User's Manual

Product Manual - RFID Reader UF70 Certum 55
Chapter 7
Operation
X or URX - Read
data area
The X command starts the reading of a defined data range of the current EPC
transponder.
Several EPC transponders can be located in the reading 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: Read access password (no transponder is present)
>> X0100000000000200000002
<< x0000A  Result "0A" no EPC transponder is present
Example: Read access password (2 transponders)
>> X0100000000000200000002
<< x0000001
0106010203040506070808080909000200000000
01060B0C090A0708050603040102000200000000
Host reader
CMD Reader ID Head ID Access word Memory bank
Memory
address
Number of
data words
X
URX
1 byte 1 byte 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)
Exten-
sions
EPC
Trans-
ponder
error
code
Number
N data
words
Data
words
x
urx
1 byte 2 bytes 2 bytes 2 bytes 0-12
bytes
(2n+1)*
2 bytes
2 bytes 2 bytes N*4
bytes