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Industrial human-machine interface variable accessing method and system

An industrial human-machine interface and variable access technology, which is applied in the field of industrial human-machine interface access control, can solve the problems of reducing communication efficiency and achieve the effects of improving communication efficiency, saving bus resources, and improving access efficiency

Inactive Publication Date: 2009-02-11
深圳市合信自动化技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Because the load of network access is determined by the number of variables configured and the access speed, when there are more variables and faster access frequency, the HMI will occupy more network resources and consume valuable industrial fieldbus resources. , thus reducing the efficiency of communication

Method used

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  • Industrial human-machine interface variable accessing method and system
  • Industrial human-machine interface variable accessing method and system
  • Industrial human-machine interface variable accessing method and system

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Embodiment Construction

[0032] In order to facilitate the understanding of the technical solutions implemented by the present invention, firstly, the screen objects involved in the following embodiments are briefly described.

[0033] Screen objects are generally display controls implemented by computer graphic control technology. The screen objects mentioned in the industrial man-machine interface of the embodiment of the present invention are usually associated with external device control parameters and are used to convey the working status of the external industrial device. For example, the "indicator lamp" screen object uses dynamic profiling indicator lamps to indicate the switch status of field devices; the "switch" screen object uses profiling switches to simulate industrial equipment switches, allowing operators to switch operations; "History "Screen object, which provides historical record information of one or more industrial variables, which is convenient for equipment maintenance personnel t...

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Abstract

The invention discloses an industrial man-machine interface variable access method. The method comprises the following steps: selecting a current monitoring picture and displaying the current monitoring picture; extracting external variable access frequency parameters relative to the picture objects respectively in the current monitoring picture, visiting external variable regions corresponding to the picture objects respectively according to the external variable access frequency parameters and extracting relevant external variable values; storing the external variable values in a cache memory; and extracting an external variable value of the cache memory and updating the picture display of the monitoring picture in real time according to the external variable value. Accordingly, the invention also discloses an industrial man-machine interface variable access system. By adopting the technical proposals, the network resource is saved and the communication efficiency is increased.

Description

Technical field [0001] The invention relates to the field of industrial man-machine interface access control, in particular to a method and system for accessing industrial man-machine interface variables. Background technique [0002] Industrial Human-Machine Interface (HMI) is a medium for transferring and exchanging information between users and machines and equipment. Users can configure different screens according to the needs of control, and configure text, Screen objects such as buttons, graphics, numbers, and charts are used to process or monitor the work of machinery and equipment. [0003] Industrial man-machine equipment is an important part of modern equipment. The use of industrial man-machine interface can clearly indicate and inform the operator of the working status of various industrial controllers or industrial equipment monitored by the industrial man-machine equipment. The humanization of industrial man-machine equipment The design is conducive to improving the...

Claims

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Application Information

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IPC IPC(8): G05B19/02G05B15/02
Inventor 戎思吉冯润全
Owner 深圳市合信自动化技术有限公司
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