Logic programs are transferred as part of the project file. You cannot transfer logic programs alone.
For details on how to transfer, refer to the following.
Chapter 33 Transfer
When a project is transferred or saved, error checking is performed automatically.
Program files cannot be transferred to a display unit if an error is detected. To check for errors before transferring, refer to the following.33.9 Checking Errors
When using the transfer tool to download a project with the same name as on the display unit, and project transfer is set to [Auto] and the Retain retentive variables check box is selected, you can transfer the project while retaining the variable values backed up to SRAM. Variable values cannot be retained at download if the system settings are different, the project on the display unit is damaged, the Retain retentive variables check box is not selected, or transfer is set to Forced. Here, if the retain retentive variables check box is not selected or the Forced transfer option is selected, you cannot transfer the file by keeping the current value.
If the [Retain retentive variables] check box is cleared, the variable value is cleared to 0 even if in the [Symbol Variable] common settings [Retentive] is selected. If the [Retain retentive variables] check box is selected, the values of variables that use the [Retentive] setting will be retained.
Connect the display unit to your PC.
On the state toolbar, click the transfer project icon 
to start the transfer tool and click [Transfer Settings].
The [Transfer Settings] dialog box appears. Select the [Retain retentive variables] check box in [Transfer Project] and click [OK (O)].
In the Transfer Tool, click [Send Project] to start transferring to the display unit.