Hi, Thank you.
I created this transfer function using CreateSystemModel
RTFV2= CreateSystemModel[TransferFunctionModel[{{{E^(-s/\[Tau])}}, \[Tau]}, s]]
but when I used it in system model it gives me an error that there is no scope for variable s.
Alternatively, I also tried to modify the in-built transfer function in modelica but was not sure how to use the exponent. What is the equation of y? Please let me know.
Lakshmi
