User Manual

Table Of Contents
Standard RFID Interface
30 LRP76 Long Range Passive Reader/Writer
5.6.7 Command E (0EH) Read SN and Data
DESCRIPTION
Command E reads the tag's Serial Number along with tag data, and
sends it back to the host in one response packet. If the length is zero
(0), then only the Serial Number is returned to the host.
EXAMPLE
The below example reads the SN and one data byte at tag address
five (05H), with a two second timeout. The tag data is 20H.
Field Description
Header AAH
Command Command number in hex
Start Address The tag address where the read will start
Read Length The number of tag addresses to be read
Timeout Timeout value given in 1 ms units (1EH - FFFEH)
Message
Te r mi n at o r
FFFFH
Command from the Host Response from the LRP76
MSB LSB Remarks MSB LSB Remarks
AAH 0EH Perform Command E AAH 0EH Command Echo
00H 05H Start Address 00H 7DH Serial Number byte 1
00H 01H Read Length 00H EFH Serial Number byte 2
07H D0H 2 Second Timeout 00H 4CH Serial Number byte 3
FFH FFH Message Terminator 00H 00H Serial Number byte 4
00H 00H Serial Number byte 5
00H 00H Serial Number byte 6
00H 00H Serial Number byte 7
00H 01H Serial Number byte 8
00H 20H Data byte
FFH FFH Message Terminator