QuickOPC User's Guide and Reference
WriteItemValueByte(IEasyDAClient,ServerDescriptor,DANodeDescriptor,Byte) Method



OpcLabs.EasyOpcClassic Assembly > OpcLabs.EasyOpc.DataAccess.Extensions Namespace > IEasyDAClientExtension2 Class > WriteItemValueByte Method : WriteItemValueByte(IEasyDAClient,ServerDescriptor,DANodeDescriptor,Byte) Method
The client object that will perform the operation.
The OPC server involved in the operation.
The descriptor of the OPC node involved in the operation.
The value to be written.
Writes a System.Byte value into a named OPC item. A corresponding data type is passed to the OPC server.
Syntax
'Declaration
 
<ExtensionAttribute()>
Public Overloads Shared Sub WriteItemValueByte( _
   ByVal client As IEasyDAClient, _
   ByVal serverDescriptor As ServerDescriptor, _
   ByVal nodeDescriptor As DANodeDescriptor, _
   ByVal value As Byte _
) 
'Usage
 
Dim client As IEasyDAClient
Dim serverDescriptor As ServerDescriptor
Dim nodeDescriptor As DANodeDescriptor
Dim value As Byte
 
IEasyDAClientExtension2.WriteItemValueByte(client, serverDescriptor, nodeDescriptor, value)

Parameters

client
The client object that will perform the operation.
serverDescriptor
The OPC server involved in the operation.
nodeDescriptor
The descriptor of the OPC node involved in the operation.
value
The value to be written.
Exceptions
ExceptionDescription
The OPC "Classic" (or OPC XML-DA) operation has failed.
A null reference (Nothing in Visual Basic) is passed to a method that does not accept it as a valid argument.
Remarks
Using implicit conversions, you can pass an item ID in place of node descriptor.
Requirements

Target Platforms: .NET Framework: Windows 10 (selected versions), Windows 11 (selected versions), Windows Server 2012, Windows Server 2016; .NET Core, .NET 5, .NET 6: Linux, macOS, Microsoft Windows

See Also

Reference

IEasyDAClientExtension2 Class
IEasyDAClientExtension2 Members
Overload List