Member access possible through property nodes Careful: Use of property nodes forces GUI into memory.Run-Time Polymorphism through dynamic dispatch.Data encapsulation, data scope, protected data access.Similar to library with private-scope virtual folder.Optimized data copying (no big clusters).Options for LabVIEW 1:1 communication (complemented by the AMQP middleware).Guru contact at CERN: Benjamin Farnham (BE-ICS-CIC).TLS encryption library is not natively supported in LabVIEW.HTTPS connection should work to connect to OPC UA Server.High throughput possible: 80-90% of the network.Have to somehow distribute the certificate to clients to enable them to connect.Need to create SSL certificates using the appropriate VIs.A LabVIEW Application Instance is then running the the OPC UA Server.OPC UA Server LabVIEW VIs are installed with the DSC module.Can be difficult to debug (Use NI Distributed System Manager, restart Shared Variable Engine process in Windows).Right click Shared Variable nodes, show Timeout and Timestamp. Matrikon OPC Server (TODO: link?) Create processes and values (tags).Data Socket open read/write close vis (also in Linux).Programmatic access Shared Variable open read/write close vis.I/O server acts as bridge between OPC DA and LabVIEW shared variable engine.When creating an I/O item in LabVIEW: Check the I/O Server Update Rate!.Go for OPC UA when in doubt and not dealing with 'legacy systems'.DSC module must be installed in LabVIEW.OPC - Open Platform Communications → Wikipedia ArticleĬheck out Antoines LabVIEW examples in GITLab :
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