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Preprocessing method, control method and system of programmable logic controller

A technology of programming logic and control method, applied in the field of programming, can solve problems such as increasing PLC storage memory, and achieve the effect of reducing repeated statements and reducing storage memory

Inactive Publication Date: 2020-02-07
德运创鑫(北京)科技有限公司
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  • Summary
  • Abstract
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  • Claims
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Problems solved by technology

[0003] When the same equipment needs to produce multiple models of products, because each model is different, the PLC code corresponding to each model is also different, so it is necessary to write the corresponding execution code for each model, but each execution code contains some of the same statements, which will cause a large number of repetitive statements in the written program, increasing the storage memory of the PLC

Method used

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  • Preprocessing method, control method and system of programmable logic controller
  • Preprocessing method, control method and system of programmable logic controller

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Embodiment Construction

[0042] 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.

[0043] Such as figure 1 As shown, an embodiment of the present invention provides a preprocessing method for a programmable logic controller, which is applied to a programmable logic controller, including:

[0044] Step 1-1, obtaining the execution code of the actuator;

[0045] Step 1-2, encapsulating the execution code of one or more exec...

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Abstract

The invention relates to a preprocessing method, a control method and a system of a programmable logic controller. The preprocessing method comprises the following steps: acquiring an execution code of an execution element; packaging execution codes of one or more execution elements into an execution unit; determining the number of each execution unit; and determining a calling rule of the execution unit. According to the technical scheme provided by the invention, execution codes of one or more execution elements in the programmable logic controller are packaged into an independent executionunit; when the same statement exists in different flows, the same execution unit can be repeatedly called, so repeated statements in programming are reduced, and the storage memory of the programmablelogic controller is reduced.

Description

technical field [0001] The invention belongs to the field of programming, and in particular relates to a preprocessing method, a control method and a system of a programmable logic controller. Background technique [0002] At present, the programming of the programmable logic controller (Programmable Logic Controller, PLC) is completed before the operation of the control equipment or before the installation of the equipment. The programming of the PLC is composed of multiple codes, and each code contains multiple statements. Statements are stored in memory. [0003] When the same equipment needs to produce multiple models of products, because each model is different, the PLC code corresponding to each model is also different, so it is necessary to write the corresponding execution code for each model, but each execution code contains some of the same In this way, there are a large number of repeated statements in the written program, which increases the storage memory of th...

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 朱哲明张津岩张凤港杨娜
Owner 德运创鑫(北京)科技有限公司
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