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.
- Update Release Notes
  - All Patch Release Notes
    The release notes of all patches for WinCC OA Version 3.20.
  - 3.20.2
  - 3.20.1
  - 3.20.3
- 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.
WinCC OA Documentation
Basic information about terms and functions within the documentation.
Disclaimer
A brief clarification of liability exclusions or legal notices.

3.20.2

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. 

Highlights

Drivers

IEC61850: A new config entry has been created to fix an issue that may infrequently cause the driver to run into timeout.
SNMP: The max-repetitions number of an individual SNMP GetBulk request can now be independently configured.

Node.js

Several CNS methods have been added to the WinCC OA JavaScript Manager for Node.js.

CTRL

A new CTRL class "ReduMonitor" has been introduced that will make sure code is executed without data loss in the redundant CTRL manager on a Redu system’s active server. This functionality is helpful if the CTRL script is communicating to a single external database or service.

Screen Recorder

All Modules and Child Panels will now show a red frame to indicate the inputRecorder is currently recording. This can be especially helpful when it comes to the login panel, to make sure not to inadvertently record the password entry.

Security

Security for our HTTP server has been further increased with the full Server Hardening option, which completely disables code transfer capability. This feature is especially useful for customers who only use ULC-UX or Remote UI, as it allows for the use of the SSA feature without fear of potentially exposing unwanted data.

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