FAQ Tag: PID

Tech Note 7013, “PID Loop Configuration” explains the PID (Proportional Integral Derivative) instructions available in MAPware-7000 for Maple Systems HMI + PLC and PLC products. The PID function is used to control process variables such as temperature, pressure, liquid level, or flow rate. Because the controlled process characteristics vary widely, this guide explains basic/general methods…

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The basic idea behind a PID controller is to read a sensor, then compute the desired actuator output based on a setpoint by calculating proportional, integral, and derivative responses and summing those three components to compute the output. The PID controller receives the process variable (PV) and controls the manipulation variable (MV) in order to…

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