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Hi, Has anyone gone down the road of evaluating or has experience implementing the OPC UA architecture? There are a couple of toolkits out there so thankfully there is no real need to tackle the OPC .NET API. At this point I'm trying to fetter the tech side of it. What were the unexpected roadblocks you ran into? If anyone can share their experiences it would be appreciated. Thanks!
pato7 posted a topic in LabVIEW GeneralHello, I have a question regarding creating reference/Variable nodes in the OPC UA Data structure. For example, we have two items in a big data structure tree having the same property, Is it possible to create this reference property while building the data structure? And can it be represented in the data tree at both items? Should I use local Variables for this task? and how? In short, Iam asking if its possible to have same property represented two times in the Data tree and when we change it's value in one place, it automatically changes in the other place. Any advice would be highly appreciated. Thank you. Best Regards.
pato7 posted a topic in LabVIEW GeneralHello Guys, I am a masters student at a German university now working on a research project and we are using OPC UA labview toolkit. I am new with using OPC UA in Labview so I am not sure to what extent are the capabilities OPC UA labview are similar to that defined by the OPC foundation. I hope I can get some tips and help on some issues. Normally through labview we can create an OPC UA server and add folders/ Items/Properties to create the data structure. But this is done manually by adding the vi for each folder and item and connecting them. This is reasonable if we have two or three items or properties in the data structure. But if we have for example 40 items, then it would get messy. So i am thinking of a way to read the data from an excel sheet or text doc and automatically create the data structure in the OPC UA server. Offcourse, the data in the excel sheet should be arranged in a special way so that we can create the node paths easily and define the characteristics( read/write, datatype) of each node automatically. so far i was able to create the OPC UA server but I am stuck on how to transform the data from the excel file to the OPC UA server. please find attached the VI i have so far. Any help would be highly appreciated. THank you. BEst Regards, Elias non-Secureconnections.vi fileread.vi Data2.xls