IEC 62453-2:2022

Field device tool (FDT) interface specification - Part 2: Concepts and detailed description

IEC 62453-2:2022 explains the common principles of the field device tool concept. These principles can be used in various industrial applications such as engineering systems, configuration programs and monitoring and diagnostic applications. This document specifies the general objects, general object behavior and general object interactions that provide the base of FDT.

Spécification des interfaces des outils des dispositifs de terrain (FDT) - Partie 2: Concepts et description détaillée

IEC 62453-2:2022 explains the common principles of the field device tool concept. These principles can be used in various industrial applications such as engineering systems, configuration programs and monitoring and diagnostic applications. This document specifies the general objects, general object behavior and general object interactions that provide the base of FDT.

General Information

• Status: Published
• Publication Date: 30-Aug-2022
• ICS: 25.040.40 - Industrial process measurement and control
• ICS: 35.100.05 - Multilayer applications
• ICS: 35.110 - Networking
• Technical Committee: SC 65E - Devices and integration in enterprise systems
• Current Stage: PPUB - Publication issued
• Start Date: 02-Sep-2022
• Completion Date: 31-Aug-2022

Relations

• Revises: IEC 62453-2:2016 - Field device tool (FDT) interface specification - Part 2: Concepts and detailed description
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 62453-2 ®
Edition 3.0 2022-08
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Field device tool (FDT) interface specification –
Part 2: Concepts and detailed description

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

IEC Secretariat Tel.: [phone]
3, rue de Varembé [e-mail]
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Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

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IEC 62453-2 ®
Edition 3.0 2022-08
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Field device tool (FDT) interface specification –
Part 2: Concepts and detailed description
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 25.040.40; 35.100.05; 35.110 ISBN 978-2-8322-5652-7

– 2 – IEC 62453-2:2022 RLV © IEC 2022
CONTENTS
FOREWORD . 10
INTRODUCTION . 2
1 Scope . 13
2 Normative references . 13
3 Terms, definitions, symbols, abbreviated terms and conventions . 13
3.1 Terms and definitions . 13
3.2 Symbols and abbreviated terms . 14
3.3 Conventions . 14
3.3.1 Use of UML . 14
3.3.2 State availability statement . 14
3.3.3 Data type names and references to data types . 14
4 Fundamentals . 14
4.1 General . 14
4.2 Abstract FDT model . 15
4.2.1 FDT model overview . 15
4.2.2 Frame Application (FA) . 18
4.2.3 Device Type Manager (DTM) . 19
4.2.4 Channel object . 26
4.3 Modularity . 28
4.4 Bus categories . 29
4.5 Identification . 29
4.5.1 DTM instance identification . 29
4.6 System and FDT topology . 30
4.7 FDT Communication . 32
4.7.1 General . 32
4.7.2 Handling of communication requests . 33
4.7.3 Handling of communication errors . 33
4.7.4 Handling of loss of connection . 33
4.7.5 Point-to-point communication . 33
4.7.6 Nested communication . 34
4.8 DTM, DTM Device Type and hardware identification information . 36
4.8.1 DTM and DTM Device Type . 36
4.8.2 Supported hardware identification . 37
4.8.3 Connected hardware identification . 37
4.9 DTM data persistence and synchronization . 38
4.10 DTM device parameter access . 39
4.11 DTM state machine . 39
4.11.1 DTM states . 39
4.11.2 'Communication allowed' substates. 40
4.12 Basic operation phases . 41
4.12.1 Roles and access rights . 41
4.12.2 Operation phases . 41
4.13 FDT version interoperability . 42
4.13.1 Version interoperability overview . 42
4.13.2 DTM and device versions. 43
4.13.3 Persistence . 43

4.13.4 Nested communication . 44
5 FDT session model and use cases . 44
5.1 Session model overview. 44
5.2 Actors . 45
5.3 Use cases . 47
5.3.1 Use case overview . 47
5.3.2 Observation . 47
5.3.3 Operation . 47
5.3.4 Maintenance . 51
5.3.5 Planning . 54
5.3.6 OEM service . 57
5.3.7 Administration. 57
6 General concepts . 58
6.1 Address management . 58
6.2 Scanning and DTM assignment . 59
6.2.1 Scanning overview . 59
6.2.2 Scanning . 59
6.2.3 DTM assignment . 60
6.2.4 Manufacturer-specific device identification . 60
6.2.5 Scan for communication hardware . 61
6.3 Configuration of Fieldbus Master or Communication Scheduler . 61
6.4 PLC tool support . 62
6.4.1 General . 62
6.4.2 Process image modifications while PLC is running . 63
6.5 Slave redundancy . 64
6.5.1 Redundancy overview . 64
6.5.2 Redundancy support in Frame Application . 65
6.5.3 Parent component for redundant fieldbus . 65
6.5.4 Redundancy support in Device DTM . 66
6.5.5 Scan and redundant slaves . 66
7 FDT service specification . 66
7.1 Service specification overview . 66
7.2 DTM services . 67
7.2.1 General services. 67
7.2.2 DTM services related to installation . 69
7.2.3 DTM services related to DTM/device information . 70
7.2.4 DTM services related to the DTM state machine . 72
7.2.5 DTM services related to functions . 75
7.2.6 DTM services related to Channel objects – service GetChannels . 78
7.2.7 DTM services related to documentation – service GetDocumentation . 78
7.2.8 DTM services to access the instance data . 78
7.2.9 DTM services to evaluate the instance data . 80
7.2.10 DTM services to access the device data . 81
7.2.11 DTM services related to network management information . 82
7.2.12 DTM services related to online operation . 83
7.2.13 DTM services related to data synchronization . 85
7.2.14 DTM services related to import and export . 87
7.3 Presentation object services . 87
7.4 Channel object service . 88

– 4 – IEC 62453-2:2022 RLV © IEC 2022
7.4.1 Channel object service overview . 88
7.4.2 Service ReadChannelInformation . 88
7.4.3 Service WriteChannelInformation . 88
7.5 Process Channel object services – services for I/O related information . 88
7.5.1 Service ReadChannelData .
...

IEC 62453-2 ®
Edition 3.0 2022-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Field device tool (FDT) interface specification –
Part 2: Concepts and detailed description
Spécification des interfaces des outils des dispositifs de terrain (FDT) –
Partie 2: Concepts et description détaillée
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.
Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite
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About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.
IEC publications search - webstore.iec.ch/advsearchform IEC Products & Services Portal - products.iec.ch
The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the
variety of criteria (reference number, text, technical publications previews. With a subscription you will always
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and withdrawn publications.
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Stay up to date on all new IEC publications. Just Published
containing more than 22 300 terminological entries in English
details all new publications released. Available online and
and French, with equivalent terms in 19 additional languages.
once a month by email.
Also known as the International Electrotechnical Vocabulary
(IEV) online.
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If you wish to give us your feedback on this publication or
need further assistance, please contact the Customer Service
Centre: [e-mail].
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IEC 62453-2 ®
Edition 3.0 2022-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Field device tool (FDT) interface specification –
Part 2: Concepts and detailed description
Spécification des interfaces des outils des dispositifs de terrain (FDT) –
Partie 2: Concepts et description détaillée
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 25.040.40; 35.100.05; 35.110 ISBN 978-2-8322-4532-3
– 2 – IEC 62453-2:2022 © IEC 2022
CONTENTS
FOREWORD . 10
INTRODUCTION . 12
1 Scope . 13
2 Normative references . 13
3 Terms, definitions, symbols, abbreviated terms and conventions . 13
3.1 Terms and definitions . 13
3.2 Symbols and abbreviated terms . 14
3.3 Conventions . 14
3.3.1 Use of UML . 14
3.3.2 State availability statement . 14
3.3.3 Data type names and references to data types . 14
4 Fundamentals . 14
4.1 General . 14
4.2 Abstract FDT model . 15
4.2.1 FDT model overview . 15
4.2.2 Frame Application (FA) . 18
4.2.3 Device Type Manager (DTM) . 19
4.2.4 Channel object . 26
4.3 Modularity . 28
4.4 Bus categories . 28
4.5 Identification . 29
4.5.1 DTM instance identification . 29
4.6 System and FDT topology . 30
4.7 FDT Communication . 31
4.7.1 General . 31
4.7.2 Handling of communication requests . 32
4.7.3 Handling of communication errors . 32
4.7.4 Handling of loss of connection . 32
4.7.5 Point-to-point communication . 32
4.7.6 Nested communication . 33
4.8 DTM, DTM Device Type and hardware identification information . 35
4.8.1 DTM and DTM Device Type . 35
4.8.2 Supported hardware identification . 36
4.8.3 Connected hardware identification . 36
4.9 DTM data persistence and synchronization . 37
4.10 DTM device parameter access . 38
4.11 DTM state machine . 38
4.11.1 DTM states . 38
4.11.2 'Communication allowed' substates. 39
4.12 Basic operation phases . 40
4.12.1 Roles and access rights . 40
4.12.2 Operation phases . 40
4.13 FDT version interoperability . 41
4.13.1 Version interoperability overview . 41
4.13.2 DTM and device versions. 42
4.13.3 Persistence . 42

4.13.4 Nested communication . 43
5 FDT session model and use cases . 43
5.1 Session model overview. 43
5.2 Actors . 44
5.3 Use cases . 46
5.3.1 Use case overview . 46
5.3.2 Observation . 46
5.3.3 Operation . 46
5.3.4 Maintenance . 50
5.3.5 Planning . 53
5.3.6 OEM service . 56
5.3.7 Administration. 56
6 General concepts . 57
6.1 Address management . 57
6.2 Scanning and DTM assignment . 58
6.2.1 Scanning overview . 58
6.2.2 Scanning . 58
6.2.3 DTM assignment . 59
6.2.4 Manufacturer-specific device identification . 59
6.2.5 Scan for communication hardware . 60
6.3 Configuration of Fieldbus Master or Communication Scheduler . 60
6.4 PLC tool support . 61
6.4.1 General . 61
6.4.2 Process image modifications while PLC is running . 62
6.5 Slave redundancy . 63
6.5.1 Redundancy overview . 63
6.5.2 Redundancy support in Frame Application . 64
6.5.3 Parent component for redundant fieldbus . 64
6.5.4 Redundancy support in Device DTM . 65
6.5.5 Scan and redundant slaves .
...