User's Manual

V750 RFID READER/WRITER, ANTENNA 2006-06, REV.C
OPERATION MANUAL
43 of 110
©OMRON CORPORATION 2006
< Operation timing of communication sequence>
(1)Single Once
The reader communicates with a single tag at a time (1:1 communication). When an antenna detects first tag, the reader
returns response and terminates transaction (1 response/ 1 transaction). If the reader does not detect any tag, it repeats the
transaction until timeout. In this case, the response indicates “0” as the tag number. If the timeout is specified as “0”, the
transaction will repeat until the termination command has been sent.
2) Single Repeat
The reader communicates with a single tag at a time (1:1) and repeats the communication transaction. When the reader
detects first tag, it returns response to the host and still repeats its transaction. Whenever it detects unread tag, it returns
read results to the host. It repeats the sequence until the termination command has been sent.
Single Once：
Res
p
onse*
Command
Se
q
1
Host→Reader
Host← Reader
Reader←→ Ta
g
T
ag
(
Existence of ta
g)
Timeout
* 0 = ∞
(Specified
antenna 1)
Se
q
2
(Specified
antenna2
)
Se
q
n
(Specified
antenna ｎ)
･･･
Res
p
onse
* Response of tag detection=0
Single Repeat：
Respons
Command
Se
q
1
* Tag with same ID does not reply
Host→Reader
Host←Reader
Reader←→ta
g
T
ag
Existence of ta
g
(
Antenna 1
)
Se
q
2
(
Antenna 2
)
Se
q
n
(
Antenna n
)
･･･
Res
p
onse*
Se
q
1
Termination
T
ag
Se
q
2
Termi nat i on
Response
Termi nati on
t ransact i on