Event conditions supported by this event category.
Syntax
Example
.NET
// This example shows information available about OPC event category.
using System;
using System.Diagnostics;
using OpcLabs.EasyOpc.AlarmsAndEvents;
using OpcLabs.EasyOpc.AlarmsAndEvents.AddressSpace;
using OpcLabs.EasyOpc.OperationModel;
namespace DocExamples.AlarmsAndEvents._AECategoryElement
{
class Properties
{
public static void Main1()
{
// Instantiate the client object.
var client = new EasyAEClient();
AECategoryElementCollection categoryElements;
try
{
categoryElements = client.QueryEventCategories("", "OPCLabs.KitEventServer.2");
}
catch (OpcException opcException)
{
Console.WriteLine("*** Failure: {0}", opcException.GetBaseException().Message);
return;
}
foreach (AECategoryElement categoryElement in categoryElements)
{
Debug.Assert(!(categoryElement is null));
Console.WriteLine("Information about category {0}:", categoryElement);
Console.WriteLine(" .CategoryId: {0}", categoryElement.CategoryId);
Console.WriteLine(" .Description: {0}", categoryElement.Description);
Console.WriteLine(" .ConditionElements:");
if (!(categoryElement.ConditionElements.Keys is null))
foreach (string conditionKey in categoryElement.ConditionElements.Keys)
Console.WriteLine(" {0}", conditionKey);
Console.WriteLine(" .AttributeElements:");
if (!(categoryElement.AttributeElements.Keys is null))
foreach (long attributeKey in categoryElement.AttributeElements.Keys)
Console.WriteLine(" {0}", attributeKey);
}
}
}
}
# This example shows information available about OPC event category.
# The QuickOPC package is needed. Install it using "pip install opclabs_quickopc".
import opclabs_quickopc
# Import .NET namespaces.
from OpcLabs.EasyOpc.AlarmsAndEvents import *
from OpcLabs.EasyOpc.OperationModel import *
# Instantiate the client object.
client = EasyAEClient()
try:
categoryElements = IEasyAEClientExtension.QueryEventCategories(client, '', 'OPCLabs.KitEventServer.2')
except OpcException as opcException:
print('*** Failure: ' + opcException.GetBaseException().Message, sep='')
exit()
# Display results
for categoryElement in categoryElements:
assert categoryElement is not None
print('Information about category ', categoryElement, sep='')
print(' .CategoryId: ', categoryElement.CategoryId, sep='')
print(' .Description: ', categoryElement.Description, sep='')
print(' .ConditionElements:')
if categoryElement.ConditionElements.Keys is not None:
for conditionKey in categoryElement.ConditionElements.Keys:
print(' ', conditionKey, sep='')
print(' .AttributeElements:')
if categoryElement.AttributeElements.Keys is not None:
for attributeKey in categoryElement.AttributeElements.Keys:
print(' ', attributeKey, sep='')
' This example shows information available about OPC event category.
Imports OpcLabs.EasyOpc.AlarmsAndEvents
Imports OpcLabs.EasyOpc.AlarmsAndEvents.AddressSpace
Imports OpcLabs.EasyOpc.OperationModel
Namespace AlarmsAndEvents._AECategoryElement
Friend Class Properties
Public Shared Sub Main1()
Dim client = New EasyAEClient()
Dim categoryElements As AECategoryElementCollection
Try
categoryElements = client.QueryEventCategories("", "OPCLabs.KitEventServer.2")
Catch opcException As OpcException
Console.WriteLine("*** Failure: {0}", opcException.GetBaseException().Message)
Exit Sub
End Try
For Each categoryElement As AECategoryElement In categoryElements
Debug.Assert(categoryElement IsNot Nothing)
Console.WriteLine("Information about category {0}:", categoryElement)
Console.WriteLine(" .CategoryId: {0}", categoryElement.CategoryId)
Console.WriteLine(" .Description: {0}", categoryElement.Description)
Console.WriteLine(" .ConditionElements:")
If categoryElement.ConditionElements.Keys IsNot Nothing Then
For Each conditionKey As String In categoryElement.ConditionElements.Keys
Console.WriteLine(" {0}", conditionKey)
Next conditionKey
End If
Console.WriteLine(" .AttributeElements:")
If categoryElement.AttributeElements.Keys IsNot Nothing Then
For Each attributeKey As Long In categoryElement.AttributeElements.Keys
Console.WriteLine(" {0}", attributeKey)
Next attributeKey
End If
Next categoryElement
End Sub
End Class
End Namespace
Requirements
Target Platforms: .NET Framework: Windows 10 (selected versions), Windows 11 (selected versions), Windows Server 2016, Windows Server 2022; .NET: Linux, macOS, Microsoft Windows
See Also
