EN IEC 62541-7:2020

SLOVENSKI STANDARD
01-december-2020
Nadomešča:
SIST EN 62541-7:2015
Enotna arhitektura OPC - 7. del: Profili (IEC 62541-7:2020)
OPC unified architecture - Part 7: Profiles (IEC 62541-7:2020)
OPC Unified Architecture - Teil 7: Profile (IEC 62541-7:2020)
Architecture unifiée OPC - Partie 7: Profils (IEC 62541-7:2020)
Ta slovenski standard je istoveten z: EN IEC 62541-7:2020
ICS:
25.040.40 Merjenje in krmiljenje Industrial process
industrijskih postopkov measurement and control
35.240.50 Uporabniške rešitve IT v IT applications in industry
industriji
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 62541-7

NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2020
ICS 35.100.05; 25.040.40 Supersedes EN 62541-7:2015 and all of its amendments
and corrigenda (if any)
English Version
OPC unified architecture - Part 7: Profiles
(IEC 62541-7:2020)
Architecture unifiée OPC - Partie 7: Profils OPC Unified Architecture - Teil 7: Profile
(IEC 62541-7:2020) (IEC 62541-7:2020)
This European Standard was approved by CENELEC on 2020-07-27. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 62541-7:2020 E

European foreword
The text of document 65E/707/FDIS, future edition 3 of IEC 62541-7, prepared by SC 65E "Devices
and integration in enterprise systems" of IEC/TC 65 "Industrial-process measurement, control and
automation" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2021-04-27
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2023-07-27
document have to be withdrawn
This document supersedes EN 62541-7:2015 and all of its amendments and corrigenda (if any).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a mandate given to CENELEC by the European Commission
and the European Free Trade Association.
Endorsement notice
The text of the International Standard IEC 62541-7:2020 was approved by CENELEC as a European
Standard without any modification.

Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1  Where an International Publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
NOTE 2  Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu.
Publication Year Title EN/HD Year
IEC/TR 62541-1 - OPC unified architecture - Part 1: CLC/TR 62541-1 -
Overview and concepts
IEC/TR 62541-2 - OPC unified architecture - Part 2: CLC/TR 62541-2 -
Security model
IEC 62541-3 - OPC Unified Architecture - Part 3: - -
Address Space Model
IEC 62541-4 - OPC Unified Architecture - Part 4: - -
Services
IEC 62541-5 - OPC Unified Architecture - Part 5: - -
Information Model
IEC 62541-6 - OPC Unified Architecture - Part 6: - -
Mappings
IEC 62541-8 - OPC Unified Architecture - Part 8: Data - -
Access
IEC 62541-9 - OPC Unified Architecture - Part 9: - -
Alarms and Conditions
IEC 62541-11 - OPC Unified Architecture - Part 11: - -
Historical Access
IEC 62541-12 - OPC unified architecture - Part 12: - -
Discovery and global services
IEC 62541-13 - OPC Unified Architecture - Part 13: - -
Aggregates
Compliance Part 8 - OPC Test Lab Specification: Part 8 - UA - -
UA Server Server
Compliance Part 9 - OPC Test Lab Specification: Part 9 - UA - -
UA Client Client
IEC 62541-7 ®
Edition 3.0 2020-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
OPC unified architecture –
Part 7: Profiles
Architecture unifiée OPC –
Partie 7: Profils
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 25.040.40; 35.100.05 ISBN 978-2-8322-8456-8

– 2 – IEC 62541-7:2020 © IEC 2020
CONTENTS
FOREWORD . 12
1 Scope . 15
2 Normative references . 15
3 Terms, definitions, and abbreviated terms . 16
3.1 Terms and definitions . 16
3.2 Abbreviated terms . 17
4 Overview . 17
4.1 General . 17
4.2 ConformanceUnit . 18
4.3 Profiles . 18
4.4 Profile Categories . 19
5 Conformance Units . 19
5.1 Overview. 19
5.2 Services . 20
5.3 Transport and communication related features . 30
5.4 Information Model and AddressSpace related features . 38
5.5 Miscellaneous . 55
6 Profiles . 57
6.1 Overview. 57
6.2 Profile list . 57
6.3 Conventions for Profile definitions . 64
6.4 Profile versioning . 64
6.5 Applications . 64
6.6 Profile tables . 66
6.6.1 General . 66
6.6.2 Core Server Facet . 66
6.6.3 Core 2017 Server Facet . 66
6.6.4 Sessionless Server Facet . 67
6.6.5 Reverse Connect Server Facet . 67
6.6.6 Base Server Behaviour Facet . 68
6.6.7 Request State Change Server Facet . 68
6.6.8 Subnet Discovery Server Facet . 68
6.6.9 Global Certificate Management Server Facet . 68
6.6.10 Authorization Service Server Facet . 69
6.6.11 KeyCredential Service Server Facet . 69
6.6.12 Attribute WriteMask Server Facet . 69
6.6.13 File Access Server Facet . 69
6.6.14 Documentation Server Facet . 70
6.6.15 Embedded DataChange Subscription Server Facet . 70
6.6.16 Standard DataChange Subscription Server Facet . 70
6.6.17 Standard DataChange Subscription 2017 Server Facet . 71
6.6.18 Enhanced DataChange Subscription Server Facet . 71
6.6.19 Enhanced DataChange Subscription 2017 Server Facet . 71
6.6.20 Durable Subscription Server Facet . 71
6.6.21 Data Access Server Facet . 72
6.6.22 ComplexType Server Facet . 72

IEC 62541-7:2020 © IEC 2020 – 3 –
6.6.23 ComplexType 2017 Server Facet . 72
6.6.24 Standard Event Subscription Server Facet . 73
6.6.25 Address Space Notifier Server Facet . 74
6.6.26 A & C Base Condition Server Facet . 74
6.6.27 A & C Refresh2 Server Facet . 74
6.6.28 A & C Address Space Instance Server Facet . 74
6.6.29 A & C Enable Server Facet . 75
6.6.30 A & C AlarmMetrics Server Facet . 75
6.6.31 A & C Alarm Server Facet . 75
6.6.32 A & C Acknowledgeable Alarm Server Facet . 76
6.6.33 A & C Exclusive Alarming Server Facet . 76
6.6.34 A & C Non-Exclusive Alarming Server Facet . 77
6.6.35 A & C Previous Instances Server Facet . 77
6.6.36 A & C Dialog Server Facet . 77
6.6.37 A & C CertificateExpiration Server Facet . 78
6.6.38 A & E Wrapper Facet . 78
6.6.39 Method Server Facet . 79
6.6.40 Auditing Server Facet . 79
6.6.41 Node Management Server Facet. 80
6.6.42 User Role Base Server Facet . 80
6.6.43 User Role Management Server Facet . 80
6.6.44 State Machine Server Facet . 81
6.6.45 Client Redundancy Server Facet . 81
6.6.46 Redundancy Transparent Server Facet . 81
6.6.47 Redundancy Visible Server Facet . 82
6.6.48 Historical Raw Data Server Facet . 82
6.6.49 Historical Aggregate Server Facet . 82
6.6.50 Historical Data AtTime Server Facet . 83
6.6.51 Historical Access Modified Data Server Facet . 84
6.6.52 Historical Annotation Server Facet . 84
6.6.53 Historical Data Insert Server Facet . 84
6.6.54 Historical Data Update Server Facet . 84
6.6.55 Historical Data Replace Server Facet . 85
6.6.56 Historical Data Delete Server Facet . 85
6.6.57 Historical Access Structured Data Server Facet . 85
6.6.58 Base Historical Event Server Facet . 85
6.6.59 Historical Event Update Server Facet . 86
6.6.60 Historical Event Replace Server Facet . 86
6.6.61 Historical Event Insert Server Facet . 86
6.6.62 Historical Event Delete Server Facet . 86
6.6.63 Aggregate Subscription Server Facet . 87
6.6.64 Nano Embedded Device Server Profile . 88
6.6.65 Nano Embedded Device 2017 Server Profile . 88
6.6.66 Micro Embedded Device Server Profile . 88
6.6.67 Micro Embedded Device 2017 Server Profile . 88
6.6.68 Embedded UA Server Profile . 88
6.6.69 Embedded 2017 UA Server Profile . 89
6.6.70 Standard UA Server Profile . 89
6.6.71 Standard 2017 UA Server Profile . 89

– 4 – IEC 62541-7:2020 © IEC 2020
6.6.72 Core Client Facet. 90
6.6.73 Core 2017 Client Facet . 90
6.6.74 Sessionless Client Facet . 90
6.6.75 Reverse Connect Client Facet . 90
6.6.76 Base Client Behaviour Facet . 91
6.6.77 Discovery Client Facet . 91
6.6.78 Subnet Discovery Client Facet . 91
6.6.79 Global Discovery Client Facet . 92
6.6.80 Global Certificate Management Client Facet . 92
6.6.81 KeyCredential Service Client Facet . 92
6.6.82 Access Token Request Client Facet . 92
6.6.83 AddressSpace Lookup Client Facet . 93
6.6.84 Request State Change Client Facet . 93
6.6.85 File Access Client Facet . 93
6.6.86 Entry Level Support 2015 Client Facet . 94
6.6.87 Multi-Server Client Connection Facet . 94
6.6.88 Documentation – Client . 94
6.6.89 Attribute Read Client Facet . 94
6.6.90 Attribute Write Client Facet . 95
6.6.91 DataChange Subscriber Client Facet . 95
6.6.92 Durable Subscription Client Facet . 96
6.6.93 DataAccess Client Facet . 96
6.6.94 Event Subscriber Client Facet. 97
6.6.95 Base Event Processing Client Facet . 97
6.6.96 Notifier and Source Hierarchy Client Facet . 98
6.6.97 A & C Base Condition Client Facet . 98
6.6.98 A & C Refresh2 Client Facet . 98
6.6.99 A & C Address Space Instance Client Facet . 99
6.6.100 A & C Enable Client Facet . 99
6.6.101 A & C AlarmMetrics Client Facet . 99
6.6.102 A & C Alarm Client Facet . 99
6.6.103 A & C Exclusive Alarming Client Facet . 100
6.6.104 A & C Non-Exclusive Alarming Client Facet . 100
6.6.105 A & C Previous Instances Client Facet . 101
6.6.106 A & C Dialog Client Facet . 101
6.6.107 A & C CertificateExpiration Client Facet . 101
6.6.108 A & E Proxy Facet . 102
6.6.109 Method Client Facet. 103
6.6.110 Auditing Client Facet . 103
6.6.111 Node Management Client Facet . 103
6.6.112 Advanced Type Programming Client Facet . 103
6.6.113 User Role Management Client Facet . 104
6.6.114 State Machine Client Facet . 104
6.6.115 Diagnostic Client Facet . 104
6.6.116 Redundant Client Facet . 105
6.6.117 Redundancy Switch Client Facet . 105
6.6.118 Historical Access Client Facet . 105
6.6.119 Historical Data AtTime Client Facet . 105
6.6.120 Historical Aggregate Client Facet . 105

IEC 62541-7:2020 © IEC 2020 – 5 –
6.6.121 Historical Annotation Client Facet . 107
6.6.122 Historical Access Modified Data Client Facet . 107
6.6.123 Historical Data Insert Client Facet . 107
6.6.124 Historical Data Update Client Facet . 107
6.6.125 Historical Data Replace Client Facet. 107
6.6.126 Historical Data Delete Client Facet . 108
6.6.127 Historical Access Client Server Timestamp Facet . 108
6.6.128 Historical Structured Data Access Client Facet . 108
6.6.129 Historical Structured Data AtTime Client Facet . 108
6.6.130 Historical Structured Data Modified Client Facet . 109
6.6.131 Historical Structured Data Insert Client Facet . 109
6.6.132 Historical Structured Data Update Client Facet . 109
6.6.133 Historical Structured Data Replace Client Facet . 109
6.6.134 Historical Structured Data Delete Client Facet . 109
6.6.135 Historical Events Client Facet . 110
6.6.136 Historical Event Insert Client Facet . 110
6.6.137 Historical Event Update Client Facet. 110
6.6.138 Historical Event Replace Client Facet . 110
6.6.139 Historical Event Delete Client Facet . 111
6.6.140 Aggregate Subscriber Client Facet . 111
6.6.141 Standard UA Client Profile . 112
6.6.142 Standard UA Client 2017 Profile . 112
6.6.143 UA-TCP UA-SC UA-Binary. 113
6.6.144 HTTPS UA-Binary . 113
6.6.145 HTTPS UA-XML . 114
6.6.146 HTTPS UA-JSON. 114
6.6.147 WSS UA-SC UA-Binary. 114
6.6.148 WSS UA-JSON . 114
6.6.149 Security User Access Control Full . 115
6.6.150 Security User Access Control Base. 115
6.6.151 Security Time Synchronization . 115
6.6.152 Best Practice – Audit Events . 116
6.6.153 Best Practice – Alarm Handling . 116
6.6.154 Best Practice – Random Numbers . 116
6.6.155 Best Practice – Timeouts . 116
6.6.156 Best Practice – Administrative Access . 116
6.6.157 Best Practice – Strict Message Handling . 117
6.6.158 Best Practice – Audit Events Client . 117
6.6.159 TransportSecurity – TLS 1.2 . 117
6.6.160 TransportSecurity – TLS 1.2 with PFS . 117
6.6.161 SecurityPolicy – None . 118
6.6.162 SecurityPolicy – Basic128Rsa15 . 118
6.6.163 SecurityPolicy – Basic256 . 118
6.6.164 SecurityPolicy [A] – Aes128-Sha256-RsaOaep . 118
6.6.165 SecurityPolicy [B] – Basic256Sha256 . 119
6.6.166 SecurityPolicy – Aes256-Sha256-RsaPss . 119
6.6.167 User Token – Anonymous Facet . 120
6.6.168 User Token – User Name Password Server Facet . 120
6.6.169 User Token – X509 Certificate Server Facet . 120

– 6 – IEC 62541-7:2020 © IEC 2020
6.6.170 User Token – Issued Token Server Facet . 121
6.6.171 User Token – Issued Token Windows Server Facet . 121
6.6.172 User Token – JWT Server Facet . 121
6.6.173 User Token – User Name Password Client Facet . 121
6.6.174 User Token – X509 Certificate Client Facet . 122
6.6.175 User Token – Issued Token Client Facet . 122
6.6.176 User Token – Issued Token Windows Client Facet . 122
6.6.177 User Token – JWT Client Facet . 122
6.6.178 Global Discovery Server Profile . 122
6.6.179 Global Discovery Server 2017 Profile . 123
6.6.180 Global Discovery and Certificate Management Server. 123
6.6.181 Global Discovery and Certificate Mgmt 2017 Server . 123
6.6.182 Global Certificate Management Client Profile . 123
6.6.183 Global Certificate Management Client 2017 Profile . 123
6.6.184 Global Service Authorization Request Server Facet . 124
6.6.185 Global Service KeyCredential Pull Facet . 124
6.6.186 Global Service KeyCredential Push Facet . 124
Bibliography . 125

Figure 1 – Profile – ConformanceUnit – TestCases . 18
Figure 2 – HMI Client sample . 64
Figure 3 – Embedded Server sample . 65
Figure 4 – Standard UA Server sample . 65

Table 1 – Profile Categories . 19
Table 2 – Conformance Groups . 20
Table 3 – Discovery Services . 21
Table 4 – Session Services . 22
Table 5 – Node Management Services . 23
Table 6 – View Services . 24
Table 7 – Attribute Services . 25
Table 8 – Method Services . 26
Table 9 – Monitored Item Services . 27
Table 10 – Subscription Services . 29
Table 11 – Security . 31
Table 12 – Protocol and Encoding . 38
Table 13 – Base Information . 39
Table 14 – Address Space Model . 41
Table 15 – Data Access . 42
Table 16 – Alarms and Conditions . 43
Table 17 – Historical Access . 46
Table 18 – Aggregates . 49
Table 19 – Auditing . 54
Table 20 – Redundancy . 54
Table 21 – Global Discovery Server . 55

IEC 62541-7:2020 © IEC 2020 – 7 –
Table 22 – Miscellaneous . 56
Table 23 – Profile list . 58
Table 24 – Core 2017 Server Facet . 67
Table 25 – Sessionless Server Facet . 67
Table 26 – Reverse Connect Server Facet . 68
Table 27 – Base Server Behaviour Facet . 68
Table 28 – Request State Change Server Facet . 68
Table 29 – Subnet Discovery Server Facet . 68
Table 30 – Global Certificate Management Server Facet . 69
Table 31 – Authorization Service Server Facet . 69
Table 32 – KeyCredential Service Server Facet . 69
Table 33 – Attribute WriteMask Server Facet . 69
Table 34 – File Access Server Facet . 70
Table 35 – Documentation Server Facet . 70
Table 36 – Embedded DataChange Subscription Server Facet . 70
Table 37 – Standard DataChange Subscription 2017 Server Facet . 71
Table 38 – Enhanced DataChange Subscription 2017 Server Facet . 71
Table 39 – Durable Subscription Server Facet . 72
Table 40 – Data Access Server Facet . 72
Table 41 – ComplexType 2017 Server Facet . 73
Table 42 – Standard Event Subscription Server Facet . 73
Table 43 – Address Space Notifier Server Facet . 74
Table 44 – A & C Base Condition Server Facet . 74
Table 45 – A & C Refresh2 Server Facet . 74
Table 46 – A & C Address Space Instance Server Facet . 75
Table 47 – A & C Enable Server Facet . 75
Table 48 – A & C AlarmMetrics Server Facet . 75
Table 49 – A & C Alarm Server Facet . 76
Table 50 – A & C Acknowledgeable Alarm Server Facet . 76
Table 51 – A & C Exclusive Alarming Server Facet . 77
Table 52 – A & C Non-Exclusive Alarming Server Facet . 77
Table 53 – A & C Previous Instances Server Facet . 77
Table 54 – A & C Dialog Server Facet . 78
Table 55 – A & C CertificateExpiration Server Facet . 78
Table 56 – A & E Wrapper Facet . 79
Table 57 – Method Server Facet . 79
Table 58 – Auditing Server Facet . 80
Table 59 – Node Management Server Facet . 80
Table 60 – User Role Base Server Facet . 80
Table 61 – User Role Management Server Facet . 81
Table 62 – State Machine Server Facet . 81
Table 63 – Client Redundancy Server Facet . 81
Table 64 – Redundancy Transparent Server Facet. 81

– 8 – IEC 62541-7:2020 © IEC 2020
Table 65 – Redundancy Visible Server Facet . 82
Table 66 – Historical Raw Data Server Facet . 82
Table 67 – Historical Aggregate Server Facet . 83
Table 68 – Historical Data AtTime Server Facet . 84
Table 69 – Historical Access Modified Data Server Facet . 84
Table 70 – Historical Annotation Server Facet . 84
Table 71 – Historical Data Insert Server Facet . 84
Table 72 – Historical Data Update Server Facet . 85
Table 73 – Historical Data Replace Server Facet . 85
Table 74 – Historical Data Delete Server Facet . 85
Table 75 – Historical Access Structured Data Server Facet. 85
Table 76 – Base Historical Event Server Facet . 86
Table 77 – Historical Event Update Server Facet . 86
Table 78 – Historical Event Replace Server Facet . 86
Table 79 – Historical Event Insert Server Facet . 86
Table 80 – Historical Event Delete Server Facet . 86
Table 81 – Aggregate Subscription Server Facet . 87
Table 82 – Nano Embedded Device 2017 Server Profile . 88
Table 83 – Micro Embedded Device 2017 Server Profile . 88
Table 84 – Embedded 2017 UA Server Profile . 89
Table 85 – Standard 2017 UA Server Profile . 89
Table 86 – Core 2017 Client Facet . 90
Table 87 – Sessionless Client Facet . 90
Table 88 – Reverse Connect Client Facet . 91
Table 89 – Base Client Behaviour Facet . 91
Table 90 – Discovery Client Facet. 91
Table 91 – Subnet Discovery Client Facet . 92
Table 92 – Global Discovery Client Facet . 92
Table 93 – Global Certificate Management Client Facet . 92
Table 94 – KeyCredential Service Client Facet . 92
Table 95 – Access Token Request Client Facet . 93
Table 96 – AddressSpace Lookup Client Facet . 93
Table 97 – Request State Change Client Facet . 93
Table 98 – File Access Client Facet . 93
Table 99 – Entry Level Support 2015 Client Facet . 94
Table 100 – Multi-Server Client Connection Facet . 94
Table 101 – Documentation – Client . 94
Table 102 – Attribute Read Client Facet. 95
Table 103 – Attribute Write Client Facet . 95
Table 104 – DataChange Subscriber Client Facet . 96
Table 105 – Durable Subscription Client Facet. 96
Table 106 – DataAccess Client Facet . 97
Table 107 – Event Subscriber Client Facet .
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