SIST EN IEC 62541-11:2020

SLOVENSKI STANDARD
SIST EN IEC 62541-11:2020
01-december-2020
Nadomešča:
SIST EN 62541-11:2015
Enotna arhitektura OPC - 11. del: Zgodovinski dostop (IEC 62541-11:2020)
OPC Unified Architecture - Part 11: Historical Access (IEC 62541-11:2020)
OPC Unified Architecture - Teil 11: Zugang zu historischen Daten (IEC 62541-11:2020)
Architecture unifiée OPC - Partie 11: Accès à l'Historique (IEC 62541-11:2020)
Ta slovenski standard je istoveten z: EN IEC 62541-11:2020
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
SIST EN IEC 62541-11:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN IEC 62541-11:2020


EUROPEAN STANDARD EN IEC 62541-11

NORME EUROPÉENNE

EUROPÄISCHE NORM
August 2020
ICS 35.100.05; 25.040.40 Supersedes EN 62541-11:2015 and all of its
amendments and corrigenda (if any)
English Version
OPC Unified Architecture - Part 11: Historical Access
(IEC 62541-11:2020)
Architecture unifiée OPC - Partie 11: Accès à l'Historique OPC Unified Architecture - Teil 11: Zugang zu historischen
(IEC 62541-11:2020) Daten
(IEC 62541-11:2020)
This European Standard was approved by CENELEC on 2020-07-28. 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 62541-11:2020 E

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SIST EN IEC 62541-11:2020
EN IEC 62541-11:2020 (E)
European foreword
The text of document 65E/710/FDIS, future edition 3 of IEC 62541-11, 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
EN IEC 62541-11:2020.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2021-04-28
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2023-07-28
document have to be withdrawn
This document supersedes EN 62541-11:2015 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 62541-11:2020 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards
indicated:
IEC 62541-6 NOTE Harmonized as EN 62541-6
IEC 62541-7 NOTE Harmonized as EN 62541-7

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EN IEC 62541-11:2020 (E)
Annex A
(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 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 62541-8 - OPC Unified Architecture - Part 8: Data EN IEC 62541-8 -
Access
IEC 62541-13 - OPC Unified Architecture - Part 13: EN IEC 62541-13 -
Aggregates

3

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IEC 62541-11

®


Edition 2.0 2020-06




INTERNATIONAL



STANDARD




NORME


INTERNATIONALE
colour

inside










OPC unified architecture –

Part 11: Historical Access



Architecture unifiée OPC –

Partie 11: Accès à l'Historique
















INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE


INTERNATIONALE




ICS 25.040.40; 35.100.05 ISBN 978-2-8322-8454-4



Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

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SIST EN IEC 62541-11:2020
– 2 – IEC 62541-11:2020 © IEC 2020
CONTENTS
FOREWORD . 5
1 Scope . 7
2 Normative references . 7
3 Terms, definitions, and abbreviated terms . 7
3.1 Terms and definitions . 7
3.2 Abbreviated terms . 9
4 Concepts . 9
4.1 General . 9
4.2 Data architecture . 10
4.3 Timestamps . 10
4.4 Bounding Values and time domain . 11
4.5 Changes in AddressSpace over time . 13
5 Historical Information Model . 13
5.1 HistoricalNodes. 13
5.1.1 General . 13
5.1.2 Annotations Property . 13
5.2 HistoricalDataNodes . 14
5.2.1 General . 14
5.2.2 HistoricalDataConfigurationType. 14
5.2.3 HasHistoricalConfiguration ReferenceType . 15
5.2.4 Historical Data Configuration Object . 16
5.2.5 HistoricalDataNodes Address Space Model . 17
5.2.6 Attributes . 17
5.3 HistoricalEventNodes . 18
5.3.1 General . 18
5.3.2 HistoricalEventFilter Property . 18
5.3.3 HistoricalEventNodes Address Space Model . 18
5.3.4 HistoricalEventNodes Attributes . 19
5.4 Exposing supported functions and capabilities . 19
5.4.1 General . 19
5.4.2 HistoryServerCapabilitiesType . 20
5.5 Annotation DataType . 22
5.6 Historical Audit Events . 23
5.6.1 General . 23
5.6.2 AuditHistoryEventUpdateEventType . 23
5.6.3 AuditHistoryValueUpdateEventType . 24
5.6.4 AuditHistoryAnnotationUpdateEventType . 25
5.6.5 AuditHistoryDeleteEventType . 25
5.6.6 AuditHistoryRawModifyDeleteEventType . 26
5.6.7 AuditHistoryAtTimeDeleteEventType . 27
5.6.8 AuditHistoryEventDeleteEventType . 27
6 Historical Access specific usage of Services . 28
6.1 General . 28
6.2 Historical Nodes StatusCodes . 28
6.2.1 Overview . 28
6.2.2 Operation level result codes . 28

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6.2.3 Semantics changed . 30
6.3 Continuation Points . 30
6.4 HistoryReadDetails parameters . 31
6.4.1 Overview . 31
6.4.2 ReadEventDetails structure . 31
6.4.3 ReadRawModifiedDetails structure . 33
6.4.4 ReadProcessedDetails structure . 35
6.4.5 ReadAtTimeDetails structure . 37
6.4.6 ReadAnnotationDataDetails structure . 38
6.5 HistoryData parameters returned . 39
6.5.1 Overview . 39
6.5.2 HistoryData type . 39
6.5.3 HistoryModifiedData type . 39
6.5.4 HistoryEvent type . 39
6.5.5 HistoryAnnotationData type . 40
6.6 HistoryUpdateType Enumeration . 40
6.7 PerformUpdateType Enumeration . 40
6.8 HistoryUpdateDetails parameter . 40
6.8.1 Overview . 40
6.8.2 UpdateDataDetails structure . 42
6.8.3 UpdateStructureDataDetails structure . 43
6.8.4 UpdateEventDetails structure . 44
6.8.5 DeleteRawModifiedDetails structure . 46
6.8.6 DeleteAtTimeDetails structure . 47
6.8.7 DeleteEventDetails structure . 48
Annex A (informative) Client conventions . 49
A.1 How clients may request timestamps . 49
A.2 Determining the first historical data point . 50
Bibliography . 52

Figure 1 – Possible OPC UA Server supporting Historical Access . 10
Figure 2 – ReferenceType hierarchy . 16
Figure 3 – Historical Variable with Historical Data Configuration and Annotations . 17
Figure 4 – Representation of an Event with History in the AddressSpace . 19
Figure 5 – Server and HistoryServer Capabilities . 20

Table 1 – Bounding Value examples . 12
Table 2 – Annotations Property . 13
Table 3 – HistoricalDataConfigurationType definition . 14
Table 4 – ExceptionDeviationFormat Values . 15
Table 5 – HasHistoricalConfiguration ReferenceType . 16
Table 6 – Historical Access configuration definition. 16
Table 7 – Historical Events Properties . 18
Table 8 – HistoryServerCapabilitiesType Definition . 21
Table 9 – Annotation Structure . 23
Table 10 – AuditHistoryEventUpdateEventType definition . 23

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Table 11 – AuditHistoryValueUpdateEventType definition . 24
Table 12 – AuditHistoryAnnotationUpdateEventType definition . 25
Table 13 – AuditHistoryDeleteEventType definition . 26
Table 14 – AuditHistoryRawModifyDeleteEventType definition . 26
Table 15 – AuditHistoryAtTimeDeleteEventType definition . 27
Table 16 – AuditHistoryEventDeleteEventType definition . 27
Table 17 – Bad operation level result codes . 29
Table 18 – Good operation level result codes . 29
Table 19 – HistoryReadDetails parameterTypeIds . 31
Table 20 – ReadEventDetails . 32
Table 21 – ReadRawModifiedDetails . 33
Table 22 – ReadProcessedDetails . 36
Table 23 – NodesToRead and aggregateType parameters . 37
Table 24 – ReadAtTimeDetails . 37
Table 25 – ReadAnnotaionDataDetails . 38
Table 26 – HistoryData Details . 39
Table 27 – HistoryModifiedData Details . 39
Table 28 – HistoryEvent Details . 39
Table 29 – HistoryUpdateType Enumeration . 40
Table 30 – PerformUpdateType Enumeration . 40
Table 31 – HistoryUpdateDetails parameter TypeIds . 41
Table 32 – UpdateDataDetails . 42
Table 33 – UpdateStructureDataDetails . 43
Table 34 – UpdateEventDetails . 45
Table 35 – DeleteRawModifiedDetails . 47
Table 36 – DeleteAtTimeDetails . 47
Table 37 – DeleteEventDetails . 48
Table A.1 – Time keyword definitions . 50
Table A.2 –Time offset definitions . 50

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IEC 62541-11:2020 © IEC 2020 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

OPC UNIFIED ARCHITECTURE –

Part 11: Historical Access

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as "IEC
Publication(s)"). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
IEC 62541-11 has been prepared by subcommittee 65E: Devices and integration in enterprise
systems, of IEC technical committee 65: Industrial-process measurement, control and
automation.
This third edition cancels and replaces the second edition published in 2015. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) a new method for determining the first historical point has been added;
b) added clarifications on how to add, insert, modify, and delete annotations.

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The text of this standard is based on the following documents:
FDIS Report on voting
65E/710/FDIS 65E/728/RVD

Full information on the voting for the approval of this International Standard can be found in
the report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
Throughout this document and the other parts of the IEC 62541 series, certain document
conventions are used:
Italics are used to denote a defined term or definition that appears in the "Terms and
definition" clause in one of the parts of the IEC 62541 series.
Italics are also used to denote the name of a service input or output parameter or the name of
a structure or element of a structure that are usually defined in tables.
The italicized terms and names are, with a few exceptions, also written in camel-case (the
practice of writing compound words or phrases in which the elements are joined without
spaces, with each element's initial letter capitalized within the compound). For example the
defined term is AddressSpace instead of Address Space. This makes it easier to understand
that there is a single definition for AddressSpace, not separate definitions for Address and
Space.
A list of all parts of the IEC 62541 series, published under the general title OPC Unified
Architecture, can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.

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IEC 62541-11:2020 © IEC 2020 – 7 –
OPC UNIFIED ARCHITECTURE –

Part 11: Historical Access



1 Scope
This part of IEC 62541 is part of the OPC Unified Architecture standard series and defines the
information model associated with Historical Access (HA). It particularly includes additional
and complementary descriptions of the NodeClasses and Attributes needed for Historical
Access, additional standard Properties, and other information and behaviour.
The complete AddressSpace Model including all NodeClasses and Attributes is specified in
IEC 62541-3. The predefined Information Model is defined in IEC 62541-5. The Services to
detect and access historical data and events, and description of the ExtensibleParameter
types are specified in IEC 62541-4.
This document includes functionality to compute and return Aggregates like minimum,
maximum, average etc. The Information Model and the concrete working of Aggregates are
defined in IEC 62541-13.
2 Normative references
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.
IEC TR 62541-1, OPC Unified Architecture – Part 1: Overview and Concepts
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 62541-8, OPC Unified Architecture – Part 8: Data Access
IEC 62541-13, OPC Unified Architecture – Part 13: Aggregates
3 Terms, definitions, and abbreviated terms
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC TR 62541-1,
IEC 62541-3, IEC 62541-4, and IEC 62541-13 as well as the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp

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3.1.1
annotation
metadata associated with an item at a given instance in time
Note 1 to entry: An Annotation is metadata that is associated with an item at a given instance in time.
...