2.5 The Scope Block

The Scope block displays waveforms as functions of simulation time. The Scope block can have multiple y-axes with a common time range. We can adjust the amount of time and the range of input values displayed, we can move and resize the Scope window, and we can modify the Scope's parameter values during the simulation. The Scope block does not automatically display the waveforms, but it does write data to connected Scopes. The Scope's input signal or signals will be displayed if after a simulation is terminated, we double-click on the Scope block and the signal(s) will then be displayed. The Scope assigns colors to each signal element in this order: yellow, magenta, cyan, red, green, and dark blue. When more than six signals are displayed, the Scope cycles through the colors in the order listed. We will describe the Scope block in detail in Subsection 14.2.1, Chapter 14.