Glossary
© National Instruments Corporation G-5 NI 7350 User Manual
K
k kilo—The standard metric prefix for 1,000, or 103, used with units of
measure such as volts, hertz, and meters.
K kilo—The prefix for 1,024, or 210, used with byte (B) in quantifying data or
computer memory.
L
LIFO last-in, first-out
limit switch/
end-of-travel position
(input)
Sensors that alert the control electronics that the physical end of travel is
being approached and that the motion should stop.
M
MCS move complete status—A status bit on the motion controller that indicates
that the current move is finished. The status depends on various factors that
you can configure using software.
microstep Proportional control of energy in the coils of a stepper motor that allow the
motor to move to or stop at locations other than the fixed
magnetic/mechanical pole positions determined by the motor
specifications. This capability facilitates the subdivision of full mechanical
steps on a stepper motor into finer microstep locations that greatly smooth
motor running operation and increase the resolution or number of discrete
positions that a stepper motor can attain in each revolution.
modulo position Treat the position as if it is within the range of total quadrature counts per
revolution for an axis.
N
noise An undesirable electrical signal—noise comes from external sources such
as the AC power line, motors, generators, transformers, fluorescent lights,
soldering irons, CRT displays, computers, electrical storms, welders, radio
transmitters, and internal sources such as semiconductors, resistors, and
capacitors. Noise corrupts signals you are trying to send or receive.