Get Information Operation

The Get Information operation retrieves low-level status and information from the function generator. You can query the instrument for the current sampling mode, the actual number of points the function generator acquires for each channel, the effective sample rate of the acquired waveform using the current configuration in samples per second, and the probe attenuation value the function generator automatically senses. You can also determine whether an acquisition is in progress or complete. You must specify an expression that contains a variable or property to which the step assigns the retrieved value.

The Get Information operation contains the following options:

• Get Actual Record Length —A variable or property to which the step assigns the actual number of points the oscilloscope acquires for each channel. After calling the Configure operation, call the Get Actual Record Length operation to determine the size of the waveforms the oscilloscope acquires with the Read or Fetch operations. The value is equal to or greater than the minimum number of points the Min Record Length setting specifies. The oscilloscope can use records of varying sizes depending on the acquisition type.
• Get Sample Rate —A variable or property to which the step assigns the effective sample rate of the acquired waveform using the current configuration in samples per second.
• Get Sample Mode —A variable or property to which the step assigns the current sampling mode for the oscilloscope.

  Supported Value	Description
  Equivalent Time (1)	Specifies that the oscilloscope uses equivalent-time sampling.
  Real Time (0)	Specifies that the oscilloscope uses real-time sampling.

• Get Acquisition Status —A variable or property to which the step assigns a value that indicates if an acquisition is in progress, is complete, or if the status is unknown. Typically, this operation is only called in a sequence of calls to other low-level driver operations, such as the Initiate operation. If the driver cannot query the instrument to determine the state of the instrument, the operation returns Status Unknown.
  Note This operation does not check the instrument status.

  Supported Value	Description
  Complete (1)	Specifies that the acquisition is complete.
  In Progress (0)	Specifies that the acquisition is in progress.
  Status Unknown (-1)	Specifies that the driver cannot query the instrument to determine the state of the instrument or that the status is unknown.

• Get Auto Probe Sense Value —A variable or property to which the step assigns the probe attenuation value the oscilloscope automatically senses. After you attach the probe to a channel, the probe uses the returned value as the scaling factor for attenuating the input. When the auto probe sense capability is not enabled, this function returns the current manual probe attenuation setting.
  • Channel —The channel name on which to perform the operation.
  • Value —The property or variable name to which the step assigns the returned value.