Preconfiguration "PID regulator"

Small system PID controller variant

This preconfiguration can be activated when creating a new object (e.g. by "New object ..." in the local object menu or by pressing the Insert key after selecting the object) and is included in the group: "/ Technology / Regulators".
This preconfiguration can be created in the object: PmaFolder or PmaRoot.



In the PmaData object named "Data", there are the main variables w - desired value, u - regulator output and y - measured value. These variables are connected by ExtTrend to the PmaTrendGroup object. The Kp, Ti, Td and t values are controller constants. The values limiting the regulator output are umax, umin and bLimit. Other values are only auxilliary, used for storing the data since the last controller action.

The PmaTimer object named "Timer" contains in the onTick event the whole regulation calculation. The comments are used to describe each step of the calculation.

The PmaPanel object serves for testing the regulation parameters. In the upper portion of the panel, there are Pmg objects representing the block diagram of the controller circuit. The regulation circuit includes the description texts and current regulation values displayed as PmgNumber objects. The PmgWEdit can be used to modify the constants or controller limits. The PmgTrendViewer object displays the progress of the regulation. The PmgSlider object is connected by data binding to the data value w and can be used to simulate the desired value (value - y) to be reached by the controlled system.