Omron CJ Series Operation Manual page 34

SD Memory Cards
• Insert the SD Memory Card all the way.
• Do not turn OFF the power supply to the Controller during SD Memory Card access. The files may be
corrupted.
If there is a corrupted file in the SD Memory Card, the file is automatically deleted by the restoration
function when the power supply is turned ON.
30 CJ-series PROFIBUS Master Unit Operation Manual for NJ-series CPU Unit (W509)