Table Of Contents

IviSpecAn Configure Acquisition (G Dataflow)

Version:
    Last Modified: October 24, 2017

    Configures the acquisition properties of the spectrum analyzer.

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    vertical scale (Linear)

    Pass the vertical scale of the measurement hardware that you want the spectrum analyzer to use (use of log amplifiers or linear amplifiers). The driver sets the IviSpecAn>>Basic Operation>>Vertical Scale property to this value. Defined Values: IVISPECAN_VAL_VERTICAL_SCALE_LINEAR - Linear IVISPECAN_VAL_VERTICAL_SCALE_LOGARITHMIC - Logarithmic Default Value: IVISPECAN_VAL_VERTICAL_SCALE_LOGARITHMIC

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    detector type auto (False)

    Enables the auto detector. The driver uses this value to set the IviSpecAn>>Basic Operation>>Detector Type_AUTO property. Note: When the IviSpecAn>>Basic Operation>>Detector Type_AUTO property is set to True,the relationship between the IviSpecAn>>Basic Operation>>Trace Type property and the IVISPECAN__ATTR_DETECTOR_TYP attributeis is not defined. Valid Values: TRUE - Detector type is automatically selected. FALSE - Detector type is manually selected. Default Value: FALSE

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    instrument handle

    The instrument handle that you obtain from the IviSpecAn Initialize Node or IviSpecAn Initialize With Options Node. The handle identifies a particular instrument session.

    Default: None

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    error in

    Error conditions that occur before this node runs.

    The node responds to this input according to standard error behavior.

    Standard Error Behavior

    Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.

    error in does not contain an error error in contains an error
    If no error occurred before the node runs, the node begins execution normally.

    If no error occurs while the node runs, it returns no error. If an error does occur while the node runs, it returns that error information as error out.

    If an error occurred before the node runs, the node does not execute. Instead, it returns the error in value as error out.

    Default: No error

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    sweep mode continuous (False)

    Turns on/off continuous sweeping. The driver uses this value to set the IviSpecAn>>Basic Operation>>Sweep Mode Continuous property. Valid Values: TRUE - Sweep mode is continuous. FALSE - Sweep mode is not continuous. Default Value: FALSE

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    number of sweeps (1)

    The number of sweeps to take. The driver sets the IviSpecAn>>Basic Operation>>Number of Sweeps property to this value. Default Value: 1

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    detector type (Auto Peak)

    Specifies the method of capturing and processing signal data. The driver uses this value to set the IviSpecAn>>Basic Operation>>Detector Type property. Valid Values: - IVISPECAN_VAL_DETECTOR_TYPE_AUTO_PEAK - Allows the detector to capture better readings by using both positive and negative peak values when noise is present. - IVISPECAN_VAL_DETECTOR_TYPE_AVERAGE - Average value of samples taken within the bin for a dedicated point on the display. - IVISPECAN_VAL_DETECTOR_TYPE_MAX_PEAK - Obtains the maximum video signal between the last display point and the present display point. - IVISPECAN_VAL_DETECTOR_TYPE_MIN_PEAK - Obtains the minimum video signal between the last display point and the present display point. - IVISPECAN_VAL_DETECTOR_TYPE_SAMPLE - Pick one point within a bin. - IVISPECAN_VAL_DETECTOR_TYPE_RMS - RMS value of samples taken within the bin for a dedicated point on the display. Default Values: IVISPECAN_VAL_DETECTOR_TYPE_AVERAGE

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    instrument handle out

    The instrument handle that you obtain from the IviSpecAn Initialize Node or IviSpecAn Initialize With Options Node. The handle identifies a particular instrument session.

    Default: None

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    error out

    Error information.

    The node produces this output according to standard error behavior.

    Standard Error Behavior

    Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.

    error in does not contain an error error in contains an error
    If no error occurred before the node runs, the node begins execution normally.

    If no error occurs while the node runs, it returns no error. If an error does occur while the node runs, it returns that error information as error out.

    If an error occurred before the node runs, the node does not execute. Instead, it returns the error in value as error out.

    Where This Node Can Run:

    Desktop OS: Windows

    FPGA: Not supported

    Web Server: Not supported in VIs that run in a web application


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