A method and a system for the automated control of a technical installation (2) having a plurality of installation components (4) that are interconnected by data transmission in order to carry out process steps. Control commands (S) which are generated by a central control device (6) are fed to these components in accordance with process control signals (P) that are sent to the device. Process control signals (P) that are generated in a mobile operator unit (12) are wirelessly transmitted to interfaces (14) and are forwarded by the latter to the control device (6). The installation components (4) for which the system considers the process control signals (P) received from the mobile operator unit (12) during the generation of the corresponding control commands (S) are released using a local characteristic value (O) for the mobile operator unit (12).