1、 IEC TR 62541-1 Edition 2.0 2016-10 TECHNICA L R EPOR T OPC unified architecture Part 1:Ov erview and concepts IEC T R 62541-1:2016-10(en)c olourinsideInternational Electrotechnical Commission THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2016 IEC,Geneva,Switzerland All r ights r eserved.Unless
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11、TROTECHNICAL COMMISSION ICS 25.040.40;35.100.01 ISBN 978-2-8322-3640-6 Registered t rademark of t he Int ernational Electrot echnical Commission W arning!Make sure that you obtained this publication from an authorized distributor.c olourinsideInternational Electrotechnical Commission 2 IEC TR 62541-
12、1:2016 IEC 2016 CONTENTS FOREWORD.4 1 Scope.6 2 Normative ref erences.6 3 Terms,def initions and abbreviations.6 3.1 Terms and def initions.6 3.2 Abbreviations.10 4 Structure of the OPC UA series.10 4.1 Specif ication organization.10 4.2 Core specif ication parts.11 4.3 Access Type specif ication pa
13、rts.12 4.4 Utility specif ication parts.12 5 IEC 62541 standards Overview.13 5.1 UA scope.13 5.2 General.13 5.3 Design goals.13 5.4 Integrated models and services.15 5.4.1 Security model.15 5.4.2 Integrated Add ressSpace model.16 5.4.3 Integrated object model.16 5.4.4 Integrated services.17 5.5 Sess
14、ions.17 5.6 Redundancy.17 6 Systems concepts.17 6.1 Overview.17 6.2 OPC UA Cli ents.18 6.3 OPC UA Servers.19 6.3.1 General.19 6.3.2 Real objects.19 6.3.3 OPC UA Server application.19 6.3.4 OPC UA AddressSpace.20 6.3.5 Publisher/subscriber entities.20 6.3.6 OPC UA Service Interf ace.20 6.3.7 Server t
15、o Server interactions.21 7 Service Sets.22 7.1 General.22 7.2 Discovery Service Set.22 7.3 SecureChannel Service Set.22 7.4 Session Service Set.23 7.5 NodeManagement Service Set.23 7.6 View Service Set.24 7.7 Query Service Set.24 7.8 Attribute Service Set.24 7.9 Method Service Set.24 7.10 MonitoredI
16、tem Service Set.24 7.11 Subscription Service Set.25 Bibliography.26 International Electrotechnical Commission IEC TR 62541-1:2016 IEC 2016 3 Figure 1 OPC UA Specif ication organization.11 Figure 2 OPC UA Target applications.14 Figure 3 OPC UA System architecture.18 Figure 4 OPC UA Client architecture.18 Figure 5 OPC UA Server architecture.19 Figure 6 Peer-to-peer interactions between Servers.21 Figure 7 Chained Server example.22 Figure 8 SecureChannel and Session Services.23 International Electr