Construction Of Cutter Suction Dredger Integrated Control System

Based on the development of field bus in automatically control domain, consulting the characteristics of advanced and mature foreign dredging technology, leading expert's fuzzy control theory and field bus technology, as the 3500m3 cutter suction dredger, this paper developed a set of PLC-based network integrated monitor and control system.The system takes PLC controllers as the processing core, and communicated with the host computers through Industrial Ethernet System. By the six PLC Remote I / O stations, the Ethernet communication, it gathers the signals from the components on the dredger and controls the field bus equipments by the programs in the computers. With this monitoring system, it saves the hardware, simplifies the operation, reduce maintenance costs, reduce the labor intensity of operation personnel, improve system reliability, and leave space for future upgrades. Finally, it improves the efficiency of the dredger dredging.In this paper, the integrated control system is studied and designed in depth. We focuses on the equipments and methods from hardware to software of establishing the system, the preparation of PLC and HMI programs, success in the auto swing, auto spud carrier movement. The completed system realizes the automatically monitoring and remote-communication of the dredging work of cutter suction dredger.