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5-7 Tag Communication Command
5-22
<Response Format> * A figure below shows the number of characters.
DA
Destination (host device) station number. * In the command format, the destination is an
antenna.
SA
Source (antenna) station number.
Termination code
"00": For a normal end. For any other termination codes, refer to "5-10 Termination Code
List".
Response number
Fixed to "01".
Split flag
"Data read length" can be set in an antenna (Refer to Section 5-9-6). An initial value is 256
bytes.
If number of read bytes
≤
data read length, the flag is "A".
If number of read bytes > data read length, the flag is divided and sent to a host and several
responses are made.
"T" for data start. "C" for data continuation. "E" for final data.
Read data
Data read out of a tag. Number of characters of data is as follows:
ASCII code is specified: Number of ready bytes.
Hexadecimal code is specified: Number of ready bytes x 2.
Correct Usage
• Before executing this command, you need to use an ID code read command (I
!
) to check the ID code of the tag.
• For an available range of number of read bytes, check the ID tag memory capacity.
Split flag
Command
code
Code designation
Start address
Number of
read bytes
(BCC)
* It can be specified whether BCC
is enabled or disabled.
Termination
code
Response
number
ID code
Read data
Specified number