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WinCC OA Documentation
WinCC OA Documentation
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  • Version Information
  • Concepts
  • Deployment
  • Security
  • Engineering
  • Data Management
  • Business Logic / Control
  • Data Visualization
  • Southbound Interfaces
  • Northbound Interfaces
  • Web Connectivity / Network Interfaces
  • User Management
  • Availability
  • Reporting
  • Addons
  • Reference Tables
  • Videos & Tutorials
  • WinCC OA Documentation
  • Disclaimer
  1. Home
  2. Business Logic / Control

    Endless possibilities in data processing for your projects.

  3. Types of Control Functions

    An overview of the types of functions distinguished within Control.

  4. Functions for blob variables
  • 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 Function - User Administration
      • Database functions
      • File functions
      • Data point functions
      • Selection and configuration dialogs
      • Vector / Dynamic arrays
      • Error functions
      • Window functions
      • Functions for bit32/bit64 variables
      • Functions for blob variables
      • Graphics functions
      • Communication functions
      • Multilingual functionality
      • Mapping functions
      • Mathematical functions
      • Multilingual functionality
      • Alert handling
      • MindSphere Connector Functions
      • Project administration functions
      • Query functions
      • Redu/Dist functions
      • Semaphore Functions
      • String functions
      • Threads
      • Vector / Dynamic arrays
      • Administration of managers, modules and panels
      • Waiting Control functions
      • XML Control Extension
      • Time functions
      • Miscellaneous functions
      • Reference - Focus Policy
      • Help Viewer Functions

        Available Functions for the Help Viewer.

    • Control graphics
    • 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.

Functions for blob variables

These functions support the operations with blob variables.

blobAppendValue() blobGetValue() blobRead()
bloblen() blobSetValue() blobWrite()
blobZero()

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