Abstract:The bus control technology of CAN bus and 485 bus is widely used in the system design, at present in the field of missile test launch and control. The unit often using the internal CPCI bus or PXI bus. The control system based on CAN bus is often concentrated in the car or a test room, which can not be extended to achieve large-scale control or remote control. To establish the network measurement and control system of large bandwidth, large capacity, automation. LXI bus meets the system requirements based on the development of the necessary technology is urgent. The system can realize the automatic test system, remote monitoring, remote data recording and analysis through the design of network test control. It can achieve large-scale test and control system, and do not have to visit the site, greatly saving human resources.