Omron V680-CA5D01-V2 User Manual

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SECTION 5
V600 Commands
RFID System
User’s Manual
SECTION 5
Communications
Polling Function
This section describes command processing when two Antennas are connected to one ID Controller.
With normal AUTO commands, the ID Controller does not return a response while the Tag is not in
range, i.e., the communications path with the host device is busy and the host device cannot send a
command to the other Antenna connected to the same ID Controller.
With a POLLING AUTO command, however, the ID Controller returns a response only when a request
is received from the host device. Therefore, the communications path does not continue to remain in
busy status and the host device can send a command to the other Antenna connected to the same ID
Controller.
1. A POLLING AUTO command is sent to Antenna
1.
2. After receiving the command, the ID Controller
immediately returns a response indicating that
the command was received.
3. A POLLING AUTO command is sent to Antenna
2.
4. After receiving the command, the ID Controller
immediately returns a response indicating that
the command was received.
5. The host device can send subcommands to
query processing status, or abort polling auto
processing.
6. If the Tag is not in range, an out-of-range
response will be returned for the query
subcommand.
7. Read or write processing is performed when the
Tag passes in front of the Read/Write Antenna.
8. After processing has been completed, the ID
Controller returns a response with the processing
results for Antenna 1 to the host device for the
query subcommand.
(Host device)
(Antenna 1)
(Antenna 2)
Subcommand
(Query to
antenna 1)
Subcommand
(Query to
antenna 2)
Subcommand
(Query to
antenna 1)
(ID Controller)
Response
(Antenna 1)
Response
(Antenna 2)
Response
(No Tag near
antenna 1)
Response
(No Tag near
antenna 2)
Read/write
processing
(Antenna 1)
Response
(Antenna 1
processing
completed)
(Tag)
No Tag in area
No Tag in area
No Tag in area
No Tag in area
Tag
Tag out of area
POLLING AUTO
command
POLLING AUTO
command

Omron V680-CA5D01-V2 Specifications

General

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