Table Of Contents

Configure Waveform Acquisition (G Dataflow)

Version:
    Last Modified: March 3, 2017

    Configures the DMM for waveform acquisitions.

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    session in

    Instrument identifier from previous NI-DMM nodes.

    Default: None

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    function

    Measurement function used in a waveform acquisition.

    NI-DMM sets the Function property to this value.

    Name Description
    1003 Waveform Voltage
    1004 Waveform Current

    Default: Waveform Voltage (1003)

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    rate

    Rate of the acquisition in samples per second.

    NI-DMM sets the Waveform Rate property to this value. The valid rate is calculated by dividing 1,800,000 by an integer divisor, and the rate falls between 10 and 1,800,000 samples per second. The waveform rate is coerced upwards to the next valid rate.

    Default: 1,800,000

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    waveform points

    Number of points to acquire before the waveform acquisition completes.

    NI-DMM sets the Waveform Points property to this value.

    Default: 500

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    range

    Expected maximum amplitude of the input signal and range for the measurement function.

    NI-DMM sets the Range property to this value. Range values are coerced up to the closest input range.

    Auto Range is not supported during waveform acquisitions.

    Refer to the help manual for your DMM for valid ranges.

    Default: 10.0

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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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    session out

    Instrument identifier for subsequent NI-DMM nodes.

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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

    Hardware Support:

    This node is supported by the following modules:

    • PXI-4070
    • PXI-4071
    • PXI-4072
    • PXIe-4080
    • PXIe-4081
    • PXIe-4082

    For the PXIe-4080, PXIe-4081, and PXIe-4082, setting waveform points to 0 causes the waveform points to be acquired continuously.


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