When the compilation is complete, the following window appears. Ensure the box for Start Controller and Reset of saved values is checked. Click OK and the writing process will begin. In Monitoring mode the controller has to be connected to the PC. This mode has the same characteristics as in the simulation mode. Pictured in the lower right is the default screen for a Millenium. If no Display function is used, the Millenium displays the state of the inputs, the outputs, the time, and the diagnostic icons.