User's Manual

Product Manual - RFID Reader UF70 Certum 69
Chapter 7
Operation
UBZ – Erase block
of all EPC
transponders
(defined EPC code)
The UBZ command starts to delete (erase) the defined data range of all EPC
transponders located in the field that have a defined EPC code.
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: 2 data words of the user area of an EPC transponder are deleted
>> M01
<< m000000101060B0C090A0708050603040102
>> UBZ01060B0C090A070805060304010200000000030000000002
<< ubz000000101060B0C090A070805060304010200
Host reader
CMD
Reader
ID
Head ID EPC
Access
word
Memory
bank
Memory
address
Number of
N data
words
UBZ 1 byte 1 byte (2n+1)*2
bytes
8 bytes 2 bytes 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
ubz 1 byte 2 bytes 2 bytes 2 bytes 0-12 bytes (2n+1)*2
bytes
2 bytes