PluginSetups Property (_EasyUASubscriberSharedParameters)

Setups of plug-ins for the client object instance.

Syntax

[NotNull()]
PluginSetupCollection PluginSetups {get; set;}

[NotNull()]
property PluginSetupCollection^ PluginSetups {
   PluginSetupCollection^ get();
   void set (    PluginSetupCollection^ value);
}

'Declaration
 
<NotNullAttribute()>
Property PluginSetups As PluginSetupCollection

'Usage
 
Dim instance As _EasyUASubscriberSharedParameters
Dim value As PluginSetupCollection
 
instance.PluginSetups = value
 
value = instance.PluginSetups

Property Value

The value of this property cannot be null (Nothing in Visual Basic).

The individual elements of the property value cannot be null (Nothing in Visual Basic).

Exceptions

Exception Description

Exception	Description
System.ArgumentNullException	A `null` reference (`Nothing` in Visual Basic) is passed to a method that does not accept it as a valid argument. This is a usage error, i.e. it will never occur (the exception will not be thrown) in a correctly written program. Your code should not catch this exception.

System.ArgumentNullException

A null reference (Nothing in Visual Basic) is passed to a method that does not accept it as a valid argument.

This is a usage error, i.e. it will never occur (the exception will not be thrown) in a correctly written program. Your code should not catch this exception.

Remarks

The getter method of this property is pure, i.e. it does not have observable side effects.

This member or type is for use from COM. It is not meant to be used from .NET or Python. Refer to the corresponding .NET member or type instead, if you are developing in .NET or Python.

Example

// Shows how to disable and enable the OPC UA Complex Data plug-in.
//
// 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.EasyOpc.UA;
using OpcLabs.EasyOpc.UA.OperationModel;

namespace UADocExamples.ComplexData._PluginSetup
{
    class Enabled
    {
        public static void Main1()
        {
            // Define which server and node we will work with.
            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/"
            UANodeDescriptor nodeDescriptor =
                "nsu=http://test.org/UA/Data/ ;i=10239"; // [ObjectsFolder]/Data.Static.Scalar.StructureValue


            // We will explicitly disable the Complex Data plug-in, and read a node which returns complex data. We will 
            // receive an object of type UAExtensionObject, which contains the encoded data in its binary form. In this 
            // form, the data cannot be easily further processed by your application.
            //
            // Disabling the Complex Data plug-in may be useful e.g. for licensing reasons (when the product edition you 
            // have does not support the Complex Data plug-in, and you want to avoid the associated error), or for
            // performance reasons (if you do not need the internal content of the value, for example if your code just
            // needs to take the value read, and write it elsewhere).

            var client1 = new EasyUAClient();
            client1.InstanceParameters.PluginSetups.FindName("UAComplexDataClient").Enabled = false;

            object value1;
            try
            {
                value1 = client1.ReadValue(endpointDescriptor, nodeDescriptor);
            }
            catch (UAException uaException)
            {
                Console.WriteLine("*** Failure: {0}", uaException.GetBaseException().Message);
                return;
            }
            Console.WriteLine(value1);


            // Now we will read the same value, but with the Complex Data plug-in enabled. This time we will receive an
            // object of type UAGenericObject, which contains the data in the decoded form, accessible for further 
            // processing by your application.
            //
            // Note that it is not necessary to explicitly enable the Complex Data plug-in like this, because it is enabled
            // by default.

            var client2 = new EasyUAClient();
            client2.InstanceParameters.PluginSetups.FindName("UAComplexDataClient").Enabled = true;

            object value2 = client2.ReadValue(endpointDescriptor, nodeDescriptor);
            Console.WriteLine(value2);


            // Example output:
            //
            // Binary Byte[1373]; {nsu=http://test.org/UA/Data/ ;i=11437}
            // (ScalarValueDataType) structured

            // On the first line, the type and length of the encoded data is shown, and the node ID is the encoding ID.
            // On the 2nd line, the kind (structured) and the name of the complex data type (ScalarValueDataType) is shown.
        }
    }
}

' Shows how to disable and enable the OPC UA Complex Data plug-in.
'
' Find all latest examples here: https://opclabs.doc-that.com/files/onlinedocs/OPCLabs-OpcStudio/Latest/examples.html .
' OPC client and subscriber examples in VB.NET on GitHub: https://github.com/OPCLabs/Examples-QuickOPC-VBNET .
' 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 System
Imports OpcLabs.EasyOpc.UA
Imports OpcLabs.EasyOpc.UA.OperationModel

Namespace ComplexData._PluginSetup

    Friend Class Enabled

        Public Shared Sub Main1()

            ' Define which server we will work with.
            Dim endpointDescriptor As UAEndpointDescriptor =
                    "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/"

            ' Define which node we will work with.
            Dim nodeDescriptor As UANodeDescriptor = _
                "nsu=http://test.org/UA/Data/ ;i=10239"  ' [ObjectsFolder]/Data.Static.Scalar.StructureValue


            ' We will explicitly disable the Complex Data plug-in, and read a node which returns complex data. We will 
            ' receive an object of type UAExtensionObject, which contains the encoded data in its binary form. In this 
            ' form, the data cannot be easily further processed by your application.
            '
            ' Disabling the Complex Data plug-in may be useful e.g. for licensing reasons (when the product edition you 
            ' have does not support the Complex Data plug-in, and you want to avoid the associated error), or for
            ' performance reasons (if you do not need the internal content of the value, for example if your code just
            ' needs to take the value read, and write it elsewhere).

            Dim client1 = New EasyUAClient
            client1.InstanceParameters.PluginSetups.FindName("UAComplexDataClient").Enabled = False

            Dim value1 As Object
            Try
                value1 = client1.ReadValue(endpointDescriptor, nodeDescriptor)
            Catch uaException As UAException
                Console.WriteLine("*** Failure: {0}", uaException.GetBaseException.Message)
                Exit Sub
            End Try
            Console.WriteLine(value1)


            ' Now we will read the same value, but with the Complex Data plug-in enabled. This time we will receive an
            ' object of type UAGenericObject, which contains the data in the decoded form, accessible for further 
            ' processing by your application.
            '
            ' Note that it is not necessary to explicitly enable the Complex Data plug-in like this, because it is enabled
            ' by default.

            Dim client2 = New EasyUAClient
            client2.InstanceParameters.PluginSetups.FindName("UAComplexDataClient").Enabled = True

            Dim value2 As Object
            Try
                value2 = client2.ReadValue(endpointDescriptor, nodeDescriptor)
            Catch uaException As UAException
                Console.WriteLine("*** Failure: {0}", uaException.GetBaseException.Message)
                Exit Sub
            End Try
            Console.WriteLine(value2)


            ' Example output:
            '
            ' Binary Byte[1373]; {nsu=http://test.org/UA/Data/ ;i=11437}
            ' (ScalarValueDataType) structured

            ' On the first line, the type and length of the encoded data is shown, and the node ID is the encoding ID.
            ' On the 2nd line, the kind (structured) and the name of the complex data type (ScalarValueDataType) is shown.
        End Sub
    End Class
End Namespace

// Shows how to disable and enable the OPC UA Complex Data plug-in.
//
// Find all latest examples here: https://opclabs.doc-that.com/files/onlinedocs/OPCLabs-OpcStudio/Latest/examples.html .
// OPC client and subscriber examples in Object Pascal (Delphi) on GitHub: https://github.com/OPCLabs/Examples-QuickOPC-OP .
// 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.

class procedure Enabled.Main;
var
  Client1, Client2: _EasyUAClient;
  EndpointDescriptor: string;
  NodeDescriptor: string;
  Value1, Value2: OleVariant;
begin
  // Define which server and node we will work with.
  EndpointDescriptor := 
    //'http://opcua.demo-this.com:51211/UA/SampleServer';
    //'https://opcua.demo-this.com:51212/UA/SampleServer/';
    'opc.tcp://opcua.demo-this.com:51210/UA/SampleServer';
  NodeDescriptor := 'nsu=http://test.org/UA/Data/ ;i=10239';  // [ObjectsFolder]/Data.Static.Scalar.StructureValue

  // We will explicitly disable the Complex Data plug-in, and read a node which returns complex data. We will
  // receive an object of type UAExtensionObject, which contains the encoded data in its binary form. In this
  // form, the data cannot be easily further processed by your application.
  //
  // Disabling the Complex Data plug-in may be useful e.g. for licensing reasons (when the product edition you
  // have does not support the Complex Data plug-in, and you want to avoid the associated error), or for
  // performance reasons (if you do not need the internal content of the value, for example if your code just
  // needs to take the value read, and write it elsewhere).
  Client1 := CoEasyUAClient.Create;
  Client1.InstanceParameters.PluginSetups.FindName('UAComplexDataClient').Enabled := false;

  try
    Value1 := Client1.ReadValue(EndpointDescriptor, NodeDescriptor);
  except
    on E: EOleException do
    begin
      WriteLn(Format('*** Failure: %s', [E.GetBaseException.Message]));
      Exit;
    end;
  end;
  WriteLn(Value1);

  // Now we will read the same value, but with the Complex Data plug-in enabled. This time we will receive an
  // object of type UAGenericObject, which contains the data in the decoded form, accessible for further
  // processing by your application.
  //
  // Note that it is not necessary to explicitly enable the Complex Data plug-in like this, because it is enabled
  // by default.

  Client2 := CoEasyUAClient.Create;
  Client2.InstanceParameters.PluginSetups.FindName('UAComplexDataClient').Enabled := true;

  Value2 := Client2.ReadValue(EndpointDescriptor, NodeDescriptor);
  WriteLn(Value2);

  // Example output:
  //
  // Binary Byte[1373]; {nsu=http://test.org/UA/Data/ ;i=11437}
  // (ScalarValueDataType) structured

  // On the first line, the type and length of the encoded data is shown, and the node ID is the encoding ID.
  // On the 2nd line, the kind (structured) and the name of the complex data type (ScalarValueDataType) is shown.

end;

# Shows how to disable and enable the OPC UA Complex Data plug-in.
#
# Find all latest examples here: https://opclabs.doc-that.com/files/onlinedocs/OPCLabs-OpcStudio/Latest/examples.html .
# OPC client and subscriber examples in Python on GitHub: https://github.com/OPCLabs/Examples-QuickOPC-Python .
# 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.
# The QuickOPC package is needed. Install it using "pip install opclabs_quickopc".
import opclabs_quickopc

# Import .NET namespaces.
from OpcLabs.EasyOpc.UA import *
from OpcLabs.EasyOpc.UA.OperationModel import *


endpointDescriptor = UAEndpointDescriptor('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/'

# [ObjectsFolder]/Data.Static.Scalar.StructureValue
nodeDescriptor = UANodeDescriptor('nsu=http://test.org/UA/Data/ ;i=10239')


# We will explicitly disable the Complex Data plug-in, and read a node which returns complex data. We will
# receive an object of type UAExtensionObject, which contains the encoded data in its binary form. In this
# form, the data cannot be easily further processed by your application.
#
# Disabling the Complex Data plug-in may be useful e.g. for licensing reasons (when the product edition you
# have does not support the Complex Data plug-in, and you want to avoid the associated error), or for
# performance reasons (if you do not need the internal content of the value, for example if your code just
# needs to take the value read, and write it elsewhere).

client1 = EasyUAClient()
client1.InstanceParameters.PluginSetups.FindName('UAComplexDataClient').Enabled = False

try:
    value1 = IEasyUAClientExtension.ReadValue(client1, endpointDescriptor, nodeDescriptor)
except UAException as uaException:
    print('*** Failure: ' + uaException.GetBaseException().Message)
    exit()
print(value1)


# Now we will read the same value, but with the Complex Data plug-in enabled. This time we will receive an
# object of type UAGenericObject, which contains the data in the decoded form, accessible for further
# processing by your application.
#
# Note that it is not necessary to explicitly enable the Complex Data plug-in like this, because it is enabled
# by default.

client2 = EasyUAClient()
client2.InstanceParameters.PluginSetups.FindName('UAComplexDataClient').Enabled = True

try:
    value2 = IEasyUAClientExtension.ReadValue(client2, endpointDescriptor, nodeDescriptor)
except UAException as uaException:
    print('*** Failure: ' + uaException.GetBaseException().Message)
    exit()
print(value2)

print()
print('Finished.')

Requirements

Target Platforms: .NET Framework: Windows 10 (selected versions), Windows 11 (selected versions), Windows Server 2016, Windows Server 2022; .NET: Linux, macOS, Microsoft Windows

Reference

_EasyUASubscriberSharedParameters Interface
_EasyUASubscriberSharedParameters Members

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Missing some example? Ask us for it on our Online Forums! You do not have to own a commercial license in order to use Online Forums, and we reply to every post.