Instruction Manual

7-6 Backup and Restoration
To transfer programs from Memory Cassette to PLC without an LCD Option Board:
 NOTE Use the following procedure to enable automatic transfer at startup.
1. Prepare a memory cassette with the required data.
2. Make sure the CPU power supply is OFF and remove the cover from the memory cassette
slot and insert the memory cassette.
3. Open the cover on the CPU’s peripheral section and set the Dip Switch Pin SW2 to ON.
Figure 7-6 SW2 Dip Switch
4. Turn ON the CPU power supply.
 The automatic transfer from the memory cassette will begin and the progress will be
displayed on the 7-segment LED indicator.
5. After the automatic transfer is complete, turn OFF the CPU power supply.
6. Remove the memory cassette and replace the memory cassette slot cover.
7. Set the Dip Switch Pin SW2 to OFF and close the cover.
8. Turn ON the CPU power supply.
 NOTE After the automatic transfer from the memory cassette at startup is complete, the transfer
will not start again automatically (regardless of the Startup Mode setting in PLC Setup).
As described in the procedure above, to start the operation, turn the CPU power supply
OFF, set Dip Switch SW2 to OFF, and then turn the power supply back ON.