User's Manual

Product Manual - RFID Reader UF70 Certum 83
Chapter 7
Operation
UAZ – Polling Write
Masked Data
The UAZ command starts the asynchronous masked writing (polling) of a defined
data range of EPC transponders at the respective antenna port. The polling write
masked data 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.
1) These data are displayed in the order listed for each identified EPC
transponder.
Example: 1 data word of the EPC masked write (memory bank 01, address
02000000, length 01, mask FFFF)
>> M01
<< m000000101060B0C090A0708050603040102
 EPC: 02010403060508070A090C0B
>> UAZ01000000000102000000011122FFFF
<< uaz000
Polling successfully initiated
<< uaz000
<< uaz0FF0101060B0C090A070805060304010200
<< uaz0000101060B0C090A07080506030401020500
<< uaz0FF0101060B0C090A070805060304112200
Host reader
CMD
Reader
ID
Head
ID
Access
word
Memory
bank
Memory
address
Number of
N data
words
Data
words
Mask
UAZ 1 byte 1 byte 8 bytes 2 bytes 8 bytes 2 bytes N*4
bytes
N*4 bytes
Reader  host (confirmation)
CMD Reader ID Result
uaz 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
Reading
cycles
uaz 1 byte 2 bytes 2 bytes 0-12 bytes (2n+1)*2 bytes 2 bytes