The Method of Component Timing Automatic Arrangement and Logical Linking Method of Control Strategy Configuration

Abstract

The invention provides an element sequence automatic arrangement method of a control strategy configuration. The method is achieved based on a following topological sorting rule: firstly, a priority level of an input side element is superior to a priority level of an output side element; secondly, two elements which are inputted by each other are compared with the number of elements without sorting of input sides of two elements, and elements with less number are firstly sorted; thirdly, input elements or transitional elements just conduct once sorting in the same return circuit, the input elements or the transitional elements are arranged on the input side, and the input elements and the transitional elements have the same subscript numbers and properties; fourthly, the transitional elements with the same subscript numbers and properties repeatedly occur in the same return circuit, and if some transitional elements are arranged on the output side, the transitional elements which are arranged on the output side are taken out to firstly conduct sorting. The invention further provides a logic link method of the control strategy configuration. The logic link method of the control strategy configuration comprises a return circuit link and a system link. The element sequence automatic arrangement method of the control strategy configuration and the logic link method thereof achieve automatic arrangement of element sequences, not only improve efficiency of industrial control configuration, but also solve unscientific sorting problem of a round-robin algorithm, and strongly guarantee stability and safety of an industrial control process.

Description

【Technical field】 [0001] The invention relates to the field of industrial automation control, in particular to an automatic sequence arrangement of control strategy configuration elements and a logic link method thereof. 【Background technique】 [0002] Control strategy configuration based on graphical components is the most common development method for distributed control systems. People use different combinations of graphic components to visually represent the basic principles of control strategies and control algorithms. Such combinations involve complex data structures between control elements. In the data structure, the sorting of data is a very important part, and it is also one of the more frequently used data operations in engineering practice. The efficiency and effectiveness of component sorting directly affects the performance of industrial control software. At present, most of the calculation and sorting methods of components use manual sorting, such as bubble ...

AI Technical Summary

Problems solved by technology

In the above sorting algorithm, the common problems are: (1) the workload is cumbersome, and the operating efficiency is low; (2) it is easy to make mistakes, and the results of calculation control often do not correspond to the actual imagined results; (3) the algorithm processing cycle flow is not Science, easy to fall into an endless loop, etc.

These phenomena undoubtedly increase the risk of control system engineers developing control strategies, especially for large and complex industrial control systems, if the results of computational control cannot correspond to the actual imagined sequence, the execution of the control algorithm may cause very dangerous consequences

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