Process control introduction, two processes sample being controlled: boiler temperature, hot water. computers in control systems, Off-line control, On-line control, on-ine control, open-loop control, closed loop control. Types of control: ON/OFF or two-position control, Continuous control, Proportional Control, Integral Control. PID (Proportional Integral Derivative) Control (called three term control), Analogue Control Systems, DDC (Direct Digital Control)
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