Main Content
OPC Foundation HDA Reference
OPC Foundation standards regarding OPC HDA item attributes
These topics provide descriptions of standard OPC Historical Data Access quality values and item attributes.
Topics
OPC HDA quality values identify the quality or integrity of retrieved historical data.
Standard attributes of OPC HDA items, including comparison of MATLAB® and OPC server (COM variant) data types
Select a Web Site
Choose a web site to get translated content where available and see local events and offers. Based on your location, we recommend that you select: .
Select web siteYou can also select a web site from the following list:
Americas
- América Latina (Español)
- Canada (English)
- United States (English)
Europe
- Belgium (English)
- Denmark (English)
- Deutschland (Deutsch)
- España (Español)
- Finland (English)
- France (Français)
- Ireland (English)
- Italia (Italiano)
- Luxembourg (English)
- Netherlands (English)
- Norway (English)
- Österreich (Deutsch)
- Portugal (English)
- Sweden (English)
- Switzerland
- United Kingdom (English)
