SECTIO
N
6
ID
Se
ns
or Unit
O
p
era
tion
SECTION 6
Controlling the ID Sensor Unit
121
RFID System
User's Manual
Commands Used to Write Data (Cyclic Data Transfer for Write,
Bit Set, Bit Clear, Mask Bit Write, Calculation Write, Data Fill,
Data Check, Number of Writes Control, and Write with Error
Correction)
1) Use the user program to set the write data in the data storage area.
2) Use the user program to set the processing address, number of processing bytes, data storage word
address, and other parameters for writing RF Tag data in the Special I/O Unit Area.
3) Use the user program to turn ON the Command Execution Bit (CIO n, bit 00) in the Special I/O Unit
Area.
4) When the ID Sensor Unit detects that the Command Execution Bit has turned ON, it turns ON the ID
Busy Flag (CIO n+7, bit 00).
5) The ID Sensor Unit reads the write data from the data storage words to internal memory and then
writes the data to the RF Tag.
6) The ID Sensor Unit writes the data to the RF Tag, places the Results Information (CIO n+8) and
Processing Results Monitor information (word n+9) in the Special I/O Unit Area, turns OFF the ID
Busy Flag (CIO n+7, bit 00), and turns ON the Normal End Flag (CIO n+7, bit 01) for one scan.
The Results Information (CIO n+8) will be held until the Error Reset Bit (CIO n, bit 01) is turned ON or
until the next communications command is received.
• Data is transferred to the data storage words at a rate of 160 bytes per scan.
(2)(3)
(5)
(4)(6)
(6)
(6)
(3)
Amplifier or Antenna
Special I/O
Unit Area
CIO n to
CIO n+6
CIO n+7
Data storage
area (1)
W
rite
data
CS/CJ-series CPU Unit
ID Sensor Unit
CIO n+
8
to CIO n+9
RF T
a
g
Summary of Contents for CJ1W-V680C11
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