Update variables by simulink conditional statement
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![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1459682/image.png)
U1 is yellow and u2 is blue
According to the if condition statement, when u1=100u2=0, the true interval is 10 to 50 seconds.
However, looking at the final result value(upper picture is the final one), it is converted to 1 from 10 seconds to the end.
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1459687/image.png)
That's my guess.
1. If conditional statement is wrong.
2. "Once" if statement is true at 10 seconds, the value is not updated and is "continued" 1.
I think number 2 is the most likely one
Is there a way to keep updating input values so that the result values are exported 1 value for 10-50 seconds only?
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Fangjun Jiang
2023년 8월 18일
Inside the If Action subsystem, double click the Outport block, there is an option for "Output when disabled", choose "reset" instead of "held".
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