User's Manual

COBALT UHF-SERIES CHAPTER 5: COMMAND PROTOCOLS
PAGE 62 OF 140
COMMAND 0X C4 – DESCRIPTION
The Multi-Tag Read EPC Code is used to retrieve the EPC data from all tags within
RF range. A final termination packet is sent when the Timeout Value expires.
C
OMMAND 0X C4 - ABX F AST EXAMPLE
This example instructs the controller to read the EPC data from each tag in range. A
Timeout Value of 3 seconds (0x0BB8 = 3000 x 1msec increments) is set for the
completion of the command.
Command from Host
PARAMETER FIELD CONTENT
Command Header
0x02, 0x02
Command Size
0x0003
Command ID
0xC4
Timeout Value
0x0B, 0xB8
Command Terminator
0x03
Response for Each Tag Read
PARAMETER FIELD CONTENT
Response Header
0x02, 0x02
Response Size
0x000D
Command Echo
0xC4
EPC Read Data Byte 1
<D01>
EPC Read Data Byte 2
<D02>
. . .
. . .
EPC Read Data Byte 12
<D12>
Response Terminator
0x03
MULTI-TAG RFID COMMAND 0X C4:
READ EPC CODE