Version Information
Release Notes, Update information, Certifications and Frequently Asked Questions.
Concepts
Your first step into modern and powerful process visualization.
Deployment
Topics you need to know before using WinCC OA.
Security
Go beyond the norm in cybersecurity.
Engineering
Powerful tools for easy or complex engineering tasks.
Data Management
Classify, structure and archive your data.
Business Logic / Control
Endless possibilities in data processing for your projects.
- Introduction to CTRL
  An introduction to the product's own programming language Control(CTRL).
- Control Classes
  The overview of classes available in Control.
- Types of Control Functions
  An overview of the types of functions distinguished within Control.
- Control graphics
  - Graphics objects
  - Attributes of graphics objects
  - Arc
  - AttentionEffect EWO functions
  - Bar trend
  - BarChart3D EWO
  - Button
  - Calendar
  - Cascade
  - Chart.ewo
  - Checkbox
  - Clock
  - Combobox
  - DateTimeEdit EWO functions
  - DialGauge EWO
  - DoubleSpinbox EWO
  - DpTreeView
  - DpTypeView
  - Embedded module
  - Frame
  - GIS Viewer EWO
    WinCC OA GIS Viewer provides the cartographic representation of objects in WinCC OA. This new feature provides numerous advantages, particularly in geographical distributed systems, like in Water, Traffic, Oil & Gas or Energy.
  - Label Functions
  - Layoutgroup functions
  - LCD number
  - Maps Widget - Properties and Functions
  - Panel functions
  - PDF Viewer EWO
  - PictureFlow EWO functions
  - Pipe
  - Polyline
  - Primitive text
  - Progress bar
  - Radio box
  - Rectangle
  - Reference Functions
  - Scheduler.ewo
  - Selection list
  - Slider
  - Spin button
  - Splitter
  - Tab
  - Table
    The available functions of the Table object.
  - TextEdit
  - Text field
  - Thumb wheel
    - "acceptDrops"
      Specifies whether drop events are enabled for this object.
    - "cogCount"
      This attribute sets the space between the groove.
    - "contextMenuPolicy"
      Defines how the respective widgets shows the context menu.
    - "events" (obsolete)
      Gets all events that are available for a shape. Obsolete, use scriptNames instead.
    - "focus"
      The attribute "focus"; returns TRUEif the object has the focus.
    - "font"
      Sets the font of an object.
    - "frameShadow"
      The attribute "frameShadow" specifies the frame effect (3D effect) of an object (textEdit, progress bar, tree widget, thumb wheel, LCD number, DpTreeView or zoom navigator).
    - "frameShape"
      The attribute "frameShape" sets the style of an object frame (textEdit frame, a thumb wheel, a tree widget, a zoom navigator , an LCD number or a progress bar).
    - "frameWidth"
      The attribute "frameWidth"; returns the width of a frame (a textEdit, a tree widget, a zoom navigator, LCD number, a thumb wheel etc.)
    - "height"
      The attribute "height" returns the height of an object (textEdit, progress bar, tree widget, zoom navigator, LCD number or a thumb wheel.)
    - "invertedAppearance"
      Changes the direction of the slider into top = minimum value and bottom = maximum value.
    - "invertedControls"
      Defines if the key and wheel events of the slider shall be inverted.
    - "isActiveWindow"
      The attribute "isActiveWindow"; returns TRUE if this widget is the active window, otherwise FALSE.
    - "layoutDirection"
      Defines the widget's layout direction.
    - "limitedDrag"
      Defines whether drags out of the thumb wheel widget will still turn the wheel.
    - "lineWidth"
      The attribute "lineWidth"; sets the width of an object (a textEdit, progress bar, tree widget, zoom navigator, LCD number or a thumb wheel (frame) ) line.
    - "margin" - obsolete with version 3.12
      The attribute "margin" specifies the distance between the innermost pixel of the frame and the outermost pixel of the rectangle inside the frame.
    - "maximum"
      Defines the upper limit of the value range.
    - "maxValue";
      The attribute "maxValue"; sets the maximum value, which is returned when a slider is moved to maximum position. In case of thumb wheel the thumb wheel is moved between the minimum and maximum value.
    - "minimum"
      Defines the lower limit of the value range.
    - "minValue"
      The attribute "minValue"; sets the minimum value, which is returned when a slider is moved to minimum position. In case of thumb wheel the thumb wheel is moved between the minimum and maximum value.
    - "orientation";
      Sets the orientation of a slider, a thumb wheel, a progress bar or a spacer.
    - "ownCursor";
      The attribute "ownCursor" returns TRUE if an object (for example a textEdit, a tree widget, a slider, a zoom navigator or a thumb wheel) uses its own cursor. If the value is FALSE, the object uses its parent widget`s cursor.
    - "pageStep";
      Specifies the step of a slider when pressing PageUp / PageDown or clicking with the mouse on the slider.
    - "singleStep"
      Defines the value for a step if you press the arrow keys.
    - "sliderDown"
      This property shows whether the slider is currently pressed down by the mouse.
    - "sliderPosition"
      Shows the current slider position.
    - "tooltipDuration"
      Specifies how long a tooltip is shown.
    - "transmissionRatio"
      The attribute transmissionRatio specifies the ratio between the thumb-wheel and the value range.
    - "underMouse"
      Returns TRUE if a widget (textEdit, slider, thumb wheel, tree widget, zoom navigator, LCD number or progress bar) is beneath the cursor.
    - "updatesEnabled"
      This attribute specifies whether updates of a widget (for example, a textEdit, slider, progress bar, zoom navigator, LCD number or thumb wheel) have been enabled.
    - "value"
      Sets the current value of a thumb wheel.
    - "wrapsAround "
      Specifies that when the minimum of a thumb wheel is reached, the thumb wheel starts from the maximum.
    - "x", "y"
      The attributes x and y return the coordinate of an object (e.g. a textEdit, a progress bar, a slider, a zoom navigator, an LCD number or a thumb wheel). x returns the X coordinate of an object. y returns the Y coordinate of an object.
  - ToggleSwitch EWO
  - Tree widget
  - Trend Functions
  - VideoPlayer.ewo
  - WebView EWO
    All events and functions, specifically available for the WebView EWO.
  - Zoom Navigator
    Functions available for the Zoom Navigator widget.
- CONTROL Functions
- CtrlExtension
  The CtrlExtension allows the addition of custom C++ code.
- CTRL Debugger
  You can use the CTRL debugger to debug the Control programming language. The debugger can be used via its own panel, which also enables the monitoring and setting of variable values during the execution of a script.
- SQL in CONTROL
  The database functions enable you to quickly carry out value queries on data points and elements.
- WinCC OA JavaScript Manager for Node.js
  The WinCC OA JavaScript Manager for Node.js is a manager that allows for the integration of the TypeScript/JavaScript runtime environment Node.js® into WinCC OA.
- API Manager
  The WinCC OA API (Application Programming Interface) offers a number of functions adding special Managers to this process control system.
Data Visualization
User interfaces, Trends and Reports for every purpose and device.
Southbound Interfaces
The process connection to the actual machines/sensors.
Northbound Interfaces
Your portal to the cloud or supervising systems.
Web Connectivity / Network Interfaces
Data exchange, APIs and web technologies
User Management
All about authorization, authentication and login-customization.
Availability
How to get your system uptime to the maximum.
Reporting
Create state of the art project reports without limits.
Addons
Useful tools and enhancements for special demands.
Reference Tables
Detailed and extensive content for special project adaptation.
Videos & Tutorials
Explore the capabilities of WinCC OA with our carefully selected collection of video tutorials and guides.
Documentation
Basic information about terms and functions within the documentation.
Support & Services
An experienced team of support agents, consultants and trainers are ready to facilitate active partnerships with our customers, so they can profit from our comprehensive service.
Disclaimer
A brief clarification of liability exclusions or legal notices.

"maximum"

Defines the upper limit of the value range.

Synopsis

shape.maximum(float limit);

Parameters


Parameter	Description
limit	Upper limit of the value range

Description

The value range which is displayed by the EWO can be specified. "maximum" defines the upper limit of the value range.

Assignment

DialGauge EWO