What's New in Visual OPC .NET 1.2
Version 1.2 has not just added bug fixes, it has also added some useful
features to the Visual OPC .NET tool. These new features are listed below.
| Threading Protection |
Access to runtime data is thread protected to ensure it's integrity is not
compromised. |
| Asynchronous Write Support |
Option parameter for the WriteMethod
(Synchronous or Asynchronous) is available for all Visual OPC .NET components.
This parameter determines if a write operation will be handled synchronously or
asynchronously. The Visual OPC .NET has a default implementation for handling
asynchronous calls by ensuring that it has completed within a certain amount of
time. Otherwise it will fire a WriteTimeout event. |
| Write Timeout Support |
Default timeouts may be set for all Write operations regardless of whether it
is made synchronously or asynchronously. |
| Improved Help Documentation |
Nearly 100 new pages of documentation has been added to to the help. New
sample code has been added to the help in both C# and VB.NET. |
| Browse OPC Server Form |
The SelectServerForm class
is now a public class that can be used to browse and select servers on the
local machine and network. |
| Browse OPC Items Form |
The BrowseItemsForm is
now a public class that allows you to browse and select OPC items on a
particular machine. |
| Improved Browsing Support |
New classes, properties, and methods were added to better support the
browsing of the OPC Server address space. |
| Update Rate Property |
All Visual OPC .NET components now support the UpdateRate property. |
| Bug Fixes |
Of note, the following items were fixed:
-
Changing the Active property of a connected OPC item during runtime now works.
-
Removing Groups during runtime now works in all cases.
-
Browsing Server Address Space now works even if the OPC server does not support
the BROWSETO flag.
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