Graybox OPC HDA Auto Wrapper

This software review is focused on the OPC HDA Auto Interface, a tool designed to work as a wrapper for existing OPC Historical Data Access Custom Interface Servers. Its primary goal is to provide an automation-friendly mechanism to the functionality provided by the custom interface.

The automation interface is designed to offer nearly all of the functionality of the required and optional interfaces in the OPC Historical Data Access Custom Interface. If the custom server supports the interface, the functions and properties at the automation level will work seamlessly. However, it is worth noting that automation interfaces typically do not support optional capabilities in the same way that the custom interface does.

If the underlying custom interface omits some optional functionality, then the corresponding automation functions and properties will exhibit some reasonable default behavior. In essence, the graybox OPC HDA Auto Wrapper is essentially a DLL module that has all of the necessary OLE objects implemented within it.

After registering this module, users can expect to be able to use any OPC HDA server with almost any OLE enabled programming language. This includes popular languages such as Visual Basic, VBA, and many others. Overall, if you are looking for a reliable and highly functional OPC HDA Auto Interface, this tool is definitely worth considering.