Use the Scan property to specify a scan time used by the server to update the Value property. This property is represented in milliseconds and can be modified after communication starts, and it is used only when the AllowRead property is set to True. When configuring this property in several application Tags, users must increase the value of the Scan property to those Tags that do not vary very much in the device, enabling other Tags with higher priority to be read more frequently, thus enhancing general application performance. Default value is 1,000 (1 second). The scan value must be greater than 0 (zero). Example:

Sub Tag_OnStartRunning()
  Scan = 1500
End Sub