3.2.9. Debugging by Simulation You debug the programs and screens that you created by the SILS (Software In the Loop Simulation). 43 1 Select Run witn NA Simulator from the Simulation Menu of the Sysmac Studio. 2 Select the HMI that you created in 3.2.7. Creating the Programming Terminal Screen in the Simulator Option Dialog Box and click the OK Button. The Simulator of the Programmable Terminal is started.