Omron V600 Series User Manual page 85

■ 1:N Communications
Command
Data
code
Command
specifi-
code
Controller No.
cation
x A/H
@ x R D
3 2
Data code specification
R/W Head No.
Read area start address
No. of read bytes
Response
Command
Controller No. End code
code
@ x x R D 0
3 2 2
End code
Read data
R/W Head No.
No. of read
Read area start address
1/2 x x x
x
1 1 4
Specifies the type of code in which to send the read data in the response.
A: ASCII
H: Hexadecimal
Specifies the Read/Write Head with which to communicate.
1: Read/Write Head 1
2: Read/Write Head 2
Specifies the first address from which to read data from the Data Carrier as a four-digit hexadeci-
mal number.
Specifiable range: 0000H to FFFFH
Specifies the number of bytes of data to read from the Data Carrier as a two-digit hexadecimal
number. Up to 256 bytes can be read with one command.
• ASCII specification: 256 bytes (256 characters)
• Hexadecimal code specification: 256 bytes (512 characters)
Specifiable range: 00H to FFH (The maximum of 256 bytes will be read if 00H is specified.)
Read data
0 x x x x
n
Indicates the results of command execution. An end code of 00 is returned for a normal end.
Refer to End Codes for more information.
p.135
The data read from Data Carrier memory. The number of characters will be the same as the num-
ber of read bytes for ASCII data and twice the number of read bytes for hexadecimal data.
bytes
FCS Terminator
x
x x x * CR
2 2
2
FCS Terminator
x x * CR
2
2
Section 5
Communications
RFID System
83
Operation Manual