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5-1
The V690 Series REID system communicates with a tag according to the instruction of a command (1) sent from a host device and
returns the result to the host device as the response (3).
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Operation mode and setting mode of antenna
Two modes are available in the operation of antenna. Available commands vary depending on the mode. Refer to Section 5-4.
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Tag status after a command has been executed
Two modes are available after a command has been executed.
Mode
How to change mode
Description
Host communication
condition
Antenna
station number
Operation
mode
Disconnect the two antenna
terminals "+P" and "-P" and
reset the power supply (turn
off the power supply once
and turn on it again).
Use for a normal opera-
tion.
Setting can be
changed.
(Refer to Section 5-9-
7.)
00 to 31 (Initial
value 00)
Setting mode
Short-circuit the two
antenna terminals "+P"
and "-P" and reset the
power supply.
• A simplified communication func-
tion (without connection to a host
device) is available. Refer to Sec-
tion 3-4.
• A tag communication command
and radio wave transmission ON/
OFF command cannot be used.
Fixed.
(Refer to Section 5-9-
7.)
Use when the host
communication condi-
tion is unknown.
99
Mode
How to change mode
Description
Sleep state
Specify S
!
or R
!
in communication designation
with a command.
• Tag battery power can be saved.
• A tag cannot be started in 0.2 seconds immedi-
ately after sleep.
• Use for FIFO (First-In First-Out). Refer to (3) of
Section 5-2-1.
Standby state
Specify W
!
or C
!
in communication designation
with a command.
• Use when several commands are executed con-
secutively to one tag.
Host Device
Communication line
Command
Response
Communication between
the antenna and tag
Read/Write antenna
ID Tag
Chapter 5 Control from Host Device
5-1 Operation Status of Read/Write Antenna and ID Tag