需要金幣： 1000 個(gè)金幣 |
資料包括：完整論文 |  |
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| 轉(zhuǎn)換比率：金額 X 10=金幣數(shù)量， 例100元=1000金幣 | 論文字?jǐn)?shù)：11486 |  | |
| 折扣與優(yōu)惠：團(tuán)購(gòu)最低可5折優(yōu)惠 - 了解詳情 | 論文格式：Word格式(*.doc) |  |
摘要:隨著網(wǎng)絡(luò)、計(jì)算機(jī)、數(shù)據(jù)庫(kù)等相關(guān)技術(shù)的不斷發(fā)展和完善，也極大地完善了自動(dòng)化系統(tǒng)。根據(jù)配料生產(chǎn)的特點(diǎn)和要求，介紹了皮帶秤S7-300 PLC自動(dòng)配料控制系統(tǒng)的設(shè)計(jì)方案及仿真、使用方法。系統(tǒng)完成了配料系統(tǒng)的設(shè)計(jì)要求，并對(duì)控制系統(tǒng)的主要控制功能以及結(jié)構(gòu)作了詳細(xì)的介紹。而且著重說(shuō)明了STEP7軟件選用、安裝、梯形圖程序設(shè)計(jì)及整體系統(tǒng)的調(diào)試等情況。 PLC的應(yīng)用極大地提高了產(chǎn)品的質(zhì)量和生產(chǎn)效率，在整個(gè)配料行業(yè)具有廣闊的應(yīng)用前景。配料系統(tǒng)在諸多行業(yè)的工業(yè)生產(chǎn)過(guò)程中占有極其重要的地位，配料工序的合理性、穩(wěn)定性、準(zhǔn)確性以及快速性直接影響到以后各生產(chǎn)環(huán)節(jié)的順利進(jìn)行。PLC的優(yōu)點(diǎn)是外部接線簡(jiǎn)單，內(nèi)部程序可變，在不改變接線的情況下，可以重新設(shè)計(jì)程，施工周期短，內(nèi)部軟繼電器是寄存器，沒(méi)有觸點(diǎn)，故障率低，壽命長(zhǎng)，抗干擾能力強(qiáng)，執(zhí)行時(shí)間短，應(yīng)用指令多，可實(shí)現(xiàn)復(fù)雜的控制功能等等。傳統(tǒng)繼電器的不足之處是有觸點(diǎn)系統(tǒng),故障率高，平均修復(fù)時(shí)間長(zhǎng)，壽命短，功耗大，改變系統(tǒng)功能，將要重新接線，工作量大，容易出錯(cuò)，執(zhí)行時(shí)間長(zhǎng)等等。這就是采用PLC來(lái)進(jìn)行控制的原因。同時(shí)，對(duì)PLC的結(jié)構(gòu)、工作原理和分類(lèi)都做了介紹。 關(guān)鍵詞 皮帶秤；s7-300；PLC；配料
Abstract:With the computers, networks, databases and other related technologies continue to develop and improve, the automation system consummate great. In this thesis, the ingredients produced in accordance with the characteristics and requirements, introduced the belt weigher S7-300 PLC automatic control system design and simulation.The thesis completed the system design requirements for ingredients, and control systems, as well as the main control structure in detail. And highlighted the STEP7 software selection, installation, ladder programming and debugging the whole system and so on. Application of PLC significantly improved product quality and production efficiency,Ingredients in the whole industry has broad application prospects. Batching system in many sectors of industrial production process of an extremely important position, the rationality of process ingredients, stability, accuracy and speed after a direct impact on the smooth progress of production.The advantages of PLC are simple external wiring, internal process variable, do not change the wiring in the circumstances, be included in the design process, a short work cycle, the internal relay is soft register, there is no contact, low failure rate, long life, anti-jamming ability, short execution time, application instructions and more can be achieved and so the complexity of control functions. traditional relay inadequacies have contact systems, the high failure rate, average repair time, a shorter life-span, power consumption, and change system will be re-wiring, heavy workload, prone to error, execution time and so on. This is the use of PLC for control reasons. At the same time,Of the PLC structure, working principle and classification are introduced. Keywords belt weigher s7-300 PLC ingredients |
