SIST EN 62682:2015

SLOVENSKI STANDARD
01-junij-2015
Upravljanje alarmov za procesno industrijo (IEC 62682:2014)
Management of alarms for the process industries (IEC 62682:2014)
Alarmmanagement in der Prozessindustrie (IEC 62682:2014)
Gestion de systèmes d'alarme dans les industries de transformation (IEC 62682:2014)
Ta slovenski standard je istoveten z: EN 62682:2015
ICS:
13.320 Alarmni in opozorilni sistemi Alarm and warning systems
25.040.01 Sistemi za avtomatizacijo v Industrial automation
industriji na splošno systems in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 62682
NORME EUROPÉENNE
EUROPÄISCHE NORM
January 2015
ICS 13.320; 25.040
English Version
Management of alarms systems for the process industries
(IEC 62682:2014)
Gestion de systèmes d'alarme dans les industries de Alarmmanagement in der Prozessindustrie
transformation (IEC 62682:2014)
(IEC 62682:2014)
This European Standard was approved by CENELEC on 2014-11-19. 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 62682:2015 E
Foreword
The text of document 65A/704/FDIS, future edition 1 of IEC 62682, prepared by SC 65A "System
aspects" of IEC/TC 65 "Industrial-process measurement, control and automation" was submitted to the
IEC-CENELEC parallel vote and approved by CENELEC as EN 62682:2015.

The following dates are fixed:
(dop) 2015-08-19
• latest date by which the document has to be
implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2017-11-19
standards conflicting with the
document have to be withdrawn
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.
Endorsement notice
The text of the International Standard IEC 62682:2014 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 61511 Series NOTE Harmonized as EN 61511 Series (not modified).
IEC 61511-1 NOTE Harmonized as EN 61511-1.
IEC 62541-9 NOTE Harmonized as EN 62541-9.

IEC 62682 ®
Edition 1.0 2014-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Management of alarms systems for the process industries

Gestion de systèmes d'alarme dans les industries de transformation

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
XC
CODE PRIX
ICS 13.320; 25.040 ISBN 978-2-8322-1868-6

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CONTENTS
FOREWORD . 9
INTRODUCTION . 11
1 Scope . 12
1.1 General applicability . 12
1.2 Exclusions and inclusions . 13
1.2.1 Operators . 13
1.2.2 Process sensors and final control elements . 13
1.2.3 Safety instrumented systems . 13
1.2.4 Event data . 13
1.2.5 Alarm identification methods . 14
1.2.6 Management of change . 14
2 Normative references. 14
3 Terms, definitions, and abbreviations . 14
3.1 Terms and definitions . 14
3.2 Abbreviations . 22
4 Conformance to this standard . 22
4.1 Conformance guidance . 22
4.2 Existing systems . 23
4.3 Responsibility . 23
5 Alarm system models . 23
5.1 Alarm systems . 23
5.2 Alarm management lifecycle . 23
5.2.1 Alarm management lifecycle model . 23
5.2.2 Alarm management lifecycle stages . 24
5.2.3 Alarm lifecycle entry points . 27
5.2.4 Simultaneous and encompassing stages . 27
5.2.5 Alarm management lifecycle loops . 27
5.2.6 Alarm management lifecycle stage inputs and outputs . 28
5.3 Alarm states . 29
5.3.1 Alarm state transition diagram . 29
5.3.2 Alarm states. 30
5.3.3 Alarm state transition paths . 31
5.4 Alarm response timeline . 32
5.4.1 General . 32
5.4.2 Normal (A) . 33
5.4.3 Unacknowledged (B) . 33
5.4.4 Acknowledged (C) and response . 33
5.4.5 Return-to-normal (D) . 34
5.4.6 Consequence threshold . 34
5.5 Feedback model of operator-process interaction . 34
5.5.1 General . 34
5.5.2 Detect . 35
5.5.3 Diagnose . 35
5.5.4 Respond . 35
5.5.5 Performance shaping factors . 35
6 Alarm philosophy . 35

IEC 62682:2014 © IEC 2014 – 3 –
6.1 Purpose . 35
6.2 Alarm philosophy contents . 35
6.2.1 General . 35
6.2.2 Purpose of alarm system . 36
6.2.3 Definitions . 37
6.2.4 References . 37
6.2.5 Roles and responsibilities for alarm management . 37
6.2.6 Alarm design principles . 37
6.2.7 Rationalization . 37
6.2.8 Alarm class definition . 37
6.2.9 Highly managed alarms . 38
6.2.10 HMI design principles . 38
6.2.11 Prioritization method . 38
6.2.12 Alarm setpoint determination . 39
6.2.13 Alarm system performance monitoring . 39
6.2.14 Alarm system maintenance . 39
6.2.15 Testing of the alarm system . 39
6.2.16 Approved enhanced and advanced alarming techniques . 39
6.2.17 Alarm documentation . 39
6.2.18 Implementation guidance . 40
6.2.19 Management of change . 40
6.2.20 Training . 40
6.2.21 Alarm history preservation . 40
6.2.22 Related site procedures . 40
6.2.23 Specific alarm design considerations . 41
6.2.24 Alarm system audit . 41
6.3 Alarm philosophy development and maintenance . 41
7 Alarm system requirements specification . 41
7.1 Purpose . 41
7.2 Recommendations. 42
7.3 Development . 42
7.4 Systems evaluation . 42
7.5 Customization . 43
7.6 Alarm system requirements testing . 43
8 Identification . 43
8.1 Purpose . 43
8.2 Alarm identification methods . 43
8.3 Identification training . 43
9 Rationalization . 43
9.1 Purpose . 43
9.2 Rationalization documentation . 44
9.2.1 Rationalization documentation requirements . 44
9.2.2 Rationalization documentation recommendations . 44
9.3 Alarm justification . 44
9.3.1 Alarm justification process . 44
9.3.2 Justification approach . 44
9.3.3 Individual alarm justification . 45
9.3.4 Impact on alarm system . 45
9.4 Alarm setpoint determination . 45

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9.5 Prioritization . 45
9.6 Removal . 45
9.7 Classification . 46
9.8 Review . 46
9.9 Use of documentation. 46
10 Detailed design: Basic alarm design . 46
10.1 Purpose . 46
10.2 Usage of alarm states . 46
10.2.1 Alarm state triggering . 46
10.2.2 Alarm states and other logic functions . 46
10.2.3 Alarm suppression and other logic functions . 47
10.3 Alarm types . 47
10.4 Alarm attributes . 47
10.4.1 General . 47
10.4.2 Alarm description . 48
10.4.3 Alarm setpoints . 48
10.4.4 Alarm priority . 48
10.4.5 Alarm deadbands . 48
10.4.6 Alarm on-delay and off-delay . 48
10.5 Programmatic changes to alarm attributes . 49
10.6 Review basic alarm design . 49
11 Detailed design: Human-machine interface design for alarm systems . 49
11.1 Purpose . 49
11.2 HMI functions . 49
11.2.1 General . 49
11.2.2 HMI information requirements . 49
11.2.3 HMI functional requirements . 50
11.2.4 HMI display requirements . 50
11.2.5 Alarm records requirements . 50
11.2.6 Alarm records recommendations . 50
11.3 Alarm states indications . 50
11.3.1 General . 50
11.3.2 Required alarm state indications . 51
11.3.3 Recommended alarm state indications . 51
11.3.4 Audible alarm state indications . 52
11.4 Alarm priority indications . 52
11.4.1 General . 52
11.4.2 Alarm priority indication requirements . 52
11.4.3 Colour alarm priority indications requirements . 52
11.4.4 Recommended alarm priority indications . 53
11.5 Alarm message indications . 53
11.5.1 General . 53
11.5.2 Recommended alarm message indications . 53
11.6 Alarm displays . 53
11.6.1 General . 53
11.6.2 Alarm summary display . 54
11.6.3 Alarm summary status . 55
11.6.4 Alarm log displays . 55
11.6.5 Process displays . 56

IEC 62682:2014 © IEC 2014 – 5 –
11.6.6 Tag detail displays . 56
11.6.7 Other display elements . 56
11.7 Alarm shelving . 56
11.7.1 General . 56
11.7.2 Alarm shelving functional requirements . 56
11.7.3 Alarm shelving functional recommendations. 57
11.7.4 Shelved alarm displays . 57
11.8 Out-of-service alarms . 57
11.8.1 General . 57
11.8.2 Out-of-service alarm functional requirements . 58
11.8.3 Out-of-service alarm displays . 58
11.9 Alarms suppressed by design . 58
11.9.1 General . 58
11.9.2 Designed suppression functional requirements . 58
11.9.3 Design suppression functional recommendations . 59
11.9.4 Suppressed-by-design displays . 59
11.10 Alarm annunciator integration . 59
11.10.1 General . 59
11.10.2 Alarm annunciator integration recommendations . 59
11.10.3 Alarm annunciator display integration recommendations . 60
11.11 Safety alarm HMI . 60
11.11.1 General . 60
11.11.2 Independent safety alarm HMI . 60
12 Detailed design: Enhanced and advanced alarm methods . 60
12.1 Purpose . 60
12.2 Basis of enhanced and advanced alarming . 60
12.2.1 General . 60
12.2.2 Effort, manpower requirements and complexity . 60
12.3 Information linking . 61
12.4 Logic-based alarming . 61
12.4.1 General . 61
12.4.2 Alarm attribute modification . 61
12.4.3 Externally enabled systems . 61
12.4.4 Logical alarm suppression and attribute modification . 61
12.4.5 State-based alarming . 61
12.5 Model-based alarming . 61
12.6 Additional alarming considerations . 62
12.6.1 General . 62
12.6.2 Non-control room considerations . 62
12.6.3 Remote alarm systems . 62
12.6.4 Supplementary alarm systems . 62
12.6.5 Batch process considerations . 62
12.7 Training, testing, and auditing systems . 63
12.8 Alarm attribute enforcement . 63
13 Implementation . 63
13.1 Purpose . 63
13.2 Implementation planning . 63
13.3 Implementation training . 63
13.3.1 General . 63

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13.3.2 Implementation training . 63
13.3.3 Implementation training requirements . 64
13.3.4 Training documentation requirements for highly managed alarms . 64
13.3.5 Training documentation recommendations . 64
13.3.6 Implementation training requirements for new or modified alarm
systems . 64
13.3.7 Implementation training recommendations for new or modified alarm
systems . 64
13.4 Implementation testing and validation . 64
13.4.1 General . 64
13.4.2 Implementation testing requirements for highly managed alarms . 64
13.4.3 Implementation testing recommendations for new or modified alarms . 65
13.4.4 Implementation testing requirements for new or modified alarm systems . 65
13.5 Implementation documentation . 65
13.5.1 General . 65
13.5.2 Documentation requirements . 65
13.5.3 Implementation documentation recommendations . 65
14 Operation . 66
14.1 Purpose . 66
14.2 Alarm response procedures . 66
14.2.1 Alarm response procedures requirements . 66
14.2.2 Alarm response procedure recommendations . 66
14.3 Alarm shelving . 66
14.3.1 Alarm shelving requirements . 66
14.3.2 Alarm shelving for highly managed alarms . 67
14.3.3 Alarm shelving recommendations . 67
14.3.4 Alarm shelving record requirements . 67
14.4 Refresher training for operators . 67
14.4.1 Refresher training requirements for operators . 67
14.4.2 Refresher training documentation for highly managed alarms . 67
14.4.3 Refresher training content for highly managed alarms . 67
14.4.4 Refresher training recommendations for alarms . 67
15 Maintenance . 68
15.1 Purpose . 68
15.2 Periodic alarm testing . 68
15.2.1 General . 68
15.2.2 Periodic alarm testing requirements . 68
15.2.3 Periodic alarm testing for highly managed alarms . 68
15.2.4 Periodic alarm test procedure requirements . 68
15.2.5 Periodic alarm test procedure recommendations . 68
15.2.6 Periodic alarm testing recommendations . 69
15.3 Out-of-service alarms . 69
15.3.1 General . 69
15.3.2 Out-of-service process requirements . 69
15.3.3 Out-of-service highly managed alarms . 69
15.3.4 Out-of-service process recommendations . 69
15.3.5 Requirements for returning alarms to service . 69
15.4 Equipment repair . 69
15.5 Equipment replacement . 70

IEC 62682:2014 © IEC 2014 – 7 –
15.6 Refresher training for maintenance . 70
15.6.1 General requirements . 70
15.6.2 Refresher training requirements for highly managed alarms . 70
15.6.3 Refresher training recommendations for alarms . 70
16 Monitoring and assessment . 70
16.1 Purpose . 70
16.2 Requirements . 70
16.3 Monitoring, assessment, audit, and benchmark . 70
16.4 Alarm system monitoring . 71
16.5 Alarm system performance metrics . 71
16.5.1 General . 71
16.5.2 Average alarm rate per operator console . 71
16.5.3 Peak alarm rate per operator console . 72
16.5.4 Alarm floods. 72
16.5.5 Frequently occurring alarms . 73
16.5.6 Chattering and fleeting alarms . 73
16.5.7 Stale alarms. 73
16.5.8 Annunciated alarm priority distribution . 73
16.5.9 Alarm priority distribution . 74
16.6 Unauthorized alarm suppression . 74
16.7 Alarm attribute monitoring . 74
16.8 Reporting of alarm system analyses . 74
16.9 Alarm performance metric summary . 74
17 Management of change . 75
17.1 Purpose . 75
17.2 Changes subject to management of change . 75
17.3 Change documentation requirements . 76
17.4 Change documentation recommendations . 76
17.5 Alarm removal recommendations . 76
17.6 Alarm attribute modification recommendations . 76
18 Audit . 77
18.1 Purpose . 77
18.2 Benchmark . 77
18.2.1 General . 77
18.2.2 Initial audit or benchmark requirements . 77
18.3 Audit interviews . 77
18.4 Audit recommendations . 77
18.5 Action plans . 78
Bibliography . 79

Figure 1 – Alarm system dataflow . 13
Figure 2 – Alarm management lifecycle . 24
Figure 3 – Alarm state transition diagram . 29
Figure 4 – Alarm response timeline . 33
Figure 5 – Feedback model of operator-process interaction . 35

Table 1 – Alarm management lifecycle stage inputs and outputs . 28

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Table 2 – Alarm states . 31
Table 3 – Required and recommended alarm philosophy content . 36
Table 4 – Recommended alarm state indications . 52
Table 5 – Average alarm rates . 72
Table 6 – Annunciated alarm priority distribution . 73
Table 7 – Recommended alarm performance metrics summary . 75

IEC 62682:2014 © IEC 2014 – 9 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
MANAGEMENT OF ALARMS SYSTEMS FOR THE PROCESS INDUSTRIES

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
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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.
International Standard IEC 62682 has been prepared by subcommittee 65A: System aspects,
of IEC technical committee 65: Industrial-process measurement, control and automation.
The text of this standard is based on the following documents:
FDIS Report on voting
65A/704/FDIS 65A/706/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

– 10 – IEC 62682:2014 © IEC 2014

The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
IEC 62682:2014 © IEC 2014 – 11 –
INTRODUCTION
Purpose
This International Standard addresses the development, design, installation, and management
of alarm systems in the process industries. Alarm management includes multiple work
processes throughout the alarm system lifecycle. This standard defines the terminology and
models to develop an alarm system, and it defines the work processes recommended to
effectively maintain the alarm system throughout the lifecycle.
This standard was adapted from ANSI/ISA-18.2-2009, Management of Alarm Systems for the
Process Industries, an International Society of Automation (ISA) standard, and with due
consideration of other guidance documents that have been developed throughout industry.
Ineffective alarm systems have often been cited as contributing factors in the investigation
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