Compactflash Card; Precautions For Using A Compactflash Card - Mitsubishi Electric Melsec Q Series User Manual

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SETTINGS AND PROCEDURE TO OPERATION

4.7 CompactFlash Card

4.7.1 Precautions for using a CompactFlash card

This section explains the precautions for using the CompactFlash card.
(1) Available CompactFlash cards
Use a CompactFlash card listed in Section 2.3. (
Equipment)
Failure to do so may cause a problem such as data corruption in the CompactFlash
card and system stop.
(2) When a CPU module is powered OFF or reset while writing data to a
CompactFlash card, the processing to write data to the CompactFlash card
may not be completed. It may cause a loss of data during DB buffering,
corruption of data in the CompactFlash card that is being accessed, or
occurrence of a file system error. The file is automatically recovered when the
MES interface module is powered ON again, but it will not succeed in some
cases.
The operation, powering OFF or resetting the CPU module after stopping file access,
should be considered. For the important data, create backups in other media
periodically.
(3) When removing or replacing the CompactFlash card
(a) Be sure to stop file access before removing or replacing the CompactFlash card.
(b) Not doing so may cause the data corruption in the CompactFlash card being
(c) If an error occurs in the CompactFlash card, restore the card.
(d) The setting of information linkage function is saved to the CompactFlash card.
(4) CompactFlash card diagnostic time
The MES interface module diagnoses (such as file restoration) the installed
CompactFlash card when:
(5) About a CompactFlash card format
(a) For the CompactFlash card format, use the formatting function of MES Interface
Section 4.7.2 (1) Stopping file access
( Section 4.7.2 Installation/removing the CompactFlash card)
accessed or a file system error.
When necessary, write those settings to the CompactFlash card after replacing
the card.
1) Powering ON the programmable controller from OFF or resetting the
programmable controller CPU
2) Installing the CompactFlash card during power-on
Function Configuration Tool.
Section 7.13.8 Formatting the CompactFlash card
4.7.1 Precautions for using a CompactFlash card
Section 2.3 Connection System
4.7 CompactFlash Card
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