Sd Memory Card; Sd Memory Card Handling; Sd Memory Card Forced Stop - Mitsubishi Electric MELSEC iQ-R16MTCPU Programming Manual

8.2

SD Memory Card

This section describes functions using a SD memory card.

SD memory card handling

• Formatting is required for all SD memory cards used with the Motion CPU module. Purchased SD memory cards will not
have been formatted, and should therefore be used after inserting them in the Motion CPU module and formatting with the
MT Developer2 [Online]  [Motion CPU memory format]  [SD memory card format]. Do not format SD memory cards at
the personal computer.
• Data contained in SD memory cards may be corrupted if the power supply is turned OFF, the system is reset, or the SD
memory card is removed while the card is being accessed. If the CARD ACCESS LED is ON, always stop access to the SD
memory card with the SD memory card access control switch before turning OFF the power supply, resetting, or removing
the SD memory card. Please note that batch stopping is possible for all SD memory cards being used, and the use stop
status can be checked with "SD memory card forced disable instruction (SM606)" and "SD memory card forced disable
state flag (SM607)".

SD memory card forced stop

Even if the Motion CPU module is performing functions that use a SD memory card, SD memory cards can easily be removed
without turning OFF the Multiple CPU system power supply to stop use of the SD memory card.
SD memory card forced stop method
Forced stop of SD memory cards is performed using the following procedure.
■Operation with SD memory card access control switch
1.
Press the Motion CPU module SD memory card access control switch for 1 second or longer.
2.
The CARD READY LED flickers.
3.
Check that the CARD READY LED is OFF.
4.
Remove the SD memory card.
*1 If there are functions that are currently accessing the SD memory card, the CARD READY LED turns OFF after access with that function
is complete, and so depending on the function, the time taken for the LED status to change from flickering to OFF will differ.
■Operation with special relay
1.
Turn "SD memory card forced disable instruction (SM606)" ON.
2.
Ensure that the CARD READY LED is OFF, or that "SD memory card forced disable state flag (SM607)" is ON.
3.
Remove the SD memory card.
Cancelling the SD memory card use stop status
The SD memory card use stop status can be cancelled using the following procedure.
• Reinsert the SD memory card. (CARD READY LED changes from flickering to ON.)
• Reboot the Multiple CPU system power supply, or reset the system.
8 MOTION CPU MEMORY STRUCTURE
350
8.2 SD Memory Card
*1