ISA Certified Automation Professional (CAP) program
Certified Automation Professionals (CAPs) are responsible for the direction, design, and deployment of systems and equipment for manufacturing and control systems.
Processing of the PID algorithm in a digital controller presents which of the following alternatives not available in an analog or pneumatic controller system?
A. correction of integral windup, eliminating overshoots in the controlled response
B. setting of the control output to any reasonable arbitrary level
C. reduction of the error between set point and process variable
D. calculation of the increment by which the controller output should be changed
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