abstract This article elaborated the Mitsubishi Corporation produces has the high performance price compared to miniature programmable controller Mitsubishi FX2N series PLC, the design realizes three-phase step-by-steps the electric motor to reverse, the acceleration, the deceleration as well as the step control system. This system has used the programmable controller which fully in training narrated (PLC) various design knowledge and the method, cause this system reliably stable, enables its application scope to obtain the expansion.Programmable Logic Controller (PLC) is at the core microprocessor, automatic control technology, computer technology and communication technology integration and the development of new industrial control devices. The current PLC has basically replaced the traditional relay widely used in industrial control and the control of various areas, PLC has leapt industrial automation three pillars of the first.
