### Setting of External Device

Click the [Serial Port] tab from the [PLC Settings] of the ladder software for the communication settings of the Serial port (Serial Port 2 on CPU) and set as below.

Setup Items | Setup Description
--- | ---
Communications Settings | Custom
Baud | 19200
Format | 8,1,E
Mode | Modbus RTU Slave
Modbus Slave Address | 1

NOTE

- Do not set the duplicate node address in the same network address group.
- Use an integer from 1 to 247 to enter the unit ID of the External Device.