Mitsubishi Electric ER-1V680D1 User Manual page 66

000FH
0010H 0
0011H 8
0012H
A
0013H
■Subtraction (write life: arbitrary number of writes)
When 0001H is set to Processing specification area (Un\G2, Un\G4002), the value after subtracting the number of writes is
written in the management area of the number of writes.
When the value is smaller than 0, the number of writes is exceeded, and the status flag (bit 4) of Error details storage area
(Un\G41, Un\G4041) and Error detection (X5, XD) turn on.
To manage the number of writes with subtraction, the write life needs to be entered in advance in the management area by
using the Write command. The write life of EEPROM-type RF tag is 100,000 (0186A0H). Set a number of 100,000 or less.
If the data of the management area of the number of writes is 0, the value of the management area is not updated.
Ex.
When the number of writes is subtracted from the number of writes management area of the data of three bytes starting from
the address 0010H
b7
000FH
0010H 0
8
0011H
0012H
A
0013H
000FH
0010H 0
0011H 8
0012H
9
0013H
000FH
0010H 0
0011H 0
0012H
0
0013H
6 FUNCTIONS
64
6.2 Command
4.
This is the state that the number of writes is 100,000.
In this case, if the Manage number of writes command is executed with addition
specified and with five as the number of writes (Un\G5, Un\G4005 = 5), the status
1
flag (bit 4) of Error details storage area (Un\G41, Un\G4041) and Error detection (X5,
6
XD) turn on. The data of the management area of the number of writes is not
0
updated.
1.
Write the write life (100,000) to the management area of the number of writes
b0
by using the Write command in advance.
1
6
0
2.
With five as the number of writes (Un\G5, Un\G4005 = 5), the Manage number
of writes command is executed with subtraction specified.
1
6
B
3.
This is the state that the number of writes is 100,000. When the Manage
number of writes command is executed with subtraction specified and with five
as the number of writes (Un\G5, Un\G4005 = 5), the status flag (bit 4) of Error
0
details storage area (Un\G41, Un\G4041) and Error detection (X5, XD) turn on.
0
The data of the management area of the number of writes is not updated.
0