Handling The Memory Card - Mitsubishi MELSEC- Q Q12PHCPU User Manual

7 MEMORY CARD AND BATTERY

7.3 Handling the Memory Card

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(1) Formatting of memory card
Any SRAM or ATA card used on the Process CPU must have been formatted
Since the SRAM or ATA card purchased is not yet formatted, format it using GX
Developer before use.
(The Flash card need not be formatted.)
For the formatting procedure, see the Operating Manual of the GX Developer.
(2) Installation of SRAM card battery
A power interrupt hold-on battery is furnished with the SRAM card you
purchased.
Before using the SRAM card, install the battery.
POINTS
Even if the battery is installed on the CPU module, if a battery is not installed on the
SRAM card, the memory of the SRAM card will not be backed up. Ensure to install
the battery on the SRAM card.
Also, if the battery is installed on the SRAM card but the CPU module has no
battery, the program memory, standard RAM and latch devices of the CPU module
are not backed up. Similarly ensure to install the battery on the CPU module.
(3) Kind of file which can be stored on memory card
Please refer to the Process CPU User's Manual (Function Explanation, Program
Fundamentals) of section 6.1 for the kind of the file which can be stored on each
memory card.
MELSEC-Q
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