【摘要】 针对船舶和港口自动化设备中,机械凸轮的有触点、易损坏及功能固定等降低自动化设备可靠性的缺陷,研制了电子凸轮,即一种基于可编程序控制器的自动化元件.该电子凸轮具有多功能、可编程、可在线修改等优点.电子凸轮的使用使船舶和港口自动化设备的控制精度提高、故障率降低,提高了可靠性,简化了系统的硬件设备,充分利用了资源,大大降低了生产和维修成本.更多还原

【Abstract】 In the ship’s and dock’s automation equipment, some sequence control is completed by the machine cam. But, reliability is reduced due to contact and easy damage and fuaction fixed. This paper introduces the design of an electronic cam based on PLC.It analyzes the characteristics of applying the electronic cam in the ship’s and dock’s automation equipment. The device of the electronic cam is introduced with an example of dock’s turning over machine.更多还原