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SECTION 5
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RFID System
User's Manual
SECTION 5
ID Sensor Unit Functions
Communications Success Rate Measurement
The communications success rate measurement is used to check the communications success rate.
The ID Sensor Unit communicates 100 times with a RF Tag and outputs the measurement results to
the Processing Results Monitor (CIO n+9) in the Special I/O Unit Area.
The communications success rate is measured using read operations.
The communications success rate measurement will be performed with the contents that was set in advance in DM
m+50.
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 C10X 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 communications success rate 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.
Communications success rate measurement will begin.
The communications success rate will be measured and the measurement results will be output to the Processing Results
Monitor (CIO n+9) in the Special I/O Unit Area.
Summary of Contents for CJ1W-V680C11
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