What's new in QuickOPC 2020.1

See also: Versions; Previous version: What's new in QuickOPC 2019.2

Internal version number: 5.57

Key changes:

• MQTT transport in PubSub

Targeting

• Operating Systems: Removed Windows 7 (x86 or x64) with SP1 from the list of supported systems.
• Operating Systems: Windows 10 (x86 or x64) versions 1607 and 1703 are no longer supported.
• .NET Runtimes: Added support for .NET Core 2.1.13-2.1.14.
• .NET Runtimes: Added support for .NET Core 3.0.0-3.0.1.

Component Improvements

• Added support for MQTT transport protocol mapping in OPC UA PubSub.
• Added IEasyUASubscriber.SubscriptionResolved event, which allows the developer to inspect and/or modify the resolved dataset subscription descriptor before it is used by the component.

Component Refactorings

• Replaced the numeric ErrorCode property by a string property ErrorId. This affects, among others:
  • The OperationResult and derived classes.
  • The OperationEventArgs and derived classes.
  • The ResultArguments and derived classes (consequently, Live Binding, and connectivity model in general).
  • The formatting of such objects.
  • Mapping kinds (in Live Mapping and Live Binding).
  • Payload classes in StreamInsight Option.

Tools and Online Services

• License Manager: Improved error messages given when reading the license from file fails.
• License Manager: Added version number to the main window caption.
• OpcCmd Utility: It is now possible to specify command-line argument using a response file ('@' syntax).
• UADemoPublisher: It is now possible to specify command-line argument using a response file ('@' syntax).

Examples

• Added many examples in VB.NET, especially for PubSub.
• Added large number of examples in PHP.
• Added specialized Object Pascal (Delphi) examples showing how to subscribe to, or repeatedly read many variables from Softing OPC UA .NET Demo Server.
• Added VBScript example with unsolicited user interaction.
• Consistently show proper error handling practices in PHP and VB6 examples.

Documentation and Help

• Added many examples that were installed only on the disk to the documentation.
• Included parts of conceptual text right into the corresponding reference documentation.