In Simulink, how can we assign the simulation time displayed on the top, as a variable ?

I am running a simulation model in Simulink. How can we assign the simulation time displayed on the top, as a variable ? How can we run the simulation from 0 to 5 sec, with time interval after every 0.05 sec (thus creating a running window after every 0.05 sec time step, while simulating the model and feeding the data to the matlab function block to get the desired output), by assigning the simulation time as a variable ?

[Paul]

Did you post this exact same question under a different user name?