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OPC Historical Data Access
open-in-new
<h2 id="see-also">See also</h2> <ul><li><a href="/facts/OLE_for_process_control/AvudB9cl">OLE for process control</a></li> <li><a href="/facts/OPC_Foundation/BTbvjVMu">OPC Foundation</a></li> <li><a href="/facts/OPC_Data_Access/M9eIesqL">OPC Data Access</a></li></ul> <h2 id="external-links">External links</h2> <ul><li><a href="http://www.opcfoundation.org/">OPC Foundation</a></li> <li><a href="https://opcfoundation.org/developer-tools/specifications-classic/historical-data-access/">OPC Historical Data Access specification</a></li></ul>