This system uses the present quite popular industry field bus CAN-bus to complete the communication between elevator caller controller and main controller, and proposed its software and hardware and the design method of communication protocol.

• 本系统采用目前比较流行的工业现场总线CAN总线完成呼梯控制器与主控之间的通信,并提出了其软硬件和通信协议的设计方法。