Industrial Ethernet is a young technology that has clear advantages over classic fieldbus systems: It offers a seamless network infrastructure from the sensor/actuator level via the control level to the office level, and thus seamlessly transparent communication. PROFINET® offers an address range for an almost unlimited number of devices and can send and receive significantly larger data volumes at high speed. Fieldbus technology is suitable to connect complex devices at the field and control level. It is characterized by lower installation costs and simple expansion of sensors and actuators. PROFIBUS® is therefore suitable for the transport of smaller data volumes and is limited to a small number of stations.