Read-Only

This Tag indicates if there are events in the buffer not yet read by an application, collected using the internal scan of this Driver. This Tag can be used to prevent loosing events when closing an application. By setting this Driver to the Offline mode, the internal scan is suspended, allowing the Tags for automatic scanning of events to remove data from the internal buffer, until this Tag assumes the value 0 (zero). After emptying this Driver's internal buffer, the I/O Driver object can be destroyed or stopped, without loosing events. For more information, please check topic Automatic Scanning of Events. Possible values for the Value property are 0: There is no data in the buffer or 1: There is still data in the buffer waiting for reading by an application.