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MELSEC-Q
7 MEMORY CARD AND BATTERY
7.3 Handling the Memory Card
(1) Formatting of memory card
Any SRAM or ATA card must have been formatted to use on the High
Performance model QCPU.
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, refer to 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 High Performance model QCPU (Q mode) 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.