User's Manual

Product Manual - RFID Reader UF70 Certum 72
Chapter 7
Operation
UKW – Killing all
EPC transponders
The UKW command starts to kill 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. The "kill" command is only performed for
a transponder if the kill password was previously written and matches! The
transponder can no longer be addressed after a successful kill 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: Kill an EPC transponder
>> UKW01FEFEFEFEFE
<< ukw000000101060102030405060708090A0B0C00
>> UKW01FEFEFEFEFE
<< ukw0000A
 The transponder no longer responds!
>> M01
<< m0000A
 The transponder no longer responds!
Host reader
CMD Reader ID Head ID Kill password Recommission
UKW 1 byte 1 byte 8 bytes 2 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
ukw 1 byte 2 bytes 2 bytes 2 bytes 0-12 bytes (2n+1)*2
bytes
2 bytes
IMPORTANT
The respective transponder can no longer be addressed after a successfully
conducted kill command.
This command cannot be undone.