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MELSEC-Q
7 MEMORY CARD AND BATTERY
7.5 Memory Card Loading/Unloading Procedures
(1) To install the memory card
Install the memory card into the CPU module, while paying attention to the
orientation of the memory card. Insert the memory card securely into the
connector until the height of the memory card reaches that of the memory card
EJECT button.
"Precautions"
on this side
Insert it in this
direction.
CPU
module
Memory card EJECT button
Memory card
(2) To remove the memory card
To remove the memory card from the CPU module, press the memory card
EJECT button to push out the card.
Remove the card
in this direction.
CPU
module
Push
Memory card EJECT button
Memory card
(3) To extract the memory card while the power is turned on
Before removing the memory card, make sure that the special relays "SM604",
"SM605" are OFF.
• When "SM604" is ON, the memory card cannot be removed since the CPU
module is using the memory card.
• When "SM605" is ON, turn it OFF.
When "SM604" and "SM605" are OFF, remove the memory card in the
following procedure.
1) Turn on the special relay "SM609" using the sequence program or by the
device test of GX Developer etc.
2) By monitoring GX Developer etc., check that the special relays "SM600" is
turned off.
3) Extract the memory card.
SM600 (Memory card usable flag) : The system is turned on when memory
card is ready for use by user.
SM604 (memory card use flag) : The system is turned on when the CPU
module uses a memory card.
SM605 (memory card detach inhibit flag) :
This is turned on by the user to disable
the memory card from being detached.
(4) To install the memory card while the power is turned on
1) Install the memory card.\
2) By monitoring GX Developer etc., check that the special relays "SM600" is
turned on.
POINTS
Install and remove the memory card while the power is turned on, paying
attention to the following.
(1) If the procedures specified above are not followed, the data stored in the
memory card may be destroyed.
When the CPU module operation at the time of occurrence of a parameter error
is set to STOP, the CPU module operation is stopped by the occurrence of
"ICM.OPE.ERROR."
(2) When the memory card is installed, its mount processing is performed again.
As a result, the scanning time is increased by several 10 ms max.