Hello, I have two questions: I use a If Block to "cut" the signal and not perform some operations (not depicted below). Is it the right approach to use a "If Block" for interupt the signal and don't allow to perform some tasks by the model? However I notice that after the "If Block" the signal became discrete (see the plot below, where you can see a stairstep plot), even if before the "If Block" the signal was continous (see the plot below, where you can see a continous plot). How to convert again the discrete signal into a continous?

If Action Block that create a stairstep signal in simulink

1 Jun 2020

1 Answer

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Hello,

I have two questions:

I use a If Block to "cut" the signal and not perform some operations (not depicted below). Is it the right approach to use a "If Block" for interupt the signal and don't allow to perform some tasks by the model?
However I notice that after the "If Block" the signal became discrete (see the plot below, where you can see a stairstep plot), even if before the "If Block" the signal was continous (see the plot below, where you can see a continous plot). How to convert again the discrete signal into a continous?

Fangjun Jiang on 1 Jun 2020

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The "sample time" of the Constant block might have been set as "1" second.