National Instruments PID Control Toolkit 371685C-01 User Manual page 32

Glossary
A
algorithm
autotuning
Autotuning Wizard
B
bias
bumpless transfer
C
cascade control
closed loop
controller
controller output
cycle time
© National Instruments Corporation
A prescribed set of well-defined rules or processes for the solution of a
problem in a finite number of steps.
Automatically testing a process under control to determine the controller
gains that will provide the best controller performance.
An automated graphical user interface provided in the Autotuning
functions. The Autotuning Wizard gathers some information about the
desired control from the user and then steps through the PID autotuning
process. You must specify to use wizard-based autotuning in
PidCreateWithAutotune
The offset added to a controller's output.
A process in which the next output always increments from the current
output, regardless of the current controller output value. Therefore, transfer
from automatic to manual control is always bumpless.
Control in which the output of one controller is the setpoint for another
controller.
A signal path that includes a forward path, a feedback path, and a summing
point and that forms a closed circuit. Also called a feedback loop.
Hardware and/or software used to maintain parameters of a physical
process at desired values.
A quantity or condition that is varied as a function of the actuating error
signal so as to change the value of the directly controlled variable.
The time between samples in a discrete digital control system.
to use this feature.
G-1 LabWindows/CVI PID Control Toolkit User Manual