基于PLC和组态软件的自动配料系统的设计.doc

基于PLC和组态软件的自动配料系统的设计 院 系 专 业 班 级 学 号 姓 名 指导教师 负责教师 摘 要实时多任务、开放性、灵活性、通用性和可靠性生产过程控制系统发展和现状的概述配料系统工作原理和配料控制系统的总体设计重点描述了包括硬件设计、编程环境及软件设计在内的西门子PLC在配料系统中应用一些细节组态软件及其在上位机监控系统中一些基本设计以及PLC与上位机之间的通讯。关键词：；；Abstract Programmable Logic Controller (PLC) is widely used in industry for its high reliability and performance/price ratio. The configuration software also enjoys fast development due to the popularization of personal computer, and is recognized of the value originated from the merits such as real-time multitasking, openness, flexibility, versatility, and reliability. Based on PLC and configuration software, the control system and supervisory system of automatic ingredient system are designed in this paper. First, the Siemens PLC S7-200 is used to control automatic proportion system. The proportioning system included the requirements of automatic proportioning, weighing, and loading. Next the ZuTaiWang software is used to build the real-time supervisory system. The system can realize the real-time data-logging, as well as various visual. Paper’s contents mainly include that the industrial control system development and present situation outline. The ingredient system principle of work and the ingredient control systems design, described with emphasis including the hardware design, the programming environment and software design SIMENS PLC in ingredient systems application some details, the configuration software configuration king and in the host computer supervisory system some basic designs, as well as communication between PLC and host computer. Keywords: programmable controller; proportioning; configuration software 目 录 第1章 绪论 1 1.1 背景 1 1.1.1 PLC的发展趋势 2 1.1.2 组态软件的发展趋势 3 1.2 毕业设计任务及要求 6 1.3 毕业设计内容及安排 6 第2章 系统硬件设计 7 2.1 S7-200系统概述 7 2.1.1 系统功能概述 7 2.1.2 PLC的基本结构 8 2.1.3 S7-200 CPU和扩展模块 9 2.2 自动配料系统 10 2.2.1 控制要求 10 2.2.2 自动配料系统控制图 11 2.2.3 I/O地址表 13 2.2.4 配料过程分析 13 第3章 自动配料系统和监控系统的设计 15 3.1 PLC编程软件STEP7及其应用 15 3.1.1 PLC的工作原理 15 3.2 自动配料系统的设计 17 3.