Lenze DDS v2.3 Manual de usuario descargar pdf (Pagina 239)

Drive PLC Developer Studio

Visualization

9-5

l DDS EN 2.3

9.2 Editing visualization elements

9.2.1 Information in the status bar

The status bar contains the following information for visualization:

X /Y position

The current X and Y position of the mouse pointer is displayed in pixels relative to the top left-hand

corner of the image.

Element number

If the mouse pointer is positioned over an element or if an element is edited, the number of the

element will be displayed.

Insertion mode

If the insertion mode is active, the name of the element to be inserted will be displayed.

9.2.2 Expressions

The following inputs are possible if PLC variables are effective in the configuration of a visualization

object.

• Variable name with Help Manager

• Composite expressions consisting of

– component accesses (e. g. STRUCT)

– field accesses ( ARRAYaccess) with constant index

– variables and direct addresses

• Operators and addresses that can be combined with the named expressions.

Examples of permissible expressions

x+y

100*PLC_PRG.a

TRUE

NOT PLC_PRG.b

q*sin(x+100)+cos(y+100)

The following inputs are not possible.

• Function calls

Impermissible expressions lead to an error message during log-in

(incorrect Watch expression)

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Lenze DDS v2.3 Manual de usuario Pagina 239