文档介绍：基于PLC的数字电压表的设计
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目录
摘要 3
前言 5
第一章绪论 6
6
7
第二章系统整体方案设计 8
8
三菱FX系列PLC概述 8
13
可编程控制器选型的一般考虑 14
可编程控制器控制系统设计的基本原则 15
16
22
第三章系统的硬件设计 23
-4AD 23
25
FX2N-32MR型PLC 28
—FXGOT 930 28
28
启动 29
31
标度变换(工程量变换)—现场物理量的显示 31
32
程序输入和编辑 32
结束语 36
参考文献 37
致谢 38
附录PLC常用程序 37

基于PLC的数字电压表的设计
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摘要
这是一篇关于《基于PLC的数字典压表的设计》的开发论文。传统的电压表一般采用指针式面板, 精度低, 可视距离近,已不适应社会发展需要。随着智能化微机测量和控制技术的迅速发展, 以PLC为核心的数字电压表已凸显出其优势。本文介绍以PLC为核心的数字式电压表设计, 该电压表具有性价比高, 使用方便, 精度高等特点, 在工业生产等电子测量领域有广泛应用。
本文首先介绍PLC的历史与发展,并着重论述了PLC设计数字电压表的意义,接着对PLC的选型进行了分析,并对FX系列的PLC做了概述。
在本文的硬件部分,主要对模拟量输入输出模块FX-4AD, FX2N-32MR型PLC及人机界面F930进行了详细的介绍。
本文对PLC的初学者而言,有着极大的引导入门价值。
【关键字】PLC 、FX-4AD、FX2N-32MR 、F930、数字电压表。
Abstract
This is one about "based on PLC Digital Voltmeter's Design" development paper. The traditional voltmeter uses the indicator type kneading board generally, the precision is low, the visual range is near, did not meet the social development need. Along with the intellectualized puter survey and control technology's rapidly expand, as the core digital voltmeter has highlighted its superiority take PLC. This article introduced that take PLC as the core digital voltmeter design, this voltmeter has the performance-to-price ratio to be high, the easy to operate, the precision higher characteristic, in electronic surveying domains and so on industrial production has the widespread application.
This article first introduced that PLC the history and the development, and elaborated the PLC design digit voltmeter's significance emphatically, then has carried on the analysis to the PLC shaping, and has made the outline to FX series PLC.
In this article hardware part, mainly has carried on the detailed introduction to FX-4A