Siemens SIMATIC RF310M Function Manual page 23

Now, Jerry – the guy working at the warehouse – wants to check if all the goods having been
unloaded at the gate are still within the package now stored in aisle three of the warehouse.
So he takes his RFxxxM device with him, walks up to the package in aisle three and scans
the package again just for monitoring purposes.
Since Jerry realized there were some parts missing in the package, the supplier sent the
missing parts right away in a second delivery by a parcel service. This second parcel,
however, did not pass the gates but arrived directly at the office counter. There, Molly – the
soul of the office – used another RFxxxM device to scan the ID of the delivered goods.
Contrary to Jerry's scanning, the data she acquired was not only used for monitoring but as
additional input to the system just as it would be a third gate.
However, Molly's desk is crowded as always and thus her scanning detects not only the tags
of the new parcel but some others from nearby as well. She wants to forward only the new
product IDs and skip the remaining known IDs that where scanned accidentally.
The story above shows two new use cases for the RFxxxM. We will go through both of them
and discuss the implications to the usage of the RFID reader interface.
Mobile Readers
Function Manual, 12/2010, J31069-D0198-U001-A2-7618
RFID Reader Interface User's Guide
2.3 Extending the Reach
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