MATLAB Function Block - output cannot change

1 次查看（过去 30 天）

Lau Boon Chong 2019-12-22

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/497699-matlab-function-block-output-cannot-change

评论： Walter Roberson 2019-12-23

Hi All

I am trying to generate different output by using MATLAB Function Block. Below is my code, simulink model and output measure by scope.

function duty  = fcn()
duty = 0.5;
pause(1);
   
duty = 0.1;
pause(1);
    
end

However, the output of the function block always come from the last value. Anything wrong about my code?

3 个评论
显示 1更早的评论隐藏 1更早的评论

Lau Boon Chong 2019-12-23

Hi, thank for your reply. Actually I am trying to write an algorithm for my simulink model. I am thinking to use MATLAB block to implement it. The above example is just my experiment. My algorithm have to real time read different data from excel files and generate corresponding different outputs. Anyway suggestion from you how to implement it? Thank you.

Walter Roberson 2019-12-23

In Simulink, a MATLAB Function Block can emit outputs only when it returns. The outputs returned can potentially be vectors or arrays, and are not necessarily fixed size.

However, if you return N output values from a single Function Block invocation, how do you want those treated in time? Do you want to queue those N values in a bunch, and release one value per time-step? Do you want to process all N of the values in a group in the same time step? Do you want a series of blocks to suddenly run N times faster so that at the end of the time step for the Function Block, all N of the outputs have been processed one at a time?

请先登录，再进行评论。

请先登录，再回答此问题。