User's Manual

Product Manual - RFID Reader UF70 Certum 71
Chapter 7
Operation
ULZ – Locking all
EPC transponders
(defined EPC code)
The ULZ command starts to lock all EPC transponders with the corresponding EPC
code located in the field. Several EPC transponders can be located in the write
area of the antenna when using this command.
1) These data are displayed in the order listed for each identified EPC
transponder.
2) The response of the transponder is optional and only appears at result "00".
3) The result and Ex flag is only available in the first transmitted message in
messages with several frames.
Example: Lock the Kill block of an EPC transponder
>> UWW0100000000000000000002FEFEFEFE
<< uww00000010106BBCC99AA778855663344112200
 Kill password written
 Payload 0x0C00C0; Permalock=1
>> ULZ0106BBCC99AA7788556633441122FFFFFFFF00030C
<< ulz00000010106BBCC99AA778855663344112200
 Since Permalock was set, the kill password cannot be read or written after the
locking process!
>> UWW0100000000000000000002FEFEFEFE
<< uww00000010106BBCC99AA778855663344112284
 Kill password can no longer be written!
Host reader
CMD Reader ID Head ID EPC Access word Payload
ULZ 1 byte 1 byte (2n+1)*2 bytes 8 bytes 6 bytes
Reader host
Overhead response telegram
2)
Data of the participating EPC
transponders
1)2)
CMD
Reader
ID
Frame
ID
Result
3)
Ex flag
3)
Extensions EPC
Transponder
error code
ulz 1 byte 2 bytes 2 bytes 2 bytes 0-12 bytes (2n+1)*2 bytes 2 bytes