EN IEC 61804-4:2020

SLOVENSKI STANDARD
01-december-2020
Nadomešča:
SIST EN 61804-4:2016
Naprave in združevanje v proizvodne sisteme - Funkcijski bloki (FB) za nadzor
procesov in opisni jezik za elektronske naprave (EDDL) - 4. del: Interpretacija EDD
(IEC 61804-4:2020)
Devices and integration in enterprise systems - Function blocks (FB) for process control
and electronic device description language (EDDL) - Part 4: EDD interpretation (IEC
61804-4:2020)
Funktionsbausteine für die Prozessautomation und elektronische
Gerätebeschreibungssprache - Teil 4: Interpretation von Gerätebeschreibungen (IEC
61804-4:2020)
Blocs fonctionnels (FB) pour les procédés industriels et le langage de description
électronique de produit (EDDL) - Partie 4: Interprétation EDD (IEC 61804-4:2020)
Ta slovenski standard je istoveten z: EN IEC 61804-4:2020
ICS:
25.040.40 Merjenje in krmiljenje Industrial process
industrijskih postopkov measurement and control
35.060 Jeziki, ki se uporabljajo v Languages used in
informacijski tehniki in information technology
tehnologiji
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 IEC 61804-4

NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2020
ICS 25.040.40; 35.240.50 Supersedes EN 61804-4:2016 and all of its amendments
and corrigenda (if any)
English Version
Devices and integration in enterprise systems - Function blocks
(FB) for process control and electronic device description
language (EDDL) - Part 4: EDD interpretation
(IEC 61804-4:2020)
Les dispositifs et leur intégration dans les systèmes de Funktionsbausteine für die Prozessautomation und
l'entreprise - Blocs fonctionnels (FB) pour les procédés elektronische Gerätebeschreibungssprache - Teil 4:
industriels et le langage de description électronique de Interpretation von Gerätebeschreibungen
produit (EDDL) - Partie 4: Interprétation EDD (IEC 61804-4:2020)
(IEC 61804-4:2020)
This European Standard was approved by CENELEC on 2020-07-29. 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, 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,
Turkey 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
© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 61804-4:2020 E

European foreword
The text of document 65E/633/CDV, future edition 2 of IEC 61804-4, 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 national (dop) 2021-04-29
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2023-07-29
document have to be withdrawn
This document supersedes EN 61804-4:2016 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.

Endorsement notice
The text of the International Standard IEC 61804-4:2020 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 61804-2:2018 NOTE Harmonized as EN IEC 61804-2:2018 (not modified)
1 2
IEC 62769-100 NOTE Harmonized as EN IEC 62769-100
IEC 62769-115-2 NOTE Harmonized as EN IEC 62769-115-2

To be published. Stage at the time of publication: IEC AFDIS 62769-100:2020.
To be published. Stage at the time of publication: FprEN IEC 62769-100:2020.
To be published. Stage at the time of publication: FprEN IEC 62769-115-2:2020.
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1  Where 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 61784-1 - Industrial communication networks - Profiles EN IEC 61784-1 -
Part 1: Fieldbus profiles
IEC 61784-2 - Industrial communication networks - Profiles EN IEC 61784-2 -
- Part 2: Additional fieldbus profiles for real-
time networks based on ISO/IEC/IEEE 8802-
IEC 61804-3 - Devices and integration in enterprise EN IEC 61804-3 -
systems - Function blocks (FB) for process
control and electronic device description
language (EDDL) - Part 3: EDDL syntax and
semantics
IEC 61804-5 - Devices and intergration in enterprise EN IEC 61804-5 -
systems - Function blocks (FB) for process
control and electronic device description
language (EDDL) - Part 5: EDDL Builtin
library
IEC 62734 - Industrial networks - Wireless EN 62734 -
communication network and communication
profiles - ISA 100.11a
4 5
IEC 62769-4 - Field Device Integration (FDI) - Part 4: FDI EN 62769-4 -
Packages
6 7
IEC 62769-7 - Field Device Integration (FDI) - Part 7: FDI EN 62769-7 -
Communication Devices
To be published. Stage at the time of publication: IEC RFDIS 62769-4:2020.
To be published. Stage at the time of publication: prEN 62769-4:2018.
To be published. Stage at the time of publication: IEC RFDIS 62769-7:2020.
To be published. Stage at the time of publication: prEN 62769-7:2018.
IEC 61804-4 ®
Edition 2.0 2020-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Devices and integration in enterprise systems – Function blocks (FB) for

process control and electronic device description language (EDDL) –

Part 4: EDD interpretation
Les dispositifs et leur intégration dans les systèmes de l'entreprise – Blocs

fonctionnels (FB) pour les procédés industriels et le langage de description

électronique de produit (EDDL) –

Partie 4: Interprétation EDD
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 25.040.40; 35.240.50 ISBN 978-2-8322-8445-2

– 2 – IEC 61804-4:2020 © IEC 2020
CONTENTS
FOREWORD . 8
INTRODUCTION . 11
1 Scope . 12
2 Normative references . 12
3 Terms, definitions, abbreviated terms acronyms and conventions . 12
3.1 General terms and definitions . 12
3.2 Terms and definitions related to modular devices . 13
3.3 Abbreviated terms and acronyms . 14
3.4 Conventions . 14
4 EDDL user interface description . 15
4.1 Overview. 15
4.2 Menu conventions for handheld applications . 15
4.3 Menu conventions for PC-based applications . 16
4.3.1 Overview . 16
4.3.2 Online root menus . 16
4.3.3 Offline root menu . 17
4.3.4 Example of EDD menu structure . 17
4.3.5 User interface . 22
4.4 Label concatenation for indirect variable references . 25
4.4.1 General . 25
4.4.2 Simple variable references . 26
4.4.3 Complex variable references . 26
4.5 Help concatenation . 28
4.5.1 General . 28
4.5.2 Simple variable references . 28
4.5.3 Complex variable references . 29
4.6 Containers and contained items . 30
4.6.1 Overview . 30
4.6.2 Permitted and default STYLEs . 30
4.6.3 Containers . 32
4.6.4 Contained items . 34
4.7 Layout rules . 40
4.7.1 Overview . 40
4.7.2 Controlling the layout by LAYOUT_TYPE attribute . 41
4.7.3 Layout rules for WIDTH and HEIGHT . 45
4.7.4 Layout rules for COLUMNBREAK and ROWBREAK . 48
4.7.5 Layout examples . 54
4.7.6 Conditional user interface . 69
4.8 Graphical elements . 75
5 EDDL data description . 79
5.1 EDDL application stored device data . 79
5.1.1 Overview . 79
5.1.2 FILE . 79
5.1.3 LIST . 81
5.2 Exposing data items outside the EDD application . 88
5.3 Initialization of EDD instances . 88

IEC 61804-4:2020 © IEC 2020 – 3 –
5.3.1 Overview . 88
5.3.2 Initialization support . 88
5.3.3 TEMPLATE . 88
5.4 Device model mapping . 89
5.4.1 BLOCK_A . 89
5.4.2 BLOCK_B . 89
6 EDDL METHOD programming and usage of builtins . 90
6.1 Method environment . 90
6.1.1 General . 90
6.1.2 Security . 90
6.1.3 Device data . 90
6.1.4 Method TYPE and parameters . 91
6.1.5 Abort processing. 91
6.2 Implementation requirements . 92
6.3 Builtin MenuDisplay . 92
6.4 Division by zero and undetermined floating values . 95
6.4.1 Integer and unsigned integer values . 95
6.4.2 Floating-point values . 95
7 Modular devices . 96
7.1 Overview. 96
7.2 EDD identification . 96
7.3 Instance object model . 96
7.4 Offline configuration . 97
7.5 Online configuration . 97
7.6 Simple modular device example . 97
7.6.1 General . 97
7.6.2 Separate EDD file example with direct EDD referencing . 98
7.6.3 Separate EDD file example with classification EDD referencing and
interfaces . 100
7.6.4 One EDD file example . 102
7.6.5 Combination of single and separate modular device example . 104
7.7 Upload and download for modular devices . 104
7.8 Diagnostic . 104
7.9 Reading modular device topology . 105
7.9.1 SCAN . 105
7.9.2 Detect module type . 107
7.10 Configuration check . 107
8 Session management . 108
8.1 Overview. 108
8.2 Data management . 108
8.2.1 Overview . 108
8.2.2 Caching for online session . 109
8.2.3 Caching for offline session . 110
8.2.4 Caching for dialogs and windows . 111
8.2.5 Caching for METHODs . 112
8.3 UI aspects of editing sessions . 115
8.4 User roles . 116
9 Offline and online configuration . 116
9.1 Overview. 116

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9.2 Offline dataset . 116
9.3 Offline configuration . 116
9.4 Online dataset . 116
9.5 Online configuration . 116
9.6 Upload and download . 117
9.6.1 Overview . 117
9.6.2 Error recovery. 118
9.6.3 Upload procedure . 118
9.6.4 Download procedure . 120
10 EDDL communication description . 122
10.1 General . 122
10.2 Parsing data received from the device . 123
10.3 Parsing complex data items . 123
10.4 Foundation Fieldbus . 123
10.5 ISA100_Wireless communication model . 127
Annex A (normative) Device simulation . 131
Annex B (informative) Predefined identifiers . 132
Annex C (informative) Description of EDDL profiles . 135
C.1 Communication Server (CS) . 135
C.2 Foundation Fieldbus (FF) . 135
C.3 Generic Protocol Extension (GPE) . 135
C.4 HART . 135
C.5 ISA100 . 135
C.6 PROFIBUS (PB) . 135
C.7 PROFINET (PN) . 136
Annex D (normative) Upload/download caching model . 137
Bibliography . 139

Figure 1 – EDD example of root menus . 22
Figure 2 – Example of an EDD application for diagnostics . 22
Figure 3 – Example of an EDD application for process variables . 23
Figure 4 – Example of an EDD application for primary variables . 23
Figure 5 – Example of an EDD application for process-related device features . 24
Figure 6 – Example of an EDD application for device features . 24
Figure 7 – Example of an EDD application for maintenance features . 25
Figure 8 – Usage of COLLECTION MEMBERS in MENUs of STYLE GROUP . 33
Figure 9 – Displaying single bits of BIT_ENUMERATED . 35
Figure 10 – Displaying multiple bits of BIT_ENUMERATED. 36
Figure 11 – Example of an EDD application for a variable of type BIT_ENUMERATED . 36
Figure 12 – EDD example with a "write-only" variable (HANDLING WRITE) . 37
Figure 13 – Basic layout elements . 40
Figure 14 – Example of layout with equal column width . 42
Figure 15 – Example of layout with optimized column width . 42
Figure 16 – Cell body in a layout with optimized column width (label to the left) . 43
Figure 17 – Cell body in a layout with optimized column width (label on top) . 43
Figure 18 – EDD source code for a layout with VARIABLEs spanning columns . 47

IEC 61804-4:2020 © IEC 2020 – 5 –
Figure 19 – Layout with VARIABLEs spanning multiple columns . 47
Figure 20 – EDD source code for layout for protruding elements example . 49
Figure 21 – Layout for protruding elements . 49
Figure 22 – EDD source code for layout for partially filled rows example . 50
Figure 23 – Layout for partially filled rows . 50
Figure 24 – EDD source code for layout for partially filled rows example . 51
Figure 25 – Layout for partially filled rows . 51
Figure 26 – EDD source code for layout for oversized elements example. 52
Figure 27 – Oversized element in a layout with equal column width . 52
Figure 28 – Oversized element in a layout with optimized column width . 52
Figure 29 – EDD source code example for a layout for columns in stacked group . 53
Figure 30 – Layout for columns in stacked group . 53
Figure 31 – EDD source code for layout for columns with GRAPHs in stacked group
example . 54
Figure 32 – Layout for columns with GRAPHs in stacked group . 54
Figure 33 – Example of an EDD for an overview menu . 55
Figure 34 – Example of an EDD application for an overview window . 55
Figure 35 – EDD source code for a layout with menu items spanning a single column . 55
Figure 36 – Example of a layout with menu items spanning a single column . 56
Figure 37 – Example of an EDD using COLUMNBREAK . 56
Figure 38 – Example of an EDD application for an overview window . 57
Figure 39 – EDD example for an overview window . 57
Figure 40 – Example of an EDD application for an overview window . 58
Figure 41 – EDD source code for a layout with small in-line images . 58
Figure 42 – Example of a layout with small in-line images . 59
Figure 43 – EDD source code for a multi-column layout with GROUP . 60
Figure 44 – Example of a multi-column layout with GROUP . 61
Figure 45 – Example of an EDD for in-line graphs and charts . 61
Figure 46 – Example of an EDD application for an in-line graph . 62
Figure 47 – Example of an EDD for full-width graphs and charts . 62
Figure 48 – Example of an EDD application for a full-width graph in a layout with equal

column width . 63
Figure 49 – Example of an EDD application for a full-width graph in a layout with
optimized column width . 64
Figure 50 – Example of an EDD for nested containers . 65
Figure 51 – Example of an EDD application for nested containers . 65
Figure 52 – Example of an EDD for EDIT_DISPLAYS . 66
Figure 53 – Example of an EDD application for EDIT_DISPLAYS. 67
Figure 54 – Example of an EDD for images . 67
Figure 55 – Example of an EDD application for images . 68
Figure 56 – Example of an EDD for large inline-images . 68
Figure 57 – Example of layout with a large inline-image . 69
Figure 58 – EDD example for VALIDITY in online session . 70
Figure 59 – Example of an EDD application for a gauge with limit regions . 76

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Figure 60 – Example of an EDD for a gauge with limit regions . 78
Figure 61 – Example of a file declaration . 80
Figure 62 – Example of comparing valve signatures. 81
Figure 63 – Example of more complex file declaration . 82
Figure 64 – Example of reviewing the stored radar signals . 83
Figure 65 – Example of an EDD that inserts, replaces, or compares radar signals . 88
Figure 66 – Example of a BLOCK_A . 89
Figure 67 – Example of a wizard . 94
Figure 68 – The different relations of a module . 97
Figure 69 – Components and possible configuration of the modular devices . 98
Figure 70 – Separate EDD file example with direct EDD referencing . 99
Figure 71 – EDD example for module1 . 99
Figure 72 – EDD example for module2 . 100
Figure 73 – EDD example for modular device . 101
Figure 74 – EDD example for module1 . 102
Figure 75 – EDD example for module2 . 102
Figure 76 – EDD example for module2 . 103
Figure 77 – Upload/download order of a modular device . 104
Figure 78 – Example of a SCAN METHOD . 106
Figure 79 – Example of a DETECT METHOD . 107
Figure 80 – Example of a CHECK_CONFIGURATION METHOD . 108
Figure 81 – Data caching for an online session . 110
Figure 82 – Data caching for an offline session . 111
Figure 83 – Sub dialogs or windows using a shared edit cache . 111
Figure 84 – Sub dialogs or windows using separate edit caches . 112
Figure 85 – Data caching for nested METHODs . 112
Figure 86 – Data caching for a METHOD invoked within a dialog or window . 113
Figure 87 – Data caching for a METHOD invoking a dialog using an edit cache . 113
Figure 88 – Data caching for a METHOD invoking a dialog . 113
Figure 89 – Data flow for download to the device . 117
Figure 90 – Data flow for upload from the device . 118
Figure 91 – Example device with 2 unique BLOCK_A definitions . 124
Figure 92 – Example EDD for a device with 2 unique BLOCK_A definitions . 125
Figure 93 – BLOCK_A example with PARAMETER_LISTS . 126
Figure 94 – Example EDD for a BLOCK_A with PARAMETER_LISTS . 127
Figure 95 – Example ISA100_Wireless device objects representation . 128
Figure 96 – Example EDD for a ISA100_Wireless device with 2 unique BLOCK_A
definitions . 129
Figure 97 – BLOCK_A example with PARAMETER_LISTS . 129
Figure 98 – Example EDD for a BLOCK_A with PARAMETER_LISTS . 130
Figure D.1 – Upload caching model . 137
Figure D.2 – Download caching model . 138

Table 1 – List of defined root menu identifiers for handhelds . 15

IEC 61804-4:2020 © IEC 2020 – 7 –
Table 2 – List of defined root menu identifiers for PC-based devices . 16
Table 3 – Fall back alternatives for online root menus . 16
Table 4 – Fall back alternatives for offline root menus . 17
Table 5 – Label rule summary for simple variable references . 26
Table 6 – Label rule summary for simple variable references . 26
Table 7 – Prefix rule summary for complex variable references . 27
Table 8 – Prefix rule summary for complex variable references . 27
Table 9 – Body rule summary for complex variable references . 27
Table 10 – Body rule summary for complex variable references . 27
Table 11 – Suffix rule summary for complex variable references . 28
Table 12 – Suffix rule summary for complex variable references . 28
Table 13 – Help rule summary for simple variable references . 28
Table 14 – Help rule summary for simple variable references . 28
Table 15 – Help prefix rule summary for complex variable references . 29
Table 16 – Help prefix rule summary for complex variable references . 29
Table 17 – Help suffix rule summary for complex variable references . 29
Table 18 – Help suffix rule summary for complex variable references . 29
Table 19 – Permitted contained items and default STYLES . 31
Table 20 – Uninitialized state of VARIABLEs on user interface . 34
Table 21 – Example of "write-only" variable in an online dialog . 38
Table 22 – Description of layout content . 41
Table 23 – Minimum and maximum width for input fields spanning one column . 43
Table 24 – WIDTH and HEIGHT span and applicability . 45
Table 25 – Example 1 VALIDITY in an online session . 71
Table 26 – Example 2 VALIDITY in an online session . 72
Table 27 – Example 3 VALIDITY in an online session . 73
Table 28 – Example 4 VALIDITY in an online session . 74
Table 29 – Examples of floating-point results . 95
Table 30 – Usages of COMPONENT_PATH . 96
Table 31 – Diagnostic classifications . 105
Table 32 – Terminology for session management . 108
Table 33 – Terminology used in data management . 109
Table 34 – Builtins for method cache controlling . 114
Table 35 – List of defined upload menu identifiers . 118
Table 36 – List of defined download menu identifiers . 120
Table B.1 – ARRAY predefined identifiers . 132
Table B.2 – COLLECTION predefined identifiers . 132
Table B.3 – COMMAND predefined identifiers . 132
Table B.4 – IMAGE predefined identifiers . 133
Table B.5 – MENU predefined identifiers . 133
Table B.6 – METHOD predefined identifiers . 134
Table B.7 – VARIABLE predefined identifiers . 134

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INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
DEVICES AND INTEGRATION IN ENTERPRISE SYSTEMS –
FUNCTION BLOCKS (FB) FOR PROCESS CONTROL AND
ELECTRONIC DEVICE DESCRIPTION LANGUAGE (EDDL) –

Part 4: EDD interpretation
FOREWORD
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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 61804-4 has been prepared by subcommittee 65E: Devices and
integration in enterprise systems, of IEC technical committee 65: Industrial-process
measurement, control and automation.
This second edition cancels and replaces the first edition published in 2015. This edition
constitutes a technical revision.

IEC 61804-4:2020 © IEC 2020 – 9 –
This edition was developed by merging material from multiple variants of existing EDDL
1 2
specifications including those from Fie
...