Summary
PLC（Programmable Logic Controller）has been widely applied for control systems of many demesnes as a new generational industry controller. Along with society's unceasing development, the building is more and more high, but the elevator became the high level building to have the equipment. After humanity's more than centuries unremitting endeavors, the elevator already from the handle switch operation elevator, the push-button control elevator develops to the present group control elevator, has made the indelible contribution for the high level transportation.
In the paper, I specifically recount the design process of hardware and software about PLC control elevator, listing the main hardware circuit and it also analyzes the using function of the main output points. This system is a design to use Mitsubishi FX2N-128MR and expanding unit PLC to control a sixteen floor simulation model. In the PLC controlling elevator system, running of elevator achieve through software. As floors more and more, the design uses method of transform, when the 16-divided into single-and double the number of floors to control. By the control software elevator can come true its function, to have a better correspondence relationship between control software and the action of elevator, I divide the control software several parts: calling program、switch door program、transform speed program、display program of floor and so on. They play to control elevator working correctly.
Keywords: PLC；Elevator；Otrollable -like programmer
