The student workbook "Introduction to PROFINET" offers a comprehensive introduction to PROFINET network technology. It is written in German and consists of 72 pages that cover both theoretical and practical aspects of automation technology. The theoretical section addresses fundamental networks, specific networks in automation technology, and the SIMATIC system devices in PROFINET. The practical section allows learners to understand the hardware and software configuration of a PROFINET test rack using the SIMATIC Step 7 software. Numerous screenshots support learning and the application of the acquired knowledge. The worksheets are designed to promote post-class review and facilitate self-directed learning through text entries, the completion of circuit diagrams, and the processing of text-based tasks.