Simulink: Need help using simulation time as a variable in Simulink Calculations

Hi,

I'm working on some Simulink code that does calculations for elastances in the heart and I want to set the simulation time and step size to be controlled by variables in my MATLAB script. I also was trying to figure out how to use the simulation time as a variable to input into my calculations. So for example, if the current simulation time is 2.05 seconds I want to use that single value in the area circled in blue below. I'd greatly appreaciate the help with this. Please let me know if you need more explaination.

Thanks!

[Julian Thrash]

I've attached an image depicting my code and the area I need help with in the Time Image.PNG.

Answer 1

[Fangjun Jiang]

Use the Clock block from Simulink Sources.

[Julian Thrash]

I need to use a specific sampling rate. Would it be better to use the digital clock for that input in my Simulink code?

[Fangjun Jiang]

Yes.

[Julian Thrash]

I just tried it and it worked great. Thanks for the help!