Use the ladder software (Logic Designer) for communication settings. Refer to your External Device manual for details.
Start up the ladder software.
To start the MODBUS communication (RTU mode) slave function, create the control logic. For the example of control logic, refer to "Control Logic Example".
Select [Rebuild Project] from the [Build] menu.
Double-click [Target Setting] in the project tree Window to display the [Target] dialog box.
Enter "192.168.0.1" in [Host Name/IP Address].
Click [OK].
Download the communication settings to the External Device.
Reboot the External Device.
To connect the Display to the External Device, the control logic is required.
The control logic example is shown below.