stPMU Measure Current
- Updated2023-02-17
- 3 minute(s) read
stPMU Measure Current
Measures the current on the channels specified in the channel list parameter.
You must call the stPMU Source Currentnode or the stPMU Source Voltagenode before measuring current with this node, or NI-HSDIO returns an error.
Inputs/Outputs
session in
Instrument session obtained from the Initialize Acquisition Sessionnode, the Initialize Generation Sessionnode, or the Initialize External Calibrationnode.
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.
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 value: 4E^6 (0.000004)
error in
Error conditions that occur before this node runs.
The node responds to this input according to standard error behavior.
Default value: No error
session out
Handle that identifies the session in all subsequent node calls.
The session out parameter is obtained from the Initialize Acquisition Sessionnode or the Initialize Generation Sessionnode.
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.
error out
Error information.
The node produces this output according to standard error behavior.
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 Commitnode, the Initiatenode, the Read Waveformnode, the Write Named Waveformnode, or the other nodes, this node will not commit your session again.