An Online Debugging Method of Function Block Diagram Based on Metadata Model

A technology of metadata model and function block diagram, which is applied in control/adjustment system, comprehensive factory control, program control, etc., can solve the problems that the real-time data in the intermediate state cannot be monitored and viewed, it is not conducive to in-depth online debugging, and the difficulty of online debugging is increased. Achieve the effect of omitting data index positioning links, ensuring information integrity, and improving security

Active Publication Date: 2020-01-10
NR ELECTRIC CO LTD +1
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Problems solved by technology

However, this mechanism greatly increases the difficulty of online debugging. On the one hand, it makes the process of monitoring the change trend of variable data in the controller complicated, and the corresponding real-time data must be obtained through repeated indexing and positioning; on the other hand, many intermediate states Real-time data cannot be monitored and viewed, which is not conducive to in-depth online debugging

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  • An Online Debugging Method of Function Block Diagram Based on Metadata Model
  • An Online Debugging Method of Function Block Diagram Based on Metadata Model
  • An Online Debugging Method of Function Block Diagram Based on Metadata Model

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Embodiment Construction

[0037] In order to make the above content, features and advantages of the present invention clearer and easier to understand, the detailed implementation steps of the present invention will be specifically described below in conjunction with the accompanying drawings.

[0038] According to the object-oriented method, the present invention encapsulates real-time variable data values ​​and all relevant necessary attributes in the industrial control system into a metadata model with a unified structure. From this, all algorithmic function blocks are further defined, and the variable values ​​or pointer references are replaced by the metadata model to realize the simplification of the configuration file into two core parts: the metadata set and the control instruction set. On this basis, the realization of the online debugging function omits the complicated link of data index positioning, and simplifies it to directly read and write the specified metadata set.

[0039] An online d...

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Abstract

The invention provides a metadata model based function block diagram online debugging method. The method includes a) packaging typical real time data point and related essential properties thereof inan industrial control process into a metadata model having a uniform structure; b) based on the metadata model, defining and realizing different kinds of function blocks; c) introducing primitive information elements of the different function blocks on the basis of control command sets and metadata sets; d) generating an algorithm configuration file based on the above configuration file structureby configuration software and implementing an online monitoring function in online debugging through downloading and running the algorithm configuration file in an industrial controller and reading the metadata sets in the algorithm configuration file periodically; e) implementing an online value setting function through modifying the metadata sets by the configuration software. By adopting the method provided by the invention, communication efficiency is improved, safety of real time control data is improved and great convenience is provided for online real time debugging of control strategies.

Description

technical field [0001] The invention belongs to the field of industrial automation control, in particular to the online debugging for function block diagrams in industrial process control systems. Background technique [0002] In the field of industrial process control, the control requirements are often different due to the different characteristics of the controlled object, which leads to the fact that its algorithm logic must have the function of programmable configuration. In the initial stage of project implementation, the project implementation personnel will carry out algorithm configuration according to the actual situation of the site, and carry out online debugging and operation. After the project is put into operation, the user needs to conduct online debugging of the configuration logic according to the actual situation on site, including online monitoring of the operation execution trend of the specified control logic unit, and modification of important paramete...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/418
CPCG05B19/4185G05B2219/31186G05B2219/31199Y02P90/02
Inventor 吴波牛洪海徐卫峰蔡丹臧峰
Owner NR ELECTRIC CO LTD
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