Omron CJ1W-ID Series User Manual page 35

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.
• If you use an OMRON SD Memory Card, the end of the life of the SD Memory Card can be detected
in the following ways.
• _Card1Deteriorated (SD Memory Card Life Warning Flag) system-defined variable
• SD Memory Card Life Exceeded event in the event log
When the end of the life is detected in any of the above ways, replace the SD Memory Card.
Version Information
Combination of the CPU Unit version and SD Memory Card determines whether the SD mem-
ory card life expiration detection function can be used or not. Refer to Specifications of Sup-
ported SD Memory Cards, Folders, and Files in the NJ/NX-series CPU Unit Software User's
Manual (Cat. No. W501) for details.
Online Editing
When performing online editing in combination of a CPU Unit with a unit version of 1.04 or later and
Sysmac Studio version 1.05 or higher, the CPU Unit saves a program updated by the online editing to
built-in non-volatile memory. Sysmac Studio shows a message that it is in a backup operation. Do not
turn OFF the power supply to the Controller while this message is displayed. If the power supply to the
Controller is turned OFF, a Controller error will occur when the power supply is turned ON next time.
Debugging
• If you use data tracing to sample following variables, correct data may not be sampled.
• Structure members whose data size is 16 bits or more, except for system-defined variables for
motion control
• Array elements whose data size is 16 bits or more
For information on data tracing, refer to the NJ/NX-series CPU Unit Software User's Manual (Cat. No.
W501).
NJ-series CPU Unit Hardware User's Manual (W500)
Precautions for Correct Use
33