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Processed Data

Read data from an OPC server that has been processed by the server

Functions

readAtTime Read data from an OPC HDA server at specified times
readProcessed Read server-aggregated data from an OPC HDA server
getDescription Get description of OPC HDA aggregate type or item attribute
getIDFromname Translate OPC HDA aggregate type or item attribute name to numeric identifier
getIDList Get all aggregate type or item attribute IDs
getNameList Get all aggregate type or item attribute names

Topics

Read Historical Data at Specific Times

Read values for a list of items at specific times.

Read Processed Aggregate Data

Instruct the server to return only a processed data set.

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