Omron V600 Series User Manual page 98

Section 5
Communications
■ 1:N Communications
Command
Controller No.
@ x
3
Data code specification
R/W Head No.
Read area start address
No. of read bytes
Response
Controller No. Command code
x
@ x
3
End code
Read data
RFID System
96
Operation Manual
Data code
R/W Head No.
specifica-
Read area start address
Command code
tion
A / H 1 / 2 x
x A R
2 1 1
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.
Specifiable range: 00H to FFH (The maximum of 256 bytes will be read if 00H is specified.)
• ASCII specification: 256 bytes (256 characters)
• Hexadecimal code specification: 256 bytes (512 characters)
End code Read data
0 0
A R x x
2 2
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 number of
read bytes for ASCII data and twice the number of read bytes for hexadecimal data.
No. of read
F C S
bytes
x x x x
x x
4 2 2
FCS Terminator
*
x x x x
n 2 2
Terminator
x * C R
2
CR