Keep pressed on an empty part of the screen, after 3 seconds the operator panel shows the Command Menu.Power On the panel while keeping pressed the keys and keep the pressure until the panel enters Configuration Mode.Use the Arrow keys to navigate in the menu, reach the CONFIG or CFG voice, then confirm with Enter key to switch to Configuration Mode.Keep pressed Enter key, after 3 seconds the operator panel shows the Command Menu.
The string is similar to the one shown in the picture below. The Configuration Mode status can be recognized as in the left-upper corner of the screen the panel a string reporting the status is displayed.
This document explains how to switch the operator panel to Configuration Mode status. The communication between a PC running Designer or UniDataExchanger software and an operator panel requires the panel itself to be switched in Configuration Mode status.