National Instruments 7334 - Manual (Page 54)

Glossary
7344/7334 Hardware User Manual G-2 ni.com
A
A amperes
A/D analog-to-digital
absolute mode treat the target position loaded as position relative to zero (0) while making
a move
absolute position position relative to zero
acceleration/
deceleration a measurement of the change in velocity as a function of time. Acceleration
and deceleration describes the period when velocity is changing from one
value to another.
active-high a signal is active when its value goes high (1)
active-low a signal is active when its value goes low (0)
ADC analog-to-digital converter
address character code that identifies a specific location (or series of locations)
in memory or on a host PC bus system
amplifier the drive that delivers power to operate the motor in response to low level
control signals. In general, the amplifier is designed to operate with a
particular motor type—you cannot use a stepper drive to operate a DC
brush motor, for instance
Analog Input <1..4> 12-bit analog ADC input
Analog Output <1..4> DAC voltage output
API application programming interface
axis unit that controls a motor or any similar motion or control device
Axis <1..4> Inhibit axis 1 through 4 inhibit output
Axis <1..4> Forward
Limit Input axis 1 through 4 forward/clockwise limit switch
Axis <1..4> Home
Input axis 1 through 4 home input