User`s manual

Memory cards and batteries Memory card
5 – 4
5.1.2 Handling the memory card
Formatting of memory card
Any SRAM or ATA card must have been formatted to use in the CPU module. Since the SRAM
or ATA card purchased is not yet formatted, format it using GX (IEC) Developer before use.
Formatting is not necessary for Flash cards.
SRAM card battery
A battery used to backup for power failure is supplied with the SRAM cards Q2MEM-1MBS,
Q2MEM-2MBS, Q3MEM-4MBS and Q3MEM-8MBS.
Before using the SRAM card, install the battery.
Types of files which can be stored on memory card
For the types of the files that can be stored on each memory card, refer to the manuals of the
CPU modules used.
Errors when the installation of the memory card is wrong
Poor insertion of the memory card may result in "ICM.OPE.ERROR".
If the CPU module operation for an error is set to "Stop" in the Parameters, the CPU module
stops its operation upon the occurrence of "ICM.OPE.ERROR".
Increase of scanning time when the memory card is installed
When the memory card is installed, the scanning time is increased by several 10 ms max. 1 scan
is only added, when the CPU module executes mount processing.
NOTE Do not format an ATA card other than by GX Developer or GX IEC Developer.
(If formatted using format function of Microsoft
®
Windows
®
, the ATA card may not be usable
in a CPU module.)
NOTES
The battery of the CPU does not buffer the SRAM memory card, when the power supply is
shut off. Use a separate battery for the memory card.
The battery of the memory card does not buffer the data of the program memory and inter-
nal RAM of the CPU, when the power supply is shut off. Install a separate battery, to buffer
these memory areas.