Abstract: A marking sensor includes a detection unit for detecting markings on a processed material and for acquiring data based on the detected markings, at least one circuit output for outputting the acquired data, an evaluation unit for determining absolute output data on the detected markings based on the data acquired by the detection unit, and an interface for outputting the absolute output data; also a method is used for evaluating markings on a processed material that are detected by a detection unit, data are acquired based on the markings, and they may be output at least one circuit output and transferred to an evaluation unit in a marking sensor, in the evaluation unit, absolute output data on the detected markings are determined based on the data acquired by the detection unit, and the absolute output data on the detected markings is output at an interface of the marking sensor.