Battery Replacement
• Be sure to mount a Battery within two years of the production date shown on the Battery label.
• T
urn ON the power after replacing the Battery for a CPU Unit that has been unused for a long time.
Leaving the CPU Unit unused again without turning ON the power even once after the Battery is
replaced may result in a shorter Battery life.
• If you use the Battery, use the CJ1W-BAT01 Battery Set which is sold separately.
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.
a) _Card1Deteriorated (SD Memory Card Life Warning Flag) system-defined variable
b) 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.
Online Editing
• When performing online editing, 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.
a) Structure members whose data size is 16 bits or more, except for system-defined variables for
motion control
b) 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).
Precautions for Correct Use
34
NX-series NX1P2 CPU Unit Hardware User’s Manual (W578)
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