Main Content
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.
Instruct the server to return only a processed data set.
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