Omron V780 Series, User Manual

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6 Functions
UHF RFID System V780-series Reader/Writer User’s Manual (Z389)
6-3 R
eader/W
rit
er Con
tro
ls
6
6-3-4 RESET
FO
CUS
 Stopping Command Operation after RF Tag Detection
If the Reader/Writer receives a command to stop operation after it detects an RF Tag, a “communica-
tions aborted” communications result is returned. (For a DATA WRITE command, the contents of the
RF Tag may have been changed.)
You can use a RESET FOCUS command to clear the target level information in the Reader/Writer for
all monitored RF Tags during operation in Focus Mode.
After the Reader/Writer completes reception of the RESET FOCUS command, it returns a response,
clears the information, and then starts monitoring for RF Tags again.
6-3-4 RESET FOCUS
Host device
Reader/Writer
RF Tag movement
STOP
RF Tag communications processing Processing to stop communications
RF Tag
Response Response
Acknowledgement
response
Communications aborted
Host device
Reader/Writer
RF Tag movement
RESET FOCUS
Response
Idle: Monitoring RF Tags Idle: Monitoring RF Tags
Target level cleared.
RF Tag A
RF Tag B
RF Tag C
Target level
Time