| In recent years, with the development of computer, control, communication and network technology, the structure of automation system changes greatly, and the management information system based on the network integrating automation system has been formed gradually. Network Control System (NCS) is a new way for the application of monitoring, control and management of ship engine room automation abroad. During the way of ship automation, information and intelligence, develop NCS based on network with PLC controller is more and more popular.In this dissertation , the author had analyzed the controlled component of ship engine room, and referred to the "Rules and regulations for the Construction and Classification of Sea_gonging Steel Ships" of China Classification Society, designed the monitoring and control system by the three layered network system of Netlinx(EtherNet/IP, ControlNet, DeviceNet)based on fieldbus technology, satisfied the monitored object timeliness, reliability, the secure requirement.ControlLogix series PLC controller was used in the dissertation, in the way of objected oriented thinking, modular design, developed diesel automatic starting, automatic quasi synchronizing engaging, automatic frequency and load regulation, automatic leveled starting & download and safe protection programs.The configuration software RSView32 was used for designed the control and monitoring software of PC, and the human machine interface soft was also been designed combined with the control function and operation habit of automatic ship engine room, it was friendly and visualized and easy to use for the operator .Finally, the network control and monitoring system of ship engine room was tested by the simulating experiment. During the experiment engaging and disengaging control of the diesel generator set were achieved, and the simulating curve collected shows that the monitoring programs of this dissertation finished the network control function of the diesel &generator set rightly. |
