OPC HDA Client Toolkit

OPC HDA Client Toolkit is a software development toolkit designed to simplify the integration of OPC Historical Data Access (HDA) client functionality into custom Visual Basic and C++ applications. It provides an OPC HDA client API, a Visual Basic wrapper, and a C++ API to support flexible development across these programming environments.

The toolkit implements the required and optional interfaces of the supported OPC HDA specifications, enabling applications to communicate with OPC HDA servers and access industrial historical data. Developers can retrieve raw historical records and processed data, supporting applications for process analysis, reporting, and historical data management.

By abstracting the complexities of COM programming and the OPC HDA specification, the toolkit reduces implementation effort and allows developers to focus on application-specific functionality. It also supports updating historical data records, helping applications manage historical information where supported by the connected server.

Designed for industrial software developers and system integrators, OPC HDA Client Toolkit provides a foundation for integrating historical process data access into custom industrial applications.