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Glossary
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National Instruments Corporation G-25 AT-MIO-16X User Manual
update rate the number of output updates per second
V
V volts
V
DC
volts direct current
VDMAD virtual DMA driver
VI virtual instrument—(1) a combination of hardware and/or software
elements, typically used with a PC, that has the functionality of a classic
stand-alone instrument (2) a LabVIEW software module (VI), which
consists of a front panel user interface and a block diagram program
V
IH
volts, input high
V
IL
volts, input low
V
in
volts in
VISA a new driver software architecture developed by National Instruments
to unify instrumentation softwareGPIB, DAQ, and VXI. It has been
accepted as a standard for VXI by the VXIplug&play Systems Alliance.
visual basic custom a specific form of binary packaged object that can be created by
control (VBXs) different companies and integrated into applications written using
Visual Basic
V
OH
volts, output high
V
OL
volts, output low
VPICD virtual programmable interrupt controller device
V
ref
reference voltage
V
rms
volts, root mean square
W
waveform multiple voltage readings taken at a specific sampling rate
wire data path between nodes