Set and reset Simulink

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Adam Keller 2015-7-26

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/231249-set-and-reset-simulink

评论： Adam Keller 2015-7-26

采纳的回答： Azzi Abdelmalek

在 MATLAB Online 中打开

Hello,

I am having trouble regarding value holding and reset with a simulink function. When a condition occurs I would like to have that value held until an external reset occurs.

Ex)

if x==7
  z = 6; % but z stays at 6 even after x does not equal 7
elseif reset ==1 %reset occurs
  z = 0;
end

I would like to trigger a value, hold, use an external signal to reset, and then allow to trigger again. Is there a block that can do this?

Many thanks.

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采纳的回答

Azzi Abdelmalek 2015-7-26

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/231249-set-and-reset-simulink#answer_187254

编辑：Azzi Abdelmalek 2015-7-26

在 MATLAB Online 中打开

Try this

function z=fcn(x,reset)
persitent xx
if isempty(xx)
  xx=0
end
if (x==7|xx==1) & reset==0
  z = 6;
  xx=1;
elseif reset==1
  z = 0;
  xx=0
end

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Azzi Abdelmalek 2015-7-26

No, it's in Matlab function block

Adam Keller 2015-7-26

That's what I meant, my apologies. Thank you Azzi!

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