The SINUMERIK HT 8 operates according to the Thin Client principle. The operator software is already installed on a SINUMERIK NCU/PCU. Screen content from the NCU/PCU is transferred to the HT 8 and key information from the HT 8 to the NCU/PCU via Industrial Ethernet. The HT 8 display shows the same operator interface that is displayed on the standard operator panels of the SINUMERIK control system.

The operator interface can be customized if required (see SINUMERIK Integrate).