Omron V700-HMC71 Operation Manual page 13

4) FIFO Auto
Module will await Tag to approach after receiving command, then
communicate with Tag and transmit response. After communication is
completed, Module will prohibit Tag from operating. Module will be on stand
by after response transmission is completed. During communication with
the Tag, there MUST BE AN OPERATIONAL TAG (A TAG THAT IS NOT
PROHIBITED FROM OPERATION) within the communication area. When
this command is executed, Module automatically activates "Oscillation
Mode."
♦ Operation Sequence
After receiving command, the Module waits for the Tag to approach, then
executes process once only after Tag is detected. During processing of the
command, Tag will become inoperative, and thus will not respond to the
next command. Oscillation will continue after command is processed.
When Module receives a STOP command, the command will be
completed.
User →
Command
User ←
Tag
Communication
Tag Operation
5) FIFO Continue
After receiving command, the Module waits for the Tag to approach, then
communicates with the Tag and transmits a response. After communication
is completed, Tag will become inoperative. After transmitting a response,
Module will await Tag to approach again if it receives [ACK], and
CONTINUE UNTIL MODULE RECEIVES A STOP COMMAND. When
communicating with the Tag, THERE MUST ONLY BE ONE ACTIVE TAG
within the communication area.
♦ Operation Sequence
Upon receiving the command, Module awaits Tag to approach. When Tag
is detected, Module executes command and transmits a response.
Afterwards, when [ACK] is received, Module repeats the same operation.
Once process is executed on a Tag, the Tag becomes inoperative, and thus
a Tag will only be processed once. When Module receives a STOP
command, processing will stop.
User →
Command
User ←
Tag
Tag
Detection
Communication
Command Process
Tag Operation
Response 1
1
(Oscillation)
Tag
Command Process
Detection
Tag 1
ACK
Response 1
Tag
Detection
(Oscillation)
Command Process
Tag 1
Command STOP
Tag Detection
NACK
Response 2 Response 2
(Oscillation)
Tag 2
(13/23)
Response
(Truncation
Process)
STOP