1、 IEC 61588 Edition 3.0 2021-06 INTERNATIONAL STANDARD Precision Clock Synchronization Protocol for Networked Measurement and Control Systems IEC 61588:2021-06(en)IEEE Std 1588-2019 IEEE Std 1588 THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2019 IEEE All rights reserved.IEEE is a registered trad
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9、w.electropedia.org The worlds leading online dictionary on electrotechnology,containing more than 22 000 terminological entries in English and French,with equivalent terms in 18 additional languages.Also known as the International Electrotechnical Vocabulary(IEV)online.IEC 61588 Edition 3.0 2021-06
10、INTERNATIONAL STANDARD Precision Clock Synchronization Protocol for Networked Measurement and Control Systems INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS 25.040.40;35.110;35.240.50 ISBN 978-2-8322-9811-4 Warning!Make sure that you obtained this publication from an authorized distributor.IEEE Std 1
11、588 Registered trademark of the International Electrotechnical Commission IEC 61588:2021 IEEE Std 1588-2019 i Contents 1.Scope.14 2.Normative references.15 3.Definitions,acronyms,and abbreviations.16 3.1 Definitions.16 3.2 Acronyms and abbreviations.24 4.Conventions.26 4.1 Descriptive lexical form s
12、yntax.26 4.2 Word usage.27 4.3 Behavioral specification notation.28 5.Data types and on-the-wire formats.30 5.1 General.30 5.2 Primitive data type specifications.30 5.3 Derived data type specifications.31 5.4 On-the-wire formats.35 6.Clock synchronization model.36 6.1 General requirements on impleme
13、ntations.36 6.2 Principal assumptions about the network and implementation recommendations.39 6.3 PTP Networks.39 6.4 PTP message classes.40 6.5 PTP device types.41 6.6 Synchronization overview.53 6.7 PTP communications overview.65 7.Characterization of PTP entities.69 7.1 Domains.69 7.2 Timescales
14、used in PTP.72 7.3 PTP communications.74 7.4 PTP communication media.81 7.5 PTP Ports.84 7.6 PTP Instance characterization.89 7.7 PTP timing characterization.103 8.PTP data sets.105 8.1 General specifications for data set members.105 8.2 Data sets for PTP Instances.113 8.3 Data sets for Transparent
15、Clocks.141 8.4 commonMeanLinkDelayService data sets.144 9.PTP for Ordinary Clocks and Boundary Clocks.144 9.1 General protocol requirements for PTP Ordinary Clocks and Boundary Clocks.144 9.2 State protocol.145 9.3 Best master clock algorithms.154 9.4 Grandmaster PTP Instance timePropertiesDS update
16、s.164 9.5 PTP message processing semantics.166 9.6 Changes in the PTP Instance.182 10.PTP for Transparent Clocks.182 10.1 Requirements for both end-to-end and peer-to-peer Transparent Clocks.182 10.2 End-to-end Transparent Clock requirements.182 10.3 Peer-to-peer Transparent Clock requirements.191 11.Clock offset,path delay,residence time,and asymmetry corrections.195 Published by IEC under licence from IEEE.2019 IEEE.All rights reserved.IEC 61588:2021 ii IEEE Std 1588-2019 11.1 General specific
