1、INTERNATIONALSTANDARDIEC61131-1Second edition2003-05Programmable controllers Part 1:General informationAutomates programmables Partie 1:Informations gnralesReference numberIEC 61131-1:2003(E)Copyright International Electrotechnical Commission Provided by IHS under license with IECLicensee=Technip Ab
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9、006 06:57:29 MSTNo reproduction or networking permitted without license from IHS-,-,-INTERNATIONALSTANDARDIEC61131-1Second edition2003-05Programmable controllers Part 1:General informationAutomates programmables Partie 1:Informations gnrales IEC 2003 Copyright-all rights reservedNo part of this publ
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11、 Telefax:+41 22 919 03 00 E-mail:inmailiec.ch Web:www.iec.chRFor price,see current cataloguePRICE CODECommission Electrotechnique InternationaleInternational Electrotechnical Commission Copyright International Electrotechnical Commission Provided by IHS under license with IECLicensee=Technip Abu Dab
12、hi/5931917101 Not for Resale,02/12/2006 06:57:29 MSTNo reproduction or networking permitted without license from IHS-,-,-2 61131-1 IEC:2003(E)CONTENTSFOREWORD.3INTRODUCTION.51Scope.62Normative references.63Terms and definitions.74Functional characteristics.84.1Basic functional structure of a program
13、mable controller system.84.2Characteristics of the CPU function.114.3Characteristics of the interface function to sensors and actuators.134.4Characteristics of the communication function.144.5Characteristics of the human-machine interface(HMI)function.144.6Characteristics of the programming,debuggin
14、g,monitoring,testing anddocumentation functions.144.7Characteristics of the power-supply functions.165Availability and reliability.16Bibliography.18Figure 1 Basic functional structure of a PLC-system.8Figure 2 Programmable controller hardware model(from IEC 61131-5).9Figure 3 Typical interface/port
15、diagram of a PLC-system(from IEC 61131-2).10Table 1 Summary of programmable functions.12Copyright International Electrotechnical Commission Provided by IHS under license with IECLicensee=Technip Abu Dabhi/5931917101 Not for Resale,02/12/2006 06:57:29 MSTNo reproduction or networking permitted withou
16、t license from IHS-,-,-61131-1 IEC:2003(E)3 INTERNATIONAL ELECTROTECHNICAL COMMISSION_PROGRAMMABLE CONTROLLERS Part 1:General informationFOREWORD1)The IEC(International Electrotechnical Commission)is a worldwide organization for standardization comprisingall national electrotechnical committees(IEC National Committees).The object of the IEC is to promoteinternational co-operation on all questions concerning standardization in the electrical and electronic fields.Tothis end and in addition to oth