OPCHDA.NET

OPC historical data access clients can be developed in .NET with C# or VB.NET. The OPCHDA.NET assembly provides classes and methods that take advantage of the .NET features and make OPC HDA Server access real simple and also very efficient.   read more...
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Evaluation License
SKU:HDANW-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:HDANW-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: $855.00
Company Site License
SKU:HDANW-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: $2,395.00
Company Site License with Source
SKU:HDANW-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: $3,395.00
Service Subscription Single Developer License
SKU:HDANW-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: $345.00
Service Subscription Site License
SKU:HDANW-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
Service Subscription Source License
SKU:HDANW-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: $895.00

OPCHDA.NET      Product DescriptionReference ManualVersion Log

OPC HDA .NET Client SDK for C# and VB.NET

OPC HDA (Historian) .NET Client SDK for C# and VB.NET

You can develop OPC Historical Data Access (HDA) clients in .NET (C# or VB.NET) without having to think about the OPC DCOM interface. The OPCHDA.NET wrapper assembly provides classes and methods that take advantage of the .NET features and make OPC HDA Server access real simple and quick.

  • A .NET method is provided for each OPC HDA specified function. The data is converted to/from .NET data types. The .Net wrapper functions are highly optimized and work in 32-bit and 64-bit operation.
  • Additional methods are included as an upper layer to make application development easier and quicker.
  • A test client and several sample clients are supplied in C# and VB source code.
  • OPCHDA.NET can be used for stand-alone OPC HDA clients or combined with OPCDA.NET and/or OPCAE.NET for OPC DA / HDA / AE client applications.
Accessing UA Servers
OPCHDA.NET with the OPCHDA.NET-UA option enables clients to access OPC UA servers and Classic OPC HDA servers through the same API. The server ID (ProgID or URL) determines the type of serve accessed.
No external converters are required and DCOM is completely eliminated.
OPCHDA.NET UA option
 
The HDA Test Client application can be used as a diagnostic tool to see what OPC HDA servers are available and if they can be accessed. The test client can also be used as a development helper tool. The server can be browsed to get the items supported by the server and the item names can be copied into the code of a client being developed. All OPC HDA 1.2 functions can be called interactively to check if the values are returned as expected. This may help determine if an unexpected behavior has to searched in the client being developed or somewhere else.

 

To make the application test environment complete there is a Test Server included in the OPCHDA.NET package. This server is based on the evaluation version of the  Advosol HDANS Server Toolkit and is tested for OPC HDA V1.2 compliance. It can be adapted to meet the application needs. There is for each item a text file with the data. These files can easily be modified and files can be added to have additional items available. As a product evaluation this server has a 30 minute run-time restriction. For software tests this is rarely a restriction since test runs are usually shorter.

 

Requirements

  • Windows 7 (or newer) or Windows Server 2003 (or newer) 
  • .NET 4.x
  • Visual Studio 2010 or newer with C# or VB.NET

 

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