User's Manual

Table Of Contents
A response to a successful command will follow this form.
Field Remarks
Command Echo Command number in hex preceded by AAH
Number of Tags filled Number of tags found in the field and filled
Command Status One byte Error status
Message Terminator FFFFH
EXAMPLE
Writes 'A' (41H) to all tags of family 01H, starting at tag address 0005H for
the following next consecutive 40 bytes with four to eight tags expected in
the field.. A timeout of 2 seconds (07D0H = 2000 x 1 msec increments) is
set for the completion of the Fill All Tag. The Anticollision Index is set to 2
so 4 to 8 tags will be expected. Four tags are successfully filled within the
timeout.
Copyright © 2000 Escort Memory Systems
LRP820-Series Long-Range Passive Reader/Writer
65
Command from Host
MSB LSB Remarks
AAH 84H Perform Command 84
01H 02H Tag Family 01/ Index 2
00H 05H Start Address
00H 28H Fill Length
07H D0H Timeout
00H 41H Fill byte
FFH FFH Message Terminator
Response from LRP820
MSB LSB Remarks
AAH 84H Command Echo
04H 08H Ntag/Status
FFH FFH Message Terminator