毕业论文：五工位随机送料器PLC控制系统毕业论文.doc

淮阴师范学院毕业论文(设计)  毕 业 设 计  学生姓名刘将学 号240704016学院物理与电子电气工程学院专 业电气工程及其自动化题 目五工位随机送料器PLC控制系统    指导教师李正 教授/硕士   2011年5月       摘要：本设计是设计五工位随机送料器PLC控制系统，实现小车的可控制随机左右运行及装卸部件。设计报告对PLC的特点、工作原理和发展趋势作了简要阐述；对西门子S7-200系统的部分重要指令做了扼要介绍。根据五工位送料器控制要求，通过工作过程分解，画出控制系统工作流程图，给出了I/O地址分配表；在系统软件上，采用位逻辑（标准触点LD\A\O\LDN\AN\ON、正负跳转EU\ED、输出=I）指令，比较指令（AWIN1，IN2）,定时计数指令（T37）,传送指令（MOVW IN,OUT）等指令和子程序调用、顺序控制等方法进行程序设计。通过对程序的编译和上载到CPU的PUN模式下模拟运行验证后，本设计符合控制要求。另外，报告还对设计的五工位随机送料器PLC控制系统的外围部件（如三相异步电动机、行程开关、继电器、定时计数器）的工作原理、使用参数与PLC的外部电气连接图， 做了分析研究。   关键词：五工位；送料器；西门子S7-200                            Abstract: This design designs five location stochastic feeder PLC control system, realizes the car to be possible to control the stochastic about movement and the loading and unloading part.The design reported to the PLC characteristic, the principle of work and the trend of development has made the brief elaboration; System part important instruction has made the main introduction to Simens the S7-200.According to five location feeder control request, decomposes through the work process, draws the control system work flow chart, has given the I/O address distribution list; On the system software, uses the position logic (standard electronic contact LD \ A \ O \ LDN \ AN \ ON, positive and negative skips EU \ ED, outputs =I) the instruction, the comparison order (AW IN1, IN2), fixed time counts the instruction (T37), the transmission instruction (MOVW IN, OUT) and so on methods and so on instructions and subroutine call, sequential control carry on the programming.Through and uploads to the procedure translation after under the CPU PUN pattern the simulation run confirmation, this design conforms to the control requirement.Moreover, reported also to design five location stochastic feeder PLC control system periphery part (for example three-phase asynchronous motor, limit switch, relay, fixed time counter) the principle of work, th