When a screen number that does not exist is set, a screen change will not function.
When you set a switch with the [Group with Auto OFF] setting, the bit will automatically turn OFF when the screen changes.
LS8 viewed by direct access method and address 15 viewed by memory link method are internally the same. However, if [Reflect in Device/PLC] is not selected in the system settings, immediately after writing with memory link mode the LS8 value will change as a result of direct access communication, making screen changes using memory link mode impossible.
For more information about the System Data Area, please refer to the following.
A.1.4.2 System Data Area (Direct Access Method) or A.1.5.2 System Data Area (Memory Link)