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5-2 Communication Operation Sequence
5-8
5-2-3 Other Communication Mode
(1) Selective Access
Every tag has an inherent ID code which cannot be rewritten. By using this ID code, communication can be performed to a particular
tag of those in an antenna communication area.
(2) Radio Wave Transmission ON mode
Usually, an antenna transmits a radio wave after receiving a command from a host device. When the Radio Wave Transmission ON
mode of antenna is enabled, regardless of any command from a host device, the antenna transmits a radio wave always. In the Radio
Wave Transmission ON mode, an application that the ID tag moves fast may be available.
Mode
Initial value
How to change mode
Radio wave transmission status
Radio Wave
Transmission
OFF mode
The antenna does not transmits a radio wave when
it waits for a command. When the antenna accepts
a communication command, the antenna transmits
a radio wave and communicate with a tag. When
the communication has ended, the antenna stops
transmitting a radio wave.
Radio Wave
Transmission
ON mode
Radio Wave Transmission ON (A1) Refer to
Section 5-9-1.
How to switch to the Radio Wave Transmis-
sion OFF mode
• Radio Wave Transmission OFF command
(A0) Refer to Section 5-9-1.
• Reset command (C0) Refer to Section 5-9-2.
• Reset the power supply.
Regardless of any command from a host
device, the antenna transmits a radio
wave always.
Executes ID Code Read (I
!
)
Refer to Section 5-7-2.
Reads an ID code of a tag in the communication area.
Executes Tag Designation Read command
Refer to Sections, 5-7-3, 5-7-5 and 5-7-7.
Uses an ID code and executes a command to a designated tag.
Executes Radio Wave Transmission ON (A1)
Refer to Section 5-9-1.
Executes Read/Write