Abstract: The invention relates to a method for checking a time-discrete signal value of a sensor for freedom from errors, wherein the signal value of the sensor is converted into a first measured value and a second measured value by two different evaluating devices of an electronic system, wherein the first and second measured values are transmitted to a control system by the electronic system, and the control system calculates a first control signal from the first measured value and, in parallel thereto, a second control signal from the second measured value, wherein the control system comprises a comparator which compares the first control signal and second control signal to verify the identity thereof.

Abstract: A process and a device for accelerated execution of a program by a stored-program controller (SPC) on a machine. The machine has actuators actuated by the SPC to perform machine actions and sensors to output machine status signals. According to the process, the subsequent actuator action is triggered independently of whether the machine action caused by the previous actuator triggering has been completed. For this purpose, a status evaluation device is connected between the SPC and the machine, which receives the actuator triggering signals and the status signals output by the machine, and which generates therefrom an acknowledge signal indicating the completion of a machine action caused by actuator triggering; the acknowledge signal is supplied to the SPC as feedback signals describing the machine.