Omron V680S Series, Руководство пользователя

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112
Sec
tion 6
Sett
ing Que
ries
RFID System
User's Manual
(Modbus TCP)
Section 6
Functions
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.
“ID code” is a unique ID previously stored in each RF tag. By performing ID code check, even if an RF tag with another
ID code enters the communication area during communication processing, it does not communicate with that RF tag.
Refer to RF Tag Communications Time (for Reference Only) in Section 11 Appendices for details of Communications Time.
p.274

RF Tag Communications Speed Setting
You can set the speed for communications between the Reader/Writer and RF Tags.

Write Verification
You can set whether to verify write processing.

Communications diagnostic
You can set whether to the communications diagnostic of the Reader/Writer.
Once (default) When the Reader/Writer receives a query, it returns a response.
Auto After the Reader/Writer receives a query, the Reader/Writer automatically detects an RF Tag that
enters the communications field and communicates with it.
Communication can be carried out without confirming the existence of an RF tag by a sensor or
the like.
FIFO Trigger When the Reader/Writer receives a query, it communicates with an RF Tags and returns a
response when communicating with an RF Tag was possible.
The Reader/Writer can communicate with the another RF tag when the new RF tag comes in the
communication area, because the Reader/Writer stops the operation of the RF tag once
communicated.The Reader/Writer does not communicate with the RF tag once communicated
until the RF tag goes out of the communication area and enters the communication area again.
FIFO Trigger has the following two setting modes.
•Without ID code check
Process communication with RF tags without ID code check. Compared “With ID code check”,
communication time becomes shorter. However, if the next tag enters the communication area
during communication processing with the RF tag, there is a possibility of reading the data of the
next RF tag.
It is the same communication function as the FIFO Trigger of the reader / writer of firmware version
“3.01 or earlier”
•With ID code check
Communication with RF tag is processed with ID code check. Even if the next tag enters the
communication area during communication processing with the RF tag, it will not read the data of
the next RF tag. RF tags can be installed at narrow pitch. However, compared with “Without ID
code check”, communication time will be longer. Therefore, in order to ensure reliable
communication with the RF tag you want to communicate, we recommend “With ID code check”.
It can be used with a reader / writer with firmware version “3.02 or later”.
High speed (default) 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.
Normal speed 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.
Enabled (default) 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.
Disabled Write processing is not verified.
Disabled (default) The Reader/Writer does not perform communications diagnostic.
Enabled 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.