Scope Properties

Graphic instrument to display waveforms

Use the Scope instrument to display time-varying real-valued data, such as electronic waveforms.

The block provides controls that you can access at run time.

ActionIconPurpose

Start Acquisition

Enables the scope to trigger.

Stop Acquisition

Prevents the scope from triggering.

Force trigger

Triggers an immediate acquisition.

AutoScale

Rescales the scope axes to display the full range of the values.

Axis Scroll

Enables dragging the visible portion of the axes left, right, up, and down.

Axis Zoom

Enables stretching the axes left, right, up, and down.

Zoom Box

Enables selecting a box into which the display zooms.

Zoom In

Zooms the display inward from the current center.

Zoom Out

Zooms the display outward from the current center.

Data-Cursor

Creates a cursor that shows value and time data.

Show Legend

Displays the signal names and the colors of the signal traces in the top, right corner of the scope display.

Show Label

Displays the scope label in the top center of the scope display.

Show Y-Axis

Displays the Y-axis to the left of the scope display.

Show X-Axis

Displays the X-axis on the bottom of the scope display.

To access a dialog box containing key instrument or layout element properties, select the item. In the top, right corner, click the Tasks button .

To access the complete Properties list for an instrument or layout element, in the instrument panel, select the item. In the Properties list, to access a dialog box for a particular property group, click the group. To the right of the group, click the continuation button .

These properties represent a selection from the available properties. For more properties, see Graphical Properties.

Instrument

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The number of samples determines how much data the scope displays at any one time. The larger this value, the longer the scope takes to refresh.

This property determines the horizontal (time axis) position of the trigger event in the display.

When the trigger signal crosses this value in the direction that you specified in TriggerSlope, the trigger becomes active.

Dependency

This property takes effect only if TriggerSource is SIGNAL.

Specify how often the display is updated:

  • SINGLESHOT — Triggers once and stops the scope. To recapture, manually restart the scope.

  • REPEATED — Triggers every time that the trigger condition is satisfied. To stop the display, manually stop the scope.

Specify the scope from which this instance of the scope instrument triggers.

Dependency

This property takes effect only if TriggerSource is SCOPE.

Specify the signal from which this instance of the scope instrument triggers.

Dependency

This property takes effect only if TriggerSource is SIGNAL.

Specify the crossing direction at which the trigger becomes active:

  • EITHER — Triggers when the signal rises and when it falls.

  • RISING — Triggers only when the signal rises.

  • FALLING — Triggers only when the signal falls.

Specify the crossing value with property TriggerLevel.

Dependency

This property takes effect only if TriggerSource is SIGNAL.

Specify the trigger condition:

  • FREERUN — Displays data continuously without waiting for a trigger.

  • MANUAL — Triggers when you click the Force trigger button .

  • SIGNAL — Triggers when a specific signal crosses a specific value in a rising or falling direction.

  • SCOPE — Triggers when a specified scope is triggered.

Dependency

This parameter has these dependencies:

  • When TriggerSource is MANUAL, the Force trigger button  becomes available.

  • When TriggerSource is SIGNAL, properties TriggerSignal, TriggerSlope, and TriggerLevel take effect.

  • When TriggerSource is SCOPE, property TriggerScope takes effect.

Specify Max and Min limits to the Y-axis of the display.

Bindings

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Enter signal names by using the Signal Collection Editor, which contains a Members list and a Properties list.

Example: SetPoint, ControlValue, TankLevel

Bind an instrument instance to a particular target computer. You can bind different instruments in the same instrument panel to different target computers.

Design

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When True, prevents accidental changes in size or location of the instrument instance.

Introduced in R2017a