The PLC elevator control system, like other types of elevator control systems, basically consists of a signal control system and a traction control system []. The basic structure of the elevator PLC control system is as follows: The main equipment includes the main PLC system and its extensions, the mechanical system, the cage control tray, the outer scaffolding tray of the elevator. hall, rolling mill, door mechanism, cruise control and main towing system, etc.The heart of the control system is the PLC server. Control plates, suction plates, wells and safety bows are fed into the PLC through the PLC input interface and are stored in memory and in the beacons.The PLC elevator control system, like other types of elevator control systems, basically consists of a signal control system and a traction control system []. The basic structure of the elevator PLC control system is as follows: The main equipment includes the main PLC system and its extensions, the mechanical system, the cage control tray, the outer scaffolding tray of the elevator. hall, rolling mill, door mechanism, cruise control and main towing system, etc.The heart of the control system is the PLC server. Control plates, suction plates, wells and safety bows are fed into the PLC through the PLC input interface and are stored in memory and in the beacons.