OPC Studio User's Guide and Reference
UAVariableIds Class
Members 



OpcLabs.EasyOpcUA Assembly > OpcLabs.EasyOpc.UA.AddressSpace.Standard Namespace : UAVariableIds Class
A class that declares constants for all Variables in the Model Design.
Object Model
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Syntax
'Declaration
 
<ComVisibleAttribute(False)>
Public MustInherit NotInheritable Class UAVariableIds 
'Usage
 
Dim instance As UAVariableIds
[ComVisible(false)]
public static class UAVariableIds 
[ComVisible(false)]
public ref class UAVariableIds abstract sealed 
Remarks

 

OPC Data Client-UA provides static classes with standard Node IDs defined by OPC Foundation: UADataTypeIdsUAMethodIdsUAObjectIdsUAObjectTypeIdsUAReferenceTypeIdsUAVariableIds, and UAVariableTypeIds. You can use properties of these static classes to easily specify “well-known” nodes you need to refer to, for example, the “ObjectsFolder” node which is a common starting node for browsing.

There are following classes with standard Node IDs for OPC-UA:

When you need to pass a standard node to any method, simply use the corresponding property from the static class, such as UAObjectIds.ObjectsFolder.

You can use the command-line OpcCmd Utility (installed with OPC Data Client, or downloadable separately) to:

  • Get standard name that corresponds to OPC UA Node Id
  • Get the OPC UA Node Id that corresponds to given standard name
  • Display tables of node IDs and their standard names
  • Filter the tables to find out matching names.

See Using OpcCmd Utility for Static OPC UA Operations.

 

Inheritance Hierarchy

System.Object
   OpcLabs.EasyOpc.UA.AddressSpace.Standard.UAVariableIds

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