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9 Backup Functions
NJ-series CPU Unit Software User’s Manual (W501)
9-4 Automatic Transfers from SD Memory Cards
9
• Perform the automatic transfer again.
• Clear all of memory and then download the project from the Sysmac Studio.
• All data items that are not specified for the automatic transfer will retain their present values.
• If the present values of variables that are set to be retained (with the Retain attribute) are not set to
be transferred, the previous present values of those variables will be retained. However, the values of
any variables that do not meet the retain conditions are initialized. These are the retain conditions for
the variable:
• The variable name, data type name, and data type size must be the same before and after trans-
ferring the data.
• The SD Memory Card will remain mounted after completion of the automatic transfer operation.
• The write protection for the CPU Unit that is set in the Write Protection at Startup setting is used after
completion of the automatic transfer operation.
Transferring Data with the CPU Unit Front-panel DIP Switch
*1 If an SD Memory Card is not inserted, the SD PWR indicator will not light.
Procedure
Processing stage Procedure
Start command Turn ON the power supply to the Controller with the DIP switch set as follows: 1: OFF, 2:
ON, 3: OFF, and 4: OFF.
Executing The transfer is in progress.
The SD PWR indicator will flash, lighting for 3 seconds and going out for 0.5 seconds. The
RUN indicator will flash, lighting for 0.5 seconds and going out for 0.5 seconds. The SD
BUSY indicator will flash irregularly.
Execution results Normal End:
The SD PWR indicator will light.
The operating mode that is set in the Startup Mode setting in the Controller Setup is used
after completion of the transfer.
Error End:
The RUN indicator goes out, the ERR indicator lights, and a major fault level Controller
error occurs.
The SD PWR indicator will light.
*1
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