User Manual

CHAPTER 7: RFID COMMANDS
COBALT HF RFID CONTROLLERS OPERATOR’S MANUAL
P/N: 17-1320 REV 01 (03-06) PAGE 82 OF 116
C OMMAND 07 (READ TAG ID) – CBX C OMMAND E XAMPLE
This example instructs the controller to retrieve a tag’s ID. In this example the 8-byte tag
ID number is E0040100002E16AD. A Timeout Value of 2 seconds is set for the
completion of this command.
Command from Host
PARAMETER FIELD MSB LSB
Overall Length of Command
(in words)
0x00 0x06
AA
in MSB
Command ID
in LSB (0x07)
0xAA
0x07
00
in MSB
Node ID
in LSB (Cobalt –IND = 01)
0x00 0x01
2-byte
Timeout Value
measured in ms
(0x07D0 = 2 seconds)
0x07 0xD0
Not Used:
(0x00, 0x00)
0x00 0x00
Not Used:
(0x00, 0x00)
0x00 0x00
Response from Controller
PARAMETER FIELD MSB LSB
Overall Length of Response
(in words)
0x00 0x0A
AA
in MSB
Command Echo
in LSB
0xAA
0x
07
00
in MSB
Node ID Echo
in LSB
0x00 0x01
Month
and
Day
timestamp
Month DOM
Hour
and
Minute
timestamp
Hour Minutes
Seconds
timestamp in MSB
Number of Tag ID Bytes Retrieved
in LSB
(0x08)
Seconds 0x08
Tag ID
(bytes 1 & 2)
0xE0 0x04
Tag ID
(bytes 3 & 4)
0x01 0x00
Tag ID
(bytes 5 & 6)
0x00 0x2E
Tag ID
(bytes 7 & 8)
0x16 0xAD