RFID Communications
6.4.15 ABxS Command 87H: Read Tag SN All
DESCRIPTION
Command 87H retrieves the
DISCUSSION
Each
Field | Remarks |
Command | Command number in hex preceded by AAH |
|
|
Family ID | Tag Family ID - 00H = all tags |
|
|
Reserved | 00H |
|
|
Timeout | Timeout value given in 1 ms units (001EH - FFFEH) |
|
|
Message Terminator | FFFFH |
|
|
Example
This example reads the
Command from Host
MSB | LSB | Remarks |
AAH | 87H | Perform Command 87 |
|
|
|
01H | 00H | Family ID/Reserved |
|
|
|
07H | D0H | |
|
|
|
FFH | FFH | Message Terminator |
|
|
|
Response from Controller
MSB | LSB | Remarks |
AAH | 87H | Command Echo |
|
|
|
00H | 1EH | First SN byte |
|
|
|
00H | 6EH | Second SN byte |
|
|
|
00H | 3CH | Third SN byte |
|
|
|
00H | D2H | Fourth SN byte |
|
|
|
00H | 00H | Fifth SN byte |
|
|
|
00H | 01H | Sixth SN byte |
|
|
|
00H | 04H | Seventh SN byte |
|
|
|
00H | E0H | Eighth SN byte |
|
|
|
FFH | FFH | Message Terminator |
|
|
|
AAH | FFH | Termination Packet |
|
|
|
FFH | FFH | Message Terminator |
|
|
|
LRP2000 Passive Reader/Writer | 76 |