Embedded PLC (Programmable Logic Controller) engine implementation method and engine

An implementation method and embedded technology, applied in the direction of program control, control/regulation system in instruments, sequence/logic controllers, etc., can solve the problems of low utilization rate of PLC engine resources and waste of resources, etc.

Active Publication Date: 2017-11-03
HANGZHOU DIANZI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case of processing tasks with different real-time time requirements, the scan cycle of all threads needs to meet the highest real-time time requirement tasks, resulting in waste of resources caused by high-configuration threads processing tasks with low real-time time requirements
[0004] The resource utilization of the existing PLC engine is not high

Method used

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  • Embedded PLC (Programmable Logic Controller) engine implementation method and engine
  • Embedded PLC (Programmable Logic Controller) engine implementation method and engine
  • Embedded PLC (Programmable Logic Controller) engine implementation method and engine

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Embodiment Construction

[0040] 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 creative efforts fall within the protection scope of the present invention.

[0041] figure 1 It is a schematic flowchart of an implementation method of an embedded PLC engine provided by the present invention. Such as figure 1 Examples shown include:

[0042] S110. Obtain data to be processed, and obtain a preset response time according to the data to be processed.

[0043] Obtaining the data to be processed includes b...

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Abstract

The present invention provides an embedded PLC (Programmable Logic Controller) engine implementation method and an engine. The method includes the following steps that: data to be processed are acquired, and preset response time according to the data to be processed is obtained; the scanning periods of threads in a PLC engine are obtained, wherein the PLC engine includes M threads, wherein M is an integer greater than or equal to 2, and the scanning periods of at least two threads are different from each other; a target thread is determined according to the scanning periods and the preset response time; and the data to be processed are processed with the target thread. With the method of the invention adopted, the optimized allocation of the threads can be realized, resource waste caused by a condition that a high-consumption thread processes a task having a low real-time requirement can be decreased, and the utilization rate of the threads can be improved.

Description

technical field [0001] The invention relates to industrial control technology, in particular to an embedded PLC engine realization method and engine. Background technique [0002] The dedicated controller is a kind of controller tailored for enterprises and equipment. It has a single function and a simplified structure, and it is customized for specific machines. In recent years, with the increasingly intensified competition in the field of industrial control, even though Programmable Logic Controller (PLC) has the advantages of high reliability and strong anti-interference ability, more and more enterprises have begun to be unable to bear the burden of PLC. High cost pressure, and gradually began to use dedicated controller instead. However, using a dedicated controller also risks reducing reliability and compatibility. [0003] In the prior art, an embedded PLC is formed through platform-based development and transformation of the existing special-purpose controller, so ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/05
CPCG05B19/054G05B2219/1103
Inventor 赵建勇邬惠峰严义
Owner HANGZHOU DIANZI UNIV
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