List of facade elements

The data of all windows (facade elements) per facade are stored within the program in a field of structural elements of the type ST_BARFacadeElement.
The declaration is global, because the management function block FB_BARFacadeElementEntry as well as the shading correction FB_BARShadingCorrection / FB_BARShadingCorrectionSouth access this field directly via input/output variable:

VAR_GLOBAL
     arrFacadeElement : ARRAY[1..iColumnsPerFacade, 1..iRowsPerFacade] OF ST_BARFacadeElement;
END_VAR

The variables iColumnsPerFacade and iRowsPerFacade thereby define the upper limit of the available elements and are to be globally declared as constants:

VAR_GLOBAL CONSTANT
     iRowsPerFacade    : INT :=10;
     iColumnsPerFacade : INT :=20;
END_VAR