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5-7 Tag Communication Command
5-18
<Response Format> * A figure below shows the number of characters.
<Polling Response Format> * A figure below shows the number of characters.
Response immediately after a polling command is issued.
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
Consecutive number of response of tag. For one response, only "01". For several
responses, "02" or more.
ID code
ID code of tag. This is inherent to tag and cannot be rewritten.
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 sev-
eral 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 read bytes.
Hexadecimal code is specified: Number of read bytes x 2.
Termination code
Fixed to "00".
Correct Usage
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
Specified number
Read data
Command
code
Termination
code
(BCC)
* It can be specified whether BCC is enabled or disabled.