Auto Mode - Omron V720S Series Operation Manual

Communications Method

5-8-2-2 Auto Mode

In auto mode, after receiving an Auto command from the host, the Reader/Writer waits for a Tag to
enter the Antenna's communications area. Since the Reader/Writer is in a busy state between Auto
command reception and the completion of communications with the Tag, it does not accept any
commands other than the Stop or Reset Command during the period.
(Host)
Auto command
Busy
Busy
Command end
(Reader/Writer)
Waits for a Tag to enter
Waits for a Tag to enter
Communications process
Send a response
Note In Auto Mode, the communications path between the host device and the
Reader/Writer is busy until a Tag approaches the Reader/Writer, so the host
device cannot send the next command.
(Tag)
(1) The Reader/Writer receives a
command.
Yet to enter
(2) It waits for a Tag to enter the R/W
Antenna's communication area.
Yet to enter
Tag
(3) When a Tag enters the area, it
communicates with the Tag.
Passes
(4) On completion of communications,
it returns a response to the host.
Section 5-8
5-57