Omron CJ1W-V680C11, Руководство пользователя

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SECTION 5
Commun
ic
a
tion
s Spec
if
icat
io
ns
RFID System
User's Manual
SECTION 5
ID Sensor Unit Functions
FIFO Repeat
With a FIFO repeat communications specification, the ID Sensor Unit automatically detects RF Tags
that enter the interrogation zone after a command is sent and communicates with them repeatedly.
Operations are prohibited for RF Tags that have completed communications until they leave the
interrogation zone. After communicating, the ID Sensor Unit returns a response. ID Sensor Unit
processing ends when the Abort Bit is turned ON. The ID Sensor Unit will wait for the next command.
With the FIFO repeat communications specification, even if there are RF Tags in the interrogation zone
that have completed communications, the ID Sensor Unit can still communicate with the next RF Tag.
(Commands will be accepted for an Antenna that is not processing a command.)
When using the V680-D2KF @@ /-D @ KF68/V680S-D2KF6 @ with a FIFO repeat specification, the normal
communications speed will be used regardless of the setting in DM m+0.
FIFO repeat specification cannot be used for communicating with V680-D1KP
@@
RF Tags.
Antenna
RF Tag
An RF Tag that has completed
comm
u nications and for w hich
operations are prohi b ited.
RF Tags are detected as
they enter the interrogation
zone and comm
u nications
are performed.
Interrogation zone
FIFO Repeat specification
RF Tag A
comm
u nications
completed
Res u lts
Comm. A
Comm. B
W aiting for RF Tag
Comm. C
W aiting for ne w RF Tag
Res u lts
Res u lts Res u lts
W aiting for ne w RF Tag
A b ort processing
RF Tag A
RF Tag B RF Tag C
RF Tag B
comm
u nications
completed
Comm u nications w ith
RF Tag
RF Tag mo v ement
FIFO Repeat Specification:
RF Tag mo v ement
Command Exec u tion Bit
A b ort Bit
ID B u sy Flag
N ormal End Flag
Error End Flag