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SECTION 5
V600 Commands
RFID System
User’s Manual
SECTION 5
Communications
Commands for Tag Communications
This section describes the commands that are used to communicate with Tags.
READ (RD)
The READ command reads data from a Tag. If there is no Tag in the communications area, the ID Con-
troller will return an error response with an error code of 72 (Tag missing error).
1:1 Protocol
Data designation Specifies the code format when sending the read data response.
“A”: ASCII
“H”: Hexadecimal
Antenna designation Specifies the Antenna with which to communicate.
“1”: Antenna 1
“2”: Antenna 2
Read area start address Specifies the start address of the area in the Tag from which data is to be read from in 4-digit
hexadecimal.
Setting range: 0000
H to FFFFH
No. of bytes to read Specifies the number of bytes of data to read from the Tag in 2-digit hexadecimal.
Up to 256 bytes can be read with one command.
Setting range: 00
H to FF (Specify 00H for 256 bytes.)
• ASCII: 256 bytes (256 characters)
• Hexadecimal: 256 bytes (512 characters)
End code Indicates the execution result for the command.
“00” indicates a normal end.
Refer to List of End Codes for information on other end codes.
p. 235
Read data The data read from the Tag.
The number of characters will be the same as the specified number of bytes to read for ASCII
data and twice that number for hexadecimal data.
RD
A/H 1/2
211 4 2
2
*
CR
Command
code
Terminator
Antenna
designation
×
Read area
start address
No. of bytes
to read
Data
desig-
nation
×
×
×
×
×
Command
Response
RD
...
00
22 n
2
* CR
Command
code
Terminator
End code
×
Read data
×
××
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