User Manual

CHAPTER 7: RFID COMMANDS
COBALT HF RFID CONTROLLERS OPERATOR’S MANUAL
P/N: 17-1320 REV 01 (03-06) PAGE 73 OF 116
C OMMAND 04 (FILL TAG)-CBX C OMMAND E XAMPLE
This example instructs the Cobalt Controller to fill an entire tag with the ASCII character
'A' (Data Byte Value 0x41) starting at the beginning of the tag (address 0x0000). A
Timeout Value of 2 seconds (0x07D0) is set for the completion of the command.
Command from Host
PARAMETER FIELD MSB LSB
Overall Length of Command
(in words)
0x00 0x07
AA
in MSB
Command ID
in LSB: (0x04)
0xAA
0x04
00
in MSB
Node ID
in LSB (Cobalt –IND = 01)
0x00 0x01
2-byte
Timeout Value
measured in
ms (0x07D0 = 2 seconds)
0x07 0xD0
Start Address
0x00 0x00
Fill Length
0x00 0x00
Fill Byte
in MSB (A = 0x41)
00
in LSB
0x41 0x00
Note: The “Fill Length” in the Tag Fill Command represents the number of bytes to fill on
the tag, not the length of the ‘fill byte data’ provided in the command, which is always just
a single byte.
Response from Controller
DESCRIPTION MSB LSB
Overall Length of Response
(in words)
0x00 0x06
AA
in MSB
Command Echo
in LSB (0x04)
0xAA
0x04
00
in MSB
Node ID Echo
in LSB
(Cobalt –IND = 0x01)
0x00 0x01
Month
and
Day
timestamp
Month DOM
Hour
and
Minute
timestamp
Hour Minutes
Seconds
timestamp in MSB
00
in LSB
Seconds 0x00