Rf Communications Modes - Omron V780 Series User Manual

6 Functions
6-2-3

RF Communications Modes

The processing of communications with RF Tags depends on the RF communications mode that is
specified in the Reader/Writer.
The setting of the communications mode is effective immediately after it is changed. It is saved in inter-
nal memory in the Reader/Writer even after the power supply is turned OFF.
Name
Once
Auto
Focus
Once
The Reader/Writer communicates with an RF Tag when it receives a command from the host device.
When the Reader/Writer is finished communicating with the RF Tag, it returns the communications
results to the host device and waits for another command.
If there is no RF Tag in the communications range when the Reader/Writer executes the command, an
RF Tag missing error will occur. It is therefore necessary to use a sensor or other device to detect the
presence of an RF Tag before a command is executed.
 Single-access Operation
RF Tag
Reader/Writer
6 - 6
Single-access Multiaccess
Supported Supported
Supported Supported
Supported Not supported
UHF RFID System V780-series Reader/Writer User's Manual (Z389)
Description
The Reader/Writer communicates with RF
Tags when a command from the host device
is executed.
When the Reader/Writer receives a command
from the host device, the Reader/Writer waits,
automatically detects an RF Tag entering the
communications range, and communicates
with it.
The Reader/Writer constantly monitors RF
Tags that enter the communications range.
When it receives a command from the host
device, it automatically determines which RF
Tag in the communications range is in front of
the Reader/Writer and communicates with
that RF Tag.