Configures the number of records in a finite acquisition or configures the device to continuously acquire records. You can only configure the device to acquire a finite number of records if you set number of records is finite to TRUE.

Supported Devices: PXIe-5644/5645/5646, PXI-5661, PXIe-5663/5663E/5665/5667/5668, PXIe-5820/5830/5831/5832/5840/5841/5842/5860

Related Topics

I/Q Modulation


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Inputs/Outputs

  • civrn.png instrument handle —

    instrument handle identifies your instrument session. instrument handle is obtained from the niRFSA Initialize VI or the niRFSA Initialize With Options VI.

  • cbool.png number of records is finite —

    number of records is finite specifies whether to configure the device to acquire a finite number of records or to acquire records continuously. The default value is TRUE.

    TRUE The NI-RFSA device acquires a finite number of records.
    FALSE The NI-RFSA device acquires records continuously until you call the niRFSA Abort VI to abort the acquisition.
  • ci64.png number of records —

    number of records specifies the number of records to acquire if number of records is finite is set to TRUE. The default value is 1.

  • cerrcodeclst.png error in —

    error in describes error conditions that occur before this node runs. This input provides standard error in functionality.

  • iivrn.png instrument handle out —

    instrument handle out passes a reference to your instrument session to the next VI. instrument handle is obtained from the niRFSA Initialize VI or the niRFSA Initialize With Options VI and identifies a particular instrument session.

  • ierrcodeclst.png error out —

    error out contains error information. This output provides standard error out functionality.

    • Details

    If you configure the device to continuously acquire records, it acquires records until you call the niRFSA Abort VI 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 the niRFSA Fetch IQ VI to avoid overwriting data before you retrieve it.

    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.