OPC Studio User's Guide and Reference
RequestedUpdateRate Property (DAItemPointSubscribeParameters)



OpcLabs.EasyOpcClassic Assembly > OpcLabs.EasyOpc.DataAccess.Connectivity Namespace > DAItemPointSubscribeParameters Class : RequestedUpdateRate Property
Gets or sets the requested update rate.
Syntax
'Declaration
 
<DataMemberAttribute()>
<UnitAttribute("ms")>
Public Shadows Property RequestedUpdateRate As Integer
'Usage
 
Dim instance As DAItemPointSubscribeParameters
Dim value As Integer
 
instance.RequestedUpdateRate = value
 
value = instance.RequestedUpdateRate
[DataMember()]
[Unit("ms")]
public new int RequestedUpdateRate {get; set;}
[DataMember()]
[Unit("ms")]
public:
new property int RequestedUpdateRate {
   int get();
   void set (    int value);
}

Property Value

Unit of measurement is ms.

The default value of this property is 1000.

Exceptions
ExceptionDescription

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.

Remarks

How often should the updates be received (number of milliseconds).

The value must be greater than zero, or it must be equal to System.Threading.Timeout.Infinite.

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

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