Chapter 3 PLC System Configuration & Settings 3.1.4.3 System Settings – Device Range Setting The parameters on Device Range Setting table are shown in the following window. Set the start address and end address of this kind of devices by clicking button. Click Default button to restore to the default value. Click Clear button to clear the box content to 0. Finally, click OK to save the settings or Cancel to give up the setting and leave the dialogue box. 3-89