PID()

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Syntax

PID(target, current, p, i, d)

Returns

Number

Description

A Proportional-Integral-Derivative (PID) controller that calculates an output to match a target requirement based on feedback from a current observed status.

Arguments

• target (Number): The desired goal value.
• current (Number): The observed status variable to be compared against the target.
• p (Number): The Proportional constant; determines the magnitude of the immediate correction.
• i (Number): The Integral constant; determines how quickly the system corrects persistent errors.
• d (Number): The Derivative constant; prevents overshooting by dampening the correction.

Examples

• PID(10, AltitudeAgl, 1, 0.5, 2) attempts to maintain the aircraft at a hover height of 10 meters.