Omron V680-CA5D01-V2 User Manual

109
RFID System
User’s Manual
SECTION 5
V680 Commands
SECTION 5
Communications
 FIFO Communications Designations (FT/FR)
The ID Controller communicates in turn with each of the Tags entering the Antenna's communications
area. Because all further processing with the Tag is prohibited after communicating, the ID Controller
can only communicate with each new Tag that enters the Antenna's communications area.
If two or more Tags enter the Antenna's communications area at the same time, an error will result.
If a Tag whose access is prohibited leaves the Antenna's communications area, it becomes once again
capable of communicating.
 FIFO Trigger Designation (FT)
After communicating with a Tag, access to that Tag is prohibited and the ID Controller sends a
response to the host device and then waits for another command.
 FIFO Repeat Designation (FR)
The operation of the FIFO trigger designation (FT) is repeated.
Note: FIFO communications designations (FT/FR) cannot be used for communicating with V680-
D1KP@@ Tags.
Tag
Antenna
The ID Controller communicates in
turn with each of the Tags entering
the Antenna's communications
area. If two or more Tags enter the
Antenna's communications area at
the same time, a Tag missing error
is returned.
FIFO command
Host device to Controller
Controller to host device
Tag movement
Response
Communi-
cations
Between Controller and Tag
Tag
- Processing
completed -
- Processing
completed -
Tag C
Response
Wait for a new Tag
Response
Response
Response
AA
command
Tag B
Tag A
FIFO command
Host device to Controller
Controller to host device
Tag movement
Between Controller and Tag
Wait for
a Tag
Wait for a
new Tag
Commu-
nications
A
Commu-
nications
B
Commu-
nications
C

Omron V680-CA5D01-V2 Specifications

General

Brand	Omron
Model	V680-CA5D01-V2
Category	Controller
Language	English