User's Manual

Product Manual - RFID Reader UF70 Certum 87
Chapter 7
Operation
UAK – Kill
EPC transponder
The UAK command starts the asynchronous kill of EPC transponders (polling) at
the respective antenna port. The polling kill EPC is executed as long as it is not
ended or a reset is executed. Transponder messages only appear if EPC
transponders are actually moved in the field. The polling is briefly stopped for
intermediate read requests and is continued after the action. 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.
Example: Kill EPC transponder
>> UAK01FEFEFEFE00
<< uak000
Polling successfully initiated
<< uak0FF010106000005358004D9DDB233083000
EPC transponder successfully made unreadable!
The transponder no longer responds!
Additional example:
>> UAK010000000000
<< uak000
Polling successfully initiated
<< uak0FF0101060B0C090A070805060304112280
Host reader
CMD Reader ID Head ID Kill password Recommission
UAK 1 byte 1 byte 8 bytes 2 bytes
Reader  host (confirmation)
CMD Reader ID Result
uak 1 byte 2 bytes
Reader  host (transponder message)
Overhead response telegram
Data of the participating EPC transponders
1)
CMD
Reader
ID
Direction Ex flag Extensions EPC
Transponder
error code
uak 1 byte 2 bytes 2 bytes 0-12 bytes (2n+1)*2 bytes 2 bytes