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GB/T 21654-2008: GRAFCET specification language for sequential function charts
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| GB/T 21654-2008 | English | 874 |
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GRAFCET specification language for sequential function charts
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GB/T 21654-2008
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Basic data | Standard ID | GB/T 21654-2008 (GB/T21654-2008) | | Description (Translated English) | GRAFCET specification language for sequential function charts | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | K09 | | Classification of International Standard | 29.020 | | Word Count Estimation | 44,417 | | Date of Issue | 2008-03-24 | | Date of Implementation | 2008-11-01 | | Older Standard (superseded by this standard) | GB/T 6988.6-1993 | | Quoted Standard | GB/T 2900.56-2002; GB/T 4728.12 | | Adopted Standard | IEC 60848-2002, IDT | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the order of the control system in the conduct functional description GRAFCET specification language. This standard also specifies the GRAFCET graphical representation of symbols, rules and instructions. | GB/T 21654-2008: GRAFCET specification language for sequential function charts---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
GRAFCET specification language for sequential function charts
ICS 29.020
K09
National Standards of People's Republic of China
GB/T 21654-2008/IEC 60848.2002
Replacing GB/T 6988.6-1993
Sequential Function Chart diagram with GRAFCET specification language
(IEC 60848.2002, IDT)
Posted 2008-03-24
2008-11-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Preface Ⅰ
Introduction Ⅱ
1 Scope 1
2 Normative references 1
3 Terms and definitions
4 General 2
5 graphic representation of the element 8
Graphical representation of the structure of the order of 19 6
7 structured 24
Appendix A (informative) Pressure Control Example 30
Annex B (informative) Example. Automatic weighing - mixing device 31
Relations Appendix C (informative) This standard and GB/T 15969.3 sequential function diagram between 37
References 39
GB/T 21654-2008/IEC 60848.2002
Foreword
This standard is identical with IEC 60848.2002 "sequential function diagram with GRAFCET specification language" (in English).
This standard replaces GB/T 6988.6-1993 "control system functions to draw the chart." Compared with GB/T 6988.6-1993, like
Under changes.
--- Made a comprehensive technical amendment;
--- Mainly adds the following concepts. input events, internal events, designation, allocation, forcing, macro steps and packaging.
The Standard Appendix A, Appendix B and Appendix C are informative appendices.
This standard by the National Electrical information structure documentation and graphical symbols Standardization Technical Committee and centralized.
This standard is drafted by. Mechanical Science Research Institute of Machine Productivity Promotion Center of Information Industry, the Ministry of Posts and Telecommunications Industry standardization.
The main drafters of this standard. Guo Ting, Tan Yong, high Yongmei Shen Bing, high Huimin, Li Ping.
This standard supersedes the previous editions.
--- GB/T 6988.6-1993.
GB/T 21654-2008/IEC 60848.2002
Introduction
To meet the needs of users, this standard was amended to increase the number of new concepts in the specification language and the structure and classification
description.
The first edition has been described in language and for GRAFCET predetermined function, in addition, there is a need to increase the form and behavior
Content, these are the true definition of a specification language basic elements.
For these reasons, the need for a comprehensive revision of the specification file.
This standard is mainly for people who work (design requirements of the system (robot control commands, safety components, etc.) behavior described,
Production and maintenance engineers, etc.). The specification language can also be used as a means designers and users of automated systems to communicate.
GB/T 21654-2008/IEC 60848.2002
Sequential Function Chart diagram with GRAFCET specification language
1 Scope
This standard provides for the control system in order conduct the functions described GRAFCET1) specification language.
This standard also specifies the symbol GRAFCET graphical representation, rules and instructions.
This standard also lay the foundation for industrial applications in automated production systems, there is no particular applications excluded.
With GRAFCET specification developed within the scope of the present method is not included in the standard. Such as GB/T 15969.3-1995 provisions
"SFC language" is not included, the language provisions of the PLC programming language collection.
Note. For more information about the relationship between this standard and GB/T 15969.3-1995 execution of SFC language, see Appendix C.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 2900.56-2002 Electrotechnical terminology automatic control (idt IEC 60050-351.1998)
GB/T 4728.12 Graphical symbols for diagrams - Part 12. Binary logic elements (idt IEC 60617database)
3 Terms and Definitions
The following terms and definitions apply to this standard. The term preceded by "*" are used only for GRAFCET specification language. By English terminology
In alphabetical order.
3.1
GRAFCET language elements and steps related activities represent output variables carried out.
3.2
Graphically describe the behavior of the system, such as. the relationship between two or more variables, operators or states.
3.3
Represents the path between step progress GRAFCET language element, it is connected to the step conversion will be connected to the step.
3.4
Use the menu map GRAFCET
NOTE. "grafcet table map" abbreviated "" grafcet ".
3.5
In all parts of the system input variables in order, at least due to a change in value caused by the event.
1) conversion phase instruction function diagram.
GB/T 21654-2008/IEC 60848.2002
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