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Data Logs and Buffers

Log data to disk or memory, read data logs

Log data from an OPC server for later analysis or visualization.

Control notifications when OPC servers generate data change events.


refreshRead all active items in group
startStart a logging task
stopStop a logging task
waitSuspend MATLAB execution until object stops logging
flushdataRemove all logged data records associated with dagroup object
getdataRetrieve logged OPC records from toolbox engine to MATLAB workspace
peekdataPreview most recently acquired data
opcreadRead logged records from disk to MATLAB workspace
opcstruct2arrayConvert OPC data from structure to array format
opcstruct2timeseriesConvert OPC data from structure to time series format


opcda Object PropertiesConfigure OPC DA client
dagroup Object PropertiesConfigure OPC dagroup object
daitem Object PropertiesConfigure OPC daitem object