Omron V750-BA50D04-SG-MY User Manual page 48

2) Single Repeat
The reader communicates with a single tag at a time (one-to-one communication) and repeats the
communication transaction. When the reader detects the first tag, it returns response to the host, then it begins
the next transaction repeatedly. Whenever it detects an unread tag, it reads the tag and returns read results to
the host. It repeats the transaction until the termination command has been sent.
< A sequence when the reader detects tags one by one as it repeats the transaction.>
Command Command
Read tag Read tag
Host Host
Reader Reader
Reading tag Reading tag
Tag Tag
< A sequence when the reader carries out the transaction repeatedly and there is no tag. >
Period (Timeout)
Command Command
Read tag Read tag
Host Host
Reader Reader
Tag Tag
Period (Timeout)
Response Response
Tag No.:1 Tag No.:1
Tag ID:A Tag ID:A
Process Process Process Process
Reading tag Reading tag
Tag Tag
A A
Period (Timeout)
Response Response
Tag No.:0 Tag No.:0
Tag ID:None Tag ID:None
Process Process
Reading tag Reading tag
Response Response
Tag No.:1 Tag No.:1
Tag ID:B Tag ID:B
Process Process
Reading tag Reading tag
Tag Tag Tag Tag
B B C C
Response Response
Tag No.:0 Tag No.:0
Tag ID:None Tag ID:None
Process Process
Reading tag Reading tag
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Just after the reader
communicates a tag, it
returns a response
(reporting the read tag
data) to the host.
At the end of the specified
period, the reader returns a
response (reporting "no
tag") to the host.