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Glossary
G-8
ni.com
relative position
destination or target position for motion specified with respect to the
current location regardless of its value
relative position mode
position relative to current position
ribbon cable
flat cable in which the conductors are side by side
RPM
revolutions per minute—units for velocity
RPSPS or RPS/S
revolutions per second squared—units for acceleration and deceleration
RTR
Ready to Receive
S
s
seconds
servo
specifies an axis that controls a servo motor
stepper
specifies an axis that controls a stepper motor
stepper <1..4>
Dir (CCW)
direction output or counter-clockwise direction control
stepper <1..4>
Step (CW)
stepper pulse output or clockwise direction control
T
toggle
changing state from high to low, back to high, and so on
torque
force tending to produce rotation
trapezoidal profile
typical motion trajectory, where a motor accelerates up to the programmed
velocity using the programmed acceleration, traverses at the programmed
velocity, then decelerates at the programmed acceleration to the target
position
trigger
any event that causes or starts some form of data capture
TTL
transistor-transistor logic