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SECTION 4
RF Tag Service Life Warning Management (EEPROM type)
RFID System
User's Manual
SECTION 4
Functions
Area for RF Tag Service Life Warning Management
Addresses 03E0 to 03E7 hex are used for the RF Tag service life warning management. If RF Tag ser-
vice life warning management is disabled or you are using an ID Controller, Handheld Reader/writer, or
controller made by another company, refer to the following if this area will be read or written to.
Always set the five bytes from 03E0 to 03E4 hex to 00 hex. When RF Tag service life warning manage-
ment is enabled and data other than 00 hex is written, it will be treated as illegal data and a service life
warning will be output.
The number of overwrites is recorded in the three bytes in addresses 03E5 to 03E7 hex. When RF Tag
service life warning management is enabled, the following operation will be performed according to the
number of overwrites that is recorded.
(1) If the number of overwrites is lower than 100,000 after writing:
A service life warning will not be output. The number of overwrites will increase by 1.
(2) If the number of overwrites is 100,000 after writing:
A service life warning will be output. The number of overwrites will be 100,000.
(3) If the number of overwrites is higher than 100,000 after writing:
A service life warning will be output. The number of overwrites will not change.
Before writing After writing
Overwrites Overwrites Service life warning
0 to 99,998 1 to 99,999 Not output
99,999 100,000 Output
100,000 or higher 100,000 or higher Output
03E7 hex
A service life warning will be output if
this part is not 00 hex.
A service life warning will be output if
this part is 100,000 or higher.
03E5 hex
03E6 hex
03E4 hex
03E2 hex
03E3 hex
03E1 hex
03E0 hex
Area for RF Tag service
life warning management
All 00 hex fixed
Number of
overwrites
Address
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