How to set a parameter to a gain in simulink?

Hi everyone,

I am trying to make the attached model for my assignment in Simulink, but I keep getting the attached error when I am trying to set a 1/m gain. Anyone knows what is the problem?

Thanks for helping me.

Answer 1

[Stalin Samuel]

Make sure that you are getting right value for variable in the gain block. According to me if you know the value m then use the final result of (1/m) in the gain block

[Kyana Shayan]

I am not quite sure if that's the problem. I need to define m as a parameter for the gain, instead of just inserting the value. But I don't know how to do that.

[Stalin Samuel]

• In File menu go to "model properties-->Model properties"
• Model properties window will be opened
• In which under callbacks section click on InitFcn
• Then specify the values in Model initialization function editor box
• Then click on Apply-->OK