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IviFgen Create Channel Arbitrary Waveform [ACH] (G Dataflow)

Version:
    Last Modified: October 24, 2017

    Creates a channel-specific arbitrary waveform and returns a handle that identifies that waveform.

    You pass this handle to IviFgen Configure Arbitrary Waveform [ARB] to produce that waveform. You also use the handles this node returns to specify a sequence of arbitrary waveforms with IviFgen Create Arbitrary Sequence [SEQ].

    If the instrument does not support channel-based arbitrary waveform creation, use the IviFgen Create Arbitrary Waveform VI.

    Use the following VIs to create a channel-specific arbitrary waveform if you want to pass data in 16-bit or 32-bit binary:

    - IviFgen Create Channel Arbitrary Waveform Int16 [AB] VI

    - IviFgen Create Channel Arbitrary Waveform Int32 [AB] VI

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    Note  

    This node is part of the IviFgenArbChannelWfm [ACH] extension group.

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    Waveform Data Array

    Specify the array of data you want to use for the new arbitrary waveform. The array must have at least as many elements as the value you specify in the waveform size control. You must normalize the data points in the array to be between -1.00 and +1.00. When you create a multi-channel waveform, this array is the concatenation of the waveform arrays for each channel. In this case, all waveforms must be of the same length. Default Value: None

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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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    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.
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    Waveform Handle

    Returns the handle that identifies the new arbitrary waveform. Pass this handle to the IviFgen Create Arbitrary Waveform [ARB] VI to generate the arbitrary waveform. Pass an array of these handles to the IviFgen Create Arbitrary Sequence [SEQ] VI to create an arbitrary sequence.

    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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