OPC Studio User's Guide and Reference
Readable Property



OpcLabs.ServerOpcUA Assembly > OpcLabs.EasyOpc.UA.NodeSpace Namespace > UADataVariable Class : Readable Property
Determines whether the variable data is readable.
Syntax
'Declaration
 
Public Property Readable As Boolean
'Usage
 
Dim instance As UADataVariable
Dim value As Boolean
 
instance.Readable = value
 
value = instance.Readable
public bool Readable {get; set;}
public:
property bool Readable {
   bool get();
   void set (    bool value);
}

Property Value

true if the variable is readable; otherwise, false.

The default value of this property is True.

Remarks

This property allows clients to determine if the variable's value can be read by OPC clients. Setting this to false can be used to restrict access to the variable's value.

This method or property does not throw any exceptions, aside from execution exceptions such as System.Threading.ThreadAbortException or System.OutOfMemoryException.

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