液體自動(dòng)混合裝置的PLC控制系統(tǒng)設(shè)計(jì)

摘 要

PLC是以計(jì)算機(jī)技術(shù)為核心的通用自動(dòng)控制裝置，也可以說它是一種用程序來改變控制功能的計(jì)算機(jī)。隨著微處理器、計(jì)算機(jī)和通信技術(shù)的飛速發(fā)展，可編程序控制器PLC已在工業(yè)控制中得到廣泛應(yīng)用，而且所占比重在迅速的上升。PLC主要由CPU模塊、輸入模塊、輸出模塊和編程裝置組成。它應(yīng)用于工業(yè)混合攪拌設(shè)備，使得攪拌過程實(shí)現(xiàn)了自動(dòng)化控制、并且提升了攪拌設(shè)備工作的穩(wěn)定性，為攪拌機(jī)械順利、有序、準(zhǔn)確的工作創(chuàng)造了有力的保障。本文所介紹的多種液體混合的PLC控制程序可進(jìn)行單周期或連續(xù)工作，具有斷電記憶功能，復(fù)電后可以繼續(xù)運(yùn)行。另外，PLC還有通信聯(lián)網(wǎng)功能，再通過組態(tài)，可直接對(duì)現(xiàn)場(chǎng)監(jiān)控、更方便工作和管理。

關(guān)鍵詞：PLC，液位傳感器，定時(shí)器
Automatic Liquid Mixing Device The of PLC Control System Design

ABSTRACT

PLC is a general-purpose computer technology as the core of the automatic control device, you can also say that it is an application to change the control computer. With the microprocessor, computer and communications technology, the rapid development of programmable logic controller PLC is widely used in industrial control, and the rapid rise in the proportion. Mainly by the PLC CPU module, input module, output module and the programming device composition. It is used in industrial mixing equipment, making the mixing process of automated control, and work to enhance the stability of the mixing device for mixing machine smooth, orderly, and accurate work to create a strong guarantee. This paper described a variety of liquids can be mixed in the PLC control program for single-cycle or continuous work, with power and memory function, can continue to run after restoration. In addition, PLC communication networking functions as well, and through configuration, can be directly on-site monitoring, work and management more convenient.

KEY WORDS: PLC, level sensor, timer
 
目　錄

前　言 1
第1章液體自動(dòng)混合系統(tǒng)方案設(shè)計(jì) 3
1.1方案設(shè)計(jì)原則 3
1.2 系統(tǒng)的整體設(shè)計(jì)要求 3
1.3控制方式系統(tǒng)的要求的設(shè)計(jì) 4
1.4系統(tǒng)方案的設(shè)計(jì)思想 6
第2章液體自動(dòng)混合系統(tǒng)的硬件設(shè)計(jì) 7
2.1硬件選型 7
2.1.1 PLC機(jī)型選擇 7
2.1.2 PLC容量選擇 8
2.1.3 I/O模塊的選擇 9
2.1.4 電源模塊的選擇 10
2.2 PLC I/O點(diǎn)分配 11
2.2.1分析原理 11
2.2.2 PLC的I/O接線圖 12
2.3主電路的設(shè)計(jì) 12
2.4 液體混合控制系統(tǒng)示意 13
第3章 液體自動(dòng)混合系統(tǒng)的軟件設(shè)計(jì) 15
3.1 程序設(shè)計(jì)的一般方法 15
3.1.1經(jīng)驗(yàn)設(shè)計(jì)法 15
3.1.2邏輯設(shè)計(jì)法 15
3.1.3順序設(shè)計(jì)法 15
3.2 PLC控制的相關(guān)流程圖 16
3.2.1 控制流程圖 16
3.3 可編程控制器梯形圖 17
第4章 組態(tài)設(shè)計(jì) 21
4.1組態(tài)王軟件 21
4.2組態(tài)王相關(guān)操作 21
第5章 系統(tǒng)調(diào)試 27
5.1系統(tǒng)模擬調(diào)試 27
5.2系統(tǒng)聯(lián)機(jī)調(diào)試 27
第6章 系統(tǒng)常見故障分析及維護(hù) 31
6.1 系統(tǒng)常見故障分析及維護(hù) 31
6.2  系統(tǒng)故障分析及處理 31
6.2.1 PLC主機(jī)系統(tǒng)故障分析及處理 31
6.2.2 PLC的I/O端口系統(tǒng)故障分析及處理 32
6.2.3 現(xiàn)場(chǎng)控制設(shè)備故障分析及處理 32
6.3 系統(tǒng)抗干擾性的分析和維護(hù) 32
結(jié)　論 34
謝 辭 35
參考文獻(xiàn) 36
附　錄 37
外文資料翻譯 39