<Cause>

When displaying a normal overlap or call-overlap part according to the status of the corresponding bit in read area "n + 1", this is recognized only at the leading edge (OFF → ON).
If the screen is moved back while the bit remains ON, the overlap part will not be displayed.

<Solution>

The following four methods are available.

1. To display the overlap part whenever the bit is ON, select [System Setting] → [Unit Setting] → [General Settings] and check [Display Overlap during bit ON].
   

    

2. Stop using read area "n + 1", and check [Control Device] in [Status of Use] of the overlap setting dialog.
   Command memory Bit 0
   　OFF: No display
   　ON: Display
   　Example: Control Device for normal overlap
   　
   
     * When you use V-SFT Ver.5, check [Command Memory] in the [Detail] tab
        of the overlap setting dialog.
      

    

3. Use a multi-overlap part and call it with an external command (using the control device memory).

    

4. Use a global overlap part.