By using the PROFIsafe protocol, the S3000 PROFINET IO Professional enables safe and reliable bus communication and can be configured for complex applications with up to eight protective fields and eight warning fields. The PROFINET IO bus connection processes all signals from the higher-level control system (FPLC). The safety laser scanner is connected to the control system via a standardized generic station description (GSDML). In addition to copper wires, optical fiber cables are also used as the transmission medium. The managed 2-port switch of the I/O module has the option of being equipped with a SCRJ plug connector for optical fiber cables or a RJ45 for copper wires. The system plug with built-in configuration memory enables quick device replacement. It is easy to configure simultaneous monitoring of separate protective fields. For the operation of large fieldbus installations, the process map provides signals for easy administration and diagnostics from a central location.