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Set Arbitrary Waveform Next Write Position (G Dataflow)

Version:
    Last Modified: December 19, 2017

    Configures the start position to use for writing a waveform before calling Write Arbitrary Waveform .

    This node allows you to write to arbitrary locations within the waveform. These settings apply only to the next write to the waveform specified by the name input of Allocate Arbitrary Waveform or Write Arbitrary Waveform. Subsequent writes to that waveform begin where the last write ended, unless this node is called again.

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    Note

    If you use this node to write the waveform that is currently generating, an undefined output may result.

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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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    relative to

    Reference position in the waveform.

    The position and offset together determine where to start loading data into the waveform.

    Name Value Description
    Start of Waveform 0 The reference position is relative to the start of the waveform.
    Current Position 1 The reference position is relative to the current position.
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    offset

    Offset from the relative to input at which to start loading the data into the waveform.

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    name

    Name of the waveform. This string is case-insensitive and alphanumeric, and it cannot use reserved words.

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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.

    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-5820/5840


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