The ETT 353 from Sigmatek works as a miniature human-machine interface. The operating device with a 3.5-inch resistive touch display is particularly suitable for process monitoring of machines and systems in conjunction with a CPU. Its supply voltage is 24 V(DC). Data is exchanged via CAN bus. The application is shown on the LC graphic display and parameters and process data can be easily entered and changed, according to the manufacturer. The control unit, which is housed in a plastic casing and measures 11 cm × 15.7 cm × 5.9 cm (W×H×D), can be attached directly to the machine as it is IP54-protected. The functions are programmed and visualized using the 'Lasal' engineering tool.