Using the simulation feature, you can verify screen operations before transferring the project to the display unit.
Without connecting the display unit or device/PLC, you can check operations by writing values to defined addresses.
33.2.1 Procedure - Checking Display Unit operations on the Computer
Special functions set up on defined device/PLC addresses (such as automatic increment) will not run in simulation.
Change the value in the specific address to check its operation.
Even though the project is not complete, you can still run simulation to check it.
You can check how the project and device/PLC dependent portions work together.
For more details, please refer to the following.
33.5 Checking Display Unit operation and PLC interaction on the Computer