Table Of Contents

Configure Number of Records (G Dataflow)

Version:
    Last Modified: December 19, 2018

    Configures the number of records in a finite acquisition or configures the device to continuously acquire records.

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    Note

    You can only configure the device to acquire a finite number of records if you set number of records is finite input to True.

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    session in

    Instrument session obtained from Initialize With Options .

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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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    number of records is finite

    Boolean value that specifies whether to configure the device to acquire a finite number of records or to acquire records continuously.

    True The NI-RFSA device acquires a finite number of records.
    False The NI-RFSA device acquires records continuously until you call Abort to abort the acquisition.

    Default: True

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    number of records

    Number of records to acquire if the number of records is finite input is set to True.

    Default: 1

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    session out

    Reference to your instrument session passed to the next node.

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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.

    Continuously Acquire Records

    If you configure the device to continuously acquire records, it acquires records until you call Abort to abort the acquisition. The device stores records in onboard memory in a circular fashion. After the device fills the memory, it starts overwriting previously acquired records from the beginning of the memory buffer. Fetch the records as they are being acquired using Fetch IQ to avoid overwriting data before you retrieve it.

    Acquire More Records than Device Memory Allows

    To acquire more records than will fit into the device memory without continuously acquiring records, set number of records is finite to True and the Allow More Records Than Memory property to True.

    Search within the programming environment to access the following installed examples:
    • RFSA Getting Started Multi Record IQ
    • RFSA List Mode Frequency and Power Sweep (Power Triggered)
    • RFSA List Mode Frequency and Power Sweep (Timer Triggered)

    Where This Node Can Run:

    Desktop OS: Windows

    FPGA: Not supported

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

    Hardware Support:

    This node supports the following hardware:

    • PXIe-5644/5645/5646
    • PXIe-5663E/5665/5667/5668
    • PXIe-5820/5840


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