1、BRITISH STANDARD BS EN 61131-1:2003 Programmable controllers Part 1: General information The European Standard EN 61131-1:2003 has the status of a British Standard ICS 25.040.40; 35.240.50 BS EN 61131-1:2003 This British Standard was published under the authority of the Standards Policy and Strategy
2、 Committee on 8 August 2003 BSI 8 August 2003 ISBN 0 580 42395 6 National foreword This British Standard is the official English language version of EN 61131-1:2003. It is identical with IEC 61131-1:2003. It supersedes BS EN 61131-1:1994 which is withdrawn. The UK participation in its preparation wa
3、s entrusted by Technical Committee GEL/65, Measurement and control, to Subcommittee GEL/65/2, Elements of systems, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which imple
4、ment international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication doe
5、s not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/Europea
6、n committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages
7、 2 to 18, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEAN STANDARD EN 61131-1 NORME EUROPENNE EUROPISCHE NORM July 2003 CENELEC European Committe
8、e for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2003 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC mem
9、bers. Ref. No. EN 61131-1:2003 E ICS 25.040.40; 35.240.50 Supersedes EN 61131-1:1994English version Programmable controllers Part 1: General information (IEC 61131-1:2003) Automates programmables Partie 1: Informations gnrales (CEI 61131-1:2003) Speicherprogrammierbare Steuerungen Teil 1: Allgemeine
10、 Informationen (IEC 61131-1:2003) This European Standard was approved by CENELEC on 2003-07-01. 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-
11、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
12、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, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungar
13、y, Iceland, Ireland, Italy, Lithuania, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom. EN 63111-:10023 - - 2 Foreword The text of document 65B/484/FDIS, future edition 2 of IEC 61131-1, prepared by SC 65B, Devices, of IEC TC 65, Industrial-p
14、rocess measurement and control, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61131-1 on 2003-07-01. This European Standard supersedes EN 61131-1:1994. The following dates were fixed: latest date by which the EN has to be implemented at national level by publicatio
15、n of an identical national standard or by endorsement (dop) 2004-04-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2006-07-01 Annexes designated “normative“ are part of the body of the standard. In this standard, annex ZA is normative. Annex ZA has
16、been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 61131-1:2003 was approved by CENELEC as a European Standard without any modification. _ Page2 EN611311:2003 CONTENTS INTRODUCTION.4 1 Scope.5 2 Normative references5 3 Terms and definitions6 4 Functional character
17、istics7 4.1 Basic functional structure of a programmable controller system7 4.2 Characteristics of the CPU function10 4.3 Characteristics of the interface function to sensors and actuators.12 4.4 Characteristics of the communication function13 4.5 Characteristics of the human-machine interface (HMI)
18、 function 13 4.6 Characteristics of the programming, debugging, monitoring, testing and documentation functions 13 4.7 Characteristics of the power-supply functions.15 5 Availability and reliability .15 Annex ZA (normative) Normative references to international publications with their corresponding
19、European publications 17 Bibliography 18 Figure 1 Basic functional structure of a PLC-system .7 Figure 2 Programmable controller hardware model (from IEC 61131-5).8 Figure 3 Typical interface/port diagram of a PLC-system (from IEC 61131-2) 9 Table 1 Summary of programmable functions .11 Page3 EN6113
20、11:2003 INTRODUCTION This Part of IEC 61131 constitutes Part 1 of a series of standards on programmable controllers and their associated peripherals and should be read in conjunction with the other parts of the series. Where a conflict exists between this and other IEC standards (except basic safety
21、 standards), the provisions of this standard should be considered to govern in the area of programmable controllers and their associated peripherals. The purposes of this standard are: Part 1 establishes the definitions and identifies the principal characteristics relevant to the selection and appli
22、cation of programmable controllers and their associated peripherals; Part 2 specifies equipment requirements and related tests for programmable controllers (PLC) and their associated peripherals; Part 3 defines, for each of the most commonly used programming languages, major fields of application, s
23、yntactic and semantic rules, simple but complete basic sets of programming elements, applicable tests and means by which manufacturers may expand or adapt those basic sets to their own programmable controller implementations; Part 4 gives general overview information and application guidelines of th
24、e standard for the PLC end-user; Part 5 defines the communication between programmable controllers and other electronic systems; Part 6 is reserved; Part 7 defines the programming language for fuzzy control; Part 8 gives guidelines for the application and implementation of the programming languages
25、defined in Part 3. Page4 EN611311:2003 PROGRAMMABLE CONTROLLERS Part 1: General information 1 Scope This Part of IEC 61131 applies to programmable controllers (PLC) and their associated peri- pherals such as programming and debugging tools (PADTs), human-machine interfaces (HMIs), etc., which have a
26、s their intended use the control and command of machines and industrial processes. PLCs and their associated peripherals are intended to be used in an industrial environment and may be provided as open or enclosed equipment. If a PLC or its associated peripherals are intended for use in other enviro
27、nments, then the specific requirements, standards and installation practices for those other environments must be additionally applied to the PLC and its associated peripherals. The functionality of a programmable controller can be performed as well on a specific hardware and software platform as on
28、 a general-purpose computer or a personal computer with industrial environment features. This standard applies to any products performing the function of PLCs and/or their associated peripherals. This standard does not deal with the functional safety or other aspects of the overall automated system.
29、 PLCs, their application programme and their associated peripherals are considered as components of a control system. Since PLCs are component devices, safety considerations for the overall automated system including installation and application are beyond the scope of this Part. However, PLC safety
30、 as related to electric shock and fire hazards, electrical interference immunity and error detecting of the PLC-system operation (such as the use of parity checking, self-testing diagnostics, etc.), are addressed. Refer to IEC 60364 or applicable national/local regulations for electrical instal- lat
31、ion and guidelines. This Part of IEC 61131 gives the definitions of terms used in this standard. It identifies the principal functional characteristics of programmable controller systems. 2 Normative references The following referenced documents are indispensable for the application of this document
32、. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 61131-2, Programmable controllers Part 2: Equipment requirements and tests 1IEC 61131-3:2003, Programmable controllers Part 3: Program
33、ming languages _ 1To be published. Page5 EN611311:2003 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 application programme or user programme logical assembly of all the programming language elements and constructs necessary for the intended
34、 signal processing required for the control of a machine or process by a PLC-system 3.2 automated system control system beyond the scope of IEC 61131, in which PLC-systems are incorporated by or for the user, but which also contains other components including their application programmes 3.3 field d
35、evice catalogued part to provide input and/or output interfaces or to provide data pre- processing/post-processing to the programmable controller system. A remote field device may operate autonomously from the programmable controller system. It can be connected to the programmable controller using a
36、 field bus 3.4 ladder diagram or relay ladder diagram one or more networks of contacts, coils, graphically represented functions, function blocks, data elements, labels, and connective elements, delimited on the left and (optionally) on the right by power rails 3.5 programmable (logic) controller (P
37、LC) digitally operating electronic system, designed for use in an industrial environment, which uses a programmable memory for the internal storage of user-oriented instructions for implementing specific functions such as logic, sequencing, timing, counting and arithmetic, to control, through digita
38、l or analogue inputs and outputs, various types of machines or processes. Both the PLC and its associated peripherals are designed so that they can be easily integrated into an industrial control system and easily used in all their intended functions NOTE The abbreviation PLC is used in this standar
39、d to stand for programmable controllers, as is the common practice in the automation industry. The use of PC as an abbreviation for programmable controllers leads to confusion with personal computers. 3.6 programmable controller system or PLC-system user-built configuration, consisting of a programm
40、able controller and associated peripherals, that is necessary for the intended automated system. It consists of units interconnected by cables or plug-in connections for permanent installation and by cables or other means for portable and transportable peripherals 3.7 programming and debugging tool
41、(PADT) catalogued peripheral to assist in programming, testing, commissioning and troubleshooting the PLC-system application, programme documentation and storage and possibly to be used as HMIs. PADTs are said to be pluggable when they may be plugged or unplugged at any time into their associated in
42、terface, without any risk to the operators and the application. In all other cases, PADTs are said to be fixed Page6 EN611311:2003 3.8 remote input/output station (RIOS) manufacturers catalogued part of a PLC-system including input and/or output interfaces allowed to operate only under the hierarchy
43、 of the main processing unit (CPU) for I/O multiplexing/demultiplexing and data pre-processing/post-processing. The RIOS is the only permitted limited autonomous operation, for example, under emergency conditions such as breakdown of the communication link to the CPU or of the CPU itself, or when ma
44、intenance and troubleshooting operations are to be performed 4 Functional characteristics 4.1 Basic functional structure of a programmable controller system The general structure with main functional components in a programmable controller system is illustrated in Figures 1, 2 and 3. These functions
45、 communicate with each other and with the signals of the machine/process to be controlled. POWER SUPPLY function Mains supply Other systems INTERFACE functions to sensors and actuators Machine/Process APPLICATION programmer OPERATOR COMMUNICATION functions PROGRAMMING, DEBUGGING, TESTING functions H
46、UMAN-MACHINE INTERFACE functions DATA STORAGE APPLICATION PROGRAMME STORAGE functions OPERATING SYSTEM functions APPLICATION PROGRAMME functions SIGNAL PROCESSING functions - IEC 1621/03Figure 1 Basic functional structure of a PLC-system Page7 EN611311:2003 Memory (ies) and processing unit(s) Input
47、module(s) Output module(s) Communication module(s) Power supply unit(s) Main processing unit Remote I/O station(s) Peripherals Implementer-specific subsystem(s) IEC 1622/03Figure 2 Programmable controller hardware model (from IEC 61131-5) Page8 EN611311:2003 Limit of the scope of this standard Inter
48、faced devices and signals Open communication signals interface/port (internal communications also open to third-party devices Be H K G Bi Be Be Be Bi Bi Bi G H H Auxiliary power supply (optional)Protective earthing port Peripherals (permanently /non-permanently installed) Mains power input interface
49、/port Digital and analogue input signal interface/port I/O power interface/port I/O power interface/port Digital and analogue output signal interface/port Communication signals interface/port with third-party devices (computers, printers, fieldbus, etc.) Auxiliary power output interface/port (to provide energy for sensors and actuators) Input module(s) Commu- nication modules (optional) Memory (ies) and processing unit(s) Power supply
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