This TIA-course concentrates in particular on hard- and software failures and its troubleshooting. In that context the fundamental handling of operating and supervising systems, drive components and the foundations of standard communication via MPI and PROFIBUS DP is explained. The systematic fault finding shortens the non-operating periods of the machine/plant. All topics are made clear by practical training with a model consisting of an automation system S7-300, decentralized bus ET200S, Touch Panel TP 170B, drive MM420 and a conveyor model. After the course a computer assisted learning environment in the internet with WBT “SIMATIC ProTool/Pro” is activated.