The remote communication via OPC UA interface might not be able to establish although you follow the step above. In client computer, run the LabVIEW program again.In server computer, open OPC UA Configuration Manager and import the client certificate.Double click the certificate and install the certificate. Transfer the client certificate from client computer to server computer.However, after the first run, certificate is generated by the Create Certificate VI and is located at C:\ProgramData\National Instruments\certstore\opcua. At first run, you may receive an error, because OPC server doesn't trust the OPC client.In client computer, program your LabVIEW application using OPC UA API and establish connection by using server endpoint URL, security policies and server certificate that you obtain in step 8.Usually the certificate will be installed in Trusted Root Certification Authorities. Double click the certificate and install the certificate. Transfer the server certificate from server computer to client computer.If it doesn't exist, you can open OPC Server Administration, NI OPC Server icon will be displayed at taskbar.
You can do this by right clicking the NI OPC Server icon at taskbar and select Reinitialize. Open OPC UA Configuration Manager to obtain server endpoint URL, set desired security policies and export server certificate.Configure appropriate settings and choose desired tags that you would like to access.Add device to the new created channel and key in appropriate name for it.Configure appropriate connection setting.Click Select server and navigate to FSGateway.Configure appropriate write optimization setting.Select OPC DA Client from the Device driver drop down menu.In server computer, open NI OPC Server and create new communication channel by clicking New Channel icon and key in appropriate name for it.Whereas at client computer, use OPC UA API to act as OPC UA Client to access data from remote NI OPC Server (server computer). However, DCOM setting is required before using this I/O Server.Īt server computer, use NI OPC Server to act as OPC DA Client to access data from FSGateway. See Create Shared Variables that Connect to the OPC Tags through the I/O Server in Connect LabVIEW to Any PLC Using OPC. Use OPC Client I/O Server (DSC Module) to access remote OPC tag.
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