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Continuous function chart programming method

A programming method and function diagram technology, applied in the direction of program control design, program control device, instrument, etc., can solve the problem of inflexibility of continuous function diagram CFC programming

Active Publication Date: 2015-04-29
BEIJING ZONGHENG ELECTROMECHANICAL TECH DEV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, continuous function chart CFC programming is not flexible enough to meet the actual needs of users in industrial control. Therefore, it is very necessary to provide a more flexible continuous function chart CFC programming method

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Embodiment Construction

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] A Continuous Function Chart (CFC) consists of several function blocks. Each function block can realize a simple logic function. By connecting the input connectors and output connectors of different function blocks, continuous function chart CFC programming can realize complex logic function control.

[0026] Specifically, the program...

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Abstract

The invention relates to a continuous function chart programming method. The method includes: determining a task in a continuous function chart, wherein the task includes multiple function blocks; modifying an initial value of an output connector of at least one function block; when the function block is executed, updating the initial value of the output connector.

Description

technical field [0001] The invention relates to an industrial control programming method, in particular to a continuous function diagram programming method. Background technique [0002] Continuous Function Chart (CFC-Continuous Function Chart) is a graphical programming language. Continuous function chart programming has the following characteristics: (1) Automatically generate programs by drawing function charts; (2) Has a powerful prefabricated program library; (3) Reduces development costs and errors through simple connections. Continuous function diagram not only has the typical elements of programmable logic controller PLC (Programmable Logic Controller), such as: input / output, timer, counter, symbol table, etc., but also has the characteristics of graphical programming language language, which is very suitable for Process control and systems engineering. CFC originates from the IEC 61131-3 standard and is a Function Block Diagram of one of the five programming langu...

Claims

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Application Information

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IPC IPC(8): G06F9/45G06F9/44
Inventor 谢冰若郑雪洋夏菲高吉磊
Owner BEIJING ZONGHENG ELECTROMECHANICAL TECH DEV
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