NI PCI-7390, Руководство пользователя

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Glossary
© National Instruments Corporation G-3 NI PCI-7390 User Manual
D
dedicated Assigned to a particular function.
DGND digital ground signal
DLL dynamically-linked library—provides the API for the motion control
boards.
drivers Software that communicates commands to control a specific motion control
board.
DSP digital signal processor
E
encoder Device that translates mechanical motion into electrical signals; used for
monitoring position or velocity in a closed-loop system.
encoder resolution The number of encoder lines between consecutive encoder indexes (marker
or Z-bit). If the encoder does not have an index output the encoder
resolution can be referred to as lines per revolution.
F
f farad
FIFO first-in, first-out
filtering A type of signal conditioning that filters unwanted signals from the signal
being measured.
flash ROM A type of electrically reprogrammable read-only memory.
following error
trip point The difference between the instantaneous commanded trajectory position
and the feedback position. If the following error increases beyond the
maximum allowable value entered—referred to as the following error trip
point—the motor trips on following error and is killed, preventing the axis
from running away.
FPGA field programmable gate array