Omron V680 series User Manual page 94

Section 3
Commands
 AUTO READ (AR)
This command reads data from the RF Tag when the RF Tag enters the interrogation zone. The Hand-
held Reader/Writer responds when the communications between the Hand-held Reader/Writer and RF
Tag have ended.
Command
Processing Area Number: 1
Command
Data
setting
code
A / H
A R
2 1
Processing Area Number: 2
Command Data
setting
code
A R A / H
2 1
Data setting
Processing area number
setting
Read area start address
Number of read bytes
RFID System
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User's Manual
Processing
area
Read area Number of
number
start address read bytes
setting
1
× × × × ×
1 4
Processing
area
Read area Number of
number
start address read bytes
setting
2 × × × × ×
1 4
Area (1) setting
Specifies the code format used to send responses for write data.
A: ASCII
H: Hexadecimal
When multiple processing areas are used, ASCII and hexadecimal can be specified at the same
time within a single command frame.
Specifies the processing area number.
Setting range: 1 to 9, A (A = 10)
Specifies the start address of the area in the RF Tag to be read from in 4-digit hexadecimal.
Setting range: 0000 to FFFF hex
When multiple processing areas are used, specify the areas in order starting from the smallest
address. The same area cannot be specified twice.
When multiple processing areas are used, specifies the number of bytes to be read from the RF
Tag in 2-digit hexadecimal.
The maximum number of bytes that can be read at one time is 256 bytes.
• ASCII: 256 bytes (256 characters)
• Hexadecimal: 256 bytes (512 characters)
Setting range: 00 to FF hex (00 = 256 bytes)
When multiple processing areas are used, set so that the total number of bytes to be read for all
areas is within 256 bytes, as follows:
Area (1) bytes +...+ Area (N) bytes ≤ 256 bytes
Terminator
C R
×
2 2
Data Read area
setting start address
× A / H × × × ×
2 1
4
Area (2) setting
Number of
read bytes Terminator
× × C R
2 2