Omron V600 Series User Manual

61
RFID System
Operation Manual
Section 4 Write Protect Function
Section 4
Function
Write Protect Function
The write protect function prevents important data stored in the Data Carrier, such as the product type and
model, from being overwritten by other data and lost.
Use the following methods to set write protection after writing important data.
Data Carriers with Built-in Battery (V600-D@KR@@ and V600-D@KF@@)
■ Setting Write Protection Function
The write protect function is set in the four bytes of addresses 0002H through 0005H of the Data Carrier's
memory.
The status of the most significant bit of address 0002H determines whether or not the write protect func-
tion is enabled.
• Write-protect Bit (most significant bit of address 0002H)
1: Data is write-protected
0: Data is not write-protected
• Write Protect Setting Area
Start address: 0006H to 1FFFH
End address: 0006H to 1FFFH
When using the write protect function, write the data in two operations, i.e., one for the write-protected area (addresses
0002H through 0005H) of the ID Tag, and one for outside the write-protected area (address 0006H or higher). When the
most significant bit of address 0002H is 1 and data is written that exceeds the write-protected area (addresses 0002H
through 0005H) of the ID Tag, a write protect error will occur.
■ Settings to Write-protect Addresses 0006H through 07FFH
Address Bit76543210
0002
H Ye s / N o Upper two digits of start address
0003
H Lower two digits of start address
0004
H Upper two digits of end address
0005
H Lower two digits of end address
Address Bit Upper digit Lower digit
0002
H
1 0000000
80
0003
H
00000110
06
0004
H
00000111
07
0005
H
11111111
FF

Omron V600 Series Specifications

General

Operating Frequency	13.56 MHz
Supported Standards	ISO 15693, ISO 18000-3
Read Range	Up to 70 mm (depending on tag and environment)
Power Supply	24 VDC ±10%
Operating Temperature	-10 to 55°C (with no icing or condensation)
Humidity	35% to 85% (non-condensing)
Communication Interface	RS-232C