Specifications

Writing programs Using programmable controllers
MELSEC-L Series Quick start guide 2 - 23
2.7.4 Formatting the CPU module
Before writing the program, format the CPU module to set it to the initial status.
 Select Online  PLC Memory Operation  Format PLC Memory.
The "Format PLC Memory" screen is displayed.
 Select Program Memory/Device Memory from Target Memory.
 Click the Execute button.
 Click the YES button.
 Click the OK button.
The CPU module formatting is completed.
Click the Close button to close the "Format PLC Memory" screen.
Fig. 2-41:
Select the "Format PLC Memory" menu
000030a
Fig. 2-42:
"Format PLC Memory" screen
000031a
NOTE If data such as programs and parameters are already stored in the CPU module, they are deleted.
Thus the necessary data should be read from the CPU module and saved as a project before exe-
cuting the Format PLC "Format PLC Memory" function.
Fig. 2-43:
Confirm memory formatting
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Fig. 2-44:
Formatting completion message
000033a