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5-7 Tag Communication Command
5-19
5-7-2 ID Code Read
Reads an ID code from a tag. The ID code is inherent to a tag and cannot be rewritten.
<Command Format> * A figure below shows the number of characters.
Command code and communication designation
<Response Format> * A figure below shows the number of characters.
DA
Destination (antenna) station number. "00" to "31". This can
be modified in "5-9-8 Station Number Setting".
Initial value "00"
SA
Source (host device) station number. "80" to "89". If only one host device is used, specify "80".
Command code
Specify according to the table below.
Communication designation
Command
Tag status after
execution
Com-
mand
code
Communi-
cation des-
ignation
Remarks
Single Trigger
Sleep
I3
SU
Single Trigger
Standby
WU
Any other command can be executed
to the tag immediately after it.
Multi Trigger (approximately 4 tags)
Sleep
SS
Multi Trigger (approximately 8 tags)
SM
Multi Trigger (approximately 16 tags)
SL
Single Auto
Sleep
I6
SU
Single Auto
Standby
WU
Any other command can be executed
to the tag immediately after it.
Polling Single Auto
CU
Single Repeat
Sleep
I9
SU
FIFO
Multi Repeat (approximately 4 tags)
SS
Multi Repeat (approximately 8 tags)
SM
Multi Repeat (approximately 16 tags)
SL
Polling Single Repeat
RU
For a query command of polling, refer
to "5-8-3 Request to Respond".
Polling Multi Repeat (approximately 4 tags)
RS
Polling Multi Repeat (approximately 8 tags)
RM
Polling Multi Repeat (approximately 16 tags)
RL
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.
Command
code
Communica-
tion designa-
tion
(BCC)
* It can be specified whether BCC is enabled or disabled.
Command
code
Termination
code
Response
number
ID code
(BCC)
* It can be specified whether BCC is enabled or disabled.