It presents the control system, SINAMICS S120 drive and PLC founction, including the hardware connection, function debugging,machine parameter setting,etc. so as to meet actual needs of designers,operators,programmers and maintainance personnel regarding SINUMERIK 802D Solution Line.It also covers digital programming and system operation. It focuses on the applicaion of SNUMERIK 802D Solution Line with pictures and texts,which is quiet usable. The book is a technical training course on Siemens CNC technology with good applicability,which can be used by engineers and technicians of SINUMERIK 802D Solution Line and refered by faculty and students majored in automation and mechatronics in colleges and universities.