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Package: opc.hda

Convert OPC HDA data object array to uint8 matrix


Vuint8 = uint8(DObj)



Vuint8 = uint8(DObj) converts the OPC HDA data object array DObj into a uint8 matrix.

DObj must have the same time stamps for each of the Item IDs (elements of DObj), otherwise an error is generated. Use tsunion, tsintersect, or resample to generate an OPC HDA data object containing the same time stamp for all items in the object.


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Load the OPC HDA example data file, convert the hdaDataSmall object to have the same time stamps, and create a uint8 matrix from the result.

load opcSampleHdaData;
dUnion = tsunion(hdaDataSmall);
Vuint8 = uint8(dUnion);

Input Arguments

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OPC HDA data, specified as an OPC HDA data object array.

Output Arguments

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OPC HDA data values, returned as a uint8 matrix. Vuint8 is constructed as an M-by-N matrix of uint8 values, where M is the number of items in DObj and N is the number of time stamps in the array.

See Also


Introduced in R2011a