RFID Communications
95 LRP2000 Passive Reader/Writer
Example
Writes four bytes of data to the tag starting at address 0000H. A timeout of 2 seconds (07D0H = 2000 x 1
ms increments) is set for the completion of the Write.
6.5.4 ABxF Command 07H: Read Tag Serial NumberDESCRIPTION
Command 07H retrieves the eight-byte tag serial number.
DISCUSSION
Each ISO-15693 compliant tag has a unique serial number (over 280 trillion possibilities). This number
cannot be changed and is not part of the available read/write address space of a tag.
CAUTION:The presence of multiple tags in the field will not cause errors, however there is no general way
to predict which tag the controller will read first.
Command from Host Response from Controller
Field Content Field Content
Header 0202H Header 0202H
Command Size 000BH Response Size 0001H
Command Code 06H Command Echo 06H
Start Address 0000H Checksum F8H
Number of Bytes 0004H Terminators 03H
Timeout, 2 seconds 07D0H
Data to write to
address 0000H 52H
Data to write to
address 0001H 46H
Data to write to
address 0002H 49H
Data to write to
address 0003H 44H
Checksum EEH
Terminators 03H
Field Content
Header 0202H
Command Size Packet length in bytes excluding the header, command size, checksum, and terminator bytes. 0003H
for this command
Command 07H
Timeout 2-byte timeout value in 1 ms increments (1EH - FFFEH)
Checksum Optional checksum
Terminator 03H