5. How to Save Data
32
5.5. Caution
Cautions in data transfer and ash writing
Never shut OFF the main power while the data is transmitting and writing into ash.
Data may be lost and controller may be rendered inoperable.
Cautions concerning the increase in the number of positions
The number of position data items has been raised to 20,000 in the X-SEL-P/Q and
PX/QX controllers for the increased memory capacity (with gateway function).
Take care with the following items.
* When the battery backup memory is used (Other Parameter No. 20 is set to “2”),
the position data save domain is in the battery backup memory for the Position
No. 1 to 10000, and in the main CPU flash ROM for the position No. 10001 to
20000. Accordingly, when the data is not written in the ash ROM and the power
is turned OFF or the software reset is performed, the data items for the position
No. 10001 to 20000 are deleted. After that, the next time the machine is turned
ON, the data written in the ash ROM from before is read. When the data is to be
held, write the data into the ash ROM. Also, when the battery backup memory is
not used (Other Parameter No. 20 is set to “2”), the data save domain for all data
items for the Position No. 1 to 20000 is in the main CPU ash ROM. In this case,
when the data is to be held, write the data also in the ash ROM.
To Next Page
Loading...
Need help?
General
