In this datasheet we can find description about ambient, circuit, interface, sensor, and output. There are lots of explanation about distance sensor, threshold, range, and switching threshold are explained in this datasheet.
The datasheet presents things like distance, error, accuracy, and data. These are grabbed from this datasheet:
Red laser as the light emitter 3 0V 4 C/Q1 Features • Smallest device with PRT for applications as measuring sensor • High reproducibility irrespective of the surface • Minimal black-white difference • 2 Switching points per output • IO-link interface for service and process data = Light on = Dark on Pinout 1 The VDM28 distance measurement device employs Pulse Ranging Technology (PRT). It has a repeat accuracy of 5 mm with an operating range of 0.2 … 8 m and an absolute accuracy of 25 mm. The sensor is highly resistant to ambient conditions. The compact housing of the Series 28 photoelectric sensors, with dimensions of 88 mm (height), 26 mm (width) and 54 mm (depth), make it the smallest device available in its class.
Even more, this datasheet presents more such as distance, distance sensor, mounting, and measuring range.