Simulink scope not working correctly

Hello,

I am trying to use this circuit in MATLAB Simulink and instead of a straight line on the scope I get a circle. Can someone please tell me the problem here??

This is all I see in the below circuit

[Walter Roberson]

I suspect that you have a single data point and that the circle is the enabled marker highlighting the data.

You do not happen to show the source blocks for the GOTO1 that you have so we cannot say why you are only getting a single point.

[Sara Boznik]

Maybe is not problem with the scope but with results you get it? That you get only one data point. You can write us about the your work in Simulink.

Answer 1

[Abdolkarim Mohammadi]

I created your model and I expected a constant line, but I also got a single marker. Do the following as a workaround:

In Constant block: change the sample time of the constant to -1.

In Scope block: go to View > Style. Change Plot type to Line and Marker to none.