Talk:Opc server

From Wikipedia, the free encyclopedia

What is an historian? The Article mentions it as an OPC-compliant application. I could takt a guess that it is some kind of monitoring software that stores the changes that were made to the data. But that is only a guess. Maybe related to OPC Historical Data Access ?

An OPC historian is an application that retrieves data from an OPC server and stores it for later retrieval, often providing an OPC HDA interface to do so, though not always - it can also provide a proprietory interface BananaFiend (talk) 09:23, 9 April 2008 (UTC)