User's Manual

Product Manual - RFID Reader UF70 Certum 70
Chapter 7
Operation
ULW – Locking all
EPC transponders
The ULW command starts to lock the defined data range of all EPC transponders
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 ACCESS block of an EPC transponder
 Payload 0x0300C0; Permalock=1
>> ULW01FFFFFFFFC00003
<< ulw00000010106BBCC99AA778855663344112200
 Since Permalock was set, the kill password cannot be read or written after the
locking process!
>> UWW0100000000000200000002FFFFFFFE
<< uww00000010106BBCC99AA778855663344112284
>> UWW01FFFFFFFF000200000002FEFEFEFE
<< uww00000010106BBCC99AA778855663344112284
 Access area can no longer be written!
Host reader
CMD Reader ID Head ID Access word Payload
ULW 1 byte 1 byte 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
ulw 1 byte 2 bytes 2 bytes 2 bytes 0-12 bytes (2n+1)*2
bytes
2 bytes