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Your first step into modern and powerful process visualization.
DemoApplication
The WinCC OA DemoApplication is a simple WinCC OA project that implements a number of process control and visualization tasks from different sectors of the automation industry as examples.
Datapoints
Direct Interrogation

Version Information
Release Notes, Update information, Certifications and Frequently Asked Questions.
Concepts
Your first step into modern and powerful process visualization.
- Getting Started - Tutorial
  A tutorial that describes the basics of technology and use of on the basis of practical examples.
- DemoApplication
  The WinCC OA DemoApplication is a simple WinCC OA project that implements a number of process control and visualization tasks from different sectors of the automation industry as examples.
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.
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.
eLearning
Build Your Expertise Step by Step
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.
SIMATIC WinCC OA World
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Direct Interrogation

Via the panel Direct Interrogation you can query datapoint values. The panel contains the following tabs:

Figure: Panel "Direct Interrogation" - Common tab

Direktabfrage

Figure: Panel "Direct Interrogation" - Details tab

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Figure: Panel "Direct Interrogation" - Archive tab

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Figure: Panel "Direct Interrogation" - Trend tab

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The option Set Value opens the same panel. An additional tab "address" is, however, shown for the "Set Value" panel.