kokolopr

Difference between PI OPC DA and PI OPC HDA Servers

Discussion created by kokolopr on Nov 5, 2013
Latest reply on Nov 26, 2013 by Gregor

What is the difference between DA and HDA? I have started programming and looks like all the functionality is available in both. PI OPC DA can fetch history data if requested like HDA. 

 

Thanks 

 

Prabhakar

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