Abstract
This design introduced the domestic electric hoist's development present situation, simultaneously introduced the programmable controller principle of work, the shaping basis. Domestic electric hoist existence very many insufficiencies, were not in the very high situation have realized in the safety coefficient using the remote control control electric hoist in the certain distance wireless control. I designed a PLC-based electric hoist, introduced by the choice of the S7-200 PLC.PLC control system in a wide range of applications, can use the electric hoist there are also a shortage, so the status quo in order to improve the design of wireless control can under certain conditions achieve its objective.According to the design requirements of the PLC's input and output I / O for the distribution, and the preparation of the system is running the ladder. TWH92 components on the working principle and design of the remote control and the control circuit, and the remote control of the electric hoist, in 50 meters of their remote control operation.
