5.2.6.1 DAIS::AlarmsAndEvents::Source Overview

   A source is a specialization of a node and is contained by areas. A source represents an object that generates alarms and events. A source may have source conditions. The find methods in the interface correspond to the IOPCEventAreaBrowser with the filter type parameter set to OPC_SOURCE. The interface also implements the following OPC methods:

• IOPCEventServer::TranslateToItemIDs

• IOPCEventServer::EnableConditionBySource()

• IOPCEventServer::DisableConditionBySource()

   Figure 5-10 DAIS alarms and events source IDL in UML