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4.7 CompactFlash Card
4.7.1 Precautions for using a CompactFlash card
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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. ( Section 2.3 Connection System
Equipment)
Failure to do so may cause a problem such as data corruption in the CompactFlash
card and system stop.
(2) When powering off the system or resetting the programmable controller CPU
When the system is powered off or the programmable controller CPU is reset during
writing to the CompactFlash card, the write processing may not be completed.
In this case, the MES interface module can normally be powered off without file
access stop because it automatically restores the files when powered on again.
In rare cases, however, the module cannot completely restore files.
If a problem arises by this, perform file access stop processing before powering off the
system or resetting the programmable controller CPU.
Also, regularly backing up important data (e.g. save on other media) is recommended.
Section 4.7.2 (1) Stopping file access
(3) When removing or replacing the CompactFlash card
(a) Be sure to stop file access before removing or replacing the CompactFlash card.
( Section 4.7.2 Installation/removing the CompactFlash card)
(b) Not doing so may cause the data corruption in the CompactFlash card being
accessed or a file system error.
(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.
When necessary, write those settings to the CompactFlash card after replacing
the card.
(4) CompactFlash card diagnostic time
The MES interface module diagnoses (such as file restoration) the installed
CompactFlash card when:
1) Powering ON the programmable controller from OFF or resetting the
programmable controller CPU
2) Installing the CompactFlash card during power-on
(5) About a CompactFlash card format
(a) For the CompactFlash card format, use the formatting function of MES Interface
Function Configuration Tool.
Section 7.13.8 Formatting the CompactFlash card