'UsageDim value As Object Dim instance As New SparkplugMetricData(value)
Parameters
- value
- The value of the Sparkplug data.
The value of this parameter can be
null(Nothingin Visual Basic).
The value of this parameter can be null (Nothing in Visual Basic).
'UsageDim value As Object Dim instance As New SparkplugMetricData(value)
The value of this parameter can be null (Nothing in Visual Basic).
This method or property does not throw any exceptions, aside from execution exceptions such as System.Threading.ThreadAbortException or System.OutOfMemoryException.
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// This example shows how to publish a command with single metric for a given device. // // In order to publish or observe messages for this example, start the SparkplugEdgeNodeConsoleDemo program first. // // Find all latest examples here: https://opclabs.doc-that.com/files/onlinedocs/OPCLabs-ConnectivityStudio/Latest/examples.html . // Sparkplug examples in C# on GitHub: https://github.com/OPCLabs/Examples-ConnectivityStudio-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.EasySparkplug; using OpcLabs.EasySparkplug.OperationModel; namespace SparkplugDocExamples.Consumer._EasySparkplugConsumer { partial class PublishDeviceMetric { public static void Overload1() { // Note that the default port for the "mqtt" scheme is 1883. var hostDescriptor = new SparkplugHostDescriptor("mqtt://localhost"); // Instantiate the consumer object. var consumer = new EasySparkplugConsumer(); Console.WriteLine("Publishing..."); try { consumer.PublishDeviceMetric(hostDescriptor, "easyGroup", "easySparkplugDemo", "demo", "Simple", new SparkplugMetricData(42)); // the command metric value } catch (SparkplugException sparkplugException) { Console.WriteLine($"*** Failure: {sparkplugException.GetBaseException().Message}"); return; } Console.WriteLine("Finished."); } } }
' This example shows how to publish a command with single metric for a given device. ' ' In order to publish or observe messages for this example, start the SparkplugEdgeNodeConsoleDemo program first. ' ' Find all latest examples here: https://opclabs.doc-that.com/files/onlinedocs/OPCLabs-ConnectivityStudio/Latest/examples.html . ' Sparkplug examples in C# on GitHub: https://github.com/OPCLabs/Examples-ConnectivityStudio-CSharp . ' Missing some example? Ask us for it on our Online Forums, https://www.opclabs.com/forum/index ! You do not have to own ' a commercial license in order to use Online Forums, and we reply to every post. Imports OpcLabs.EasySparkplug Imports OpcLabs.EasySparkplug.OperationModel Namespace Global.SparkplugDocExamples.Consumer._EasySparkplugConsumer Partial Class PublishDeviceMetric Public Shared Sub Overload1() ' Note that the default port for the "mqtt" scheme is 1883. Dim hostDescriptor = New SparkplugHostDescriptor("mqtt://localhost") ' Instantiate the consumer object. Dim consumer = New EasySparkplugConsumer() Console.WriteLine("Publishing...") Try consumer.PublishDeviceMetric(hostDescriptor, "easyGroup", "easySparkplugDemo", "demo", "Simple", New SparkplugMetricData(42)) ' the command metric value Catch sparkplugException As SparkplugException Console.WriteLine($"*** Failure: {sparkplugException.GetBaseException().Message}") Return End Try Console.WriteLine("Finished.") End Sub End Class End Namespace