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
