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Version Information
Release Notes, Update information, Certifications and Frequently Asked Questions.
Patch Release Notes 3.20
The release notes of all patches for WinCC OA Version 3.20.
3.20.8

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
  An overview of WinCC OA's certified standards
- 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.

3.20.8

Patches for WinCC OA are more than just bug fixes. 

Continuous feature integration makes it possible to implement enhancements in several different categories into our product. To keep your software up to date, make sure to download and install the newest patch. 

NGA

"Store & Forward": DirectRead in a distributed system is now possible even when that system is not currently connected.
It is now possible to include the _alert_hdl.._panel_param attribute in historical queries that are processed by the DB backend.

OPC UA

OPC UA Client: With a new config entry [opcua] sessionName, the OPC UA Client’s session name can now be individually configured.
OPC UA Server: Several new configuration options for certificate handling have been introduced. In cases where communication with a client fails due to invalid or untrusted client certificates, these options allow the deactivation of specific security checks. We recommend not to permanently disable those checks.

Node.js

Node.js has been updated to version 20.19.3.

The patch is available for download on the SIMATIC WinCC Open Architecture World: https://www.winccoa.com/downloads/category/wincc-oa-320.html

Revised technical Services available

We are particularly pleased to inform our customers and partners about a revised and simplified service philosophy, which is now aligned with many other products of the SIMATIC Software Product Portfolio.

Please refer to our support page for more details.