
| 89 | A.4.3 Configuration specification Figure A.5 โ Connection of a master clock to an ordinary clock over PRP |
| 90 | A.4.4 Specifications of DANP as DAC A.4.5 Clock model of a RedBox for PTP |
| 91 | Figure A.6 โ PRP RedBox as BCs (OC3 and BC7 are best masters) |
| 92 | Figure A.7 โ RedBox DABC clock model |
| 93 | Figure A.8 โ PRP RedBoxes as DABC with E2E โ BC7 is master |
| 94 | Figure A.9 โ PRP RedBoxes as DABC with E2E โ timing |
| 95 | Figure A.10 โ PRP RedBoxes as DABC with P2P โ OC5 is best master |
| 96 | Figure A.11 โ PRP RedBoxes as DABC with P2P โ timing |
| 97 | Figure A.12 โ PRP RedBox as DATC with E2E โsignal flow |
| 99 | Figure A.13 โ PRP RedBox as DATC with E2E โ timing |
| 100 | Figure A.14 โ PRP RedBox as DATC with P2P |
| 101 | Figure A.15 โ PRP RedBox as DATC with P2P โ timing |
| 104 | Figure A.16 โ PRP RedBox as SLTC with E2E |
| 105 | Figure A.17 โ PRP RedBox as SLTC with E2E โ timing |
| 106 | Figure A.18 โ PRP RedBox as SLTC with P2P |
| 107 | A.5 HSR Mapping to PTP A.5.1 PTP traffic in HSR |
| 108 | Figure A.19 โ HSR with one GMC |
| 109 | Figure A.20 โ PTP messages sent and received by an HSR node (1-step). |
| 110 | A.5.2 HSR nodes specifications Figure A.21 โ PTP messages sent and received by an HSR node (2-step) |
| 111 | A.5.3 Redundant clocks in HSR A.5.4 Attachment of an MC to an external LAN |
| 112 | A.6 PRP to HSR Mapping A.6.1 Connection methods A.6.2 PRP-HSR connection by BC Figure A.22 โ Attachment of a GMC to an HSR ring through a RedBox as TC |
| 113 | A.6.3 PRP-HSR connection by TCs Figure A.23 โ PRP to HSR coupling by BCs |
| 114 | A.7 Doubly attached clock model A.7.1 State machine Figure A.24 โ PRP to HSR coupling by TCs |
| 115 | Figure A.25 โ Port states including transitions for redundant operation |
| 116 | Table A.1 โ States |
| 117 | A.7.2 Supervision of the port Table A.2 โ Transitions Table A.3 โ Variables |
| 118 | A.7.3 BMCA for paired ports Figure A.26 โ BMCA for redundant masters |
| 119 | A.7.4 Selection of the port state A.8 PTP datasets for high availability A.8.1 General A.8.2 Data types |
| 120 | A.8.3 Datasets for ordinary or boundary clocks |
| 124 | A.8.4 Object for transparent clocks |
| 127 | Annex B (normative) PTP profile for Power Utility Automation โ Redundant clock attachment B.1 Application domain B.2 PTP profile specification B.3 Redundant clock attachment |
| 128 | Annex C (normative) PTP profiles for high-availability automation networks C.1 Application domain C.2 PTP profile specification C.3 Clock types |
| 129 | C.4 Protocol specification common C.5 Protocol specification for L3E2E automation profile C.6 Protocol specification for L2P2P automation profile |
| 130 | C.7 Timing requirements C.7.1 Measurement conditions C.7.2 Network time inaccuracy C.7.3 Network elements C.7.4 Requirements for grandmasters |
| 131 | C.7.5 Requirements for TCs C.7.6 Requirements for BCs C.7.7 Requirements for media converters C.7.8 Requirements for links |
| 132 | C.8 Network engineering C.9 Default settings |
| 133 | C.10 Redundant clock handling Table C.1 โ PTP attributes for the Industrial Automation profile |
| 134 | C.11 Protocol Implementation Conformance Statement (PICS) C.11.1 Conventions C.11.2 PICS |
| 135 | Table C.2 โ PICS for clocks |
| 136 | Annex D (informative) Precision Time Protocol tutorial for IEC 62439-3 D.1 Objective D.2 Precision and accuracy Figure D.1 โPrecision and accuracy example |
| 137 | D.3 PTP clock types Figure D.2 โ Precision Time Protocol principle |
| 138 | D.4 PTP main options Figure D.3 โ Precision Time Protocol elements |
| 139 | D.5 Layer 2 and layer 3 communication D.6 1-step and 2-step correction D.6.1 Time correction in TCs Figure D.4 โ Delays and time-stamping logic in TCs |
| 140 | D.6.2 2-step to 1-step translation Figure D.5 โ Correction of the Sync message by 1-step and 2-step (peer-to-peer) |
| 141 | Figure D.6 โ Translation from 2-step to 1-step in TCs |
| 142 | D.7 End-To-End link delay measurement D.7.1 General method D.7.2 End-to-End link delay measurement with 1-step clock correction Figure D.7 โ Translation from 2-step to 1-step โ message view |
| 143 | D.7.3 End-to-End link delay measurement with 2-step clock correction Figure D.8 โ End-to-end link delay measurement with 1-step clock correction |
| 144 | D.7.4 End-to-End link delay calculation by Delay_Req/Delay_Resp D.8 Peer-to-Peer link delay calculation D.8.1 Peer-to-Peer link delay calculation with 1-step correction Figure D.9 โ End-to-end delay measurement with 2-step clock correction |
| 145 | D.8.2 Peer-to-Peer link delay calculation with 2-step correction Figure D.10 โ Peer-to-peer link delay measurement with 1-step clock correction |
| 146 | Figure D.11 โ Peer-to-peer link delay measurement with 2-step clock correction |
| 147 | Annex E (normative) Management Information base for singly and doubly attached clocks |
| 172 | Bibliography |
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