Communications Methods
Section 5-5
5-35
Tag
Controller
Host
Communications processing
1)
The controller receives the Tag
Detection command
2)
The controller communicates with a
Tag and stores the temporary No. of
the Tag.
3)
When communications with all the
Tags in the R/W Antenna’s
communications range are completed,
responses with temporary numbers
are returned in order.
4)
When communications with all of the
Tags in the communications area are
completed, the Controller returns the
detection response (72).
5)
The controller receives the Tag
Selection command with the temporary
No. of the tag with which
communications are to be made.
6)
The controller communicates with the
specified temporary No.
7)
When the controller receives the
Command, it deletes the stored Nos.
Tag Detection Command (RD)
Save response
Detection end response “72”
Communications processing
Selection of Tag(2)
Response regarding Tag (2)
Tag (2)
Temporary No. deletion
Stop Command
Saved response returned
(with temporary number)
Response end reception
Response reception
Response reception
Tag (0)
Tag (1)
Save response
Communications processing
Response reception
