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Section 3
V6
80
C
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mm
an
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RFID System
User's Manual
Section 3
Commands
READ WITH ERROR CORRECTION (QR)
Reads the data in the area written by the WRITE WITH ERROR CORRECTION (QW) command from
the RF Tag. Be sure to read data from the same area written by the WRITE WITH ERROR CORREC-
TION (QW) command.
Communications specifi-
cation
Specifies the method for communicating with the RF Tag.
For details on communications specifications, refer to
Communications with the RF Tag
.
Data setting
Sets the code format used to send responses for read data.
A: ASCII
H: Hexadecimal
Fixed value
Always 1.
Read area start address
Specifies the start address of the area to be read from the RF Tag in 4-digit hexadecimal.
Setting range: 0000 to FFFA hex
Number of bytes to read
Specifies the number of bytes to be read from the RF Tag in 4-digit hexadecimal. The maximum
number of bytes that can be read at one time is 510 bytes, as follows:
Setting range: 0001 to 01FE hex
•
ASCII: 510 bytes (510 characters)
•
Hexadecimal: 510 bytes (1,020 characters)
End code
Indicates the execution result for the command.
The end code 00 indicates normal completion.
For details on end codes, refer to
.
Fixed value
Always 1.
Resend flag
Always 0.
Read data
Specifies the data read from the RF Tag.
The characters in ASCII indicate the number of read bytes and the characters in hexadecimal indi-
cate the number of read bytes x 2.
Command
Q
R
1
2
2
C R
A / H
×
×
4
×
×
×
2
1
1
×
×
×
×
×
4
Command
code
Data
setting
Number of bytes
to read
Terminator
Read area
start address
Communica-
tions
specification
Fixed
value
Response
Q
R
0
2
2
C R
1
0
0
2
1
1
×
×
×
…
×
n
Terminator
Read data
End code
Command
code
Fixed
value
Resend
flag
