Omron V680S Series User Manual page 40

Section 2
Names and Functions of Components
 SET TAG COMMUNICATIONS CONDITIONS Query
This query sets parameters that are related to the operation of communications with RF Tags.
Any changes to the settings that are made with this query are effective immediately. (There is no need
to reset the Reader/Writer to save the settings.)
 Communications Option Setting
You can set the communications option of the Reader/Writer to Once, Auto, or FIFO Trigger.
Once (default)
Auto
FIFO Trigger
 RF Tag Communications Speed Setting
You can set the speed for communications between the Reader/Writer and RF Tags.
High speed (default)
Normal speed
 Write Verification
You can set whether to verify write processing.
Enabled (default)
Disabled
 Communications diagnostic
You can set whether to the communications diagnostic of the Reader/Writer.
Disabled (default)
Enabled
RFID System
38
User's Manual
When the Reader/Writer receives a query, it returns a response.
When the Reade/ Writer receives a query, it waits until an RF Tag is detected within the
interrogation zone, and then returns a response.
When the Reader/Writer receives a query, it returns a response.
After communicating, all further operations with that RF Tag are prohibited. The Reader/Writer
communicates with only one operable RF Tag in the interrogation zone.
If an RF Tag that has been communicated with for a Once specification is within the interrogation
zone, the Reader/Writer will not communicate with it a second time.
This setting reduces the communications time by reading more than one block at the same time
with an air interface. However, if errors are detected during communications due to ambient noise
or other factors, processing is redone from the beginning, which can actually increase the
communications time.
This setting provides more stable communications quality by reading one block at a time, in the
same way as for the earlier V680. Although the normal communications time is longer, processing
can be continued during communications if errors are detected due to ambient noise or other
factors, which can actually reduce the communications time.
After processing a write operation, the memory area that was written in the RF Tag is read and
verified to confirm that the write operation was performed normally.
Write processing is not verified.
The Reader/Writer does not perform communications diagnostic.
This function diagnoses the communications leeway whenever the Reader/Writer communicates
with an RF Tag, displays the results on an operation indicator, and reports the results to the host
device. It will help you achieve a more stable Reader/Writer and RF Tag installation and enable
monitoring the status of operations.