RFID Communications
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.
Command from Host
Field | Content |
Header | 0202H |
|
|
Command Size | 000BH |
|
|
Command Code | 06H |
|
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Start Address | 0000H |
|
|
Number of Bytes | 0004H |
|
|
Timeout, 2 seconds | 07D0H |
|
|
Data to write to | 52H |
address 0000H |
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|
|
Data to write to | 46H |
address 0001H |
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|
|
Data to write to | 49H |
address 0002H |
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|
|
Data to write to | 44H |
address 0003H |
|
|
|
Checksum | EEH |
|
|
Terminators | 03H |
|
|
Response from Controller
Field | Content |
Header | 0202H |
|
|
Response Size | 0001H |
|
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Command Echo | 06H |
|
|
Checksum | F8H |
|
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Terminators | 03H |
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|
6.5.4 ABxF Command 07H: Read Tag Serial Number
DESCRIPTION
Command 07H retrieves the
DISCUSSION
Each
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.
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 | |
|
|
Checksum | Optional checksum |
|
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Terminator | 03H |
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|
95 | LRP2000 Passive Reader/Writer |