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IviFgen Configure Arbitrary Waveform [ARB] (G Dataflow)

Version:
    Last Modified: October 24, 2017

    Configures the properties of the function generator that affect arbitrary waveform generation.

    These properties are the arbitrary waveform handle, gain, and offset.

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    Note  

    This node is part of the IviFgenArbWfm [ARB] extension group.

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    offset (0.00 V)

    Specifies the value the function generator adds to the arbitrary waveforms in the sequence. When you create arbitrary waveforms, you must first normalize the data points to a range of -1.00 to +1.00. You use this parameter to shift the ranges of the arbitrary waveforms in the sequence. The driver sets the IviFgen>>Arbitrary Waveform Output>>Arbitrary Waveform Offset [ARB] property to this value. For example, to configure the output signal to range from 0.00 volts to 2.00 volts instead of -1.00 volts to 1.00 volts, set the Offset to 1.00. Units: Volts Default Value: 0.0

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    gain (1.00)

    Specifies the factor by which the function generator scales the arbitrary waveforms in the sequence. When you create arbitrary waveforms, you must first normalize the data points to a range of -1.00 to +1.00. You use this property to scale the waveforms in the sequence to other ranges. The driver sets the IviFgen>>Arbitrary Waveform Output>>Arbitrary Waveform Gain [ARB] property to this value. For example, to configure the output signal to range from -2.00 volts to +2.00 volts, set the gain to 2.00. Units: None Default Value: 1.00

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    instrument handle

    The instrument handle that you obtain from the IviFgen Initialize or IviFgen 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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    channel name ("CHANNEL1")

    Specifies the virtual channel name that you assign to the instrument in the Configuration Utility. Users who want to achieve interchangeability should use a virtual channel name. The virtual channel name should be sufficiently specific to the test system such that it is unlikely to conflict with a physical channel name. Virtual channel names are aliases for instrument-specific channel strings. The instrument-specific channel strings can differ from one instrument to another. Virtual channel names allow you to use and swap instruments without having to change the channel names in your source code. You assign a virtual channel name to an instrument-specific channel through the Configuration Utility. This control accepts virtual channel names you have assigned to the specific instrument you are using. It also accepts the instrument-specific channel names.

    Default: "CHANNEL1"

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    waveform handle (0)

    Pass the handle of the arbitrary waveform you want the function generator to produce. The driver sets the IviFgen>>Arbitrary Waveform Output>>Arbitrary Waveform Handle [ARB] property to this value. You create an arbitrary waveform using following VIs: IviFgen Create Arbitrary Waveform [ARB] VI IviFgen Create Channel Arbitrary Waveform [ACH] VI IviFgen Create Channel Arbitrary Waveform Int16 [AB] VI IviFgen Create Channel Arbitrary Waveform Int32 [AB] VI These VIs return a handle that you can use to identify the waveform. Default Value: None

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    instrument handle out

    The instrument handle that you obtain from the IviFgen Initialize or IviFgen 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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