EN 62541-9:2015

OPC unified architecture - Part 9: Alarms and conditions

IEC 62541-9:2015 specifies the representation of Alarms and Conditions in the OPC Unified Architecture. Included is the Information Model representation of Alarms and Conditions in the OPC UA address space. This second edition cancels and replaces the first edition published in 2012 and constitutes a technical revision. This edition includes the following changes: - added section to describe expect behaviour for A&C servers and the associated information model in the case of redundancy or communication faults; - changed the DialogConditionType to be not abstract since it is expect that instance of this type will exist in the system; - updated ConditionRefresh Method to allow the use of the well know NodeIds associated with the types for the MethodId and ConditionId instead of requiring the call to use only the MethodId and ConditionId that is part of an instance; - Fixed ExclusiveLimitStateMachineType and ShelvedStatemachineType to be sub-types of FinitStateMachineType not StateMachineType.

OPC Unified Architecture - Teil 9: Alarme und Zustände

Architecture unifiée OPC - Partie 9: Alarmes et conditions

L'IEC 62541-9:2015 spécifie la représentation des Alarms (alarmes) et des Conditions dans l'architecture unifiée OPC, y compris la représentation du Information Model (modèle d'informations) relative aux Alarms et Conditions dans l'espace d'adresses d'OPC UA. Cette deuxième édition annule et remplace la première édition parue en 2012. Elle constitue une révision technique. Cette édition inclut les modifications suivantes: - ajout d'une section pour décrire le comportement attendu pour les serveurs A&C et le modèle d'informations associé en cas de redondance ou de défauts de communication; - modification du DialogConditionType afin qu'il ne soit pas abstrait; - mise à jour de la méthode ConditionRefresh pour permettre l'utilisation des NodeIds bien connus associés aux types pour MethodId et ConditionId; - ExclusiveLimitStateMachineType et ShelvedStatemachineType déclarés être des sous-types de FinitStateMachineType, et non de StateMachineType.

Enotna arhitektura OPC - 9. del: Alarmi in pogoji (IEC 62541-9:2015)

Ta del standarda IEC 62541 določa upodobitev alarmov in pogojev v enotni arhitekturi OPC. Vključena je predstavitev informacijskega modela alarmov in pogojev v naslovnem prostoru OPC UA.

General Information

• Status: Withdrawn
• Publication Date: 14-May-2015
• Withdrawal Date: 28-Apr-2018
• ICS: 25.040.40 - Industrial process measurement and control
• ICS: 35.100 - Open systems interconnection (OSI)
• Technical Committee: CLC/TC 65X - Industrial-process measurement, control and automation
• Drafting Committee: IEC/SC 65E - IEC_SC_65E
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Start Date: 23-Jul-2023
• Completion Date: 23-Jul-2023
• Mandate: M/490 - Standardisation mandate to the European Standardisation Organisations (ESOs) to support European Smart Grid deployment
• Ref Project: SIST EN 62541-9:2015 - OPC Unified Architecture -- Part 9: Alarms and conditions (IEC 62541-9:2015)

Relations

• Replaces: EN 62541-9:2012 - OPC unified architecture - Part 9: Alarms and conditions
• Effective Date: 28-Jan-2023
• Replaced By: EN IEC 62541-9:2020 - OPC Unified Architecture - Part 9: Alarms and Conditions
• Effective Date: 11-Aug-2020

Standards Content (Sample)

SLOVENSKI STANDARD
01-september-2015
1DGRPHãþD
SIST EN 62541-9:2012
Enotna arhitektura OPC - 9. del: Alarmi in pogoji (IEC 62541-9:2015)
OPC Unified Architecture -- Part 9: Alarms and conditions (IEC 62541-9:2015)
OPC Unified Architecture - Teil 9: Alarme und Zustände (IEC 62541-9:2015)
Architecture unifiée OPC - Partie 9: Alarmes et conditions (IEC 62541-9:2015)
Ta slovenski standard je istoveten z: EN 62541-9:2015
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 62541-9
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2015
ICS 25.040.40; 35.100 Supersedes EN 62541-9:2012
English Version
OPC unified architecture - Part 9: Alarms and conditions
(IEC 62541-9:2015)
Architecture unifiée OPC - Partie 9: Alarmes et conditions OPC Unified Architecture - Teil 9: Alarme und Zustände
(IEC 62541-9:2015) (IEC 62541-9:2015)
This European Standard was approved by CENELEC on 2015-04-29. 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, 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: Avenue Marnix 17, B-1000 Brussels
© 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 62541-9:2015 E
Foreword
The text of document 65E/382/CDV, future edition 2 of IEC 62541-9, 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 (dop) 2016-01-29
national level by publication of an identical national
standard or by endorsement
(dow) 2018-04-29
• latest date by which the national standards conflicting with
the document have to be withdrawn

This document supersedes EN 62541-9:2012.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] 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, and supports essential requirements of EU Directive(s).
Endorsement notice
The text of the International Standard IEC 62541-9:2015 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 62541-7 NOTE Harmonized as EN 62541-7.
IEC 62541-11 NOTE Harmonized as EN 62541-11.

- 3 - EN 62541-9:2015
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
NOTE 1 When 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 - CLC/TR 62541-1 -
Part 1: Overview and concepts
IEC 62541-3 -  OPC unified architecture - EN 62541-3 -
Part 3: Address Space Model
IEC 62541-4 -  OPC Unified Architecture - EN 62541-4 -
Part 4: Services
IEC 62541-5 -  OPC unified architecture - EN 62541-5 -
Part 5: Information Model
IEC 62541-6 -  OPC unified architecture - EN 62541-6 -
Part 6: Mappings
IEC 62541-8 -  OPC Unified Architecture - EN 62541-8 -
Part 8: Data Access
EEMUA 191  Alarm systems - A guide to design, - -
management and procurement
IEC 62541-9 ®
Edition 2.0 2015-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
OPC unified architecture –
Part 9: Alarms and conditions
Architecture unifiée OPC –
Partie 9: Alarmes et conditions

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 25.040.40; 35.100 ISBN 978-2-8322-2382-6

– 2 – IEC 62541-9:2015 © IEC 2015
CONTENTS
FOREWORD . 8
1 Scope . 10
2 Normative references. 10
3 Terms, definitions, and abbreviations . 10
3.1 Terms and definitions . 10
3.2 Abbreviations and symbols . 12
3.3 Used data types . 12
4 Concepts . 12
4.1 General . 12
4.2 Conditions. 12
4.3 Acknowledgeable Conditions . 14
4.4 Previous states of Conditions . 15
4.5 Condition state synchronization . 16
4.6 Severity, Quality, and Comment . 16
4.7 Dialogs . 17
4.8 Alarms . 17
4.9 Multiple Active States . 18
4.10 Condition Instances in the Address Space . 19
4.11 Alarm and Condition Auditing . 19
5 Model . 19
5.1 General . 19
5.2 Two-State State Machines . 20
5.3 Condition Variables . 21
5.4 Substate Reference Types . 22
5.4.1 General . 22
5.4.2 HasTrueSubState ReferenceType . 22
5.4.3 HasFalseSubState ReferenceType . 23
5.5 Condition Model . 23
5.5.1 General . 23
5.5.2 ConditionType . 24
5.5.3 Condition and Branch Instances . 27
5.5.4 Disable Method . 27
5.5.5 Enable Method . 28
5.5.6 AddComment Method . 28
5.5.7 ConditionRefresh Method . 29
5.6 Dialog Model . 31
5.6.1 General . 31
5.6.2 DialogConditionType . 31
5.6.3 Respond Method . 32
5.7 Acknowledgeable Condition Model . 33
5.7.1 General . 33
5.7.2 AcknowledgeableConditionType . 33
5.7.3 Acknowledge Method . 34
5.7.4 Confirm Method . 35
5.8 Alarm Model . 36
5.8.1 General . 36

IEC 62541-9:2015 © IEC 2015 – 3 –
5.8.2 AlarmConditionType . 37
5.8.3 ShelvedStateMachineType . 39
5.8.4 LimitAlarmType . 43
5.8.5 ExclusiveLimit Types . 44
5.8.6 NonExclusiveLimitAlarmType . 46
5.8.7 Level Alarm . 48
5.8.8 Deviation Alarm . 48
5.8.9 Rate of Change . 49
5.8.10 Discrete Alarms . 50
5.9 ConditionClasses . 52
5.9.1 Overview . 52
5.9.2 Base ConditionClassType . 52
5.9.3 ProcessConditionClassType . 53
5.9.4 MaintenanceConditionClassType . 53
5.9.5 SystemConditionClassType . 53
5.10 Audit Events . 53
5.10.1 Overview . 53
5.10.2 AuditConditionEventType . 54
5.10.3 AuditConditionEnableEventType . 55
5.10.4 AuditConditionCommentEventType . 55
5.10.5 AuditConditionRespondEventType . 55
5.10.6 AuditConditionAcknowledgeEventType .
...