63
RFID System
Operation Manual
Sec
tion 4
Wr
it
e Prot
ect
Func
tion
Section 4
Function
■
Setting Write Protection Function
■
Write Protection Setting Examples (2-Kbyte Memory Data Carrier)
(1)Settings to Write-protect Addresses 0015H to 0120H
(Start address < End address)
(2)Settings to Write-protect 1 Byte
(Start address = End address)
Specify the same address for the start and end addresses.
(3)Settings when the End Address Is Greater than the Final Ad-
dress in the Data Carrier
(End address > 07FFH)
The Data Carrier memory area is from addresses 0000H to 07FFH.
Therefore, the addresses up to 07FFH will be write-protected.
(4)Settings when the Start Address Is Greater than the End Ad-
dress
(Start address > End address)
The area between 0006H and the end address and the area
between the start address and 07FFH will be write-protected.
■
Canceling Write Protection
To cancel write protection, set the most significant bit of address 0002H to 0. The write protection will be
cancelled, and the start and end addresses that are set in 0002H to 0005H will be ignored.
A lithium battery is built into SRAM Data Carriers with built-in batteries and may occasionally
cause serious injury due to combustion, explosion, or burning. Dispose of the Product as
industrial waste and never disassemble it, expose it to pressures that would distort it, heat it
to temperatures above 100
C, or incinerate it.
Address
Write-protected area
0000
07FF
0015
0120
to
Write-protected area
1 byte
Write-protected area
0000
07FF
End address
Start address
0000
0006
07FF
Address
Bit
7
6
5
4
3
2
1
0
0002
H
1
0
0
0
0
0
0
0
8
0
(HEX)
0003
H
0
0
0
1
0
1
0
1
1
5
0004
H
0
0
0
0
0
0
0
1
0
1
0005
H
0
0
1
0
0
0
0
0
2
0
WARNIN
G
Summary of Contents for V600 Series
Page 50: ...48 Section 2 Wiring RFID System Operation Manual Section 2 Installation and Wiring MEMO ...
Page 72: ...70 Section 4 Write Command Memory RFID System Operation Manual Section 4 Function ...
Page 138: ...136 Section 5 End Codes RFID System Operation Manual Section 5 Communications MEMO ...