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3) Multi Once
The reader reads multiple tags for a specified period. At the end of the specified period, it returns read results
and finishes the transaction. If the reader does not detect any tag during the specified period, it returns a
response meaning there is no tag.
< A sequence when the reader detects tags for the specified period.>
< A sequence when the reader carries out the transaction and there is no tag. >
Host
Reader
Tag
Command
Read tag
Process
Detecting and reading tag
Tag
C
Response
Tag No.:3
Tag ID:A,B,C
Period (Timeout)
Tag
A
Tag
B
Host
Reader
Tag
Command
Read tag
Process
Detecting and reading tag
Tag
C
Response
Tag No.:3
Tag ID:A,B,C
Tag
A
Tag
B
Host
Reader
Tag
Command
Read tag
Process
Detecting and reading tag
Response
Tag No.:0
Tag ID:None
Host
Reader
Tag
Command
Read tag
Process
Detecting and reading tag
Response
Tag No.:0
Tag ID:None
Period (Timeout)
At the end of the
specified period , the
reader returns a response
(reporting the read tags’
data) to the host.
At the end of the
specified period, the
reader returns a response
(reporting “no tag”) to
the host.