Following the West, the West following the lift, West following the pioneer series passenger elevator 
 West following the pioneer series passenger elevator 
 West following the pioneer series passenger elevators, full compliance with the Siemens Totally Integrated Automation concept, the design of programming through a seamless, seamless data management, seamless communication module of the organic combination, to continuously improve the quality of the operation of the elevator control system, and by eliminating technical barriers, reducing the operational failure, and reduce operating costs, improve operational efficiency and reliability.