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
  - Panel functions
  - Reference Functions
  - Arc
  - AttentionEffect EWO functions
  - Bar trend
  - BarChart3D EWO
  - Button
  - Chart.ewo
  - Calendar
  - Cascade
  - 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
  - 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
  - TextEdit
  - Text field
  - Thumb wheel
  - ToggleSwitch EWO
  - Tree widget
  - Trend
  - VideoPlayer.ewo
  - WebView EWO
    - "back"
      This function loads the previous URL in the history list.
    - execJsFunction()
      The function allows to call a JavaScript function from within the WebView EWO JavaScript code directly from CTRL.
    - execJsFunctionDyn()
      The function allows to call a JavaScript function from within the WebView EWO JavaScript code directly from CTRL.
    - "forward"
      This function loads the next URL in the history list.
    - "ignoreSslErrors"
      This function allows the WebView Ewo to ignore SSL Errors.
    - "linkDelegationPolicy"
      This property controls the behaviour of the WebView Ewo when a link is clicked.
    - "load"
      This function loads the specified website.
    - "loadSnippet"
      Using this function an HTML page for the JavaScript Interface can be loaded within the WebView EWO.
    - msgToJs()
      This function is used to transfer data from Control to the JavaScript interface of the WebView EWO as response to the toCtrl() function.
    - "persistentCookies"
      This function controls the storing of cookies for the Webview EWO.
    - "reload"
      This function reloads the current page.
    - "setAttribute"
      This function allows to enable or disable several options per WebView instance.
    - "stop"
      This function stops the loading of the current page.
  - 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.
- 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.
WinCC OA Documentation
Basic information about terms and functions within the documentation.
Disclaimer
A brief clarification of liability exclusions or legal notices.

WebView EWO


Available functions	Description
"back"	Loads the previous URL in the history list.
execJsFunction()	Calls a JavaScript function from within CTRL with multiple separate parameters.
execJsFunctionDyn()	Calls a JavaScript function from within CTRL with passing the parameters as a list.
"forward"	Loads the next URL in the history list.
"ignoreSslErrors"	Ignores the specified SSL errors
"linkDelegationPolicy"	Controls the behaviour when a link is clicked.
"load"	Loads the specified website.
"loadSnippet"	Loads an HTML page.
msgToJs()	Sends a message to JavaScript interface
"persistentCookies"	Controls the cookie storage.
"reload"	Reloads the current page.
"setAttribute"	Allows you to enable or disable several options.
"stop"	Stops the loading of the current page.