3.21.4

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. 

Web Server

  • The built-in web server can now be extended with custom endpoints at runtime without requiring a restart. This enables customers to add or modify REST APIs on a running system, reducing downtime for web-based integrations.

Driver

  • DNP3: The DNP3 driver now supports automatic polling of data classes without manual scripting, which creates more reliable data acquisition with less configuration effort in utility/SCADA environments.

Video OA

  • Camera network interface priorities can now be configured via mass configuration. Customers managing large camera installations can efficiently set failover preferences across hundreds of devices in one operation.

NGA

  • NGA database upgrade scripts have been adapted to ensure a smooth backend project upgrade process, helping users upgrading from earlier versions to minimize manual database intervention during migration.

Node.js

  • The dpRename() function is now available in the Node.js API.
  • A new npm package scaffolds TypeScript manager projects with proper structure and configuration.

CTRL

  • WinCC OA now supports secure file transfers via SFTP, eliminating the need for less secure FTP or external tooling.

System Dashboard

  • The System Dashboard now displays the security status of the pathTraversalRestricted config, allowing customers immediate visibility into whether their system is protected against directory traversal attacks.

General

  • System names can now be referenced via a placeholder variable. Customers benefit from easier project templating and configuration reuse across multiple installations without manual renaming.
  • The API client, WCD, and Angular Dashboard have been updated to newer versions.

The patch is available for download on the SIMATIC WinCC Open Architecture World: https://www.winccoa.com/downloads/category/wincc-oa-321.html

Support & Services

Please refer to our support page for more details on Basic Support, Extended Services and Training.