AixLib.Controls.Continuous.Examples.LimPID

# .AixLib.Controls.Continuous.Examples.LimPID

Test model for PID controller with optional reverse action

## Information

This model tests the implementation of the PID controller with optional reverse action. The model `limPIDOri` is the original implementation of the controller from the Modelica Standard Library. The models `limPID` and `limPIDRev` are the implementations from the AixLib library. The model `limPIDRev` is parameterized to have reverse action. The assertion blocks test whether the results of all three controllers are identical.

## Revisions

- April 26, 2016, by Michael Wetter:
  Relaxed tolerance of assertions from 1E-10 to 1E-3 as the default relative tolerance in JModelica is 1E-4. This is for Buildings, issue 510.
- November 21, 2011, by Michael Wetter:
  Added documentation.

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