National Instruments VXI-MIO Series User Manual page 139

U
UI
UISOURCE
unipolar
update
UPDATE
update rate
V
V
VDC
VI
VISA
V
IH
V
IL
V
in
V
OH
V
OL
V
ref
National Instruments Corporation
update interval
update interval counter clock signal
Unipolar input means that the input voltage range is between 0
and V , where V
ref ref
The output equivalent of a scan. One or more analog or digital
output samples. Typically, the number of output samples in an
update is equal to the number of channels in the output group. For
example, one pulse from the update clock produces one update
which sends one new sample to every analog output channel in the
group.
update signal
The number of output updates per second.
volts
volts direct current
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.
A new driver software architecture developed by National
Instruments to unify instrumentation software (GPIB, DAQ, and
VXI). It has been accepted as a standard for VXI by the
VXIplug&play Systems Alliance.
volts, input high
volts, input low
volts in
volts, output high
volts, output low
reference voltage
G-15
is a positive reference voltage.
Glossary
VXI-MIO Series User Manual