Thank you very very much!

Hi there,
as many askers before, I'm relatively new to programming in Modelica but already realy fascinated from the language power.
What I wasn't able to find yet, is how to get values of a variable from former timesteps.
So like I want to have a Heat-Loss calculation with a temperature-dependent value for the convection coefficient. As the fan that should generate the new convection coefficient needs 3 seconds to start up, I'd need the Temperature value from 3 seconds ago to calculate the current convection coefficient.

Does anyone knows how to do something like that?

Thank you very much for every kind of answer and help.

Daniel