1、NEMA Standards PublicationNational Electrical Manufacturers AssociationNEMA ICS 61131-1:2005 (R2013)Programmable Controllers Part 1: General InformationNEMA ICS 61131-1-2005 (R2013) IEC Publication 61131-1 Programmable Controllers Part 1: General Information Published by: National Electrical Manufac
2、turers Association 1300 North 17thStreet, Suite 900 Rosslyn, Virginia 22209 www.nema.org 2015 National Electrical Manufacturers Association. All rights, including translation into other languages, reserved under the Universal Copyright Convention, the Berne Convention for the Protection of Literary
3、and Artistic Works, and the International and Pan American copyright conventions. 2015 National Electrical Manufactures Association NOTICE AND DISCLAIMER The information in this publication was considered technically sound by a consensus among persons engaged in its development at the time it was ap
4、proved. Consensus does not necessarily mean there was unanimous agreement among every person participating in the development process. The National Electrical Manufacturers Association (NEMA) standards and guideline publications, of which the document herein is one, are developed through a voluntary
5、 standards development process. This process brings together volunteers and/or seeks out the views of persons who have an interest in the topic covered by this publication. Although NEMA administers the process and establishes rules to promote fairness in the development of consensus, it does not wr
6、ite the documents, nor does it independently test, evaluate, or verify the accuracy or completeness of any information or the soundness of any judgments contained in its standards and guideline publications. NEMA disclaims liability for any personal injury, property, or other damages of any nature,
7、whether special, indirect, consequential, or compensatory, directly or indirectly resulting from the publication, use of, application, or reliance on this document. NEMA disclaims and makes no guaranty or warranty, express or implied, as to the accuracy or completeness of any information published h
8、erein, and disclaims and makes no warranty that the information in this document will fulfill any particular purpose(s) or need(s). NEMA does not undertake to guarantee the performance of any individual manufacturers or sellers products or services by virtue of this standard or guide. In publishing
9、and making this document available, NEMA is not undertaking to render professional or other services for or on behalf of any person or entity, nor is NEMA undertaking to perform any duty owed by any person or entity to someone else. Anyone using this document should rely on his or her own independen
10、t judgment or, as appropriate, seek the advice of a competent professional in determining the exercise of reasonable care in any given circumstance. Information and other standards on the topic covered by this publication may be available from other sources, which the user may wish to consult for ad
11、ditional views or information not covered by this publication. NEMA has no power, nor does it undertake to police or enforce compliance with the contents of this document. NEMA does not certify, test, or inspect products, designs, or installations for safety or health purposes. Any certification or
12、other statement of compliance with any health- or safety-related information in this document shall not be attributable to NEMA and is solely the responsibility of the certifier or maker of the statement. NEMA ICS 61131-1-2005 (R2013) Page i 2015 National Electrical Manufactures Association TABLE OF
13、 CONTENTS Page Foreword ii Referenced Standards . iv Amendments v IEC 61131-1 . 1 NEMA ICS 61131-1-2005 (R2013) Page ii 2015 National Electrical Manufactures Association Foreword This Standards Publication is a NEMA Adoptive Standard based on Part 1 of IEC 61131, Programmable Controllers. This Stand
14、ards Publication was prepared by a technical committee of the NEMA Automation Products and Systems Section. It was approved in accordance with the bylaws of NEMA and supersedes NEMA Standards Publication ICS 3-1988, Part 3-304. This Standards Publication provides practical information concerning rat
15、ings, construction, test, performance, and manufacture of industrial control equipment. These standards are used by the electrical industry to provide guidelines for the manufacture and proper application of reliable products and equipment and to promote the benefits of repetitive manufacturing and
16、widespread product availability. NEMA Standards represent the result of many years of research, investigation, and experience by the members of NEMA, its predecessors, its Sections and Committees. They have been developed through continuing consultation among manufacturers, users and national engine
17、ering societies and have resulted in improved serviceability of electrical products with economies to manufacturers and users. One of the primary purposes of this Standards Publication is to encourage the production of reliable control equipment which, in itself, functions in accordance with these a
18、ccepted standards. Some portions of these standards, such as electrical spacings and interrupting ratings, have a direct bearing on safety; almost all of the items in this publication, when applied properly, contribute to safety in one way or another. Properly constructed industrial control equipmen
19、t is, however, only one factor in minimizing the hazards which may be associated with the use of electricity. The reduction of hazard involves the joint efforts of the various equipment manufacturers, the system designer, the installer, and the user. Information is provided herein to assist users an
20、d others in the proper selection of control equipment. The industrial control manufacturer has limited or no control over the following factors which are vital to safe installation: environmental conditions system design equipment selection and application installation operating practices maintenanc
21、e This publication is not intended to instruct the user of control equipment with regard to these factors except insofar as suitable equipment to meet needs can be recognized in this publication and some application guidance is given. This Standards Publication is necessarily confined to defining th
22、e construction requirements for industrial control equipment and to providing recommendations for proper selection for use under normal or certain specific conditions. Since any piece of industrial control equipment can be installed, operated, and maintained in such a manner that hazardous condition
23、s may result, conformance with this publication does not by itself assure a safe installation. When, however, equipment conforming with these standards is properly selected and is installed in accordance with the National Electrical Code and properly maintained, the hazards to persons and property w
24、ill be reduced. NEMA ICS 61131-1-2005 (R2013) Page iii 2015 National Electrical Manufactures Association To continue to serve the best interests of users, NEMA is actively cooperating with other standardization organizations in the development of simple and more universal metrology practices. In thi
25、s Standards Publication, the U.S. customary units are gradually being supplemented by those of the modernized metric system known as the International Systems of Units (SI). This transition involves no changes in standard dimensions, tolerances, or performance specifications. NEMA Standards Publicat
26、ions are subject to periodic review. They are revised frequently to reflect user input and to meet changing conditions and technical progress. Users should secure the latest editions. Inquiries, comments, and proposed or recommended revisions should be submitted to the concerned NEMA product subdivi
27、sion by contacting the: Senior Technical Director, Operations National Electrical Manufacturers Association 1300 North 17thStreet, Suite 900 Rosslyn, Virginia 22209 NEMA ICS 61131-1-2005 (R2013) Page iv 2015 National Electrical Manufactures Association Referenced Standards The following standards co
28、ntain provisions which, through reference in this text, constitute provisions of this NEMA Standards Publication. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this Standard are encouraged to investigate the p
29、ossibility of applying the most recent editions of the standards indicated below. International Electrotechnical Commission 1, rue de Varemb Geneva, Switzerland IEC 61131-1 Programmable ControllersPart 1: General Information National Fire Protection Association Publication Sales Department Batteryma
30、rch Park Quincy, MA 02269 ANSI/NFPA 70 National Electrical CodeNEMA ICS 61131-1-2005 (R2013) Page v 2015 National Electrical Manufactures Association Amendments IEC 61131-1, Programmable ControllersPart 1: General Information, is adopted with the amendments noted below. Subclause 2.18: Replace the d
31、efinition in subclause 2.18 of IEC 61131-1 with the definition of device given in ANSI/NFPA 70, National Electrical Code. NEMA Standard Where a conflict exists between the provisions of ICS 2.1 and other NEMA Standards Publications, the provisions of ICS 2.1 shall govern in the area of programmable
32、controllers and their associated peripherals. NEMA Standard Where a conflict exists between the provisions of ICS 2.1 and ANSI/NFPA 70, National Electrical Code, the provisions of ANSI/NFPA 70 shall govern. NEMA Standard NEMA ICS 61131-1-2005 (R2013) Page vi 2015 National Electrical Manufactures Ass
33、ociation INTERNATIONALSTANDARDIEC61131-1Second edition2003-05Programmable controllers Part 1:General informationAutomates programmables Partie 1:Informations gnralesReference numberIEC 61131-1:2003(E)Publication numberingAs from 1 January 1997 all IEC publications are issued with a designation in th
34、e60000 series. For example, IEC 34-1 is now referred to as IEC 60034-1.Consolidated editionsThe IEC is now publishing consolidated versions of its publications. For example,edition numbers 1.0, 1.1 and 1.2 refer, respectively, to the base publication, thebase publication incorporating amendment 1 an
35、d the base publication incorporatingamendments 1 and 2.Further information on IEC publicationsThe technical content of IEC publications is kept under constant review by the IEC,thus ensuring that the content reflects current technology. Information relating tothis publication, including its validity
36、, is available in the IEC Catalogue ofpublications (see below) in addition to new editions, amendments and corrigenda.Information on the subjects under consideration and work in progress undertakenby the technical committee which has prepared this publication, as well as the listof publications issu
37、ed, is also available from the following: IEC Web Site (www.iec.ch) Catalogue of IEC publicationsThe on-line catalogue on the IEC web site (http:/www.iec.ch/searchpub/cur_fut.htm)enables you to search by a variety of criteria including text searches, technicalcommittees and date of publication. On-l
38、ine information is also available onrecently issued publications, withdrawn and replaced publications, as well ascorrigenda. IEC Just Published This summary of recently issued publications (http:/www.iec.ch/online_news/justpub/jp_entry.htm) is also available by email. Please contact the CustomerServ
39、ice Centre (see below) for further information. Customer Service CentreIf you have any questions regarding this publication or need further assistance,please contact the Customer Service Centre:Email: custserviec.chTel: +41 22 919 02 11Fax: +41 22 919 03 00INTERNATIONALSTANDARDIEC61131-1Second editi
40、on2003-05Programmable controllers Part 1:General informationAutomates programmables Partie 1:Informations gnrales IEC 2003 Copyright - all rights reservedNo part of this publication may be reproduced or utilized in any form or by any means, electronic ormechanical, including photocopying and microfi
41、lm, without permission in writing from the publisher.International Electrotechnical Commission, 3, rue de Varemb, PO Box 131, CH-1211 Geneva 20, SwitzerlandTelephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmailiec.ch Web: www.iec.chRFor price, see current cataloguePRICE CODECommission
42、Electrotechnique InternationaleInternational Electrotechnical Commission 2 61131-1 IEC:2003(E) 2015 National Electrical Manufactures Association CONTENTS FOREWORD . 3 INTRODUCTION . 5 1 Scope . 6 2 Normative references 6 3 Terms and definitions 7 4 Functional characteristics 8 4.1 Basic functional s
43、tructure of a programmable controller system 8 4.2 Characteristics of the CPU function 11 4.3 Characteristics of the interface function to sensors and actuators . 13 4.4 Characteristics of the communication function 14 4.5 Characteristics of the human-machine interface (HMI) function 14 4.6 Characte
44、ristics of the programming, debugging, monitoring, testing and documentation functions 14 4.7 Characteristics of the power-supply functions . 16 5 Availability and reliability . 16 Bibliography 18 Figure 1 Basic functional structure of a PLC-system . 8 Figure 2 Programmable controller hardware model
45、 (from IEC 61131-5) . 9 Figure 3 Typical interface/port diagram of a PLC-system (from IEC 61131-2) 10 Table 1 Summary of programmable functions . 12 61131-1 IEC:2003(E) 3 2015 National Electrical Manufactures Association INTERNATIONAL ELECTROTECHNICAL COMMISSION _ PROGRAMMABLE CONTROLLERS Part 1: Ge
46、neral information FOREWORD 1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of the IEC is to promote international co-operation on all questions concerning
47、standardization in the electrical and electronic fields. To this end and in addition to other activities, the IEC publishes International Standards. Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this prepara
48、tory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. The IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organ
49、izations. 2) The formal decisions or agreements of the IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested National Committees. 3) The documents produced have the form of recommendations for international use and are published in the form of standards, technical specifications, technical reports or guides and they are accepted b
