Visual Basic (Usage)	Copy Code
Dim instance As DataBindSubscription Dim maxAge As Integer Dim value As ItemValue   value = instance.Read(maxAge)

public ItemValue Read( 
   int maxAge
)

Parameters

maxAge

Max Age in ms to instruct the server to read from the device if the cache value has an older timestamp. For OPC DA V2 servers a read-from-device is executed if maxAge is smaller than the defined refresh update rate.

Return Value

Target Platforms:Windows XP Professional, Windows Server 2003 family, Windows Vista, Windows 7, Windows Server 2008 family

Reference