User's Manual

Table Of Contents
ABxF Command 96 (96H): SN Block Write
DESCRIPTION
Write a block of data to an RFID tag identified by its serial number.
DISCUSSION
The SN Block Write command is used to write segments of data to contigu
-
ous areas of tag memory. The timeout value is given in 1 msec increments
and can have a value of 1EH to FFFEH (65,534 ms). When the timeout is
set to 0, the LRP830 will return a syntax error.
The SN Block Write consists of a start address followed by the data stream
to be written to the RFID tag specified by the serial number given in the
command. If the block size exceeds the last tag address, the LRP830 will
return an invalid format error message (error code 21H).
Field Content
Header <STX><STX>
Command Size Command length in bytes excluding the header, packet size, checksum and
terminator bytes.
Command 96H
Family ID Tag Family ID - 00H = all tags
Anticollision Index Number of tags expected
Start Address 2-byte value for the starting tag address
Block Size 2-byte value for the length of the write in number of bytes
Timeout 2-byte timeout value in 1 ms increments (1EH - FFFEH).
Tag Serial Number 8-byte tag serial number
Data Data bytes to be written
Checksum Optional Checksum
Terminator <ETX>
Copyright © 2000 Escort Memory Systems
134 LRP830-Series Long-Range Passive Reader/Writer