EN 61804-3:2007

SLOVENSKI STANDARD
01-december-2007
1DGRPHãþD
SIST EN 61804-2:2004
Funkcijski bloki (FB) za nadzor procesov - 3. del: Opisni jezik za elektronske
naprave (EDDL) (IEC 61804-3:2006)
Function blocks (FB) for process control - Part 3: Electronic Device Description
Language (EDDL)
Funktionsbausteine für die Prozessautomation - Teil 3: Elektronische
Gerätebeschreibungssprache (EDDL)
Blocs fonction pour les processus industriels - Partie 3: Langage de description
électronique du produit (EDDL)
Ta slovenski standard je istoveten z: EN 61804-3:2007
ICS:
25.040.40 Merjenje in krmiljenje Industrial process
industrijskih postopkov measurement and control
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 61804-3
NORME EUROPÉENNE
June 2007
EUROPÄISCHE NORM
ICS 25.040.40; 35.240.50 Partially supersedes EN 61804-2:2004

English version
Function blocks (FB) for process control -
Part 3: Electronic Device Description Language (EDDL)
(IEC 61804-3:2006)
Blocs fonction  Funktionsbausteine
pour les processus industriels - für die Prozessautomation -
Partie 3: Langage de description Teil 3: Elektronische
électronique du produit (EDDL) Gerätebeschreibungssprache (EDDL)
(IEC 61804-3:2006)
(CEI 61804-3:2006)
This European Standard was approved by CENELEC on 2007-05-01. 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 Central Secretariat 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 Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the
Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2007 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61804-3:2007 E
Foreword
The text of the International Standard IEC 61804-3:2006, prepared by SC 65C, Industrial networks, of
IEC TC 65, Industrial-process measurement and control, was submitted to the formal vote and was
approved by CENELEC as EN 61804-3 on 2007-05-01 without any modification.
This European Standard supersedes the EDDL specification given in EN 61804-2:2004.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
(dop) 2008-05-01
national standard or by endorsement
– latest date by which the national standards conflicting
(dow) 2010-05-01
with the EN have to be withdrawn
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 61804-3:2006 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following note has to be added for the standard indicated:
IEC 61131-3 NOTE Harmonized as EN 61131-3:2003 (not modified).
__________
- 3 - EN 61804-3:2007
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following referenced documents are indispensable for the application 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  Where an International Publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year

IEC 61499-1 2005 Function blocks – EN 61499-1 2005
Part 1: Architecture
IEC/TS 61804-1 2003 Function blocks (FB) for process control – - -
Part 1: Overview of system aspects

1)
ISO/IEC 2022 - Information technology - Character code - -
structure and extension techniques

ISO/IEC 2375 2003 Information technology - Procedure for - -
registration of escape sequences and
coded character sets
1) 2)
ISO/IEC 7498-1 - Information technology - Open systems EN ISO/IEC 7498-1 1995
interconnection - Basic reference model –
Part 1: The basic model
ISO/IEC 8859-1 1998 Information technology - 8-bit single-byte - -
coded graphic character sets –
Part 1: Latin alphabet No.1
1)
ISO/IEC 9899 - Programming languages - C - -

ISO/IEC 10646-1 2000 Information technology - Universal Multiple-- -
Octet Coded Character Set (UCS) –
Part 1: Architecture and Basic Multilingual
Plane
ISO 639 Series Codes for the representation of names of - -
languages
ISO 3166 Series Codes for the representation of names of - -
countries and their subdivisions

IEEE 754 1985 Binary Floating-Point Arithmetic (R1990) - -

1)
Undated reference.
2)
Valid edition at date of issue.

INTERNATIONAL IEC
STANDARD 61804-3
First edition
2006-09
Function blocks (FB) for process control –
Part 3:
Electronic Device Description Language (EDDL)
 IEC 2006  Copyright - all rights reserved
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 the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
PRICE CODE
Commission Electrotechnique Internationale XN
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
For price, see current catalogue

– 2 – 61804-3  IEC:2006(E)
CONTENTS
FOREWORD.16
INTRODUCTION.18

1 Scope.19
2 Normative references.19
3 Terms, definitions, abbreviated terms and acronyms .20
4 Conformance statement.26
5 Conventions for lexical structures .27
6 EDD and EDDL model .28
6.1 Overview of EDD and EDDL.28
6.2 EDD architecture .28
6.3 Concepts of EDD .28
6.4 Principles of the EDD development process .29
6.5 Interrelations between the lexical structure and formal definitions.30
6.6 Builtins .30
6.7 Profiles.30
7 Electronic Device Description Language.30
7.1 Overview .30
7.2 EDD identification information.40
7.3 AXIS.43
7.4 BLOCK .44
7.5 CHART.53
7.6 COLLECTION.56
7.7 COMMAND.57
7.8 CONNECTION.63
7.9 DOMAIN.64
7.10 EDIT_DISPLAY .65
7.11 FILE .67
7.12 GRAPH .67
7.13 GRID.69
7.14 IMAGE .72
7.15 IMPORT .74
7.16 LIKE .85
7.17 LIST .86
7.18 MENU .87
7.19 METHOD.98
7.20 PROGRAM . 100
7.21 RECORD. 101
7.22 REFERENCE_ARRAY . 101
7.23 Relations . 102
7.24 RESPONSE_CODES. 103
7.25 SOURCE . 104
7.26 VALUE_ARRAY. 107
7.27 VARIABLE. 108
7.28 VARIABLE_LIST. 123
7.29 WAVEFORM . 124

61804-3  IEC:2006(E) – 3 –
7.30 Common attributes . 131
7.31 Output redirection (OPEN and CLOSE) . 134
7.32 Conditional expression. 134
7.33 Referencing. 135
7.34 Strings. 141
7.35 Expression . 143
7.36 Text dictionary. 149

Annex A (normative) EDDL formal definition . 150
Annex B (normative) EDDL Builtin Library. 224
Annex C (informative) EDD Example . 337
Annex D (normative) Profiles of EDDL and Builtins . 350
Annex E (informative) Historical background . 376

Bibliography . 377

Figure 1 – Position of the IEC 61804 series related to other standards and products.18
Figure 2 – EDD generation process .29
Figure 3 – BLOCK_A.32
Figure 4 – CHART.32
Figure 5 – COLLECTION.33
Figure 6 – COMMAND.33
Figure 7 – DOMAIN.33
Figure 8 – EDIT_DISPLAY .34
Figure 9 – FILE .34
Figure 10 – GRAPH .34
Figure 11 – GRID .34
Figure 12 – IMAGE.35
Figure 13 – LIKE .35
Figure 14 – LIST .35
Figure 15 – MENU.36
Figure 16 – PROGRAM .36
Figure 17 – RECORD.36
Figure 18 – REFERENCE_ARRAY .37
Figure 19 – REFRESH .37
Figure 20 – UNIT .37
Figure 21 – WRITE_AS_ONE.37
Figure 22 – SOURCE .38
Figure 23 – VALUE_ARRAY .38
Figure 24 – VARIABLE .38
Figure 25 – VARIABLE_LIST.38
Figure 26 – WAVEFORM.39
Figure 27 – EDDL import mechanisms.74
Figure 28 – MENU activation (ACCESS OFFLINE).94

– 4 – 61804-3  IEC:2006(E)
Figure 29 – Action performed after a new value is entered.95
Figure 30 – Action performed after all VARIABLE inputs of the MENU are accepted
(ACCESS OFFLINE) .95
Figure 31 – Method execution .95
Figure 32 – MENU activation (ACCESS ONLINE) .96
Figure 33 – Cyclic reading of dynamic VARIABLEs (ACCESS ONLINE) .97
Figure 34 – Action performed after all VARIABLE inputs of the MENU are accepted
(ACCESS ONLINE) .97
Figure 35 – Time for read-and-write operation . 122
Figure C.1 – Example of an operator screen using EDD. 337

Table 1 – Field attribute descriptions .27
Table 2 – DD_REVISION attribute .40
Table 3 – DEVICE_REVISION attribute .41
Table 4 – DEVICE_TYPE attribute.41
Table 5 – EDD_PROFILE attribute .41
Table 6 – EDD_VERSION attribute.42
Table 7 – MANUFACTURER attribute.42
Table 8 – MANUFACTURER_EXT attribute .42
Table 9 – AXIS attributes .43
Table 10 – MAX_VALUE, MIN_VALUE attribute.43
Table 11 – SCALING attribute .44
Table 12 – BLOCK_A attributes.45
Table 13 – CHARACTERISTIC attribute .45
Table 14 – PARAMETER attributes .46
Table 15 – AXIS_ITEMS attribute .46
Table 16 – CHART_ITEMS attribute .46
Table 17 – COLLECTION_ITEMS attribute .47
Table 18 – EDIT_DISPLAY_ITEMS attribute .47
Table 19 – FILE_ITEMS attribute.47
Table 20 – GRAPH_ITEMS attribute.48
Table 21 – GRID_ITEMS attribute .48
Table 22 – IMAGE_ITEMS attribute .48
Table 23 – LIST_ITEMS attribute.48
Table 24 – MENU_ITEMS attribute .49
Table 25 – METHOD_ITEMS attribute .49
Table 26 – PARAMETER_LISTS attributes .50
Table 27 – REFERENCE_ARRAY_ITEMS attribute.50
Table 28 – REFRESH_ITEMS attribute.50
Table 29 – SOURCE_ITEMS attribute .51
Table 30 – UNIT_ITEMS attribute.51
Table 31 – WAVEFORM_ITEMS attribute.51
Table 32 – WRITE_AS_ONE_ITEMS attribute .51
Table 33 – BLOCK_B attributes.52

61804-3  IEC:2006(E) – 5 –
Table 34 – NUMBER attributes.52
Table 35 – TYPE attributes.53
Table 36 – CHART attributes.53
Table 37 – CYCLE_TIME attribute.54
Table 38 – HEIGHT/WIDTH attribute .54
Table 39 – LENGTH attribute .55
Table 40 – TYPE attribute .55
Table 41 – COLLECTION attributes.56
Table 42 – item–type.56
Table 43 – COMMAND attributes.58
Table 44 – OPERATION attribute .58
Table 45 – TRANSACTION attributes .59
Table 46 – REPLY and REQUEST attributes .60
Table 47 – INDEX attribute.61
Table 48 – BLOCK_B attribute.61
Table 49 – NUMBER attribute.61
Table 50 – SLOT attribute .62
Table 51 – CONNECTION attribute .62
Table 52 – HEADER attribute .62
Table 53 – MODULE attribute.63
Table 54 – CONNECTION attribute .63
Table 55 – APPINSTANCE attribute .63
Table 56 – DOMAIN attributes.64
Table 57 – HANDLING attribute.64
Table 58 – EDIT_DISPLAY attributes .65
Table 59 – EDIT_ITEMS attribute .65
Table 60 – DISPLAY_ITEM attributes .66
Table 61 – POST_EDIT_ACTIONS, PRE_EDIT_ACTIONS attribute.67
Table 62 – FILE attributes .67
Table 63 – GRAPH attributes .68
Table 64 – HEIGHT/WIDTH attribute .68
Table 65 – CYCLE_TIME attribute.69
Table 66 – X_AXIS attribute .69
Table 67 – GRID attributes.70
Table 68 – VECTORS attribute.70
Table 69 – HANDLING attribute.71
Table 70 – HEIGHT/WIDTH attribute .71
Table 71 – ORIENTATION attribute.72
Table 72 – VALIDITY attributes .72
Table 73 – IMAGE attributes .72
Table 74 – PATH attribute .73
Table 75 – LINK attribute .73
Table 76 – VALIDITY attributes .73

– 6 – 61804-3  IEC:2006(E)
Table 77 – Importing Device Description.75
Table 78 – Redefinition attributes .76
Table 79 – Redefinition rules for AXIS attributes.76
Table 80 – Redefinition rules for BLOCK_A attributes .77
Table 81 – Redefinition rules for BLOCK_B attributes .77
Table 82 – Redefinition rules for CHART attributes.78
Table 83 – Redefinition rules for COLLECTION attributes.78
Table 84 – Redefinition rules for COMMAND attributes.78
Table 85 – Redefinition rules for CONNECTION attributes.79
Table 86 – Redefinition rules for DOMAIN attributes .79
Table 87 – Redefinition rules for EDIT_DISPLAY attributes.79
Table 88 – Redefinition rules for FILE attributes .79
Table 89 – Redefinition rules for GRAPH attributes.80
Table 90 – Redefinition rules for GRID attributes .80
Table 91 – Redefinition rules for IMAGE attributes.80
Table 92 – Redefinition rules for LIST attributes .81
Table 93 – Redefinition rules for MENU attributes.81
Table 94 – Redefinition rules for METHOD attributes .82
Table 95 – Redefinition rules for PROGRAM attributes .82
Table 96 – Redefinition rules for RECORD attributes .82
Table 97 – Redefinition rules for REFERENCE_ARRAY attributes .82
Table 98 – Redefinition rules for RESPONSE_CODES attributes .83
Table 99 – Redefinition rules for SOURCE attributes .83
Table 100 – Redefinition rules for VALUE_ARRAY attributes .83
Table 101 – Redefinition rules for VARIABLE attributes .84
Table 102 – Redefinition rules for VARIABLE_LIST attributes .85
Table 103 – Redefinition rules for WAVEFORM attributes.85
Table 104 – LIKE attributes .86
Table 105 – LIST attributes .86
Table 106 – TYPE attribute .86
Table 107 – CAPACITY, COUNT attribute .87
Table 108 – MENU attribute .88
Table 109 – ITEMS attribute.89
Table 110 – ACCESS attribute .89
Table 111 – ENTRY attribute.90
Table 112 – POST_EDIT_ACTIONS, PRE_EDIT_ACTIONS, POST_READ_ACTIONS,
PRE_READ_ACTIONS, POST_WRITE_ACTIONS, PRE_WRITE_ACTIONS attributes.90
Table 113 – PURPOSE attribute.92
Table 114 – ROLE attribute .93
Table 115 – STYLE attribute .93
Table 116 – VALIDITY attributes .94
Table 117 – METHOD attributes.98
Table 118 – ACCESS attributes.98
Table 119 – TYPE attributes.99

61804-3  IEC:2006(E) – 7 –
Table 120 – VALIDITY attributes .99
Table 121 – PROGRAM attributes . 100
Table 122 – ARGUMENT attribute. 100
Table 123 – RECORD attributes. 101
Table 124 – REFERENCE_ARRAY attribute . 101
Table 125 – ELEMENTS attribute . 102
Table 126 – REFRESH attributes . 102
Table 127 – UNIT attributes . 103
Table 128 – WRITE_AS_ONE attribute. 103
Table 129 – RESPONSE_CODES attributes . 104
Table 130 – SOURCE attributes . 104
Table 131 – EMPHASIS attribute. 105
Table 132 – LINE_COLOR attribute. 105
Table 133 – LINE_TYPE attribute . 106
Table 134 – Y_AXIS attribute . 106
Table 135 – VALUE_ARRAY attributes . 107
Table 136 – NUMBER_OF_ELEMENTS attribute . 108
Table 137 – TYPE attribute . 108
Table 138 – VARIABLE attributes . 108
Table 139 – CLASS attributes . 109
Table 140 – TYPE attributes. 110
Table 141 – DOUBLE, FLOAT, INTEGER, UNSIGNED_INTEGER attributes . 112
Table 142 – BIT_ENUMERATED attributes. 114
Table 143 – status–class attributes . 115
Table 144 – ALL, AO, DV, TV attributes. 116
Table 145 – Enumerated types attributes. 116
Table 146 – Index type attributes. 117
Table 147 – Object reference type attribute . 117
Table 148 – DEFAULT_REFERENCE attributes . 117
Table 149 – String types attributes . 119
Table 150 – CONSTANT_UNIT attribute. 119
Table 151 – DEFAULT_VALUE attribute. 119
Table 152 – HANDLING attribute. 120
Table 153 – INITIAL_VALUE attribute. 120
Table 154 – POST_EDIT_ACTIONS, PRE_EDIT_ACTIONS, POST_READ_ACTIONS,
PRE_READ_ACTIONS, POST_WRITE_ACTIONS, PRE_WRITE_ACTIONS,
REFRESH_ACTIONS attributes. 121
Table 155 – READ/WRITE_TIMEOUT attributes. 123
Table 156 – STYLE attribute . 123
Table 157 – VALIDITY attributes . 123
Table 158 – VARIABLE_LIST attributes. 124
Table 159 – WAVEFORM attributes. 124
Table 160 – TYPE attribute . 125
Table 161 – XY attribute. 125

– 8 – 61804-3  IEC:2006(E)
Table 162 – YT attribute. 126
Table 163 – HORIZONTAL attribute . 127
Table 164 – VERTICAL attribute. 127
Table 165 – EMPHASIS attribute. 127
Table 166 – HANDLING attribute. 128
Table 167 – EXIT_ACTIONS, INIT_ACTIONS, REFRESH_ACTIONS attribute . 128
Table 168 – KEY_POINTS attribute . 129
Table 169 – X_VALUES, Y_VALUES attribute . 129
Table 170 – LINE_COLOR attribute. 130
Table 171 – LINE_TYPE attribute . 130
Table 172 – Y_AXIS attribute . 131
Table 173 – DEFINITION attributes . 131
Table 174 – HELP attribute . 132
Table 175 – LABEL attribute. 132
Table 176 – MEMBERS attributes. 133
Table 177 – RESPONSE_CODES attribute. 133
Table 178 – OPEN and CLOSE attributes. 134
Table 179 – IF, SELECT conditional . 135
Table 180 – Referencing an EDD instance. 136
Table 181 – Referencing elements of VARIABLE. 136
Table 182 – Referencing elements of RECORD. 136
Table 183 – Referencing elements of VALUE_ARRAY. 137
Table 184 – Referencing members of COLLECTION . 137
Table 185 – Referencing members of REFERENCE_ARRAY. 137
Table 186 – Referencing members of VARIABLE_LISTS . 138
Table 187 – Referencing members of a BLOCK_A PARAMETERS . 138
Table 188 – Referencing members of BLOCK_A PARAMETER_LISTS . 138
Table 189 – Referencing members of BLOCK_A LOCAL_PARAMETER. 138
Table 190 – Referencing BLOCK_A CHARACTERISTICS. 139
Table 191 – Referencing members of FILE. 139
Table 192 – Referencing elements of LIST . 139
Table 193 – Referencing members of CHART . 140
Table 194 – Referencing members of GRAPH . 140
Table 195 – Referencing members of SOURCE. 140
Table 196 – Referencing AXIS of a GRAPH. SOURCE, WAVEFORM . 141
Table 197 – String as a string literal . 141
Table 198 – String as a string variable. 141
Table 199 – String as an enumeration value . 142
Table 200 – String as a dictionary reference. 142
Table 201 – Referencing HELP and LABEL attributes of EDD instances . 142
Table 202 – String operation . 143
Table 203 – Format specifier. 143
Table 204 – Primary expressions. 144

61804-3  IEC:2006(E) – 9 –
Table 205 – Attribute values of VARIABLEs. 144
Table 206 – AXIS Attribute Values. 145
Table 207 – LIST Attribute Values . 145
Table 208 – Unary expression
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