基于PLC的金属压铸机监控系统设计.doc

前言 PAGE 1 基于PLC的金属压铸机监控系统设计 摘 要 可编程序控制器广泛用于运动控制、定位控制和转矩控制，一些制造商生产运动控制单元机器的运作。根据工业现场的需要和可编程控制器(PLC)自身特点，本设计为基于压铸机的PLC 控制系统。在这个设计中，本设计采用西门子公司PLC S7-300系列可编程控制器为例。结合了书籍和资料，说明了PLC的工作原理、软件使用方法、PLC的硬件系统设计及PLC软件系统设计。实现了对压铸机的液压系统的控制。在该设计中，PLC作为主机，压铸机作为从机，构成基于压铸机的PLC的控制，完成对压铸机的整个工艺流程的控制，可反映压铸机在整个工作过程的工作状况。现代可编程控制器在各种各样的方式可以被编程，从梯形逻辑语言到更加传统的编程语言例如BASIC和C语言。另一个方法是状态逻辑，被设计的一种非常高级编程语言根据状态转换图的可编程控制器编程。 关键词：PLC，编程语言，压铸机，液压传动  Design of metal die-casting machine monitoring system based on PLC ABSTRACT Programmable controllers are widely used in motion control,positioning control and torque control,Some manufacturers produce motion control units. According to the demand of industry the spot and programmable controller(PLC) oneself characteristics,this design for according to die-casting the PLC of machine control system.In this design,the series programmable controller of the company PLC S7-300 of this design adoption Siemens is an example.Combined book and data,explained design and the PLC software system design of the hardware system of PLC work principle,software operation method,PLC.Carried out to press the control of system towards die-casting machine of liquid.In that design,the PLC is a host,die-casting the machine is from the machine,constitute according to the control of PLC of die-casting the machine,and the completion can reflect to die-casting machine in the whole work condition of work process to the control which die-castings the whole craft process of machine.Modern PLC can be programmed in a variety of ways,from ladder logic to more traditional programming languages such as BASIC and C.Another method is HYPERLINK /wiki/State_LogicState Logic,a HYPERLINK /wiki/Very_high-level_programming_languagevery high-level programming language designed to program PLC based on HYPERLINK /wiki/State_diagramstate transition diagrams. KEY WORDS: PLC,Programming language,Die-casting machine,The liquid presses to spread to move 目　录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc30590 前　言