OPCDA.NET-UA

The OPCDA.NET-UA component extends the OPCDA.NET Client SDK for C# and VB.NET with an OPC UA wrapper. The application can access OPC DA and OPC UA servers through the same API.
Users of the OPCDA.NET Client Component can upgrade their products to support OPC UA without application code changes.   read more...
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Evaluation License
SKU:DAWUA-EV
The Evaluation License grants the non-exclusive right to use the software for evaluation and testing purposes only. The software is time restricted to run for only 30 minutes at a time. Please read the license agreement.
Price: $0.00
Single Developer License
SKU:DAWUA-DL
The Single Developer License grants one user the non-exclusive right to use the software. The license includes a subscription for 90 days. Please read the license agreement.
Price: $795.00
Company Site License
SKU:DAWUA-SL
The Company Site License grants multiple users at one development location the non-exclusive right to use the software. The license includes a subscription for 90 days. Please read the license agreement.
Price: $1,995.00
Company Site license with Source Code
SKU:DAWUA-SC
The Company Site License with Source grants multiple users at one location the non-exclusive right to use the software. Complete source code is included. The license includes a subscription for 90 days. Please read the license agreement.
Price: $3,995.00
Service Subscription Single Developer License
SKU:DAWUA-SVD
The Subscription Renewal extends the subscription of the underlying license for a 12 month period from the subscription expiration date (not the purchase date). Please read the license agreement.
Price: $245.00
Service Subscription Company Site License
SKU:DAWUA-SV
The Subscription Renewal extends the subscription of the underlying license for a 12 month period from the subscription expiration date (not the purchase date). Please read the license agreement.
Price: $695.00
Partial Subscription Company Site License
SKU:DAWUA-SV8
The Service Subscription entitles the owner to download product updates released within the subscription period and get free phone/email product support. The service subscription extends the subscription period for 8 month from the expiring date of the previous subscription.
Price: $520.00
Service Subscription Source License
SKU:DAWUA-SVS
The Subscription Renewal extends the subscription of the underlying license for a 12 month period from the subscription expiration date (not the purchase date). Please read the license agreement.
Price: $1,195.00

OPCDA.NET-UA      Product DescriptionReference ManualVersion Log

UA option for the OPCDA.NET Client SDK for C# and VB.NET

OPC UA option for the OPC DA Client SDK for C# and VB.NET

The OPCDA.NET-UA component extends the OPCDA.NET Client Component with an OPC UA (Unified Architecture) wrapper. The application can access OPC DA and UA servers through the same API.
OPCDA.NET based client applications become OPC UA clients without having to be modified. The applications only need to be compiled with a reference to the OPCDA.NET component with the UA option.
Depending on the server ID (url), the server is either accessed as an OPC DA DCOM server or an OPC UA server.
For UA server access DCOM is completely eliminated because the UA handling is within the client process. There is no external DCOM to UA proxy server involved. The client application acts as a native OPC UA client.
Without additional application development effort the application can access DCOM OPC DA server and OPC UA servers.

OPCDA.NET-UA Advantages

  • The OPCDA.NET-UA component enhances existing OPCDA.NET based OPC DA client applications with the capability to access OPC UA servers.
    No code changes are required in the OPC DA application. Only the OPCDA.NET assembly references need to be changed to the assembly version with UA support and the OpcDaNetUaOption.dll needs to be additionally referenced.
  • New client applications can be developed to support access to the widely installed classic OPC DA servers as well as OPC UA servers.
    For UA server access DCOM usage is completely eliminated, unlike solutions with an external UA proxy server.

With the client application able to access OPC DA and OPC UA servers there is no need for external converters. This simplifies the installation, the configuration and the maintenance of the application. No converter (UA proxy) module needs to be installed, configured and maintained. There is one less component that may fail.

Top performance is achieved. The application communicates directly with the server. For OPC DA server access there is an efficient .NET wrapper that handles the DCOM interface. For UA server access the .NET code performs the WCF based UA communication through the OPC UA communication stack.

 

OPCDA.NET-UA Limitations

The UA server access is limited to the Data Access (DA) profile of the UA server. The Historian (HDA) and Alarm&Event (AE) features of the UA server cannot be accessed through the OPC DA client interface. 
If also HDA functionality is required then the OPCHDA.NET / OPCHDA.NET-UA products need to be used in combination with OPCDA.NET /OPCDA.NET-UA.
If also A&E functionality is required then the OPCAE.NET / OPCAE.NET-UA products need to be used in combination with OPCDA.NET /OPCDA.NET-UA.

 

OPC UA specific Features

The application can use OPC UA specific features by directly using the OPCDA.NET-UA classes.
Such features are:

  • Endpoint discovery and endpoint selection
  • UA methods discovery and calls

 

OPCDA.NET-UA Feature Summary

  • .Net applications can access OPC DA and OPC UA servers through the same API
  • All OPCDA.NET classes can access DA and UA servers.
  • The server type is determined by the server name (ProgID or URL).
  • The UA configuration is defined in an additional configuration XML file.
  • UA specific configuration and testing tools are provided.
  • Detailed UA errors can be logged to file or the application can define a callback method for UA error/trace information.
  • High performance for DA and UA server access.
  • Pure .NET code that runs in 32-bit or 64-bit for DA and UA server access.
  • UA Methods handling

 

Requirements

  • OPCDA.NET Professional Edition V11.0 or newer
  • Windows 7, 8.x, 10 or Windows Server 2008, 2012, 2016    32 or 64bit
  • .NET 4.x
  • Visual Studio 2010,2012,2013,2015 or 2017, C# or VB.NET
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