public static void Main1()
{
// Instantiate the client object and hook events
var easyUAClient = new EasyUAClient();
easyUAClient.EventNotification += easyUAClient_EventNotification;
Console.WriteLine("Subscribing...");
easyUAClient.SubscribeEvent(
"opc.tcp://opcua.demo-this.com:62544/Quickstarts/AlarmConditionServer",
UAObjectIds.Server,
1000,
new UAEventFilterBuilder(
// Either the severity is >= 500, or the event comes from a specified source node
UAFilterElements.Or(
UAFilterElements.GreaterThanOrEqual(UABaseEventObject.Operands.Severity, 500),
UAFilterElements.Equals(
UABaseEventObject.Operands.SourceNode,
new UANodeId("nsu=http://opcfoundation.org/Quickstarts/AlarmCondition;ns=2;s=1:Metals/SouthMotor"))),
UABaseEventObject.AllFields));
Console.WriteLine("Processing event notifications for 30 seconds...");
System.Threading.Thread.Sleep(30 * 1000);
Console.WriteLine("Unsubscribing...");
easyUAClient.UnsubscribeAllMonitoredItems();
Console.WriteLine("Waiting for 5 seconds...");
System.Threading.Thread.Sleep(5 * 1000);
}
public static void Events()
{
// Instantiate the client object and hook events
var easyUAClient = new EasyUAClient();
easyUAClient.EventNotification += easyUAClient_EventNotification;
Console.WriteLine("Subscribing...");
easyUAClient.SubscribeMultipleMonitoredItems(new[]
{
new EasyUAMonitoredItemArguments("firstState",
"opc.tcp://opcua.demo-this.com:62544/Quickstarts/AlarmConditionServer",
UAObjectIds.Server,
new UAMonitoringParameters(1000, new UAEventFilterBuilder(
UAFilterElements.GreaterThanOrEqual(UABaseEventObject.Operands.Severity, 500),
UABaseEventObject.AllFields)))
{
AttributeId = UAAttributeId.EventNotifier
},
new EasyUAMonitoredItemArguments("secondState",
"opc.tcp://opcua.demo-this.com:62544/Quickstarts/AlarmConditionServer",
UAObjectIds.Server,
new UAMonitoringParameters(2000, new UAEventFilterBuilder(
UAFilterElements.Equals(
UABaseEventObject.Operands.SourceNode,
new UANodeId("nsu=http://opcfoundation.org/Quickstarts/AlarmCondition;ns=2;s=1:Metals/SouthMotor")),
UABaseEventObject.AllFields)))
{
AttributeId = UAAttributeId.EventNotifier
},
});
Console.WriteLine("Processing event notifications for 30 seconds...");
System.Threading.Thread.Sleep(30 * 1000);
Console.WriteLine("Unsubscribing...");
easyUAClient.UnsubscribeAllMonitoredItems();
Console.WriteLine("Waiting for 5 seconds...");
System.Threading.Thread.Sleep(5 * 1000);
}