Bihl+Wiedemann's customers benefit from our great experience with Gateways and bus couplers and therefore can find a great variety of “special solutions” for various coupling requirements. The Master Simulators not only make it possible to test the Gateway functionality of the ASi Masters and couplers, but also the connected slaves without the need for PLC logic. For example, the PROFIBUS Master Simulator can be used to work with any PROFIBUS slave using its gsd file. The Master Simulator can even carry out automated data exchange using Windows dll files, irrespective of the data being cyclic or acyclic. Many of our customers are manufacturers of PROFIBUS slaves themselves and greatly appreciate the simplicity and universality of these Master Simulators.