How do I hold a value in Simulink for the rest of the simulation time?

Question

Carlos 2025-9-29，23:44

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https://ww2.mathworks.cn/matlabcentral/answers/2180279-how-do-i-hold-a-value-in-simulink-for-the-rest-of-the-simulation-time

评论： Mathieu NOE 2025-10-1，7:41

I am fairly new working with Simulink and probably I don’t know enough about the flows of information in time and how to control them.

I already read answers related to “Hold a value indefinitely once a condition becomes true”. I suppose that part of the answer could be there, but the problem is not related to a true condition keeping in time but a value that I want to keep until the end of the simulation.

I try first with a simplified system consisting of a discrete sine wave and a certain time (60 sec), I need to read the value in the vicinity of 60 sec. and propagate it until the end of the simulation time.

I tried a couple of methods, but always having the same result. I actually have the time and the value of the sine wave at which I have to propagate until the end of the simulation, but the value I have after that point is always cero.