2. use the “PM1/ENTER” encoder for selecting the “Interface Utility” field
3. press the “PM1/ENTER” button, for entering the “Interface Setup” field
4. use the “PM2/ESC” encoder, for selecting the RS485 interface
5. use the “PM3/UTILITY” encoder, for selecting the RS485 interface's ID number
6. after operated the selection, press the “PM2/ESC” button the necessary times for moving back
on the several fields up to the default screen, showing “LPP80A” and the current loaded preset