User's Manual

Table Of Contents
Product Manual - RFID Reader UF80 38
Chapter 7
Operation
A list of EPCs scanned by the reader. The list is represented by a character string.
Every EPC has a length of 12 bytes. In this character string, every byte of the EPC
is represented by 2 ASCII characters. This means that a complete EPC (12 bytes)
is represented by 24 ASCII characters.
The first 2 characters of a character string specify the number of EPCs in the
character string. These two characters describe a byte value in HEX format ("02"
means 0x02).
Example: List with 2 EPCs
02E0070000014CB96677889900E0070000014CB96777889900
EPC 1: 0xE0070000014CB96677889900
EPC 2: 0xE0070000014CB96777889900
The memory areas of the EPC transponder are addressed by 4 byte word
pointers. The LSB byte is always transmitted first during the transmission. The
data are interpreted in HEX format. This means that two ASCII characters in the
message equal one byte of data in HEX format. The exact memory structure can
be derived from the EPCglobal standard.
The EPC transponder has multiple memory banks, which are addressed by
number. The exact memory structure can be derived from the EPCglobal
standard. The data are interpreted in HEX format. This means that two ASCII
characters in the message equal one byte of data in HEX format.
Values:
"00" (0x00) Reserved
"01" (0x01) EPC
"02" (0x02) TID
"03" (0x03) User
List of EPCs 1 - 120 bytes
Memory address 8 bytes
Memory bank 2 bytes