In this paper a number of practical applications of one sensor type the `Seampilot OPS' made in the Netherlands will be presented and developments like adaptive fill-in properties, and multi-layer possibilities will be illustrated. The working principles and the communication of the system with various controllers has been described briefly. With the implementation of the optical sensor system in industrial daily practice, experience was made regarding the many industrial demands. For these demands new software developments had to be included in the total package. By means of some practical examples a number of such software developments will be explained. The Seampilot OPS system is sufficiently flexible to be used with many different controllers.