![background image](http://html1.mh-extra.com/html/omron/cj-12-2004/cj-12-2004_manual_740789084.webp)
65
Data Carrier Life Check
Section 5-6
Results Information turns ON. If the value in the control area already exceeds
100,000 writes, the value will not be changed.
Application Method
The life of the Data Carrier can be managed by updating the number of writes
value when data is written to the address most frequently written. (The life of
the Data Carrier is 100,000 writes for any one address, so the number of
writes must be counted for the address that is written most frequently.) It is
also possible to confirm the number of writes without updating the number of
writes value.
Note
For any one Data Carrier, use only an Add specification or a Subtract specifi-
cation for the Number of Writes Control command. If both specifications are
used for the same Data Carrier, the number of writes control will not be possi-
ble.
Application Example
The following example uses 3 bytes starting at address 0010 (hex) as the
number of writes control area.
1,2,3...
1.
A Write command is executed to clear the control area.
Area start
address
Upper digit
Middle digit
Lower digit
3 bytes
Data written
No. of writes updated/
life checked
Life checked
Write stage
Life confirmation
stage
Address
(hex)
7
0
000F
0010
0
0
0011
0
0
0012
0
0
0013
Bit
Bit
Summary of Contents for CJ - 12-2004
Page 2: ...SYSMAC CS CJ Series ID Sensor Units Operation Manual Revised December 2004...
Page 3: ...iv...
Page 11: ...xii...
Page 55: ...36 Connections and Wiring Section 3 4...
Page 69: ...50 I O Data Allocations Section 4 3...
Page 91: ...72 Data Check Section 5 7...
Page 141: ...122 Sample Programming Appendix B...
Page 147: ...128 Revision History...