User's Manual

Product Manual - RFID Reader UF70 Certum 46
Chapter 7
Operation
Message items
The 4 byte access word is required to access the various memory areas of the
EPC transponder. The LSB byte is transmitted first during the transmission. The
data are interpreted in HEX format. That is, two ASCII characters in the message
equal one byte of data in HEX format.
Example:
0x01020304
ASCII string: "04030201"
2 bytes time in milliseconds specifying how long to read. The LSB byte is
transmitted first during the transmission. The data are interpreted in HEX format.
That is, two ASCII characters in the message equal one byte of data in HEX
format.
Example:
0x0064 (100 ms)
ASCII string "6400"
Command of the message. See table in chapter
 Commands of protocol.
Data words (2 bytes) are always read or written. The data are interpreted in HEX
format. That is, two ASCII characters in the message describe one byte of
transponder data in HEX format.
Example:
HEX transponder data: 0x12, 0x34, 0x56, 0x78 (2 data words)
ASCII transmission: 0x31, 0x32, 0x33, 0x34, 0x35, 0x36,
0x37, 0x38
Transmitted ASCII string: "12345678"
Access word 8 bytes
Bulk time 4 bytes
CMD 1 - 3 bytes
Data words 2 to N*4 bytes