Linearization problem in Simulink

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As an experiment I am trying to linearize a simple model of square function in Simulink (Version 9.1 - R2018a) as shown in the following Figure:
I would like to make the linearization for a specific output (let’s say when output is equal to 1). So in the “Trim the model” editor I do the following:
When I press the “Start trimming” button, I get the following error:
Does anyone know, where is the problem?

Accepted Answer

Sebastian Castro
Sebastian Castro on 3 Oct 2018
Edited: Sebastian Castro on 3 Oct 2018
Do you also have the "Known" checkbox enabled in the "Inputs" tab? Because if so, you should uncheck either that one or the output, as they are directly related to each other.
- Sebastian

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