Things to Know When Using Viewers

About Viewers

• The Scope Viewer is not the same as the Scope block. For an explanation of the differences, see How Scope Blocks and Signal Viewers Differ.

• The Scope Viewer does not show the signal label on the axis.

• The Scope Viewer does not work with the Report Generator.

• The Scope Viewer does not display the simulation minor time step values.

• Not all of the Scope Viewer features are supported when you simulate your model in Rapid Accelerator mode. For more information, see Using Scopes and Viewers with Rapid Accelerator Mode.

• The Help button for the Scope Viewer is located in the Scope Viewer's Parameters dialog box. For more information, see Scope Viewer Parameters Dialog Box.

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How the Viewer Determines Trace Color Coding and Line Styles

The Scope Viewer displays each signal as a separate, color-coded trace, in the following order:

1. Blue

2. Red

3. Magenta

4. Cyan

5. Yellow

6. Green

The viewer cycles through the colors if the axis is displaying more than six signals.

If a signal contains multiple elements (such as a vector or matrix), the viewer distinguishes the elements with different line styles. If a signal has more than four elements, the viewer cycles through the line styles. The line styles retain the color of the signal.

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How Scope Viewer Parameter Settings Can Affect Performance

In some cases, when a Scope Viewer needs to display a large number of data points, the simulation slows. When this happens, you can improve simulation performance by adjusting the settings of some of the viewer parameters. Try one or a combination of the following until you are satisfied with the simulation performance.

• Turn off scroll mode. See Scroll.

• Reduce the time range. See Time Range.

• Use decimation to reduce the number of data points. See Decimation.

• Increase the refresh period to decrease the refresh rate. See Refresh Period.

• Limit the number of data points that the viewer saves to the workspace. See Limit data points to last.

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Displaying a Scope Viewer

Changing Viewer Characteristics

Related Products & Applications

• Simulink
• Control Design
• Signal Processing & Communications
• Model-Based Design
• Physical Modeling
• Verification & Validation

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