Mitsubishi Electric MELSEC iQ-R16MTCPU Programming Manual page 353

SD memory card forced stop precautions
• If use of the SD memory card is forcibly stopped with the SD memory card access control switch and also with the "SD
memory card forced disable instruction (SM606)", the operation executed first will be valid, and the subsequent operation
will be invalid. For example, if the "SD memory card forced disable instruction (SM606)" is turned from ON to OFF without
removing the card after forced stop with the SD memory card access control switch, the use stop status can be cancelled.
If the SD memory card is removed after forced stop with the SD memory card access control switch, and then the "SD
memory card forced disable instruction (SM606)" is turned ON, the "SD memory card forced disable instruction request
(SM606)" operation will be ignored.
• If the SD memory card is forcibly stopped while writing a file to the SD memory card from an external device, file writing
may fail. Write the file again after cancelling the SD memory card use stop status.
8 MOTION CPU MEMORY STRUCTURE
8.2 SD Memory Card
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