EN IEC 62682:2023

SLOVENSKI STANDARD
01-april-2023
Upravljanje alarmnih sistemov za procesno industrijo (IEC 62682:2022)
Management of alarm systems for the process industries (IEC 62682:2022)
Alarmmanagement in der Prozessindustrie (IEC 62682:2022)
Gestion de systèmes d'alarme dans les industries de transformation (IEC 62682:2022)
Ta slovenski standard je istoveten z: EN IEC 62682:2023
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 IEC 62682

NORME EUROPÉENNE
EUROPÄISCHE NORM January 2023
ICS 13.320; 25.040.40 Supersedes EN 62682:2015
English Version
Management of alarm systems for the process industries
(IEC 62682:2022)
Gestion de systèmes d'alarme dans les industries de Alarmmanagement in der Prozessindustrie
transformation (IEC 62682:2022)
(IEC 62682:2022)
This European Standard was approved by CENELEC on 2023-01-12. 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.
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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,
Türkiye 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
© 2023 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 62682:2023 E
European foreword
The text of document 65A/1046/FDIS, future edition 2 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 IEC 62682:2023.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2023-10-12
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2026-01-12
document have to be withdrawn
This document supersedes EN 62682:2015 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.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 62682:2022 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 standard indicated:
IEC 61508-4:2010 NOTE Harmonized as EN 61508-4:2010 (not modified)
IEC 61511 (series) NOTE Harmonized as EN 61511 (series)
IEC 61511-1 NOTE Harmonized as EN 61511-1
IEC 62264-2:2013 NOTE Harmonized as EN 62264-2:2013 (not modified)
IEC 62541-9:2020 NOTE Harmonized as EN IEC 62541-9:2020 (not modified)

IEC 62682 ®
Edition 2.0 2022-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Management of alarm systems for the process industries
Gestion de systèmes d’alarme dans les industries de transformation
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 13.320; 25.040.40 ISBN 978-2-8322-5885-9
– 2 – IEC 62682:2022 © IEC 2022
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 Annunciators . 13
1.2.4 Human machine interface . 13
1.2.5 Safety instrumented systems . 14
1.2.6 Fire and gas detection and protective systems . 14
1.2.7 Security systems . 14
1.2.8 Packaged systems . 14
1.2.9 Event data . 14
1.2.10 Alarm identification methods . 14
1.2.11 Management of change . 14
1.2.12 Purchase specification . 14
2 Normative references . 14
3 Terms, definitions and abbreviated terms . 15
3.1 Terms and definitions . 15
3.2 Abbreviated terms . 24
4 Conformance to this document . 25
4.1 Conformance guidance . 25
4.2 Existing systems . 25
4.3 Use of required functionalities . 25
4.4 Responsibility . 25
4.5 Local Jurisdictions . 25
5 Alarm system models . 25
5.1 Alarm systems . 25
5.2 Alarm management life cycle . 25
5.2.1 Alarm management life cycle model . 25
5.2.2 Alarm management life cycle stages . 26
5.2.3 Alarm management life cycle entry points . 29
5.2.4 Simultaneous and encompassing stages . 29
5.2.5 Alarm management life cycle loops . 29
5.2.6 Alarm management life cycle stage inputs and outputs . 30
5.3 Alarm states . 31
5.3.1 Alarm state transition diagram . 31
5.3.2 Alarm states . 32
5.3.3 Alarm state transition paths . 34
5.4 Alarm response timeline . 35
5.4.1 General . 35
5.4.2 Normal (A) . 36
5.4.3 Unacknowledged (B) . 36
5.4.4 Acknowledged (C) and response . 36
5.4.5 Return-to-normal (D). 37

IEC 62682:2022 © IEC 2022 – 3 –
5.4.6 Allowable response time . 37
5.4.7 Alarm setpoint . 37
5.4.8 Consequence threshold . 37
5.4.9 Alarm deadband . 37
5.5 Feedback model of operator-process interaction . 37
5.5.1 General . 37
5.5.2 Detect . 38
5.5.3 Diagnose . 38
5.5.4 Respond . 38
5.5.5 Performance shaping factors . 38
6 Alarm philosophy . 39
6.1 Purpose . 39
6.2 Alarm philosophy contents . 39
6.2.1 General . 39
6.2.2 Purpose of alarm system . 40
6.2.3 Definitions . 40
6.2.4 References . 40
6.2.5 Roles and responsibilities for alarm management . 40
6.2.6 Alarm design principles . 40
6.2.7 Alarm setpoint determination . 41
6.2.8 Prioritization method . 41
6.2.9 Alarm class definition. 41
6.2.10 Highly managed alarms . 41
6.2.11 Rationalization . 41
6.2.12 Alarm documentation . 42
6.2.13 Alarm design guidance . 42
6.2.14 Specific alarm design considerations . 42
6.2.15 HMI design principles . 42
6.2.16 Approved enhanced and advanced alarming techniques . 43
6.2.17 Implementation guidance . 43
6.2.18 Alarm response procedures . 43
6.2.19 Training . 43
6.2.20 Alarm shelving . 43
6.2.21 Alarm system maintenance . 43
6.2.22 Testing of alarms . 43
6.2.23 Alarm system performance monitoring . 44
6.2.24 Alarm history preservation . 44
6.2.25 Management of change . 44
6.2.26 Alarm management audit . 44
6.2.27 Related site procedures . 44
6.3 Alarm philosophy development and maintenance . 45
7 Alarm system requirements specification . 45
7.1 Purpose . 45
7.2 Recommendations . 45
7.3 Development . 46
7.4 Systems evaluation . 46
7.5 Packaged systems . 46
7.6 Customization . 46
7.7 Alarm system requirements verification . 46

– 4 – IEC 62682:2022 © IEC 2022
8 Identification . 46
8.1 Purpose . 46
8.2 Alarm identification methods . 47
8.3 Identification training . 47
8.4 Identification documentation . 47
9 Rationalization . 47
9.1 Purpose . 47
9.2 Rationalization documentation . 48
9.2.1 Rationalization documentation requirements . 48
9.2.2 Rationalization documentation recommendations . 48
9.2.3 Plant states . 48
9.3 Alarm justification . 48
9.3.1 Alarm justification process . 48
9.3.2 Justification approach . 49
9.3.3 Individual alarm justification . 49
9.3.4 Impact on alarm system performance . 49
9.4 Alarm setpoint determination. 49
9.5 Prioritization . 50
9.6 Classification . 50
9.7 Review . 50
9.8 Removal of rejected alarms . 50
9.9 Documentation . 50
10 Detailed design: basic alarm design . 50
10.1 Purpose . 50
10.2 Basic alarm design capabilities . 51
10.3 Usage of alarm states . 51
10.3.1 Alarm state triggering . 51
10.3.2 Alarm states and other logic functions . 51
10.3.3 Alarm suppression and other logic functions . 51
10.4 Alarm types . 51
10.5 Alarm attributes . 52
10.5.1 General . 52
10.5.2 Alarm description . 52
10.5.3 Alarm setpoints . 52
10.5.4 Alarm priority . 52
10.5.5 Alarm deadbands . 52
10.5.6 Alarm on-delay and off-delay . 53
10.6 Programmatic changes to alarm attributes . 53
10.7 Review of basic alarm design . 53
11 Detailed design: human-machine interface design for alarm systems . 54
11.1 Purpose . 54
11.2 HMI functions . 54
11.2.1 General . 54
11.2.2 HMI information requirements . 54
11.2.3 HMI functional requirements . 54
11.2.4 HMI functional recommendations . 54
11.2.5 HMI display requirements . 54
11.2.6 Alarm records requirements . 55

IEC 62682:2022 © IEC 2022 – 5 –
11.2.7 Alarm records recommendations . 55
11.3 Alarm states indications . 55
11.3.1 General . 55
11.3.2 Required alarm state indications . 55
11.3.3 Recommended alarm state indications . 55
11.3.4 Audible alarm state indications . 57
11.4 Alarm priority indications . 57
11.4.1 General . 57
11.4.2 Alarm priority indication requirements . 57
11.4.3 Colour alarm priority indications requirements . 57
11.4.4 Recommended alarm priority indications . 57
11.5 Alarm message indications . 58
11.5.1 General . 58
11.5.2 Recommended alarm message indications . 58
11.6 Alarm displays . 58
11.6.1 General . 58
11.6.2 Alarm summary display . 59
11.6.3 Alarm summary status . 60
11.6.4 Alarm log displays . 60
11.6.5 Process displays. 61
11.6.6 Tag detail displays . 61
11.6.7 Other graphic elements . 61
11.7 Alarm shelving . 61
11.7.1 General . 61
11.7.2 Alarm shelving functional requirements. 61
11.7.3 Alarm shelving functional recommendations . 62
11.7.4 Shelved alarm displays . 62
11.8 Out-of-service alarms . 62
11.8.1 General . 62
11.8.2 Out-of-service alarm functional requirements . 63
11.8.3 Out-of-service alarm displays . 63
11.9 Alarms suppressed by design . 63
11.9.1 General . 63
11.9.2 Designed suppression functional requirements . 64
11.9.3 Designed suppression functional recommendations . 64
11.9.4 Suppressed-by-design displays . 64
11.10 Alarm annunciator integration . 65
11.10.1 General . 65
11.10.2 Alarm annunciator integration recommendations . 65
11.10.3 Alarm annunciator display integration recommendations . 65
11.11 Safety related alarm HMI . 65
11.11.1 General . 65
11.11.2 Independent safety related alarm HMI . 65
12 Detailed design: enhanced and advanced alarming . 65
12.1 Purpose . 65
12.2 Basis of enhanced and advanced alarming . 66
12.2.1 General . 66
12.2.2 Effort, manpower requirements and complexity . 66
12.3 Information linking . 66

– 6 – IEC 62682:2022 © IEC 2022
12.4 Logic-based alarming . 66
12.4.1 General . 66
12.4.2 Alarm attribute modification . 66
12.4.3 Externally enabled systems . 66
12.4.4 Logical alarm suppression and attribute modification . 66
12.4.5 State-based alarming . 66
12.5 Model-based alarming . 67
12.6 Additional alarming considerations . 67
12.6.1 General . 67
12.6.2 Remote alarm systems . 67
12.6.3 Supplementary alarm systems . 67
12.6.4 Batch process considerations . 67
12.7 Training, testing, and auditing systems . 68
12.8 Alarm attribute enforcement . 68
13 Implementation . 68
13.1 Purpose . 68
13.2 Implementation planning . 68
13.3 Implementation training . 69
13.3.1 General . 69
13.3.2 Implementation training requirements for new or modified alarms . 69
13.3.3 Training documentation requirements for new or modified highly

managed alarms . 69
13.3.4 Training documentation recommendations for new or modified alarms . 69
13.3.5 Implementation training requirements for new or modified alarm
systems . 69
13.3.6 Implementation training recommendations for new or modified alarm
systems . 69
13.4 Implementation testing and verification . 69
13.4.1 General . 69
13.4.2 Implementation testing requirements for highly managed alarms . 70
13.4.3 Implementation testing recommendations for new or modified alarms . 70
13.4.4 Implementation testing requirements for new or modified alarm systems . 70
13.5 Implementation documentation . 70
13.5.1 General . 70
13.5.2 Documentation requirements . 70
13.5.3 Implementation documentation recommendations . 71
14 Operation . 71
14.1 Purpose . 71
14.2 Alarm response procedures . 71
14.2.1 Alarm response procedures requirements . 71
14.2.2 Alarm response procedure recommendations . 71
14.3 Alarm shelving . 72
14.3.1 Alarm shelving requirements . 72
14.3.2 Alarm shelving for highly managed alarms . 72
14.3.3 Alarm shelving recommendations . 72
14.3.4 Alarm shelving record requirements . 72
14.3.5 Shift change procedures and alarm review . 72
14.4 Refresher training for operators . 72
14.4.1 Refresher training requirements for operators . 72

IEC 62682:2022 © IEC 2022 – 7 –
14.4.2 Refresher training documentation requirements for highly managed
alarms . 72
14.4.3 Refresher training content for highly managed alarms . 73
14.4.4 Refresher training recommendations for alarms . 73
15 Maintenance . 73
15.1 Purpose . 73
15.2 Periodic alarm testing . 73
15.2.1 General . 73
15.2.2 Periodic alarm testing requirements . 73
15.2.3 Periodic alarm testing for highly managed alarms . 73
15.2.4 Periodic alarm test procedure requirements . 74
15.2.5 Periodic alarm test procedure recommendations . 74
15.2.6 Periodic alarm testing recommendations . 74
15.3 Out-of-service alarms . 74
15.3.1 General . 74
15.3.2 Out-of-service process requirements . 74
15.3.3 Out-of-service highly managed alarms . 74
15.3.4 Out-of-service process recommendations . 75
15.3.5 Requirements for returning alarms to service . 75
15.4 Equipment repair . 75
15.5 Equipment replacement . 75
15.6 Refresher training for maintenance . 75
15.6.1 General requirements . 75
15.6.2 Refresher training requirements for highly managed alarms . 75
15.6.3 Refresher training recommendations for alarms . 75
16 Monitoring and assessment . 75
16.1 Purpose . 75
16.2 Performance monitoring requirements . 76
16.3 Monitoring and assessment . 76
16.3.1 General . 76
16.3.2 Alarm system performance metrics . 76
16.3.3 Average alarm rate per operator console . 76
16.3.4 Peak alarm rate per operator console . 77
16.3.5 Alarm floods . 77
16.3.6 Frequently occurring alarms . 77
16.3.7 Chattering and fleeting alarms . 77
16.3.8 Stale alarms . 78
16.3.9 Annunciated alarm priority distribution . 78
16.3.10 Rationalization and alarm priority distribution . 78
16.4 Unauthorized alarm suppression . 78
16.5 Alarm attribute monitoring . 79
16.6 Reporting of alarm system analyses . 79
16.7 Alarm performance metric summary . 79
17 Management of change . 79
17.1 Purpose . 79
17.2 Changes subject to management of change . 80
17.3 Change documentation requirements . 80
17.4 Alarm removal recommendations . 80
17.5 Alarm documentation review recommendations . 80

– 8 – IEC 62682:2022 © IEC 2022
18 Audit . 80
18.1 Purpose . 80
18.2 Benchmark . 80
18.3 Audit requirements . 81
18.4 Audit interviews . 81
18.5 Audit process recommendations . 81
18.6 Action plans . 81
Bibliography . 82

Figure 1 – Alarm system dataflow . 13
Figure 2 – Alarm management life cycle . 26
Figure 3 – Alarm state transition diagram . 32
Figure 4 – Alarm response timeline . 36
Figure 5 – Feedback model of operator-process interaction . 38

Table 1 – Alarm management life cycle stage inputs and outputs . 31
Table 2 – Summary of alarm states . 34
Table 3 – Required and recommended alarm philosophy contents . 39
Table 4 – Recommended alarm state indications . 57
Table 5 – Average alarm rates . 77
Table 6 – Example annunciated alarm priority distribution . 78
Table 7 – Recommended alarm performance metrics summary . 79

IEC 62682:2022 © IEC 2022 – 9 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
MANAGEMENT OF ALARM SYSTEMS
FOR THE PROCESS INDUSTRIES
FOREWORD
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