Data binding PP - Pma object property - configuration window

Description:

The value of the data binding PP is a property value of the selected Pma object.

Data binding configurators:

Object	Path to the Pma object in the Pma objects tree, a data binding has to be created to its property (case sensitive text). The path describes the location of the object in the Pma objects tree. Each tree level adress is separated by the / character. - The immersed Pma object is referrenced by its name. - The superior Pma object is referrenced by .. characters. - The immersed implementation subobject (other than PmaObject type) is referrenced by # character, followed by the implementation subobject type definition (e.g. #vars). It means that the # addressing leaves the Pma objects tree (created by user) and starts to address the implementation subobjects of the Pma object. For example "/appdata/data/#vars/Temperature". Macro expression can be used for input (it is evaluated while the window is opening). See Example3.
Property	Property of selected object. Macro expression can be used for input (it is evaluated while the window is opening). The button "..." (on the right) opens "Selection of the property or method of the object" configuration window.

Dynamic property	Check only in special cases: Check only if an EXPRESSION is written in the property row, for example: - Trends(0).Unit and if the object (in this case the Trend subobject referenced by the "Object" and "Property" configurators) can be dynamically removed and created again in runtime. DON'T check if there is written only the name of the elementary property in the property row, for example Value, Visible, etc.

Note:

This data binding is also functional in Web panels. The values of this data binding are evaluated via the Web server communication (with the PROMOTIC application). The Web client (i.e. Web browser) communicates with the Web server on a regular basis with the defined tiime period - see the "PmaPanel > Web server > Refresh period of the Web panel [s]" configurator.

Example1:

Example for absolute path: Binding to the Temperature variable in the PmaData object places on the absolute path "/Boiler1/Data".

Object: /Boiler1/Data/#vars/Temperature

Property: Value

Example2:

Example for relative path: Binding to the Temperature variable in the PmaData object named "Data" places beside this panel (beside PmaPanel object where this binding is used).

Object: ../Data/#vars/Temperature

Property: Value

Example3:

Example for using Macro expression $.par: Binding to the Temperature variable in the PmaData object places on the absolute path "/Boiler1/Data" (or Boiler2,3,4) according to the nmb parameter value.

Object: $.join("/Boiler",$.par("nmb"),"/Data/#vars/Temperature")

Property: Value