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Visualization Element: Bar Display

Symbol:

_visu_img_bar_display.png

Category: Measurement Controls

The element displays the value of a variable.

Element properties

Are all element properties available?

All properties are available only after you select the Advanced option or the All categories filter in Properties.

Element name

Example: GenElemInst_2

Tip

Assign individual names for elements so that they are found faster in the element list.

Element Type

Bar Display

Value

Variable (numeric data type)

The value of the variable is displayed as a bar length.

Center

The properties contain fixed values for the coordinates of the point of rotation. The rotation point is displayed in the editor as the _visu_icon_center_point.png symbol and is used as the center for rotation and scaling.

Tip

You can also change the values by dragging the _visu_icon_center_point.png symbol to another position in the editor.

X

X-coordinate of the point of rotation

Y

Y-coordinate of the point of rotation

Absolute movement

The properties can be assigned to IEC variables for controlling the position of the element dynamically. The reference point is the upper left corner of the element. At runtime, the entire element is moved.

Movement

X

  • Variable (numeric data type) for the X-position (in pixels)

    Example: PLC_PRG.iPos_X

Increasing this value at runtime moves the element to the right.

Y

Increasing this value at runtime moves the element downwards.

Rotation

Variable (numeric data type) for the angle of rotation (in degrees)

Example: PLC_PRG.iAngle1

The midpoint of the element rotates at the Center point. This rotation point is shown as the _visu_icon_center_point.png symbol.

At runtime, the alignment of the element remains the same with respect to the coordinate system of the visualization. Increasing the value rotates the element to the right.

_visu_img_prp_rotation.png

Interior rotation

Variable (numeric data type) for the angle of rotation (in degrees)

Example: PLC_PRG.iAngle2

At runtime, the element rotates about the point of rotation specified in Center according to the value of the variable. In addition, the alignment of the element rotates according to the coordinate system of the visualization. Increasing the value in the code rotates clockwise.

The rotation point is shown as the _visu_icon_center_point.png symbol.

Note

If a static angle of rotation is specified in the Position → Angle property, then the static angle of rotation is added to the variable angle of rotation (offset) when the visualization is executed.

_visu_img_prp_inner_rotation.png

Tip

You can combine the variables to a Unit conversion.

Tip

The X, Y, Rotation, and Interior rotation properties are supported by the "Client Animation" functionality.

Animation

Tip

These properties are available only when you have selected the Support client animations and overlay of native elements option in the Visualization Manager.

Animation duration

Variable for the duration (in milliseconds) in which the element runs an animation

  • Variable (integer value)

    Example: Menu.tContent with VAR tContent : INT := 500; END_VAR

  • Integer literal

    Example: 500

. Animatable properties
  • Absolute movement, Movement, X, Y

  • Absolute movement, Rotation

  • Absolute movement, Interior rotation

  • Absolute movement, Exterior rotation

The animated movement is executed when at least one value of an animatable property has changed. The movement then executed is not jerky, but is smooth within the specified animation duration. The visualization element travels to the specified position while rotating dynamically. The transitions are smooth.

Move to foreground

Variable (BOOL) for setting the element in the foreground

TRUE: At runtime, the visualization element is displayed in the foreground.

FALSE: At runtime, the visualization element is displayed in the layer where it was inserted in the visualization editor.

Example: bIsInForeground with VAR bIsInForeground : BOOL := FALSE; END_VAR

Background

Image color

List box containing background colors

Note

This property depends on the style. For example, there are no heterochromatic background images for FlatStyle and Whitestyle.

Own image

  • Image: ID of the background image.

    You select the background image from an image pool by clicking _cds_icon_three_dots.png.

    Tip

    If you specify the value <default> or select the image from the Default category in the Input Assistant, then the original element background image is used.

  • Transparent color: Color of pixels that are displayed as transparent

    Selection from list box or Input Assistant

Optimized drawing

standard icon: The background image is drawn one time. If there is a change in the foreground, then only the affected part of the image is redrawn.

_cds_icon_option_deactivated.png: The background image is redrawn in cycles.

Note

Deactivating this option is sensible only in certain exceptional cases.

Position

The position defines the location and size of the element in the visualization window. This is based on the Cartesian coordinate system. The origin is located in the upper left corner of the window. The positive horizontal X-axis runs to the right. The positive vertical Y-axis runs downwards.

X

The X-coordinate (in pixels) of the upper left corner of the element

Example: 10

Y

The Y-coordinate (in pixels) of the upper left corner of the element

Example: 10

Width

Specified in pixels

Example: 150

Height

Specified in pixels

Example: 30

Tip

You can change the values by dragging the box _visu_icon_position_element.png symbols to other positions in the editor.

Bar

Diagram type

Position of the scale

  • Scale besides bar

  • Scale in bar

  • Bar in scale

  • No scale

Orientation

. Orientation depending on the ratio of width to height of the bar display:
  • Horizontal

  • Vertical

Running direction

Direction the values are increased

. List box for Orientation Horizontal:
  • Left to right

  • Right to left

. List box for Orientation Vertical:
  • Bottom to top

  • Top to bottom

Optimum size for bar

standard icon: The bar width requires the majority of the element surface.

Note

This property depends on the style. For this reason, it is not provided for FlatStyle or WhiteStyle.

Scale

Scale start

Least value of the scale and therefore the lower limit of the value range for the element

Example: 0

Tip

In the value field, click the _visu_icon_variable.png symbol. Then the property is extended by the Variable property.

Variable

Variable (integer data type) for the scale start

Example: PLC_PRG.iScaleStart

Declaration:

Scale end

Greatest value of the scale and the upper limit of the value range for the element

Example: 100

_visu_icon_variable.png: The Variable property is displayed below it.

Variable

Variable (integer data type) for the scale end

Example: PLC_PRG.iScaleEnd

Declaration:

PROGRAM PLC_PRGVAR
    iScaleEnd : INT := 120;
END_VAR

Main scale

Distance between two values on the main scale

Example: 10

Tip

In the value field, click the _visu_icon_variable.png symbol. Then the property is extended by the Variable property.

Variable

Variable (integer data type) for the spacing

Example: PLC_PRG.iMainScale

Sub scale

Distance between two values on the fine scale

You can hide the fine scale by setting the value to 0.

Example: 2

Tip

In the value field, click the _visu_icon_variable.png symbol. Then the property is extended by the Variable property.

Variable

Variable (integer data type) Contains the distance.

Example: PLC_PRG.iSubScale

Scale line width

Specified in pixels

Example: 3

Scale color

Color of the tick marks

  • _cds_icon_three_dots.png:

    Color Dialog

  • _cds_icon_arrow_down.png: A list box with color names opens.

Scale in 3D

standard icon: Tick marks are displayed with soft 3D shadowing.

Note

This property depends on the style. Not available for FlatStyle.

Element frame

standard icon: A frame is drawn around the element.

Label

Unit

Text which is displayed in the element

Example: Display of units in m/s

Font

Font for labels (example: scale numbering).

Selection made from the list box or by clicking the _cds_icon_three_dots.png button.

Scale format (C syntax)

Values scaled in "printf" syntax

Examples: %d, %5.2f

Max. text width of labels

Optional value that defines the maximum width of the scale label

The value is set automatically.

Tip

Change this value only if the automatic adjustment does not actually yield the expected result.

Text height of labels

Optional value that defines the maximum height of the scale label

The value is set automatically.

Tip

Change this value only if the automatic adjustment does not actually yield the expected result.

Font color

Selection from the list box or by clicking the _cds_icon_three_dots.png button.

Positioning

Horizontal offset

Distance (in pixels) from the scale or bar to the horizontal element frame

Used for achieving the exact position relative to the background image

Vertical offset

Distance (in pixels) from the scale or bar to the vertical element frame

Used for achieving the exact position relative to the background image

Horizontal scaling

Horizontal division of the scale (in pixels)

Used for achieving the exact positioning relative to the background image

Vertical scaling

Vertical division of the scale (in pixels)

Used for achieving the exact positioning relative to the background image

Colors

Graph color

Color of the bar

Bar background

standard icon: The background of the bar is black.

_cds_icon_option_deactivated.png: The background of the bar is white.

Frame color

Color that the frames are drawn

Switch whole color

standard icon: The total color of the bar is switched to the color of the color area of the actual value.

Use gradient color for bar

standard icon: Bar is displayed with a gradient.

Color range markers

. The color areas can be separated from each other inside the bar with a vertical mark.
  • No markers: No display

  • Marker forwards: The color of the vertical mark corresponds to the color of the previous color area.

  • Marker backwards: The color of the vertical mark corresponds to the color of the next color area.

Color areas

Create new

A new color area is added.

Delete

The color area is removed from the list.

Begin of area

Start value of the color area

End of area

End value of the color area

Color

Color which is used for displaying the area

State variable

The variables control the element behavior dynamically.

Deactivate inputs

Variable (BOOL) for toggling the operability of the element

TRUE: User inputs do not have any effect in runtime more. The element is shown as deactivated.

Permissions

Note

Available only when a user management is set up for visualization.

Access Rights button

Opens the Access Rights dialog. There you can edit the access privileges for the element.

. Status messages:
  • Not set. Full rights.: Access rights for all user groups : operable

  • Rights are set: Limited rights: Access is restricted for at least one group.