Glossary
Getting Started with SCXI G-8 www.ni.com
programmed I/O the standard method a CPU uses to access an I/O device—each byte of data
is read or written by the CPU
pts points
PXI PCI eXtensions for Instrumentation. PXI is an open specification that
builds off the CompactPCI specification by adding
instrumentation-specific features
R
RAM random-access memory
RC resistance-capacitor
Remote SCXI refers to an SCXI configuration where either an SCXI-2000 chassis or an
SCXI-2400 remote communications module is connected to the serial port
of your computer
REQ request
resolution The smallest signal increment that can be detected by a measurement
system. Resolution can be expressed in bits, in proportions, or in percent of
full scale. For example, a system has 12-bit resolution, one part in 4,096
resolution, and 0.0244% of full scale.
resolver transformer-based sensor for measuring absolute angular displacement
over 360 degrees. Measurement is continuous for any number of turns. The
simultaneous conditioning of a sine and a cosine signal required.
R
g
gauge resistance
R
L
line resistance
RMA return material authorization
ROM read-only memory
R
SCAL
gauge resistance
RSE referenced single-ended
RTD resistance temperature detector—a metallic probe that measures
temperature based upon its coefficient of resistivity
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