// multi-utility computation suite · offline · instant · precise
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│ [c] calcalyst_ │
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eng.pid-controller-tuning Calculator
Calculates PID controller gains from open-loop process step response (reaction curve) using the Cohen-Coon or IMC method. IMC tuning is preferred over Ziegler-Nichols for industrial processes — it provides a systematic approach with an adjustable speed/robustness tradeoff.
Inputs
Kp
Reference formula or conversion factor shown for context.
Ki
Reference formula or conversion factor shown for context.
Kd
Reference formula or conversion factor shown for context.
Setpoint
Reference formula or conversion factor shown for context.
Process Variable
Rate of charge flow (A). I = V/R. Above ~100 mA through the body can be lethal. Fuses protect against overcurrent.
Results
control output
Sample size or count used in the calculation.
proportional term
Sample size or count used in the calculation.
integral term (snapshot)
Area under the curve between the specified limits. In physics: integral of velocity = displacement; integral of force over time = impulse.
error
The difference between the computed result and the exact or true value — a measure of approximation accuracy.