User Manual

5-1
The V670 series RF-ID system communicates with a tag ((2)) according to the instruction of a command ((1)) sent from a connected
host device and returns the result to the host device as the response ((3)).
♦
Controller operation status
•
Waiting for command
This refers to the status that the controller does not execute any command process. Then, the controller can accept all the commands
except the subcommands etc. When the controller has accepted any command, the controller enters the command processing status.
•
Command processing
When the command has been accepted, the next command is ignored until the process of such accepted command is completed. How-
ever, a command process termination command and reset command can be accepted always.
Host Device
Controller
Communication
Antenna
Tag
Communication between
the antenna and tag
(1)
(3)
(2)
Command
Response
Chapter 5 Control From Host Device
5-1 Controller Operation Status