Scope Step

Use an IVI Scope step to acquire a voltage waveform from an analog input signal using oscilloscopes.

Configuring the Step

Use the Edit IVI Scope Step dialog box in the TestStand Sequence Editor and in a TestStand User Interface to configure the IVI Scope step.

Step Operations

The IVI Scope step type supports the following operations:

  • Configure —Configures the instrument to match the state the step specifies.
  • Show Soft Front Panel —Displays the soft front panel (SFP) for the instrument.
  • Hide Soft Front Panel —Hides the SFP for the instrument.
  • Read —Initiates and returns a measurement from the instrument.
  • Initiate —Initiates a measurement.
  • Fetch —Returns a measured value from a measurement the Initiate operation has started.
  • Abort —Cancels the wait for a trigger.
  • Auto Setup —Performs an automatic setup on the instrument.
  • Get Information —Retrieves low-level status and information from the instrument.

Step Properties

In addition to the common custom properties , the IVI Scope step type defines the following step properties:

  • Step.Result.Reading —The measurement values for the Read and Fetch operations. This property is a container array, and the size of the array equals the number of channels you specify for the Read or Fetch operation. The data type of each element of the array is NI_IviSinglePoint, NI_IviWave, or NI_IviWavePair.
  • Step.LogicalName —The logical name expression.
  • Step.InstrOperation —A value that specifies the operation you configured the step to perform.
  • Step.SettingsSource —The name of the property or variable where the step loads and stores the settings for the operation.
  • Step.Configuration —The settings for the Configure operation. The data type of this property is NI_IviScopeConfig.
  • Step.SoftFrontPanel —The settings for the Show Soft Front Panel operation. The data type of this property is NI_IviSoftFrontPanel.
  • Step.Readings —The settings for the Read and Fetch operations. The data type of this property is NI_IviScopeReadings. The Channels subproperty is an NI_IviScopeChannel array.
  • Step.GetInfo —The settings for the Get Information operation .

See Also

IVI Step Types