| The traditional coal-transporting system of the power plant is a semiautomatic system which based on relay and artificial manual way. Because of the bad spot environment of coal-transporting system, the worker’s health are fully injured, Because of the wild range of coal-transporting system, With the enlarging scale of the power plant and the demanding amount of coal, the traditional coal-transporting system couldn’t fulfill the need of power plant.According to coal-transporting of QinHuangDao power plant, this thesis introduces the designing of control website based on PLC and coal-transporting supervisor system. Of upper-machine. It also describes the composing of hardware and the accomplishing of software. This project not only decreases the working amount of development. The control of coal-transporting system belongs to procedural control field. Plc itself if of certain anti-interruption ability and relatively adapts to industrial spot environment. adjusting a running. Many coal-transporting system of power plant can’t steadily run in the long time and the un capability of anti-interruption is the main reason. This thesis makes a deep research towards realizing stable running of procedural control system and put forward the concrete methods and effects which can make several kinds of anti-interruption measures put into practice in procedural control system, which have important practical value in engineering.By the thought of facing object and the design of structurizing, we apply the way of sub-program in PLC, which not only facilitates realizing many running ways, but also increases maintaining ability and reliability of the program. The actual running of coal-transporting. Indicates the effective control of coal-transporting system and the link of company’s information system, so that the managing and management and control could be intergraded. At present, this system has put into practice and shown the better ability. |
