Circuit arrangement for controlling an approach sensor or safety sensor by switching the area that the sensor is monitoring, has a twin computer arrangement, for generating command signals, that meets accepted safety standards

摘要

Circuit arrangement for reading in of switching signals to a sensor with the switching signals generated by a control unit. The control unit (4) has two computer units (6, 7) with separate outputs (10a-d, 11a-d) for input of signals to the sensor (2) via coupling units (12a-b). Combinations of input signals to the sensor correspond to a particular switch state as selected by the control unit.