Method for converting ladder diagram language into structure text language

A technology of structured text and ladder diagram, applied in the direction of program control device, etc., can solve the problems such as the lack of a ladder diagram language conversion method, difficulty in mastering, and the intuition of electrical engineering personnel, so as to reduce the threshold, facilitate use, and improve programming efficiency. Effect
CN101957745AActive Publication Date: 2011-01-26SHENYANG GOLDING NC & INTELLIGENCE TECH CO LTD
1 Cites 31 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHENYANG GOLDING NC & INTELLIGENCE TECH CO LTD
Publication Date
2011-01-26

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to a method for converting ladder diagram language into structure text language, which comprises the following steps of: storing the ladder diagram language into a storage structure beneficial to edition and conversion, and introducing virtual nodes at intersection points between vertical lines and other ladder diagram symbols which refer to real nodes; merging the virtual nodes to form an AOV (Amplitude Versus Offset) diagram; and converting the AOV diagram into a structure text by classifying different types of nodes according to the node sequence of the AOV diagram intopological sorting. The method has generality and can be used for accurately and effectively convert any complex ladder diagram into a structure text. Visual ladder diagram programming is realized in places where only structure text programming can be used formerly, so that user use is convenient, the threshold of PLC (Programmable Logic Controller) programming is reduced, and the programming efficiency of PLC is increased.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a technology for realizing language conversion by using computer software, in particular to a method for converting ladder diagram language into structured text language. Background technique

[0002] The equipment manufacturing industry is the basic industry of the national economy and national defense construction, and its core technology is the numerical control system. Programmable logic controller (PLC, Programmable Logic Controller) is an important part of the numerical control system, it has logic operation, arithmetic operation, timing, counting, data processing, transmission, communication, self-diagnosis and other functions. The rapid development of computer technology and the promulgation of the IEC 61131-3 standard have promoted the further development of PLC. The five standard PLC programming languages ​​stipulated in the IEC 61131-3 standard include three graphical languages ​​and two textual languages, namely la...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More