IEC 61804-3:2015
(Main)Function Blocks (FB) for process control and Electronic Device Description Language (EDDL) - Part 3: EDDL syntax and semantics
Function Blocks (FB) for process control and Electronic Device Description Language (EDDL) - Part 3: EDDL syntax and semantics
IEC 61804-3:2015 specifies the Electronic Device Description Language (EDDL) technology, which enables the integration of real product details using the tools of the engineering life cycle. It specifies EDDL as a generic language for describing the properties of automation system components. This third edition cancels and replaces the second edition published in 2010. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: Builtins and their profiles removed and relocated into IEC 61804-5. The following extensions are integrated in the EDDL specification to meet FDI requirements:
- new contructs BLOB, PLUGIN;
- component construct for communication server requirements (additional attributes);
- extension of the class attribute;
- new attributes PRIVATE, VISIBILITY, WRITE_MODE.
Blocs Fonctionnels (FB) pour les procédés industriels et le Langage de Description Electronique de Produit (EDDL) - Partie 3: Sémantique et syntaxe EDDL
L'IEC 61804-3:2015 spécifie la technologie de langage de description électronique de produit (EDDL), qui permet en utilisant les outils d'ingénierie l'intégration des détails du produit réel dans les systèmes tout au long du cycle de vie. Elle spécifie l'EDDL en tant que langage générique pour décrire les propriétés des composants système mettant en oeuvre des automatismes. Cette troisième édition annule et remplace la deuxième édition parue en 2010. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: Les Builtins et leurs profils ont été supprimés et déplacés dans la norme IEC 61804-5. Les extensions suivantes sont intégrées à la spécification EDDL pour satisfaire aux exigences FDI:
- nouvelles constructions de BLOB, PLUGIN;
- construction de composant pour les exigences de serveur de communication (attributs supplémentaires);
- extension de l'attribut classe;
- nouveaux attributs PRIVATE, VISIBILITY, WRITE_MODE.
General Information
- Status
- Published
- Publication Date
- 08-Jun-2015
- Technical Committee
- SC 65E - Devices and integration in enterprise systems
- Drafting Committee
- WG 7 - TC 65/SC 65E/WG 7
- Current Stage
- DELPUB - Deleted Publication
- Start Date
- 24-Jun-2020
- Completion Date
- 15-Jun-2018
Relations
- Effective Date
- 05-Sep-2023
- Effective Date
- 05-Sep-2023
Overview
IEC 61804-3:2015 is an international standard developed by the International Electrotechnical Commission (IEC) that defines the Electronic Device Description Language (EDDL) syntax and semantics. Part 3 of the IEC 61804 series, this edition focuses on the formal language structures used to describe automation system components in process control environments. EDDL facilitates the integration of real product details within engineering lifecycle tools, enabling improved device descriptions within process automation systems.
This 2015 third edition revises and replaces the 2010 second edition with significant technical updates to better support Field Device Integration (FDI) requirements. Key improvements include the removal and relocation of built-in functions and their profiles to IEC 61804-5, and new constructs such as BLOB (Binary Large Object), PLUGIN, and enhanced component constructs tailored for communication server attributes. Additional syntax extensions include new attributes like PRIVATE, VISIBILITY, and WRITE_MODE, enhancing control over device description confidentiality and accessibility.
Key Topics
EDDL Syntax and Semantics
Defines the lexical structure, language elements, and formal rules that govern EDDL source code. This includes foundational concepts such as BLOCKs, CHARTs, COMMANDs, and COMPONENTs, detailing specific attributes and structural rules essential for creating interoperable device descriptions.Function Blocks (FB) for Process Control
Supports the modeling of process control functions through reusable function blocks, promoting consistency and modularity in describing control system components.New Constructs and Extensions
Incorporates extensions under the FDI initiative, including:- BLOB and PLUGIN constructs for enhanced data handling and integration capabilities.
- Component construct enhancements for communication server requirements with additional attributes.
- Expanded class attribute options.
- New attributes PRIVATE, VISIBILITY, and WRITE_MODE to define attribute confidentiality, visibility scope, and write permissions.
Conformance and Development Process
Details guidelines for conformant EDDL implementations and covers the complete EDD development cycle from source generation through preprocessing and compilation, ensuring standard compliance and consistency.
Applications
Process Automation Systems
EDDL enables manufacturers and process engineers to describe device parameters, diagnostics, and functionalities consistently across automation platforms, improving device integration with control systems.Device Integration and Engineering Tools
By standardizing device descriptions, EDDL supports integration with asset management, configuration, and maintenance tools; this simplifies engineering workflows throughout the product lifecycle.Field Device Integration (FDI)
The standard enhancements align with FDI specifications, facilitating seamless communication and interoperability between field devices and automation systems, streamlining device setup and management.Communication Servers
Newly introduced component constructs provide additional attributes addressing communication server requirements, ensuring robust data exchange in complex automation architectures.
Related Standards
IEC 61804-1: Function Blocks (FB) for Process Control – Part 1
Defines the general concepts and rules for Function Blocks used in industrial process control.IEC 61804-5: Function Blocks (FB) – Part 5: Builtins and Profiles
Details built-in functions and their profiles, which were relocated from IEC 61804-3 in the 2015 edition.Field Device Integration (FDI) Standards
Complementary standards aiming to unify device integration technologies including EDDL enhancements to meet FDI requirements.IEC 61131 Series
Covers programmable controllers and function blocks relevant to process control environments and complements IEC 61804 standards.
By adhering to IEC 61804-3:2015, organizations and device manufacturers ensure compatibility, modularity, and maintainability in describing automation components, facilitating efficient engineering processes and improved device interoperability worldwide.
Frequently Asked Questions
IEC 61804-3:2015 is a standard published by the International Electrotechnical Commission (IEC). Its full title is "Function Blocks (FB) for process control and Electronic Device Description Language (EDDL) - Part 3: EDDL syntax and semantics". This standard covers: IEC 61804-3:2015 specifies the Electronic Device Description Language (EDDL) technology, which enables the integration of real product details using the tools of the engineering life cycle. It specifies EDDL as a generic language for describing the properties of automation system components. This third edition cancels and replaces the second edition published in 2010. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: Builtins and their profiles removed and relocated into IEC 61804-5. The following extensions are integrated in the EDDL specification to meet FDI requirements: - new contructs BLOB, PLUGIN; - component construct for communication server requirements (additional attributes); - extension of the class attribute; - new attributes PRIVATE, VISIBILITY, WRITE_MODE.
IEC 61804-3:2015 specifies the Electronic Device Description Language (EDDL) technology, which enables the integration of real product details using the tools of the engineering life cycle. It specifies EDDL as a generic language for describing the properties of automation system components. This third edition cancels and replaces the second edition published in 2010. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: Builtins and their profiles removed and relocated into IEC 61804-5. The following extensions are integrated in the EDDL specification to meet FDI requirements: - new contructs BLOB, PLUGIN; - component construct for communication server requirements (additional attributes); - extension of the class attribute; - new attributes PRIVATE, VISIBILITY, WRITE_MODE.
IEC 61804-3:2015 is classified under the following ICS (International Classification for Standards) categories: 25.040.40 - Industrial process measurement and control; 35.240.50 - IT applications in industry. The ICS classification helps identify the subject area and facilitates finding related standards.
IEC 61804-3:2015 has the following relationships with other standards: It is inter standard links to IEC 61804-3:2020, IEC 61804-3:2010. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase IEC 61804-3:2015 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of IEC standards.
Standards Content (Sample)
IEC 61804-3 ®
Edition 3.0 2015-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Function Blocks (FB) for process control and Electronic Device Description
Language (EDDL) –
Part 3: EDDL syntax and semantics
Blocs Fonctionnels (FB) pour les procédés industriels et le Langage de
Description Electronique de Produit (EDDL) –
Partie 3: Sémantique et syntaxe EDDL
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IEC 61804-3 ®
Edition 3.0 2015-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Function Blocks (FB) for process control and Electronic Device Description
Language (EDDL) –
Part 3: EDDL syntax and semantics
Blocs Fonctionnels (FB) pour les procédés industriels et le Langage de
Description Electronique de Produit (EDDL) –
Partie 3: Sémantique et syntaxe EDDL
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 25.040.40; 35.240.50 ISBN 978-2-8322-2708-4
– 2 – IEC 61804-3:2015 IEC 2015
CONTENTS
FOREWORD . 16
INTRODUCTION . 18
1 Scope . 19
2 Normative references. 19
3 Terms, definitions, abbreviated terms and acronyms . 20
3.1 Terms and definitions . 20
3.2 Abbreviated terms and acronyms . 22
4 Conformance statement . 22
5 Conventions . 23
5.1 General . 23
5.2 Conventions for lexical structure . 23
5.2.1 ABC field1, field2 . 23
5.2.2 ABC field1+ . 24
5.2.3 ABC field2* . 24
5.2.4 ABC [field1, field2]+ . 24
5.2.5 ABC field1, (field2, field3) . 24
6 EDD and EDDL model . 24
6.1 Overview of EDD and EDDL . 24
6.2 EDD architecture . 24
6.3 Concepts of EDD . 24
6.4 Principles of the EDD development process . 25
6.4.1 General . 25
6.4.2 EDD source generation . 25
6.4.3 EDD preprocessing . 26
6.4.4 EDD compilation . 26
6.5 Interrelations between the lexical structure and formal definitions . 26
6.6 Builtins . 26
6.7 Profiles . 26
7 Electronic Device Description Language (EDDL) . 26
7.1 Overview. 26
7.1.1 EDDL features . 26
7.1.2 Syntax representation . 27
7.1.3 EDD language elements . 27
7.1.4 Basic construction elements . 27
7.1.5 Common attributes . 38
7.1.6 Special elements . 38
7.1.7 Rules for instances . 39
7.1.8 Rules for a list of VARIABLEs . 39
7.2 EDD identification information . 39
7.2.1 General structure . 39
7.2.2 Specific attributes . 39
7.3 AXIS . 42
7.3.1 General structure . 42
7.3.2 Specific attributes . 43
7.4 BLOCK . 45
7.4.1 BLOCK_A . 45
7.4.2 BLOCK_B . 57
7.5 CHART . 59
7.5.1 General structure . 59
7.5.2 Specific attributes . 59
7.6 COLLECTION . 61
7.6.1 General structure . 61
7.6.2 Specific attribute – item-type . 62
7.7 COMMAND . 62
7.7.1 General structure . 62
7.7.2 Specific attributes . 63
7.8 COMPONENT . 69
7.8.1 General structure . 69
7.8.2 Specific attributes . 70
7.9 COMPONENT_FOLDER . 75
7.10 COMPONENT_REFERENCE . 76
7.11 COMPONENT_RELATION . 76
7.11.1 General structure . 76
7.11.2 Specific attributes . 77
7.12 CONNECTION (void) . 80
7.13 DOMAIN (void) . 80
7.14 EDIT_DISPLAY . 80
7.14.1 General structure . 80
7.14.2 Specific attributes . 81
7.15 FILE . 83
7.15.1 General structure . 83
7.15.2 Specific attributes . 83
7.16 GRAPH . 84
7.16.1 General structure . 84
7.16.2 Specific attributes . 85
7.17 GRID . 86
7.17.1 General structure . 86
7.17.2 Specific attributes . 86
7.18 IMAGE . 87
7.18.1 General structure . 87
7.18.2 Specific attributes . 88
7.19 IMPORT . 89
7.19.1 General structure . 89
7.19.2 Redefinitions . 91
7.20 INTERFACE . 107
7.20.1 General structure . 107
7.20.2 Specific attribute – DECLARATION . 107
7.21 LIKE . 108
7.22 LIST . 108
7.22.1 General structure . 108
7.22.2 Specific attributes . 109
7.23 MENU . 110
7.23.1 General structure . 110
7.23.2 Specific attributes . 111
7.23.3 Sequence diagrams for actions. 116
– 4 – IEC 61804-3:2015 IEC 2015
7.24 METHOD . 118
7.24.1 General structure . 118
7.24.2 Specific attributes . 119
7.25 PROGRAM (void) . 121
7.26 RECORD . 121
7.27 REFERENCE_ARRAY . 122
7.27.1 General structure . 122
7.27.2 Specific attribute – ELEMENTS . 122
7.28 Relations . 123
7.28.1 REFRESH . 123
7.28.2 UNIT . 123
7.28.3 WRITE_AS_ONE . 124
7.29 RESPONSE_CODES . 124
7.30 SOURCE . 125
7.30.1 General structure . 125
7.30.2 Specific attributes . 126
7.31 TEMPLATE . 127
7.31.1 General structure . 127
7.31.2 Specific attribute – DEFAULT_VALUES . 127
7.32 VALUE_ARRAY . 128
7.32.1 General structure . 128
7.32.2 Specific attributes . 128
7.33 VARIABLE . 129
7.33.1 General structure . 129
7.33.2 Specific attributes . 130
7.34 VARIABLE_LIST . 148
7.35 WAVEFORM . 148
7.35.1 General structure . 148
7.35.2 Specific attributes . 149
7.36 Common attributes . 155
7.36.1 CLASSIFICATION . 155
7.36.2 COMPONENT_PARENT . 156
7.36.3 COMPONENT_PATH . 157
7.36.4 DEFINITION . 157
7.36.5 EMPHASIS . 158
7.36.6 HANDLING . 158
7.36.7 HEIGHT . 158
7.36.8 HELP . 159
7.36.9 LABEL . 160
7.36.10 LINE_COLOR . 160
7.36.11 LINE_TYPE . 160
7.36.12 MEMBERS . 161
7.36.13 PROTOCOL . 162
7.36.14 RESPONSE_CODES . 163
7.36.15 SUPPLIED_INTERFACE . 163
7.36.16 VALIDITY. 163
7.36.17 WIDTH . 164
7.36.18 PRIVATE . 164
7.36.19 VISIBILITY . 164
7.36.20 WRITE_MODE . 165
7.36.21 IDENTITY . 165
7.37 Conditional expression . 166
7.38 Referencing . 167
7.38.1 Referencing an EDD instance . 167
7.38.2 Referencing bits of a BIT_ENUMERATED VARIABLE . 168
7.38.3 Referencing members of a RECORD . 168
7.38.4 Referencing elements of a VALUE_ARRAY . 168
7.38.5 Referencing members of a COLLECTION . 169
7.38.6 Referencing elements of a REFERENCE_ARRAY . 169
7.38.7 Referencing members of a VARIABLE_LISTS . 169
7.38.8 Referencing elements of BLOCK_A PARAMETERS . 170
7.38.9 Referencing elements of BLOCK_A PARAMETER_LISTS . 170
7.38.10 Referencing elements of BLOCK_A LOCAL_PARAMETERS . 170
7.38.11 Referencing BLOCK_A CHARACTERISTICS . 171
7.38.12 Referencing members of a FILE . 171
7.38.13 Referencing elements of a LIST . 171
7.38.14 Referencing members of a CHART . 172
7.38.15 Referencing members of a GRAPH . 172
7.38.16 Referencing members of a SOURCE . 172
7.38.17 Referencing AXIS of a GRAPH, SOURCE, WAVEFORM . 173
7.38.18 Referencing PARAMETERS of specific BLOCK_A instance . 173
7.38.19 Referencing LOCAL_PARAMETERS of specific BLOCK_A instance . 174
7.38.20 Referencing CHARACTERISTICS of specific BLOCK_A instance . 174
7.38.21 Referencing CHARTS of specific BLOCK_A instance . 174
7.38.22 Referencing LISTS of specific BLOCK_A instance . 175
7.38.23 Referencing GRAPHS of specific BLOCK_A instance . 175
7.38.24 Referencing GRIDS of specific BLOCK_A instance . 176
7.38.25 Referencing MENUS of specific BLOCK_A instance . 176
7.38.26 Referencing METHODS of specific BLOCK_A instance . 177
7.38.27 Referencing COMPONENT instances . 177
7.38.28 Referencing COMPONENT types . 178
7.38.29 Referencing FILES of specific BLOCK_A instance . 178
7.38.30 Referencing PLUGINS of specific BLOCK_A instance . 178
7.39 Strings . 179
7.39.1 Specifying a string as a string literal . 179
7.39.2 Specifying a string as a string variable. 179
7.39.3 Specifying a string as an enumeration value . 180
7.39.4 Specifying a string as a dictionary reference . 180
7.39.5 Referencing HELP and LABEL attributes of EDD instances . 180
7.39.6 String operations . 181
7.39.7 Prompt string formats . 181
7.40 Expression . 182
7.40.1 General structure . 182
7.40.2 Primary expressions . 182
7.40.3 Unary expressions . 185
7.40.4 Binary expressions . 186
7.41 Text dictionary . 188
7.42 PLUGIN . 189
– 6 – IEC 61804-3:2015 IEC 2015
7.42.1 General structure . 189
7.42.2 Specific attribute – UUID . 189
7.43 BLOB . 190
Annex A (normative) EDDL formal definition . 191
A.1 EDDL preprocessor . 191
A.1.1 General structure . 191
A.1.2 Directives . 191
A.1.3 Predefined macros . 194
A.1.4 NEWLINE characters . 195
A.1.5 Comments . 195
A.2 Conventions . 195
A.2.1 Integer constants . 195
A.2.2 Floating-point constants . 195
A.2.3 String literals . 196
A.2.4 Using language and country codes in string literals . 196
A.3 Operators. 197
A.4 Keywords . 201
A.5 Terminals . 205
A.6 Formal EDDL syntax . 206
A.6.1 General . 206
A.6.2 EDD identification information . 206
A.6.3 AXIS . 207
A.6.4 BLOCK_A and BLOCK_B . 208
A.6.5 CHART . 212
A.6.6 COLLECTION . 213
A.6.7 COMMAND . 214
A.6.8 COMPONENT . 217
A.6.9 COMPONENT_FOLDER . 220
A.6.10 COMPONENT_REFERENCE. 220
A.6.11 COMPONENT_RELATION . 221
A.6.12 CONNECTION (void) . 223
A.6.13 DOMAIN (void) . 223
A.6.14 EDIT_DISPLAY . 223
A.6.15 FILE . 224
A.6.16 GRAPH . 224
A.6.17 GRID . 225
A.6.18 IMAGE . 226
A.6.19 INTERFACE . 227
A.6.20 LIST . 227
A.6.21 IMPORT. 227
A.6.22 LIKE . 229
A.6.23 MENU . 231
A.6.24 METHOD . 233
A.6.25 PROGRAM (void) . 234
A.6.26 RECORD . 234
A.6.27 REFERENCE_ARRAY . 235
A.6.28 Relations . 235
A.6.29 RESPONSE_CODES . 237
A.6.30 SOURCE . 238
A.6.31 TEMPLATE . 238
A.6.32 VALUE_ARRAY . 239
A.6.33 VARIABLE . 239
A.6.34 VARIABLE_LIST . 249
A.6.35 WAVEFORM . 249
A.6.36 Common attributes . 251
A.6.37 Expression . 255
A.6.38 C-Grammar . 257
A.6.39 Redefinition . 261
A.6.40 References . 285
A.6.41 PLUGIN . 287
A.6.42 BLOB . 288
A.7 Formal dictionary syntax . 288
Annex B (normative) EDDL Builtin library (void) . 289
Annex C (informative) EDD example . 290
C.1 EDD example of a temperature transmitter . 290
C.2 EDD example . 291
Annex D (normative) Profiles of EDDL and Builtins . 304
D.1 Conventions for profiles of EDDL and Builtins . 304
D.2 Profiles for PROFIBUS and PROFINET . 305
D.2.1 EDDL profile . 305
D.2.2 Builtin profile . 311
D.2.3 EDDL Formal Definition profile . 311
D.3 Profiles for FOUNDATION™ fieldbus . 312
D.3.1 EDDL profile . 312
D.3.2 Builtin profile . 318
D.3.3 EDDL Formal Definition profile . 319
D.4 Profiles for HART® Communication Foundation (HCF) . 319
D.4.1 EDDL profile . 319
D.4.2 Builtin profile . 326
D.4.3 EDDL Formal Definition profile . 326
D.5 Profiles for Communication Servers . 326
D.5.1 EDDL profile . 326
D.5.2 Builtin profile . 333
D.5.3 EDDL Formal Definition profile . 333
D.6 Data types . 333
D.6.1 METHOD DEFINITION data types . 333
D.6.2 VARIABLE TYPE data types . 334
Bibliography . 340
Figure 1 – Position of IEC 61804 in relation to other standards and products . 18
Figure 2 – EDD generation process . 25
Figure 3 – BLOCK_A . 28
Figure 4 – CHART . 28
Figure 5 – COLLECTION . 29
Figure 6 – COMMAND . 29
Figure 7 – COMPONENT . 30
– 8 – IEC 61804-3:2015 IEC 2015
Figure 8 – COMPONENT_FOLDER . 30
Figure 9 – COMPONENT_REFERENCE . 30
Figure 10 – COMPONENT_RELATION . 31
Figure 11 – EDIT_DISPLAY . 31
Figure 12 – FILE . 31
Figure 13 – GRAPH . 32
Figure 14 – GRID . 32
Figure 15 – IMAGE . 32
Figure 16 – LIKE . 33
Figure 17 – LIST . 33
Figure 18 – MENU . 34
Figure 19 – RECORD . 34
Figure 20 – REFERENCE_ARRAY . 35
Figure 21 – REFRESH . 35
Figure 22 – UNIT . 36
Figure 23 – WRITE_AS_ONE . 36
Figure 24 – SOURCE . 36
Figure 25 – VALUE_ARRAY . 37
Figure 26 – VARIABLE . 37
Figure 27 – VARIABLE_LIST . 37
Figure 28 – WAVEFORM . 38
Figure 29 – EDDL import mechanisms . 89
Figure 30 – MENU activation . 117
Figure C.1 – Example of an operator screen using EDD . 290
Table 1 – Field attribute descriptions . 23
Table 2 – DD_REVISION attribute . 40
Table 3 – DEVICE_REVISION attribute . 40
Table 4 – DEVICE_TYPE attributes . 41
Table 5 – EDD_PROFILE attribute . 41
Table 6 – EDD_VERSION attribute . 41
Table 7 – MANUFACTURER attributes . 42
Table 8 – MANUFACTURER
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