Visualization Element ‘Scrollbar’

Symbol: 7c176957de700f33c0a8640e01e31860_37a92ff6879f3392c0a8640e015eeb46

Tag: Common controls

This element sets the value of a variable, depending on the position of the scrollbar.

Element properties

Element name

Optional

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

Example: Speed_Conveyor_1

Element type Scrollbar
Value IEC variable as type integer that includes the position of the scroll box in the scroll bar.
Minimum value Least value of the scrollbar (fixed value or variable).
Maximum value Greatest value of the scrollbar (fixed value or variable).
Page size

Page size

  • as a fixed value, for example 10
  • as an IEC variable of data type integer Clicking for more options ( 7c176957de700f33c0a8640e01e31860_1c1810501108e68bc0a8640e01b2d0e8 ) opens the input assistance.

Requirement: Visible when the Move to click property is not selected.

Move to click

Function of the scrollbar at visualization runtime when it is clicked:

7c176957de700f33c0a8640e01e31860_9a3f06830c0506c5c0a8640e012f0ace : The scrollbar moves to the clicked position.

7c176957de700f33c0a8640e01e31860_4681610f0c058035c0a8640e0049916a : The scrollbar moves to one Page size in the direction of the click.

Element property ‘Position’

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

X

X coordinate of the upper left corner of the element

Specified in pixels.

Example: 10.

Y

Y coordinate of the upper left corner of the element

Specified in pixels.

Example: 10.

Width

Specified in pixels.

Example: 150

Height

Specified in pixels.

Example: 30

Note

You can also change the values by dragging the box symbols ( 7c176957de700f33c0a8640e01e31860_7b449e02d0393877c0a8640e01fd8c9e ) to other positions in the editor.

See also

Element property ‘Bar’

The property defines the representation of scaling and direction of travel.

Orientation

Alignment of the slider; defined by the ratio of width to height.

  • Horizontal
  • Vertical

You can modify the alignment in the visualization editor by using the pointing device to adjust the width and height of the scrollbar.

Running direction

The drop-down list varies depending on the alignment of the slider.

Horizontal

  • Left to right: Scale starts at the left.
  • Right to left: Scale starts at the right.

Vertical

  • Bottom to top: Scale starts at the bottom.
  • Top to bottom: Scale starts at the top.

Element property ‘Colors’

The properties contain fixed values for setting colors.

Color

Color for the element in its normal state.

Please note that the normal state is in effect if the expression in the Color variables ‣ Toggle color property is not defined or it has the value FALSE.

Alarm color

Color for the element in alarm state.

Please note that the alarm state is in effect if the expression in the Color variables ‣ Toggle color property has the value TRUE.

Transparency

Value (0 to 255) for defining the transparency of the selected color.

Example 255: The color is opaque. 0: The color is completely transparent.

See also

Element property ‘Texts’

The properties contains character strings for labeling the element. The character string can also contain a placeholder with a format definition. In runtime mode, the placeholder is replaced by the current value in the specified format.

CODESYS accepts the specified texts automatically into the GlobalTextList text list. Therefore, these texts can be localized.

Text

Character string (without single straight quotation marks) for the labeling the element.

Example: Accesses: %i

The variable that contains the current value for the placeholder is specified in the property Text variable ‣ Text.

Tooltip

Character string (without single straight quotation marks) that is displayed as the tooltip of an element.

Example: Number of valid accesses.

The variable that contains the current value for the placeholder is specified in the property Text variable ‣ Tooltip.

See also

Element property ‘Text properties’

The properties contain fixed values for the text properties.

Horizontal alignment Horizontal alignment of the text within the element.
Vertical alignment Vertical alignment of the text within the element.
Font

Example: Default

7c176957de700f33c0a8640e01e31860_2be833ef7deb1e6ec0a8640e0056e76c : The Font dialog box opens.

7c176957de700f33c0a8640e01e31860_379d3b8945773148c0a8640e0139d9cb : Drop-down list with style fonts.

Font color

Example: Black

7c176957de700f33c0a8640e01e31860_2be833ef7deb1e6ec0a8640e0056e76c : The Color dialog box opens.

7c176957de700f33c0a8640e01e31860_379d3b8945773148c0a8640e0139d9cb : Drop-down list with style colors.

Transparency

Whole number (value range from 0 to 255). This determines the transparency of the respective color.

Example: 255: The color is opaque.

0: The color is completely transparent.

Please note: If the color is a style color and already has a transparency value, then this property is write-protected.

Element property ‘Text variables’

These properties are variables with contents that replace a format definition.

Text variable

Variable (data type compliant with the format definition). It contains what is printed instead of the format definition.

Example: PLC_PRG.iAccesses

Note: The format definition is part of the text in the property Texts ‣ Text.

Note: If you specify a variable of type enumeration with text list support, then the name of the enumeration data type is added automatically in angle brackets after the variable name. Example: PLC_PRG.enVar <myEnum>. Then the symbolic value of the enumeration component is printed instead of the numeric value when text is printed. Refer to the help page for the DUT object.

Tooltip variable

Variable (data type compliant with the format definition). It contains what is printed instead of the format definition.

Example: PLC_PRG.iAccessesInTooltip

Note: The format definition is part of the text in the property Texts ‣ Tooltip.

See also

Element property ‘Dynamic texts’

The properties contain references to the texts of a text list.

Text list

Variable (string) or name of the text list as a fixed string in single straight quotation marks.

Example: 'Errorlist'

7c176957de700f33c0a8640e01e31860_379d3b8945773148c0a8640e0139d9cb : Drop-down list with the dialogs available in the text lists.

Text index

Text list ID. This refers to the desired output text.

  • As fixed string with the ID in single straight quotation marks.

    Example: '1'

  • As a variable (STRING) for dynamically controlling the text output.

    Example: strTextID

    Sample assignment: PLC_PRG.strTextID := '1';

Tooltip index

Text list ID. This refers to the desired output text.

  • As fixed string with the ID in single straight quotation marks.

    Example: '2'

  • As a variable (STRING) for dynamically controlling the text output.

    Example: strToolTipID

    Sample assignment: PLC_PRG.strToolTipID := '2';

See also

  • Text list: Textlist

Element property ‘Font variables’

The variables allow for dynamic control of the text display.

Font name

Variable (STRING). Includes the font of the text.

Example: PLC_PRG.stFontVar := 'Arial';

The selection of fonts corresponds to the default Font dialog box.

Size

Variable (numeric data type). Contains the font size (in pixels or points). The applied unit is specified in brackets after the variable name.

  • <pt> : Points (default)

    Example: PLC_PRG.iFontHeight <pt>

    Code: iFontHeight : INT := 12;

  • <px> : Pixels

    Example: PLC_PRG.iFontHeight <px>

    Code: iFontHeight : INT := 19;

7c176957de700f33c0a8640e01e31860_6109690251550cb0c0a86463097e7de3 : If you click in the value field, a drop-down list opens on the right for setting the unit.

Tip: The font size is specified in points (example: Arial 12). Use points when the variable font size should match a font, for example if a font is set in the property Text property ‣ Font.

Flags

Variable (DWORD). Contains the flags for displaying fonts.

Flags:

  • 1: Italics
  • 2: Bold
  • 4: Underline
  • 8: Strikethrough

Note: You can combine the font displays by adding the coding of the flags. For example, a bold and underlined text: PLC_PRG.dwFontType := 6;

character set

Variable (DWORD). Contains a character set number for the font.

The selection of character set numbers corresponds to the Script setting of the standard Font dialog box.

Color

Variable (DWORD). Includes the color of the text.

Example: PLC_PRG.dwColorFont:= 16#FF000000;

Flags for text alignment

Variable (integer data type). Contains the coding for text alignment.

Example: PLC_PRG.dwTextAlignment.

Coding:

  • 0: Top left
  • 1: Horizontal center
  • 2: Right
  • 4: Vertical center
  • 8: Bottom

Note: You can combine the text alignments by adding the coding of the flags. For example, a vertical and horizontal centered text: PLC_PRG.dwFontType := 5;

Note

Fixed values for displaying texts are set in Text properties.

See also

Element properties ‘Color variables’

The properties contains variables for dynamically controlling variables.

Toggle color

Dynamic control of toggle color

  • With variable (BOOL)

    Example: prgA.bIsAlarm

    FALSE: Element is displayed with the color defined in the Color property.

    TRUE: Element is displayed with the color defined in the Alarm color property.

  • With placeholder <toggle/tap variable> Then the toggle color is no longer controlled with a separate variable, but the an existing variable provided as a control variable of the property Input configuration ‣ Tap or the property Input configuration ‣ Toggle.

    Requirement: A variable is assigned in one of these properties. If a variable is assigned in both properties, then the variable in Input configuration ‣ Tap used.

    You can remove the placeholder by selecting it and pressing Del. Then the 7c176957de700f33c0a8640e01e31860_ef4de0a04760a8eac0a8640e013d05ca symbol appears in the value field.

7c176957de700f33c0a8640e01e31860_ef4de0a04760a8eac0a8640e013d05ca : Click the command icon to insert the placeholder <toggle/tap variable>.

Normal state The normal state is in effect if the variable in Color variables ‣ Toggle color is not defined or it has the value FALSE.
Frame color

Variable (DWORD) for the frame color

Example: PLC_PRG.dwBorderColor

Fill color

Variable (DWORD) for the fill color

Example: PLC_PRG.dwFillColor

Alarm state The alarm state is in effect if the variable in Color variables ‣ Toggle color has the value TRUE.

See also

Element property ‘State variables’

The variables control the element behavior dynamically.

Invisible

Variable (BOOL). Toggles the visibility of the element.

TRUE: The element is not visible at runtime.

Deactivate inputs

Variable (BOOL). Toggles the operability of the element.

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

See also