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A Method for Incremental Update of Function Block Parameters

A functional block, incremental technology, applied in electrical digital data processing, instrumentation, computing, etc., can solve the problems of unprotected real-time value of controller hardware, unable to guarantee program and function control, and increasing total data volume, etc. The effect of maintaining continuity, reducing maintenance costs, and enhancing operability

Active Publication Date: 2021-08-03
ZHEJIANG SUPCON TECH
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Problems solved by technology

[0008] However, for the problem of increasing the total data volume of parameters, the current solution is to reassign the hardware address of the function block parameters, which will cause all the parameters of the function block to be initialized, and the real-time running in the controller hardware is worth noting protection, there is no guarantee that it will cause disturbance to the already stable running program and function control

Method used

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  • A Method for Incremental Update of Function Block Parameters
  • A Method for Incremental Update of Function Block Parameters
  • A Method for Incremental Update of Function Block Parameters

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Embodiment Construction

[0032] In order to facilitate the understanding of the present invention, some technical terms mentioned in the present invention are explained first.

[0033] Function block, a collection of functions, refers to the function: a logical combination block that is relatively independent from the calling program and realizes some complete and specific functions, including parameters and logic. The parameters provide data for the execution of the logic.

[0034] Program: A logic program that calls a function block or a combination of function blocks to achieve a specific required function. The program provides initialization parameters for the execution of the function block.

[0035] In the prior art, after the program references the function block, a fixed controller hardware address is assigned as the parameter data area according to the total length of the parameter data of the function block, and an initial value is prepared for the parameter. When the program is downloaded, ...

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Abstract

The invention discloses a method for incremental updating of function block parameters, comprising: S1, program references the function block and configures memory and redundant memory for the function block parameters; S2, compares and checks whether the function block parameter data has newly added parameters, if When the parameter data of the function block increases, and the newly added parameters of the function block exceed the redundant memory range, an index of the newly added parameter is established; S3, based on the index, downloads the initial value of the newly added parameter to minimize the impact of the increase of the function block parameter on real-time data disturbances for safe and fast configuration and data download.

Description

technical field [0001] The invention relates to parameter management of function blocks of an industrial control system, in particular to a method for incremental update of function block parameters. Background technique [0002] In the industrial control system, function blocks can be roughly divided into two types: system function blocks and user function blocks. System function blocks are usually solidified in the controller hardware, so the parameters and logic are fixed and cannot be modified; user function blocks are user-defined parameters and logic. [0003] Programs and function blocks are the core of the industrial control system, although in the production process that has been put into production, the adjustment of function block parameters will be avoided as much as possible. However, when parameter adjustment is unavoidable, the user's appeal is to maintain data continuity as much as possible, and try not to cause data initialization or jumps to cause producti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F8/658
CPCG06F8/658
Inventor 裘坤徐伟强刘先霖张理成姚罕琦
Owner ZHEJIANG SUPCON TECH
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