Method for cooperative work of multiple programmable controllers based on data synchronization

A programmable controller and data synchronization technology, which is applied in the direction of electrical digital data processing, instruments, code compilation, etc., can solve the requirements that programmable controllers cannot support complex control programs, hardware bottlenecks, and programmable controllers cannot support complex control programs And other issues

Pending Publication Date: 2022-06-24
HANGZHOU DIANZI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the continuous development of the industrial control field, the degree of automation is getting higher and higher, and the control system in the industrial field is becoming more and more complex. A single programmable controller often cannot support the needs of complex control programs.
[0003] In order to solve the problem that the programmable controller cannot support the requirements of complex control programs, most of the methods are used to improve or improve the I / O points, storage capacity, scanning speed, function and quantity of instructions, types and quantities of internal components, and special functions of the programmable controller. Functional units and scalability to improve the performance of a single programmable controller
But this method is easy to reach the bottleneck of the hardware

Method used

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  • Method for cooperative work of multiple programmable controllers based on data synchronization
  • Method for cooperative work of multiple programmable controllers based on data synchronization
  • Method for cooperative work of multiple programmable controllers based on data synchronization

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Embodiment Construction

[0034] It should be noted that the embodiments of the present invention and the features of the embodiments may be combined with each other under the condition of no conflict.

[0035] The technical solutions provided by the present invention will be further described below with reference to the accompanying drawings, and the implementation manners, technical means, and operation procedures in the embodiments of the present invention will be described completely and clearly. It should be pointed out that the described embodiments are not all embodiments, but only a part of the embodiments of the present invention.

[0036] The invention provides a method for cooperating with multiple programmable controllers based on data synchronization, such as figure 1 shown, including the following steps:

[0037] S1, variable definition, export variable declaration and programming

[0038] S1-1. The user defines the variables under the device in the variable editing area under the progr...

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Abstract

The invention discloses a method for cooperative work of multiple programmable controllers based on data synchronization. The method comprises the following steps: S1, defining variables, exporting variable declarations and programming; s2, analyzing a program file XML (Extensible Markup Language), distributing a variable address of each programmable controller variable, and processing each pair of export variable relations; and S3, program compilation, the synchronization function block provided by the invention is essentially a performance function for packaging synchronization codes, but is transparent for a user, the user does not need to worry about the realization problem of the synchronization function block, and the realization of the codes can be automatically generated according to the difference of exported variables and the difference of equipment information of the programmable controller; according to the invention, one-time synchronization is carried out on the derived variables of the same programmable controller by using a communication protocol, so that the problem that the waiting time is too long due to too many received and transmitted frames caused by synchronization of only a single variable each time is well solved.

Description

technical field [0001] The implementation of the invention relates to the field of industrial control, and relates to a method for cooperating with multiple programmable controllers based on data synchronization. Background technique [0002] With the continuous development of the industrial control field, the degree of automation is getting higher and higher, the control system in the industrial field is becoming more and more complex, and a single programmable controller can often no longer support the needs of complex control programs. [0003] In order to solve the problem that the programmable controller cannot support the complex control program requirements, most of them adopt to improve or increase the number of I / O points, storage capacity, scan speed, function and number of instructions, type and number of internal components, special Functional units and scalable ways to improve the performance of a single programmable controller. But this method is easy to reach...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F8/41G06F11/36H04L67/1095H04L69/06H04L69/16
CPCG06F8/41G06F11/3664H04L67/1095H04L69/162H04L69/06
Inventor 邬惠峰张孝检孙丹枫赵建勇
Owner HANGZHOU DIANZI UNIV
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