Specifications
6 - 3 6 - 3
6. HOW TO COMMUNICATE WITH ID TAGS
6.2.1 Read
The Read instruction reads data from the ID tag starting from the address specified in the
start address specification area (RWwm+1H), in an amount equivalent to the number of
bytes specified in the number of processed points specification area (RWwm+2H).
The read data is stored in the read data storage area 1 and thereafter (RWrm+3H and
thereafter).
*1
*1. For the read data storage area range, refer to Table 6.2.
6.2.2 Write
The Write instruction writes data to the ID tag starting from the address specified in the
start address specification area (RWwm+1H), in an amount equivalent to the number
of bytes specified in the number of processed points specification area (RWwm+2H).
The data to be written is stored in the write data specification area 1 and thereafter
(RWwm+3H and thereafter).
*1
*1. For the write data specification area range, refer to Table 6.2.
6.2.3 Fill data
The Fill Data instruction writes the same data to the ID tag starting from the address
specified in the start address specification area (RWwm+1H), in an amount equivalent
to the number of byte sets specified in the number of processed points specification
area (RWwm+2H).
The data for executing Fill Data is stored in write data specification area 1 (RWwm+3H).
6.2.4 Read UID
The Read UID instruction reads the UID (unit identification number; 8bytes) of the ID tag,
and stores the value in the read data storage areas 1 to 4 (RWrm+3H to RWrm+6H).
6.2.5 Measure noise
The Measure Noise instruction measures the noise environment surrounding the
antenna, and stores the average value, maximum value, and minimum value of the
measured data in the read data storage areas 1 to 3 (RWrm+3H to RWrm+5H).
Measured Data
RWrm+3H Average value "C0H"+"00H" to "99H" [BCD]
RWrm+4H Maximum value "C0H"+"00H" to "99H" [BCD]
RWrm+5H Minimum value "C0H"+"00H" to "99H" [BCD]
6.2.6 Read Initial Data Settings
The Read Initial Data Settings instruction reads the communication specification,
communication setting, processing specification, and auto system command wait type
setting set in the RFID interface module, and stores the values in the read data storage
areas 1 to 4 (RWrm+3H to RWrm+6H).
RWrm+3H Communication specification
RWrm+4H Communication setting
RWrm+5H Processing specification
RWrm+6H Auto system command wait time setting