Graybox OPC Automation Wrapper description
A DLL-module, in which all of the necessary OLE-objects are implemented

The fundamental design goal is that OPC DA Auto interface is intended to work as a 'wrapper' for existing OPC Data Access Custom Interface Servers providing an automation friendly mechanism to the functionality provided by the custom interface.

The automation interface will provide nearly all of the functionality of the required and optional Interfaces in the OPC Data Access Custom Interface. If OPC Data Access Custom server will support the interface, all the properties and functions at the automation level will surely work.

Automation interfaces generally 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.

Graybox OPC Automation Wrapper is the DLL-module, in which all of the needed OLE-objects are implemented. After registering this module, you will be able to use any OPC Data Access Server with almost any OLE enabled programming language (Visual Basic, VBA, etc).