Specifies the update's scan time of OPC Group Tags used by the server. This property is represented in milliseconds and it can be modified after starting communication, and it is used only when the Enable property is set to True.

When configuring this property in several Tags of an application, users must increase the value of this property on those OPC Group Tags that do not vary very much in the device, enabling other OPC Group Tags with higher priority to be read more frequently, thus enhancing application's performance and responsiveness. Default value of this property is 1,000.