Field Device Integration (FDI) - Part 3: Server

IEC 62769-3:2021 is available as IEC 62769-3:2021 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 62769-3:2021 specifies the FDI Server. The overall FDI architecture is illustrated in Figure 1. The architectural components that are within the scope of this document have been highlighted in this figure.

Intégration des appareils de terrain (FDI) - Partie 3: Serveur

IEC 62769-3:2021 est disponible sous forme de IEC 62769-3:2021 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente .
L'IEC 62769-3:2021 spécifie le Serveur FDI. L'architecture FDI complète est représentée à la Figure 1. Les composants architecturaux qui relèvent du domaine d'application du présent document ont été mis en évidence dans cette figure.

General Information

Status
Published
Publication Date
04-Feb-2021
Current Stage
DELPUB - Deleted Publication
Start Date
28-Jan-2022
Completion Date
04-Apr-2023
Ref Project

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IEC 62769-3 ®
Edition 2.0 2021-02
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Field device integration (FDI) –
Part 3: FDI Server
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 Central Office Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
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.

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.

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(IEV) online.
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need further assistance, please contact the Customer Service
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IEC 62769-3 ®
Edition 2.0 2021-02
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Field device integration (FDI) –

Part 3: FDI Server
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 25.040.40; 35.100.05 ISBN 978-2-8322-9389-8

– 2 – IEC 62769-3:2021 RLV © IEC 2021

CONTENTS
FOREWORD . 5

INTRODUCTION . 2

1 Scope . 9

2 Normative references . 9

3 Terms, definitions, abbreviated terms and acronyms conventions . 10

3.1 Terms and definitions . 10

3.2 Abbreviated terms and acronyms . 11
3.3 Conventions . 11
4 Overview . 11
5 Information Model . 12
5.1 General . 12
5.2 Online/Offline . 12
5.2.1 Overview . 12
5.2.2 Transfer to device . 13
5.2.3 Transfer from device . 13
5.3 Access privileges . 13
5.4 Private Parameters . 13
5.5 Locking . 14
5.6 EditContext . 15
5.6.1 Concept and usage model . 15
5.6.2 Services . 16
5.6.3 NodeIds . 16
5.6.4 Reading . 17
5.6.5 Writing . 17
5.6.6 Writing dominant and dependent Variables . 17
5.6.7 Actions (EDD METHODS) . 17
5.6.8 UIDs . 20
5.6.9 Synchronization . 20
5.7 Reading . 20
5.7.1 General . 20
5.7.2 Reading offline variables . 21
5.7.3 Reading online variables . 21

5.8 Writing . 22
5.8.1 General . 22
5.8.2 Write offline variables . 23
5.8.3 Writing online variables . 24
5.8.4 Writing to an EditContext . 26
5.9 Subscription . 27
5.9.1 General . 27
5.9.2 Subscription of offline variables . 27
5.9.3 Subscription of online variables . 28
5.10 Device topology . 30
5.10.1 General . 30
5.10.2 Connection Points . 30
5.10.3 Topology management . 31
5.10.4 Topology scanning . 34

5.10.5 Use of SCAN function . 35

5.10.6 Validation of defined topology . 35

5.11 User Interface Elements . 36

5.11.1 User Interface Descriptions. 36

5.11.2 User Interface Plug-ins . 37

5.12 Actions . 37

5.12.1 FDI Server – FDI Client interaction . 37

5.12.2 Action state machine . 40

5.12.3 Actions Proxies . 42

5.12.4 Actions, EDD Actions and Actions Proxies . 42

6 OPC UA services . 44
6.1 OPC UA profiles . 44
6.2 Service error information . 44
6.2.1 Overview . 44
6.2.2 OPC UA services and their response . 44
6.2.3 Mappings of EDDL response codes to OPC UA service response . 44
6.3 Parameter value update during write service request . 45
6.4 Localization . 46
6.5 Audit events . 46
7 Communication . 46
7.1 Notation . 46
7.2 General . 46
7.2.1 Concepts . 46
7.2.2 Terms . 49
7.3 Communication Service processing . 50
7.3.1 Communication Service invocation . 50
7.3.2 Analyze communication path . 50
7.3.3 Manage communication relations . 51
7.3.4 Communication service request mapping . 51
7.3.5 Communication service request propagation . 52
7.3.6 Communication error handling . 53
7.4 FDI Communication Server specific handling . 53
7.4.1 Discovery . 53
7.4.2 Information Model synchronization . 54
8 Parallel Execution within the FDI Server . 54

8.1 Motivation . 54
8.2 Internal structure of the EDD interpreter. 54
8.3 Rules for running an EDD entity . 55
Annex A (informative) FDI Server functional structure . 56
A.1 FDI functional elements . 56
A.2 FDI Server extension . 57
Annex B (informative) Access privileges and user roles . 59
B.1 User roles and usage case . 59
B.2 Private data usage . 60
Annex C (informative) Parallel execution within the FDI Server – Examples . 61
C.1 Simple example for a synchronous execution . 61
C.2 Example for a concurrent execution . 61
C.3 Deadlock detection in concurrent execution . 63

– 4 – IEC 62769-3:2021 RLV © IEC 2021

Figure 1 – FDI architecture diagram .
...


IEC 62769-3 ®
Edition 2.0 2021-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Field device integration (FDI) –
Part 3: Server
Intégration des appareils de terrain (FDI) –
Partie 3: Serveur
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
ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie
et les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des
questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.

IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
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.

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 online collection - oc.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
committee, …). It also gives information on projects, replaced have access to up to date content tailored to your needs.
and withdrawn publications.
Electropedia - www.electropedia.org
IEC Just Published - webstore.iec.ch/justpublished
The world's leading online dictionary on electrotechnology,
Stay up to date on all new IEC publications. Just Published
containing more than 22 000 terminological entries in English
details all new publications released. Available online and
and French, with equivalent terms in 18 additional languages.
once a month by email.
Also known as the International Electrotechnical Vocabulary

(IEV) online.
IEC Customer Service Centre - webstore.iec.ch/csc
If you wish to give us your feedback on this publication or
need further assistance, please contact the Customer Service
Centre: sales@iec.ch.
A propos de l'IEC
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IEC 62769-3 ®
Edition 2.0 2021-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Field device integration (FDI) –

Part 3: Server
Intégration des appareils de terrain (FDI) –

Partie 3: Serveur
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 25.040.40; 35.100.05 ISBN 978-2-8322-9310-2

– 2 – IEC 62769-3:2021 © IEC 2021
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 8
3 Terms, definitions, abbreviated terms and conventions . 9
3.1 Terms and definitions . 9
3.2 Abbreviated terms . 9
3.3 Conventions . 9
4 Overview . 9
5 Information Model . 10
5.1 General . 10
5.2 Online/Offline . 11
5.2.1 Overview . 11
5.2.2 Transfer to device . 11
5.2.3 Transfer from device . 11
5.3 Access privileges . 12
5.4 Private Parameters . 12
5.5 Locking . 12
5.6 EditContext . 13
5.6.1 Concept and usage model . 13
5.6.2 Services . 14
5.6.3 NodeIds . 15
5.6.4 Reading . 15
5.6.5 Writing . 15
5.6.6 Writing dominant and dependent Variables . 15
5.6.7 Actions (EDD METHODS) . 17
5.6.8 UIDs . 18
5.6.9 Synchronization . 18
5.7 Reading . 18
5.7.1 General . 18
5.7.2 Reading offline variables . 19
5.7.3 Reading online variables . 19
5.8 Writing . 20
5.8.1 General . 20
5.8.2 Write offline variables . 21
5.8.3 Writing online variables . 22
5.8.4 Writing to an EditContext . 24
5.9 Subscription . 25
5.9.1 General . 25
5.9.2 Subscription of offline variables . 25
5.9.3 Subscription of online variables . 26
5.10 Device topology . 28
5.10.1 General . 28
5.10.2 Connection Points . 28
5.10.3 Topology management . 29
5.10.4 Topology scanning . 32

5.10.5 Use of SCAN function . 33
5.10.6 Validation of defined topology . 34
5.11 User Interface Elements . 34
5.11.1 User Interface Descriptions. 34
5.11.2 User Interface Plug-ins . 35
5.12 Actions . 35
5.12.1 FDI Server – FDI Client interaction . 35
5.12.2 Action state machine . 38
5.12.3 Actions Proxies . 40
5.12.4 Actions, EDD Actions and Actions Proxies . 40
6 OPC UA services . 42
6.1 OPC UA profiles . 42
6.2 Service error information . 42
6.2.1 Overview . 42
6.2.2 OPC UA services and their response . 42
6.2.3 Mappings of EDDL response codes to OPC UA service response . 42
6.3 Parameter value update during write service request . 43
6.4 Localization . 44
6.5 Audit events . 44
7 Communication . 44
7.1 Notation . 44
7.2 General . 44
7.2.1 Concepts . 44
7.2.2 Terms . 47
7.3 Communication Service processing . 48
7.3.1 Communication Service invocation . 48
7.3.2 Analyze communication path . 48
7.3.3 Manage communication relations .
...

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