Preconfiguration "PID controller"

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 used with the objects: PmFolder or PmRoot.

- Preconfiguration creates an object of type PmFolder containing PmPanel, PmData, PmTimer and PmTrend objects.
- The preconfiguration is created not including the panel functionality as a Web panel.
In the PmData object named Data, there are the main variables w - desired value, u - regulator output and y - measured value. These variables are connected by ExtTrend into the PmTrend 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 PmTimer object named Timer contains in the onTick events the whole regulation calculation. The comments are used to describe each step of the calculation.
The PmPanel object is used for testing the regulation parameters. In the upper portion of the panel, there are graphic items representing the block diagram of the controller circuit. The regulation circuit includes the description texts and current regulation values displayed as PmiText items. The PmiWEdit can be used to modify the constants or controller limits. The TrendsView graphic item displays the progress of the regulation. The PmiSlider item is connected by a 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.
These configurators can be set before the preconfiguration is created:
The name of created objectName of the object created in the application object tree. This is a system name and must not contain diacritics, empty string, spaces and the first character must not be a number.

Default: "PID"

Enable as Web componentSpecifies whether this object has to be registered as a Web server component

After this preconfiguration is created, the configurator is se to: PmPanel > Web server > Enable as Web component.

PmWeb objectPath in the objects tree to the PmWeb, PmWebFolder or PmWebLang object where the registration is carried out.

Macro expression can be used for input (it is evaluated while the application is launching).

After this preconfiguration is created, the configurator is se to: PmPanel > Web server > PmWeb object.

PROMOTIC 8.3.30 SCADA system documentation - MICROSYS, spol. s r.o.

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