Siemens SIMATIC RF610M, Function Manual

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RFID Reader Interface Reference
3.4 IRfReaderApi
Mobile Readers
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Function Manual, 12/2010, J31069-D0198-U001-A2-7618
3.4.29 TagEventNotification
TagEventNotifications
Event
RfNotificationHandler(sender : object, args : RfNotificationArgs)
Exceptions
RfReaderApiException Error while communicating with the reader service.
Check the Error member for more information.
Note
This event provides notifications about tag events that the underlying reader service
produced.
Both RFID and barcode events will be delivered depending on the configured data sources.
As a prerequisite clients have to subscribe for tag events. As long as no subscription
occurred, the TagEventNotifications event will not provide any data.
Whenever tag event data is available, the notification arguments will contain an array of
RfTagEvent objects.
Each RfTagEvent object provides information about the tag id, the tag type (i.e. barcode or
RFID), the event type (e.g. glimpsed or observed), the time an event occurred as well as
information about the source of the data, the notification channel which sends the events and
the trigger which led to the event.
When working in filtering mode, the RfTagEvent list can be passed on to the SetTagEvents
function.
Each tag event contains a bunch of members giving information about the event itself and
about the reader and environment that created the event.
Whenever existing events are modified or own events are created some of these members
are required to have reasonable values. Those are marked with "mandatory" in the last
column of the table below.