User's Manual

Product Manual - RFID Reader UF70 Certum 62
Chapter 7
Operation
UWW – Write data
range of all EPC
transponders
The UWW command starts to overwrite 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: Overwrite EPC transponder with a new EPC code
>> UWW01000000000102000000060102030405060708090A0B0C
<< uww000000101060B0C090A070805060304010200
Control reading:
>> M01
<< m0000001
01060B0C090A0708050603040102
Example: Overwrite several EPC transponders with a new EPC code
>> UWW01000000000102000000060102030405060708090A0B0C
<< uww0000001
010600000000C006D9DDB233083000
010600000000C006D9DDB233083000
0106BBCC99AA778855663344112200
Control reading:
>> M01
<< m0000001
01060B0C090A0708050603040102
01060B0C090A0708050603040102
Host reader
CMD
Reader
ID
Head ID
Access
word
Memory
bank
Memory
address
Number of N
data words
Data
words
UWW 1 byte 1 byte 8 bytes 2 bytes 8 bytes 2 bytes N*4
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
uww 1 byte 2 bytes 2 bytes 2 bytes 0-12 bytes (2n+1)*2 bytes 2 bytes