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Programming and control method of sequence control diagram of programmable controller

A technology of programming controller and sequence control, which is applied in the direction of program control and electrical program control in sequence/logic controllers, and can solve problems such as powerlessness due to diversity requirements.

Inactive Publication Date: 2010-10-27
傲拓科技股份有限公司
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AI Technical Summary

Problems solved by technology

[0013] (3) The user program is executed in a cyclic scanning manner. The length of the scanning cycle directly affects the performance indicators of the PLC, and the diversity requirements for program execution (such as the execution of a certain program driven by events, parallel processing of programs, etc.) powerless

Method used

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  • Programming and control method of sequence control diagram of programmable controller
  • Programming and control method of sequence control diagram of programmable controller
  • Programming and control method of sequence control diagram of programmable controller

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0025] In the programming step of the present invention, an upper computer (computer) generates sequence control instruction codes, and a programmable logic controller (PLC) executes sequence control instruction codes as a lower computer. The upper computer downloads the compiled program code to the PLC, and at the same time, the upper computer is also monitoring the code execution status of the PLC.

[0026] The steps of the present invention are as follows:

[0027] 1. Edit sequence control chart (test.scc): In the programming interface, basic function boxes such as start box, end box, execution box, condition box, time limit condition box, connector, and comment are provided. Generating a sequential control chart is a complex combination of the above functional boxes. The connection relationship between each functional box in the sequence ...

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Abstract

The invention relates to a programming and control method of a sequence control diagram of a programmable controller, which comprises the following steps: a) editing and generating a sequence control command code of the programmable controller in an upper computer: 1) editing the sequence control diagram; 2) generating sequence control text; 3) generating the sequence control command code; and b) downloading the sequence control command code into the programmable controller: 4) downloading the sequence control command code; and 5) implementing the sequence control command code. The method can upgrade the legibility and the flexibility of a user program and the implementation efficiency of the programmable controller.

Description

technical field [0001] The invention relates to a sequential control diagram programming and control method of a programmable logic controller (PLC). Background technique [0002] IEC (International Electrotechnical Commission, International Electrotechnical Commission) 61131-3 is the first international standard that provides a standardized programming language for the software design of industrial automation control systems. This standard successfully combines the concept of modern software and the mechanism of modern software engineering with the traditional PLC programming language, and also standardizes the programming languages, software design concepts and software models of various industrial control systems, adapting to today's world The development direction of software and industrial control systems is a very advanced design technology. [0003] The IEC61131-3 standard specifies two types of programming languages: textual programming languages ​​and graphical pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/05
Inventor 陈思宁王善永
Owner 傲拓科技股份有限公司
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