Omron V600 RFID System, Operation Manual

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Memory Map of Data Carrier Section 4-2
Contents of Production Date Area
Note 1. Lower 2 digits of year are recorded (1991 –> “91”).
2. Month is expressed in two digits (June –> “06,” October –> “10”).
Example: June, 1991
Note The battery life of the Data Carrier can be managed not only by reading the
sticker on the battery, but also by the host computer through software by
using a read command.
4-2-3 Write Protect Function
The write protect function protects important data stored in the memory of the
Data Carrier, such as product number and model, from inadvertent write
access. With this function, the data in a specified memory area can be pro-
tected. It is recommended that important data be write-protected as follows:
Setting Write Protect Function
The write protect function is set by 4 bytes of the addresses 0002 through
0005 of the Data Carrier’s memory. Whether or not the write protect function
is effected is specified by the most significant bit of address 0002.
Write protect execution bit (most significant bit of address 0002)
1: Write-protected
0: Not write-protected
Setting area:
Note Use addresses 0002 through 0005 as a write protect area.
Address Bit
7 6 5 4 3 2 1 0
0000 Digit 10 of month Digit 1 of month
0001 Digit 10 of year Digit 1 of year
Address Bit
7 6 5 4 3 2 1 0
0000 0 0 0 0 0 1 1 0
0 6
0001 1 0 0 1 0 0 0 1
9 1
Address Bit
7 6 5 4 3 2 1 0
0002 YES/
NO Higher 2 digits of start address
0003 Lower 2 digits of start address
0004 Higher 2 digits of end address
0005 Lower 2 digits of end address
Address 2 KB type 8 KB type
Start address 0006 to 07FF 0006 to 1FFF
End address 0006 to 07FF 0006 to 1FFF