OPC Studio User's Guide and Reference
DAQuality Constructor(DAStatusChoice,DALimitChoice)



OpcLabs.EasyOpcClassicCore Assembly > OpcLabs.EasyOpc.DataAccess Namespace > DAQuality Class > DAQuality Constructor : DAQuality Constructor(DAStatusChoice,DALimitChoice)
A combination of a basic quality choice (Good/Uncertain/Bad), and a sub-status.
The Limit bit field of OPC quality.
Initializes a new instance of the class, with specified status choice and limit choice.
Syntax
'Declaration
 
Public Function New( _
   ByVal statusChoice As DAStatusChoice, _
   ByVal limitChoice As DALimitChoice _
)
'Usage
 
Dim statusChoice As DAStatusChoice
Dim limitChoice As DALimitChoice
 
Dim instance As New DAQuality(statusChoice, limitChoice)

Parameters

statusChoice
A combination of a basic quality choice (Good/Uncertain/Bad), and a sub-status.
limitChoice
The Limit bit field of OPC quality.
Exceptions
ExceptionDescription

One of the arguments provided to a method is not valid.

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.

The value of an argument is outside the allowable range of values as defined by the invoked method.

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.

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