1、BRITISH STANDARDBS EN 81714-2:2007Design of graphical symbols for use in the technical documentation of products Part 2: Specification for graphical symbols in a computer sensible form, including graphical symbols for a reference library, and requirements for their interchangeThe European Standard E
2、N 81714-2:2007 has the status of a British StandardICS 01.080.50g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 81714-2:2007This British Stand
3、ard was published under the authority of the Standards Policy and Strategy Committee on 30 April 2007 BSI 2007ISBN 978 0 580 50615 4National forewordThis British Standard was published by BSI. It is the UK implementation of EN 81714-2:2007. It is identical with IEC 81714-2:2006. It supersedes BS EN
4、81714-2:1999 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee GEL/3, Documentation and graphical symbols.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all t
5、he necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments issued since publicationAmd. No. Date CommentsEUROPEAN STANDARD EN 81714-2 NORME EUROPENNE EUROPISCHE NORM March 2007 C
6、ENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr 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 w
7、orldwide for CENELEC members. Ref. No. EN 81714-2:2007 E ICS 01.080.50 Supersedes EN 81714-2:1998English version Design of graphical symbols for use in the technical documentation of products - Part 2: Specification for graphical symbols in a computer sensible form, including graphical symbols for a
8、 reference library, and requirements for their interchange (IEC 81714-2:2006) Cration de symboles graphiques utilisables dans la documentation technique de produits - Partie 2: Spcification pour symboles graphiques sous forme adapte lordinateur, y compris les symboles pour bibliothque de rfrences et
9、 exigences relatives leur change (CEI 81714-2:2006) Gestaltung von graphischen Symbolen zur Anwendung in der technischen Produktdokumentation - Teil 2: Spezifikation fr graphische Symbole in rechnerinterpretierbarer Form einschlielich graphischer Symbole fr eine Referenzbibliothek und Anforderungen
10、fr ihren Datenaustausch (IEC 81714-2:2006) This European Standard was approved by CENELEC on 2006-10-01. 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 altera
11、tion. 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 tra
12、nslation 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,
13、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. Foreword The text of the International Standard IEC 81714-2:2006, prepa
14、red by IEC TC 3, Information structures, documentation and graphical symbols, in cooperation with ISO subcommittee SC 1, Basic conventions, of ISO technical committee 10, Technical product documentation, was submitted to the formal vote and was approved by CENELEC as EN 81714-2 on 2006-10-01 without
15、 any modification. This European Standard supersedes EN 81714-2:1998. The main changes with respect to EN 81714-2:1998 are as follows: Subclauses 6.16, 6.18 and Annex D contain the major changes; other changes are basically updates. The following dates were fixed: latest date by which the EN has to
16、be implemented at national level by publication of an identical national standard or by endorsement (dop) 2007-10-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2009-10-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the Inte
17、rnational Standard IEC 81714-2:2006 was approved by CENELEC as a European Standard without any modification. _ EN 81714-2:2007 2 CONTENTS 1 Scope.6 2 Normative references .6 3 Terms and definitions .8 3.1 Graphical symbols for use on documents 8 3.2 Nodes .8 3.3 Administration of openings 9 3.4 Grap
18、hical constructs10 3.5 Routing and placing of graphical symbols in diagrams.10 3.6 Administration of graphical symbols 10 3.7 Text.11 4 Markers 12 4.1 Markers for reference points and connect nodes .12 4.2 Markers for alignment of text .12 5 Reference symbols.12 6 Specifications for symbols includin
19、g symbols for a reference library .13 6.1 General .13 6.2 Variants of graphical symbols14 6.3 Scaling16 6.4 Module sizes in reference libraries 17 6.5 Use of layer technique.18 6.6 Constructs used in the creation of graphical symbols 18 6.7 Text.20 6.8 Connect nodes 23 6.9 Reference point of referen
20、ce symbols .27 6.10 Identification of schematic connect nodes .28 6.11 Routing and placing of symbols .29 6.12 Identifying block 31 6.13 Descriptive data block .31 6.14 Defaulted location of identifying and descriptive block.33 6.15 Creation of reference symbols not shown in IEC 60617 nor in ISO 146
21、17).33 6.16 Classification of graphical symbols34 6.17 Description of symbols 35 6.18 Reference symbol identifier .36 Annex A (informative) Relations to IEC 60617 and ISO 14617 ).38 Annex B (informative) Interchange of diagrams and symbol libraries39 Annex C (informative) Application reference model
22、43 Annex D (informative) Product identification 63 Annex E (normative) Data types, value formats, recommended lengths, defaults .64 Annex F (normative) Requirements concerning lines67 Annex G (normative) Requirements concerning text.70 EN 81714-2:2007 3 Annex H (informative) Examples of pattern defi
23、nitions .74 Annex I (normative) Library versions Conformance requirements76 Annex J (normative) Requirements concerning global definitions in a library77 Annex K (informative) Data element type specification.79 Bibliography83 Figure 1 Examples of presentation of connect node linkage .9 Figure 2 Enco
24、ding of text alignment .12 Figure 3 Variants of a graphical symbol .14 Figure 4 Example of variants of a graphical symbol representing a thyristor.15 Figure 5 Example of variants of a graphical symbol representing a variable resistor showing terminal designations with respect to the product aspect.1
25、5 Figure 6 Example of variants of a graphical symbol representing a resistor16 Figure 7 Graphical symbols indicating a delayed action .16 Figure 8 Example of enlarging a symbol with a scaling factor 1:2.17 Figure 9 Example of a change of the module size 18 Figure 10 Example of use of the spline func
26、tion .19 Figure 11 Recommended colours.19 Figure 12 General labels in graphical symbols and their alignment 22 Figure 13 Use of general labels in graphical symbols.22 Figure 14 Examples of location of schematic connect nodes 23 Figure 15 Examples of locations of schematic connect nodes 24 Figure 16
27、Example of position of the textfield for product terminal designations .25 Figure 17 Example of position of the textfield for product terminal designations for symbols without terminal lines 26 Figure 18 Example of position of the textfields for product terminal and function terminal designations26
28、Figure 19 Reference point of symbols 27 Figure 20 Connect node identification 28 Figure 21 Schematic connect node identification.28 Figure 22 Examples of embedded areas 29 Figure 23 Examples of sectors for drawing connecting lines onto a schematic connect node 29 Figure 24 Example of graphical swapp
29、ing of schematic connect nodes 30 Figure 25 Example of graphical swapping of schematic connect nodes 30 Figure 26 Sequence and justification of the textfields associated with the identifying block.31 Figure 27 Justification and sequence of the textfields associated with the descriptive block.32 Figu
30、re 28 Example of defaulted locations of ib, db, and textfield for the product terminal designation33 Figure 29 Examples taken from the section on recording, integrating and measuring instruments.34 EN 81714-2:2007 4 Annex ZA (normative) Normative references to international publications with their c
31、orresponding European publications.84 Figure 30 Structure of the symbol identifier36 Figure 31 Examples of symbol identifiers of reference symbols37 Figure B.1 Data interchange 40 Figure C.1 EXPRESS-G model of the graphical part of a symbol44 Figure C.2 Hatching patterns .48 Figure C.3 EXPRESSG mode
32、l concerning text requirements50 Figure C.4 EXPRESSG symbol part .53 Figure C.5 Symbol variant text block part.60 Figure F.1 Line end types and their codes .68 Figure F.2 Line corner types and their codes .69 Figure F.3 Grouping of lines.69 Figure G.1 Character slant angle .70 Figure G.2 Character s
33、pacing 71 Figure G.3 Tabular lettering .71 Figure G.4 Examples of proportional lettering with different character spacing.72 Figure G.5 Possible alignments of a textstring using a character slant angle of 0 and a rotation of 0 73 EN 81714-2:2007 5 DESIGN OF GRAPHICAL SYMBOLS FOR USE IN THE TECHNICAL
34、 DOCUMENTATION OF PRODUCTS Part 2: Specification for graphical symbols in a computer sensible form, including graphical symbols for a reference library, and requirements for their interchange 1 Scope This part of International Standard 81714 specifies requirements for graphical symbols to be include
35、d in a reference symbol library in a computer sensible form, and requirements for their interchange among computer aided tools. The reference symbol library may be used as a basis for the design and editing of documents, and for the interchange of documents and graphical symbol libraries among compu
36、ter-aided tools. The specification of a physical file format required for the interchange is not included in this standard. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For unda
37、ted references, the latest edition of the referenced document (including any amendments) applies. IEC 60617-DB, Graphical symbols for diagrams IEC 61082-1, Preparation of documents used in electrotechnology Part 1: General requirements IEC 61286:2001, Information technology Coded graphic character s
38、et for use in the preparation of documents used in electrotechnology and for information interchange IEC 61346-1:1996, Industrial systems, installations and equipment, and industrial products Structuring principles and reference designations Part 1: Basic rules IEC 61346-2:2000, Industrial systems,
39、installations and equipment, and industrial products Structuring principles and reference designations Part 2: Classification of objects and codes for classes IEC 61360-1:2004, Standard data element types with associated classification scheme for electric components Part 1: Definitions Principles an
40、d methods IEC 61360-4, Standard data element types with associated classification scheme for electric components Part 4: IEC reference collection of standard data element types and component classes EN 81714-2:2007 6 IEC 61666:1997, Industrial systems, installations and equipment and industrial prod
41、ucts Identification of terminals within a system IEC 61966-2-1:1999, Multimedia systems and equipment Colour measurement and management Part 2-1: Colour management Default RGB colour space sRGB IEC 81714-3:2004, Design of graphical symbols for use in the technical documentation of products Part 3: C
42、lassification of connect nodes, networks and their encoding ISO/IEC 646:1991, Information technology ISO 7-bit coded character set for information interchange ISO/IEC 7942-1:1994, Information technology Computer graphics and image processing Graphical Kernel System (GKS) Part 1: Functional descripti
43、on ISO/IEC 9592-1:1997, Information technology Computer graphics and image processing Programmers Hierarchical Interactive Graphics System (PHIGS) Part 1: Functional description ISO 128-20:1996, Technical drawings General principles of presentation Part 20: Basic conventions for lines ISO 128-21:199
44、7, Technical drawings General principles of presentation Part 21: Preparation of lines by CAD-systems ISO 639-1:2002, Codes for the representation of names of languages Part 1: Alpha-2-code ISO 3098-0:1997, Technical product documentation Lettering Part 0: General requirements ISO 3098-5:1997, Techn
45、ical product documentation Lettering Part 5: CAD lettering of the Latin alphabet, numerals and marks ISO 3166-1:1997, Codes for the representation of names of countries and their subdivisions Part 1: Country codes ISO 6428:1982, Technical drawings Requirements for micro copying ISO 6523-1:1998, Info
46、rmation technology Structure for the identification of organizations and organization parts Part 1: Identification of organization identification schemes ISO 10303-201:1994, Industrial automation systems and integration Product data representation and exchange Part 201: Application protocol: Explici
47、t draughting ISO 81714-1:1999, Design of graphical symbols for use in the technical documentation of products Part 1: Basic rules EN 81714-2:2007 7 3 Terms and definitions For the purposes of this document, and in addition to the definitions contained in ISO 81714-1 and IEC 61346-1, the following te
48、rms and definitions apply. 3.1 Graphical symbols for use on documents 3.1.1 function symbol graphical symbol representing an object with a defined behaviour, and provided with input and output functional nodes NOTE Example of function symbol: the symbol S01567 in IEC 60617 for an AND-function. 3.1.2
49、 product symbol graphical symbol representing an object with a defined behaviour, and provided with nodes, specifically implemented in either hardware or software NOTE Example of product symbol: the symbol S01579 of IEC 60617 for an AND-gate with negated output (part of SN7410). 3.1.3 graphical symbol occurrence graphical symbol presented in a diagram including the
