The ifm O2D object detection sensor with rotation position independent contour detection solves tasks like presence, position, and quality control, as well as sorting and counting tasks. It is optimally suited for applications with recurring and fixed object contours. 
The sensor captures the contour image of the part to be inspected and compares it with the contours of one or more models in a reference image. The rotational position-independent object detection compares the test object with the specifications and sends results of "good" / "bad" to the higher-level PLC, including position and rotational position. The parameterization can be done at the device level or via an easy to understand, step-by-step parameterization software tool.