Table Of Contents

stPMU Measure Current (G Dataflow)

Version:
    Last Modified: September 27, 2017

    Measures the current on the channels specified in the channel list parameter.

    You must call the stPMU Source Current node or the stPMU Source Voltage node before measuring current with this node, or NI-HSDIO returns an error.

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    Note  

    Only the PXIe-6555 and the PXIe-6556 support this node.

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    session in

    Instrument session obtained from the Initialize Acquisition Session node, the Initialize Generation Session node, or the Initialize External Calibration node.

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    channel list

    The channels you want to configure.

    Specify multiple channels by using a channel list or a channel range. A channel list is a comma (,) separated sequence of channel names (for example, 0,2 specifies channels 0 and 2). A channel range is a lower bound channel followed by a hyphen (-) or colon (:) followed by an upper bound channel (for example, 0-2 specifies channels 0, 1, and 2).

    Use PFI1 or PFI2 to specify a valid PFI channel. Use DDC_CLKOUT or STROBE to specify a valid clocking terminal. If you configure multiple channels with this parameter, all those channels have the same settings. Selecting no channels for this parameter returns an error.

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    aperture time (4E-06)

    Parameter that configures the amount of time, in seconds, to measure each channel.

    The aperture time determines the number of hardware averages per measurement. The larger the aperture time, the greater the number of hardware averages.

    Default: 4E^6 (0.000004)

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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

    Handle that identifies the session in all subsequent node calls.

    The session out parameter is obtained from the Initialize Acquisition Session node or the Initialize Generation Session node.

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    current measurements

    The returned array of double-precision numbers representing the averaged measured currents, per channel, in amps (A), over time.

    The order of the returned currents directly corresponds with the order in which the channels are configured in the channel list parameter.

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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.

    Committing your session

    If you have not yet committed your session, calling this node implicitly commits your session. If you have already committed your session by calling a node such as the Commit node, the Initiate node, the Read Waveform node, the Write Named Waveform node, or the other nodes, this node will not commit your session again.

    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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