b) Do not remove the SD Memory Card while the SD BUSY indicator is lit or the SD PWR indicator
is lit (i.e., while SD Memory Card power is supplied).
Press the SD Memory Card power supply switch and confirm that the SD BUSY indicator or SD
PWR indicator is not lit before you remove the SD Memory Card.
• Never insert the SD Memory Card facing the wrong way
.
If the SD Memory Card is inserted forcibly, it may become unusable.
• To format the SD Memory Card (e.g., to delete all of the data), insert the SD Memory Card in the
CPU Unit and perform the operation from the Sysmac Studio.
• The SD Memory Card uses flash memory, and so its service life is limited. When the end of the SD
Memory Card’s service life approaches, the ability to write data is lost, and data is sometimes not
retained after writing. The service life depends on the size of the data that is written and on the am-
bient temperature. For the unlikely event that data is lost, it is recommended to periodically back up
data.
• The service life may be extremely short if a non-OMRON SD Memory Card is used. Also, operation
may be affected due to deterioration in writing performance.
• 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
Version Information
Combination of the CPU Unit version and SD Memory Card determines whether the SD memo-
ry card life expiration detection function can be used or not. Refer to Specification of Supported
SD Memory Cards, Folders, and Files in the NJ/NX-series CPU Unit Software User’
s Manual
(Cat. No. W501) for details.
Installing the SD Memory Card
1 Place your finger on the memory card cover located in the left side of the CPU Unit and open it
to the right.
2 Insert the SD Memory Card with the label facing to the right.
5 Installation and Wiring
5-25
NX-series NX502 CPU Unit Hardware User's Manual (W629)
5-3 Mounting and Removing Units
5
5-3-9 Installing and Removing the SD Memory Card
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