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Heat-resistive RFID System
User's Manual
Section 4
Reading from/Writing to Tags
AUTO READ (AR)
This command reads data from the Tag when the Tag enters the communications area. The Controller
returns a response when communications between the Controller and Tag has been completed. The
host device cannot send other commands until either a response is received or processing is aborted
using the COMMAND PROCESSING ABORT (AA) command.
• Example
Reading two bytes of data (hexadecimal code) from address 0010h in the Tag in the communications
area to Controller No.2.
Name
Details
Data type
Specifies the code format when sending the read data response.
A: ASCII
H: Hexadecimal code
Antenna designation
Always 1
Start address
Specifies the start address of the area in theTag from which data is to be read from in 4-digit hexa-
decimal code.
Setting range: 0000h to 03E7h
Number of read bytes
Specifies the number of bytes to be read from the Tag in 2-digit hexadecimal code.
The number of bytes that can be read at one time is as follows:
Setting range
ASCII: 256 bytes (256 characters), set value: 01h to FFh
Hexadecimal code: 128 bytes (256 characters), set value: 01h to 80h
Name
Details
End code
Indicates the execution result for the command.
Read data
Contains the data read from the Tag.
The number of characters is the number of read bytes for ASCII, and the number of read bytes
×
2
for hexadecimal code.
Command
×
×
A
R
×
×
A/H
1
×
×
2
1
1
4
2
×
×
2
@
×
×
3
*
CR
2
Data
type
Antenna
designation
Start address
Number of
read bytes
FCS
Controller No.
Terminator
Command
code
Response
A
R
0
0
2
2
n
×
×
2
@
×
×
3
*
CR
2
End code
FCS
Terminator
Command code
Controller No.
Read data
Command
0
2
A
R
A
6
1
0
H
1
0
0
2
1
1
4
2
2
@
0
2
*
CR
2
3
Data
type
Antenna
designation
Start address
Number of
read bytes
FCS
Controller No.
Terminator
Command
code
Response
A
R
0
0
2
2
5
1
2
@
0
2
*
CR
2
1
1
2
2
3
Read data
End code
FCS
Terminator
Command code
Controller No.
