CAN485 is used for data exchange between CAN-bus field bus and RS-485 bus interface converter, and supports Modbus RTU protocol. CAN485 interface converter integrated a RS-485 channel and a CAN bus channel can be easily embedded using RS-485 interface for communication nodes, do not need to change the original hardware architecture enables the device to obtain the CAN bus communication interface, to achieve between the equipments of RS-485 and ca..