Abstract: A system for arrangement of operations and connections between a computer or the like involved with a process and a control station needed by the process operator for communication with the computer and for control of the process in case of failure in the computer operation, and for arrangement of the communication between these devices and the process, wherein there are parallel measurement signal channels leading from the process to the computer and the control station and, similarly, parallel control signal channels leading from said devices to the process, respectively, and wherein, additionally, the control station is provided with separate push buttons or the like for at least each measurement of interest, with which push buttons the display of the measurement signal as well as the corresponding control signal may be switched on to the control station, and with which a message concerning the selected measurement may be delivered to the computer.