Omron V680-CA5D01-V2 User Manual page 90

Setting Write Protection for V600 S-RAM Model
(Setting the V600 Write Protection Method and Using the V680-D2K/8K/32K@@)
When the start address and end address for write protection are written into ID Tag addresses 0002
to 0005 , the area from the start address to the end address is write-protected.
H
The most significant bit of address 0002
In V600 S-RAM write protection, addresses 0000
whether write protection is enabled or disabled.
The V600 EEPROM write protection method and the V600 S-RAM write protection method can be used only on ID Con-
trollers that are version 2.1 or newer. For details on Checking the Version, refer to page 17.
Memory Map for V600 S-RAM ID Tag Write Protection Settings
Address Bit 7
Enable/
0002
H
disable
0003
H
0004
H
0005
H
• Most Significant Bit of Address 0002
1: Write-protected (Enabled)
0: Not write-protected (Disabled)
• Area in ID Tag Memory That Can Be Write Protected
Start address: 0006
H
End address: 0006
H
To use write protection, one operation to write to the write protection setting area (addresses 0002
separate operation to write to other addresses (address 0006
significant bit of address 0002
protection settings area and other addresses in the ID Tag.
is used to enable or disable write protection.
H
6 5 4 3
Upper two digits of start address (00 to 7F)
Lower two digits of start address (00 to FF)
Upper two digits of end address (00 to FF)
Lower two digits of end address (00 to FF)
H
to 7FFF
H
to FFFF
H
is 1 and a write operation is performed that includes both addresses in the ID tag write
H
and 0001 are always write-protected regardless of
H H
2 1 0
or higher). A write protection error will occur if the most
H
SECTION 4
Functions
H
to 0005 ) and a
H H
RFID System
87
User's Manual