3.4.3.6 Expanding conventions

For the following illustrations, the legend is as follows:

Figure 1 – OPC UA standard definitions

Additional definitions:

Figure 2 – OPC UA and additional definitions

Table 10 describes the additional definitions.

Table 10 – Description of additional definitions
Node element Graphical representation Definition of node element
Mandatory ObjectRectangular FrameA mandatory object with its type definition
Optional ObjectRectangular bold dashed FrameAn optional object with its type definition
Mandatory Placeholder ObjectRectangular bold FrameA mandatory placeholder for objects with its type definition
Optional Placeholder ObjectRectangular dotted FrameAn optional placeholder for objects with its type definition
ObjectTypeRectangular Frame with shadowAn object type with its type definition
VariableTypeRounded rectangular Frame with shadowA variable type with its type definition
Mandatory VariableRectangular Frame with rounded cornersA mandatory variable with its type definition
Optional VariableDotted rectangular Frame with rounded cornersAn optional variable with its type definition