范文编号:ZD188 西门子S7-200PLC 范文字数:26769,页数:49 摘 要 行车是在生产中用于输送物料的重要设备。过去的传统控制方式大都是采用人工操纵的半自动控制方式。然而在许多生产场合,这种半自动控制方式早已显示出了它的缺点及很多的不足。所以,为了提高工作效率,促进生产自动化和减轻劳动强度,现在已经需要实现行车的自动化控制。 ABSTRACT Traffic in the production of important materials for transportation equipment.Past the traditional control method are the use of artificial manipulation of semi-automatic way. However, production in many cases, the semi-automatic control has long demonstrated its many shortcomings and deficiencies. Therefore, in order to improve efficiency and promote the production of automation and reduce labor intensity and now need to achieve the automation of traffic control. This design is the design of PLC control car in the electroplating system, not only can greatly improve the production efficiency, convenient to a variety of control functions, and can adapt to the harsh environment in which traffic would not need to take too much hardware measures. The design of a dedicated lane plating lead hook through the traffic before and after the exercise and the rise and fall hook Chlorophytum the left and right movements and movement to achieve the process of electroplating. Lane hook driven forward / backward, respectively, after each plating tank, when, respectively, to the top of each slot, the limit switch by the control commands issued to inform the PLC so that hook drop down to the present time and the beginning of regular plating tank. From time to time after the rising hook, up from time to time to stay after a period of time needed to allow excess liquid flows back to the next slot to slot, when the traffic back to the original position after the end. In the design of the system was completed to connect the hardware and software design, including the PLC hardware to connect the external wiring, main circuit and control circuits, software and instructions, including table ladder. Keywords: PLC; plating; dedicated traffic
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