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SECTION 5
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RFID System
User's Manual
SECTION 5
ID Sensor Unit Functions
Write/Read Speed Level Measurement
A speed level measurement allows for easy checking of the RF Tag's speed of movement and number
of usable bytes. This operation measures the number of times that communications can be performed
consecutively based on the speed that RF Tags pass through the Antenna interrogation zone and
outputs the measurement results to the Processing Results Monitor (CIO n+9) in the Special I/O Unit
Area. The measurement results can also be checked on the Amplifier's operation indicators.
The speed level measurement operation simulates writing data. Data is not actually written to the RF Tag.
The speed level measurement will be performed with the contents that was set in advance in DM m+50 and DM m+51.
1.
Set the method to use to switch between Run Mode and Test Mode.
To start Test Mode using the switch on the front of the Unit, set DM m+80 to 0000.
To start Test Mode using bit 15 of (CIO n+0), set DM m+80 to 0001.
After setting DM Area data with the Support Software, reset the power supply to the PLC or turn ON the Special I/O Unit
Restart Bit. The DM Area settings will be transferred to the ID Sensor Unit when the power supply turns ON or when the
Special I/O Unit Restart Bit is turned ON.
2.
Set the operation to perform in Test Mode.
Set DM m+50 to B00X (read) or B10X (write), and set the number of test bytes in DM m+51.
Note: Set X to 1 to specify Antenna 1, and set X to 2 to specify Antenna 2.
DM Area addresses are given in reference to “m,” where m = 100
×
Unit number.
3.
Turn ON the test switch.
Measuring the speed level is started using the method set in the DM Area.
To start Test Mode using the switch on the front of the Unit, set DM m+80 to 0000.
To start Test Mode using bit 15 of (CIO n+0), set DM m+80 to 0001.
4.
Speed level measurement will begin.
The speed level will be measured, and the communications results will be output to the Processing Results Monitor (CIO n+9) in
the Special I/O Unit Area. The measurement results can also be checked on the Amplifier's operation indicators.
Summary of Contents for CJ1W-V680C11
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