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DAQmx Create Virtual Channel (Analog Input » Built in Temperature Sensor) (G Dataflow)

Version:
    Last Modified: February 6, 2017

    Creates channel(s) that use the built-in sensor of a terminal block or device to measure temperature. On SCXI modules, for example, the built-in sensor could be the CJC sensor.

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    task in

    task in specifies the task to which to add the virtual channels this node creates. If you do not specify a task, NI-DAQmx creates a task for you, and adds the virtual channels this node creates to that task.

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    physical channels

    physical channels specifies the names of the physical channels to use to create virtual channels. The DAQmx physical channel constant lists all physical channels on devices and modules installed in the system.

    You can also wire a string that contains a list, or range of physical channels, to this input. If you have an array of physical channels, use the DAQmx Flatten Channel String node to convert the array to a list.

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    name to assign

    name to assign specifies a name to assign to the virtual channel this node creates. If you do not wire a value to this input, NI-DAQmx uses the physical channel name as the virtual channel name.

    If you use this input to provide your own names for the virtual channels, you must use the names when you refer to these channels in other NI-DAQmx nodes, such as the source input of the DAQmx Trigger node.

    If you create multiple virtual channels with one DAQmx Create Virtual Channel node, you can specify a comma-separated list of names to assign to the virtual channels. If you provide fewer names than the number of virtual channels you create, NI-DAQmx automatically assigns names to the virtual channels.

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    units

    units specifies the units to use to return temperature measurements.

    Name Description
    deg C

    Degrees Celsius.

    deg F

    Degrees Fahrenheit.

    deg R

    Degrees Rankine.

    From Custom Scale

    Units a custom scale specifies. If you select this value, you must wire a custom scale name to the custom scale name input.

    K

    Kelvins.

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    error in

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

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    task out

    task out is a reference to the task after this node runs. The task contains any newly created virtual channels. If you did not wire a value to task in, NI-DAQmx automatically creates the task this output refers to.

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    error out

    error out contains error information. If error in indicates that an error occurred before this node ran, error out contains the same error information. Otherwise, error out describes the error status that this node produces.

    Where This Node Can Run:

    Desktop OS: Windows

    FPGA: LabVIEW NXG does not support FPGA devices


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