Instruction Manual

7-2 Backup and Restoration
To remove the memory cassette:
1. Turn OFF the power supply to the PLC.
2. Grasp the end of the memory cassette between the thumbnail and index finger and slide it
upward to remove it (Figure 7-2).
Figure 7-2 Removing the Memory Cassette
7.1.2 Installing and Removing the LCD Option Board
To install the LCD Option Board:
CAUTION! Always turn OFF the power supply to the CPU Unit and wait until all operation
indicators go out before installing or removing the LCD Option Board.
1. Press the up/down lock levers on both sides of the Option Board Slot Cover 1 at the same
time to unlock the cover and then pull the cover out.
2. Check the alignment to make the corner cut of the LCD Option Board fit in the Option Board
Slot 1, and firmly press the LCD Option Board in until it snaps into place (Figure 7-3).
Figure 7-3 LCD Option Board