Glossary
©NationalInstruments Corporation G-3 7344/7334Hardware User Manual
Axis<1..4> Reverse
Limit Input
axis 1 through 4 reverse/counter-clockwiselimit input
B
bbit—one binary digit, either 0 or 1
basead dress memory address that servesas the startin g address for programmable or
I/O busregisters. All other addresses are located by adding to the base
address.
binary anumber system with a base of 2
buffer temporarystorage for acquired or generated data (software)
bus thegroup of conductors that interconnect individual circuitry in a computer.
Typically,a bus is the expansion vehicle to which I/O or other devices are
connected.
byte eight related bits of data, an eight-bit binary number. Also used to denote
the amount of memory required to store one byte ofd ata.
C
CCW counter-clockwise—impliesd irection of rotation of the motor
closed-loop am otion system that uses a feedback deviceto provide position and
velocitydata for status reporting and accurately controlling position and
velocity
common reference signal for digital I/O
CPU centralprocessing uni t
crosstalk anunwanted signal on one channel due to an input on a different channel
CSR Communications Status Register
CW clockwise—implies direction of motor rotation