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It is not possible to scan tags when the device is connected to the USB mass storage or connected to
power.
The device vibrates in the following situations:
If an RFID tag is read as suspect or counterfeit the GSsmart device vibrates for a short period of
time.
If the device for some reason is not able to read RFID tags and the user presses a button (1) or (2) to
start scanning, the device reports an error by beeping, blinking and vibrating as long as the button
is pressed.
While scanning the GSsmart may signal a beep when it is initialized, scanned a genuine tag, encountered a
counterfeit or suspect.
A tag may be scanned multiple times, but is only counted once. The scan is stopped by releasing the scan
button (1) or (2).

3.4.1 Tag file

If you select to log tag reads in the GS Control – Settings view then the following behavior is to be expected.
When the user presses button (1) to start a scanning process then all tag reads are logged as READ.
When the user presses button (2) to start a scanning process then all tag reads are logged as UNDO.
Both types of scanning result is recorded in the same file. A sample of the file is shown below
Time (UTC), EPC, authentication result, READ/UNDO
21-10-2010 06:48:01,33161403d0000340546ca63f,OK,READ
21-10-2010 06:48:07,33161403d00003406fe811a8,OK,READ
21-10-2010 06:48:15,33161403d00003406b072417,Suspect,READ
21-10-2010 06:48:27,33161403d000034043677d7d,Counterfeit,READ
21-10-2010 06:48:33,33161403d00003406f61c1e7,OK,READ
21-10-2010 06:48:44,33161403d00003406f61c1e7,OK,UNDO
21-10-2010 06:48:46,33161403d000034043677d7d,Counterfeit,UNDO
The first column shows the time when the container was read (in UTC time zone).
Next the EPC number of the read tag. This is the unique identification of the tag on the container.
The authentication result is either OK, Counterfeit or Suspect.
The last column lists whether the read was done as a normal READ or an UNDO read.
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