1、INTERNATIONALSTANDARDIEC61182-10First edition1999-12Printed boards Electronic data description and transfer Part 10:Electronic data hierarchyCartes imprimes Description et transmission de donnes informatiques Partie 10:Hirarchie des donnes lectroniquesReference numberIEC 61182-10:1999(E)LICENSED TO
2、MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.NumberingAs from 1 January 1997 all IEC publications are issued with a designation in the60000 series.Consolidated publicationsConsolidated versions of some IEC publications including amendments area
3、vailable.For example,edition numbers 1.0,1.1 and 1.2 refer,respectively,to thebase publication,the base publication incorporating amendment 1 and the basepublication incorporating amendments 1 and 2.Validity of this publicationThe technical content of IEC publications is kept under constant review b
4、y the IEC,thus ensuring that the content reflects current technology.Information relating to the date of the reconfirmation of the publication is availablein the IEC catalogue.Information on the subjects under consideration and work in progress undertakenby the technical committee which has prepared
5、 this publication,as well as the listof publications issued,is to be found at the following IEC sources:IEC web site*Catalogue of IEC publicationsPublished yearly with regular updates(On-line catalogue)*IEC BulletinAvailable both at the IEC web site*and as a printed periodicalTerminology,graphical a
6、nd letter symbolsFor general terminology,readers are referred to IEC 60050:InternationalElectrotechnical Vocabulary(IEV).For graphical symbols,and letter symbols and signs approved by the IEC forgeneral use,readers are referred to publications IEC 60027:Letter symbols to beused in electrical technol
7、ogy,IEC 60417:Graphical symbols for use on equipment.Index,survey and compilation of the single sheets and IEC 60617:Graphical symbolsfor diagrams.*See web site address on title page.LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.INTE
8、RNATIONALSTANDARDIEC61182-10First edition1999-12Printed boards Electronic data description and transfer Part 10:Electronic data hierarchyCartes imprimes Description et transmission de donnes informatiques Partie 10:Hirarchie des donnes lectroniquesPRICE CODE IEC 1999 Copyright-all rights reservedNo
9、part of this publication may be reproduced or utilized in any form or by any means,electronic ormechanical,including photocopying and microfilm,without permission in writing from the publisher.International Electrotechnical Commission3,rue de Varemb Geneva,SwitzerlandTelefax:+41 22 919 0300e-mail:in
10、mailiec.ch IEC web site http:/www.iec.chXCFor price,see current catalogue Commission Electrotechnique Internationale International Electrotechnical CommissionLICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.2 61182-10 IEC:1999(E)CONTENT
11、SPageFOREWORD.9INTRODUCTION.10Clause1Scope.112Normative references.113Terms and definitions.113.1Filename extension.113.2Data hierarchy.113.3Keyword.114General requirements.124.1Category classification.124.1.1Categories and contents.124.1.2Description format common to all category files.144.2Correla
12、tion between referential information.154.3Physical layer and logical layer.174.3.1Logical layer definition.174.4Negative layer and positive layer.184.5Layer-to-layer interconnection information.194.5.1Concept of stack information.204.6Part information.215General specification.235.1Syntactical rules
13、in this document used to describe the EDH format.235.1.1Syntax notation characters.235.1.2Examples.245.2Types of standard category files.245.2.1File format.245.2.2Filename.245.2.3Abbreviated name of a printed board assembly.245.2.4Filename extension identifier.255.3Syntax used in category files.255.
14、3.1Record descriptions.265.3.2Parameters.275.3.3Numerical values.275.3.4Character strings.285.3.5Reserved words.285.3.6Formatted description.285.3.7Fixed format messages.295.4Coordinate system.295.5Libraries.305.5.1Types of library.305.5.2Internal libraries and external libraries.305.5.3Priority of
15、library calls.30LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.61182-10 IEC:1999(E)3 ClausePage5.6General description format.305.6.1Types of statements.305.6.2HEAD statement.315.6.3UNIT statement.315.6.4XCHAR statement.315.6.5COMMENT
16、statement.315.6.6END statement.315.6.7Description of comments.325.6.8DEFOLD statement.325.6.9DEFATR statement.326File for file control information(FIL).326.1General information.326.2Types of statements.326.2.1HEAD statement.336.2.2FORMAT statement.336.2.3LIMIT statement.336.2.4SYSTEM statement.346.2.5DATE statement.346.2.6AUTHOR statement.346.2.7FILE statement.346.2.8EXTERN statement.346.2.9NOSTD statement.346.2.10 UNIT statement.346.2.11 END statement.346.3Example of file control information.35