User's Manual

COBALT UHF-SERIES CHAPTER 5: COMMAND PROTOCOLS
PAGE 76 OF 140
COMMAND 0X C2 - DESCRIPTION
The Read EPC Command instructs the controller to retrieve the EPC memory area
of a single tag UHF Class1 Gen2.
C
OMMAND 0X C2 - CBX EXAMPLE
This example instructs the controller to read the EPC memory from a tag. A Timeout
Value of 2 seconds (0x07D0 = 2000 x one-millisecond increments) is set for the
completion of the command.
Command from Host
PARAMETER FIELD MSB LSB
Overall Length of Command
(in words)
0x00 0x06
0xAA
in MSB
Command ID
in LSB (0xC2)
0xAA 0xC2
0x00
in MSB
Node ID
in LSB
0x00 0x01
Timeout Value
0x07 0xD0
Not Used
(0x00, 0x00)*
0x00 0x00
Not Used
(0x00, 0x00)*
0x00 0x00
*NOTE: even when one or more command parameters are not used in a particular
command, the parameter’s two bytes must still be accounted for in the Overall Length.
Include all “zeroes” for these bytes (0x00, 0x00).
CBX SINGLE-TAG RFID COMMAND 0X C2:
READ EPC CODE