Sec
tion 6
RF Ta
g Co
mm
u
n
icat
ions
Section 6
Functions
105
RFID System
User's Manual
(Modbus TCP)
FIFO Trigger
After communicating with an RF Tag, access to that RF Tag is prohibited. The Reader/Writer sends a
response to the host device and then waits for another query.
FIFO Trigger communications cannot be used for communicating with V680-D1KP
RF Tags.
The Reader/Writer communicates in turn with each of the RF
Tags that enters the communications field. If two RF Tags
enter the communications field at the same time, a collision
occurs, resulting in an RF Tag communications error.
FIFO trigger
communications
RF Tag
Processing completed.
RF Tag
Indicates that access is prohibited.
Reader/Writer
Host device
Reader/Writer
Host device
Reader/Writer
Reader/Writer
RF Tag
RF Tag operation
Communications
processing
Response
