XML to OPC
You have answered a few of my queries so thought you may know the answer to a problem I currently have.
I require a way to read XML data from a web API (REST) and feed that into Digivis. The best way I can see is via OPC but can't find a way to integrate something like this. There is an app which I believe you posted for OPC to Excel, I could have Excel pull the information off of the web then write it to OPC however not sure whether I will hit some problems when we look to scale it.
Have you come across this before?
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Beside the functionalities of Excel, which I don't see as a gateway software, is connectivity of OPC to a variety of protocolls provided by the vendors of OPC middleware. I would start there with some investigations.
Maybe the help of the Freelance OPC tunnel can provide you with first information.
sorry for I don't have answer to your question this time :(, but check OPC manual "3BDD012511 Engineering - OPC Server F.pdf" there if you get something as there are few codes to connect via excel and VB. The app you are mentioning also using same code I guess uploaded by Govindaraj.