Omron V680-CA5D01-V2 User Manual

86
SECTION 4
Write Protection
RFID System
User’s Manual
SECTION 4
Functions
3. Set the write protection setting of the ID Tag.
 Setting Write Protection for V600 EEPROM Models
(Setting the V600 Write Protection Method and Using the V680-D1KP@@)
When the end address for write protection is written into ID Tag address 0000H, the area from address
0001H to the end address is write-protected.
The most significant bit of ID Tag address 0000H is used to enable or disable write protection.
For this reason, addresses from 0080H to 03E7H cannot be used as end addresses.
When the end address is set to 00, the area from address 0001H to 03E7 is write-protected.
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 EEPROM ID Tag Write Protection Settings
• Most Significant Bit of Address 0000
H
1: Write-protected (Enabled)
0: Not write-protected (Disabled)
• Area in Which the End Address Can Be Set
End address: 00H, 01H to 7FH
To use write protection, one operation to write to the write protection setting area (address 0000H) and a separate oper-
ation to write to other addresses (address 0001
H hex or higher). A write protection error will occur if the most significant
bit of address 0000
H is 1 and a write operation is performed that includes both addresses in the ID tag write protection
settings area and other addresses in the ID Tag.
Example of Write Protection
Write Protecting Addresses 0001
H to 0012H
Setting 00 as the End Address
All addresses except address 0000
H will be write-protected.
The write protection setting area of the ID Tag cannot be write-protected.
Address Bit 7 6 5 4 3 2 1 0
0000
H
Enable/
disable
End address
Address
0000
H
0012
H
03E7
H
Write-
protected
area
Address Bit 7 6 5 4 3 2 1 0
0000
H
10010010
92
Address
0000
H
03E7
H
Write-
protected
area
Address Bit 7 6 5 4 3 2 1 0
0000
H
10000000
80

Omron V680-CA5D01-V2 Specifications

General

Brand	Omron
Model	V680-CA5D01-V2
Category	Controller
Language	English