The current operating states, setpoints and actual values, parameters, indices, faults and alarms are displayed on the display panel.

German, English, French, Italian, Spanish and Chinese are stored on the CU320‑2 Control Unit CompactFlash card as operator panel languages. The desired language must be downloaded to the AOP30 prior to commissioning. In addition to these preinstalled languages, Russian and Portuguese (Brazil) are also available for subsequent installation. Further languages are available on request.