This book presents a comprehensive description of the configuration of devices and network for the S7-300 components inside the new engineering framework TIA Portal. You learn how to formulate and test a control program with the respective languages LAD and FBD or STL and SCL. The book is rounded off by configuring the distributed I/O with PROFIBUS DP and PROFINET IO using SIMATIC S7-300 and data exchange via Industrial Ethernet. SIMATIC is the globally established automation system for implementing industrial controllers for machines, production plants and processes. SIMATIC S7-300 has been specially designed for innovative system solutions in the manufacturing industry and it offers the optimal solution for applications in centralized and distributed configurations. Alongside standard automation safety technology and motion control can also be integrated. Open-loop and closed-loop control tasks are formulated with the STEP 7 Professional V11 engineering software in the field-proven programming languages Ladder Diagram (LAD), Function Block Diagram (FBD), Statement List (STL), and Structured Control Language (SCL). The TIA Portal user interface is tuned to intuitive operation and encompasses all the requirements of automation within its range of functions: from configuring the controller, through programming in the different languages, all the way to the program test. Users of STEP 7 Professional V12 will easily get along with the descriptions based on the V11. With start of V12, the screens of the technology functions might differ slightly from the V11.