Section 6 RFID System Maintenance
Section 6
Functions
121
RFID System
User's Manual
(Modbus TCP)
RF Analyzer
The RF Analyzer displays detailed information from communication diagnostic on a Web browser. You
can easily check to see how stable communications are and troubleshoot problems.
You can browse a list of diagnostic information and periodically confirm the leeway quantitatively on
graphs. You can download a log file that contains the diagnostic information stored in the Reader/
Writer to a computer for your usage.
Diagnostic Information Table
You can display a table of the diagnostic information from communications between the Reader/Writer
and RF Tags. (The table contains up to 2,048 records.) You can check the following items in the table.
Whenever a communication was unstable, a button to display details is displayed in the list. If you click
this button, you can troubleshoot the cause with guidance displayed on the Web browser to help
stabilize communications.
Diagnostic Information Graphs
You can display the diagnostic information quantitatively on a graph. You can check the following
information on the graph.
Refer to RF Analyzer in Section 8 Web Browser Interface for the operating procedures of the RF Analyzer.
p.230
Time The Reader/Writer operating time when it communicated with the RF Tag
Query type The name of the query in the communication with the RF Tag
Result The diagnostic result (stable, unstable, or error)
Diagnostic information The cause when a communication was unstable
Signal level The communications signal level between the Reader/Writer and RF Tag is displayed in 10
levels on a vertical bar graph.
The higher the value, the more stable the communications. A value of 10 means that
communications are stable, and the bar is displayed in blue. A value of 1 to 9 means that
communications are unstable, and the bar is displayed in yellow. A value of 0 indicates a
communications error. Adjust the installation conditions to get the values as close to 10 as
possible.
Noise level The ambient noise level around the Reader/Writer that was detected in communications with
RF Tags is displayed in 10 levels on a broken-line graph. The higher the value, the less stable
the communications.
Reader/Writer
Switching Hub
Personal computer
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