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Version Information
Release Notes, Update information, Certifications and Frequently Asked Questions.
Release Notes Version 3.20
All the new features and changes in WinCC OA V3.20.
Connectivity

Version Information
Release Notes, Update information, Certifications and Frequently Asked Questions.
- What is WinCC OA?
- Release Notes Version 3.20
  All the new features and changes in WinCC OA V3.20.
- Patch Release Notes 3.20
  The release notes of all patches for WinCC OA Version 3.20.
- Notes for Upgrading a WinCC OA Project
  Important steps and information to consider when upgrading an existing WinCC OA project to the latest version.
- WinCC OA Version Incompatibilities
  A list of all incompatibilities that needed to be introduced between different versions of WinCC OA.
- Product Certifications
  Certificates held by ETM – A Siemens Company.
- Frequently Asked Questions
  A collection of common customer 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.
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.

Connectivity

Enhanced Feature Range Of Drivers

OPC UA

Associated values (alarms & events) can now be written/processed within WinCC OA.
- Choose flexibly which ones you want to use.
- Support of JSON/Structures make it ideal for IT/OT convergence.
Detailed description of how to exchange data with WinCC Unified based on OPC UA.
The OPC UA Server provides access to historical alarms and events (HA).

S7 PLC Discovery

Discover every new S7 device in your network and establish a driver connection to it more quickly.
Only available on Linux platforms.

BACnet

Upgrade from Operator Workstation(OWS) to Advanced Workstation (AWS) Profile.
BACnet/SC for secure connections
Both features are certified by BACnet International.

Enhanced Driver Diagnostics

Address syntax and availability check for faster problem detection resulting in reduced engineering efforts.
New diagnostic screen is also included in address configuration.
See chapter Driver Diagnostic.

Ethernet/IP

Redundant connections to a PLC are now supported.