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3-9
Section
Communications Distance Setting
31
settings are not the same, the Slave Controllers will not be able to synchro-
nize properly and their ERR indicators will go ON. Set the Master/Slave set-
tings from the host device before beginning communications with the ID
Tags.
3-8
Energy-saving Mode
The RFID System can be set to energy-saving mode.
If it is possible to send commands only during communications, the Antenna
power can be shut down to reduce the total power consumption of the RFID Sys-
tem. In energy-saving mode, the power consumption of the RFID System is
approximately 30% of that in normal operation. Set energy-saving mode with the
Controller’s DIP switch.
If the Controller is set to energy-saving mode, the Antenna will have output only
at the time of communications. This mode is available while a communications
command is issued to select the single trigger, single auto, or multi-trigger op-
tion.
Item
Mode
Normal mode
Energy-saving mode
Power consumption
High
Low
Antenna output during
communications
ON
Antenna output during
standby periods
ON
OFF
Command group A
Available
Command group B
Available
Not available
Command group C
Not available
Available
Other commands
Available
Note
1. Command Group A
Single trigger, single auto, and multi-trigger
Command Group B
Single repeat, FIFO trigger, FIFO auto, FIFO repeat, and multi-repeat
Command Group C
Selective access
2. Do not set the Controller to energy-saving mode if the single repeat, FIFO
trigger, FIFO auto, FIFO repeat, or multi-repeat option is selected, otherwise
a command error will result.
3-9
Communications Distance Setting
The RFID System allows a selection of either long-distance mode (automatic
selection of amplification factor) or stable-communications mode (no change in
amplification factor). The communications distance setting is made on the Con-
troller’s DIP switch.
In order to perform long-distance communications, the RFID System automati-
cally selects the amplification factor when the Antenna receives signals from the
ID Tag. If the ID Tag is far, the amplification factor increases automatically in or-
der to receive the weak signal of the ID Tag.
If there is excessive noise (particularly, air-conditioner noise), the automatic
selection of the amplification factor should be suppressed. If this automatic
selection is suppressed, the RFID System cannot communicate with far ID Tags
but the RFID can perform stable communications even under an environment
where noise is prevalent.
Long-distance Mode
Stable Communications
Mode
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