// This example shows how to read the build information of the server. // See also: https://reference.opcfoundation.org/Core/Part5/v105/docs/7.7 and // https://reference.opcfoundation.org/Core/Part5/v104/docs/12.4 . // // Find all latest examples here: https://opclabs.doc-that.com/files/onlinedocs/OPCLabs-OpcStudio/Latest/examples.html . // OPC client and subscriber examples in C# on GitHub: https://github.com/OPCLabs/Examples-QuickOPC-CSharp . // Missing some example? Ask us for it on our Online Forums, https://www.opclabs.com/forum/index ! You do not have to own // a commercial license in order to use Online Forums, and we reply to every post. using System; using OpcLabs.BaseLib.OperationModel; using OpcLabs.EasyOpc.UA; using OpcLabs.EasyOpc.UA.AddressSpace.Standard; using OpcLabs.EasyOpc.UA.OperationModel; namespace UADocExamples.InformationModel { partial class BuildInfoType { public static void Main1() { UAEndpointDescriptor endpointDescriptor = "opc.tcp://opcua.demo-this.com:51210/UA/SampleServer"; // or "http://opcua.demo-this.com:51211/UA/SampleServer" (currently not supported) // or "https://opcua.demo-this.com:51212/UA/SampleServer/" // Instantiate the client object. var client = new EasyUAClient(); // Obtain values. By default, the Value attributes of the nodes will be read. var readArgumentsArray = new[] { new UAReadArguments(endpointDescriptor, UAVariableIds.ServerStatusType_BuildInfo_BuildDate), new UAReadArguments(endpointDescriptor, UAVariableIds.ServerStatusType_BuildInfo_BuildNumber), new UAReadArguments(endpointDescriptor, UAVariableIds.ServerStatusType_BuildInfo_ManufacturerName), new UAReadArguments(endpointDescriptor, UAVariableIds.ServerStatusType_BuildInfo_ProductName), new UAReadArguments(endpointDescriptor, UAVariableIds.ServerStatusType_BuildInfo_ProductUri), new UAReadArguments(endpointDescriptor, UAVariableIds.ServerStatusType_BuildInfo_SoftwareVersion), }; ValueResult[] valueResultArray = client.ReadMultipleValues(readArgumentsArray); // Display results. for (int i = 0; i < valueResultArray.Length; i++) { UAReadArguments readArguments = readArgumentsArray[i]; ValueResult valueResult = valueResultArray[i]; if (valueResult.Succeeded) Console.WriteLine($"{readArguments.NodeDescriptor.NodeId}: {valueResult.Value}"); else Console.WriteLine($"{readArguments.NodeDescriptor.NodeId}: *** Failure: {valueResult.ErrorMessageBrief}"); } // Note that as of time of writing this code, the public sample server does not have the build information // filled in, and the displayed information is thus largely empty (but correct). The example gives better // results with servers that provide meaningful build information. } } }
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