描述

GE ic693mdl740

PLC編程是PLC的精髓技術(shù)，其很大程度上決定了一臺(tái)PLC的質(zhì)量和功能。如今，在社會(huì)的各領(lǐng)域生產(chǎn)中，特別是工業(yè)生產(chǎn)，PLC得到廣泛的運(yùn)用，進(jìn)而迅猛的發(fā)展。我們看看身邊的石油，化工等產(chǎn)業(yè)，都有著其身影。那么PLC主要應(yīng)用于哪些領(lǐng)域？

? ? 1、開(kāi)關(guān)量的邏輯控制

? ? 這是PLC最基本、最廣泛的應(yīng)用領(lǐng)域，它取代傳統(tǒng)的繼電器電路，實(shí)現(xiàn)邏輯控制、順序控制，既可用于單臺(tái)設(shè)備的控制，也可用于多機(jī)群控及自動(dòng)化流水線。如注塑機(jī)、印刷機(jī)、訂書(shū)機(jī)械、組合機(jī)床、磨床、包裝生產(chǎn)線、電鍍流水線等。

? ? 2、運(yùn)動(dòng)控制

? ? PLC可以用于圓周運(yùn)動(dòng)或直線運(yùn)動(dòng)的控制。從控制機(jī)構(gòu)配置來(lái)說(shuō)，早期直接用于開(kāi)關(guān)量I/O模塊連接位置傳感器和執(zhí)行機(jī)構(gòu)，現(xiàn)在一般使用專(zhuān)用的運(yùn)動(dòng)控制模塊。如可驅(qū)動(dòng)步進(jìn)電機(jī)或伺服電機(jī)的單軸或多軸位置控制模塊。世界上各主要PLC廠家的產(chǎn)品幾乎都有運(yùn)動(dòng)控制功能，廣泛用于各種機(jī)械、機(jī)床、機(jī)器人、電梯等場(chǎng)合。

? ? 3、數(shù)據(jù)處理

? ? 現(xiàn)代PLC基本都擁有精準(zhǔn)高端的PLC編程語(yǔ)言，具有數(shù)學(xué)運(yùn)算（含矩陣運(yùn)算、函數(shù)運(yùn)算、邏輯運(yùn)算）、數(shù)據(jù)傳送、數(shù)據(jù)轉(zhuǎn)換、排序、查表、位操作等功能，可以完成數(shù)據(jù)的采集、分析及處理。這些數(shù)據(jù)可以與存儲(chǔ)在存儲(chǔ)器中的參考值比較，完成一定的控制操作，也可以利用通信功能傳送到別的智能裝置，或?qū)⑺鼈兇蛴≈票?。?shù)據(jù)處理一般用于大型控制系統(tǒng)，如無(wú)人控制的柔性制造系統(tǒng)；也可用于過(guò)程控制系統(tǒng)，如造紙、冶金、食品工業(yè)中的一些大型控制系統(tǒng)。

? ? 4、通信及聯(lián)網(wǎng)

? ? PLC通信含PLC間的通信及PLC與其它智能設(shè)備間的通信。隨著計(jì)算機(jī)控制的發(fā)展，工廠自動(dòng)化網(wǎng)絡(luò)發(fā)展得很快，各PLC廠商都十分重視PLC的通信功能，紛紛推出各自的網(wǎng)絡(luò)系統(tǒng)。新近生產(chǎn)的PLC都具有通信接口，通信非常方便。

? ? 5、過(guò)程控制

? ? 過(guò)程控制是指對(duì)溫度、壓力、流量等模擬量的閉環(huán)控制。作為工業(yè)控制計(jì)算機(jī)，PLC能編制各種各樣的控制算法程序，完成閉環(huán)控制。PID調(diào)節(jié)是一般閉環(huán)控制系統(tǒng)中用得較多的調(diào)節(jié)方法。大中型PLC都有PID模塊，目前許多小型PLC也具有此功能模塊。PID處理一般是運(yùn)行專(zhuān)用的PID子程序。過(guò)程控制在冶金、化工、熱處理、鍋爐控制等場(chǎng)合有非常廣泛的應(yīng)用。

? ? 6、模擬量控制

? ? 在工業(yè)生產(chǎn)過(guò)程當(dāng)中，有許多連續(xù)變化的量，如溫度、壓力、流量、液位和速度等都是模擬量。為了使可編程控制器處理模擬量，必須實(shí)現(xiàn)模擬量（Analog）和數(shù)字量（Digital）之間的A/D轉(zhuǎn)換及D/A轉(zhuǎn)換。PLC廠家都生產(chǎn)配套的A/D和D/A轉(zhuǎn)換模塊，使可編程控制器用于模擬量控制。

? ? PLC編程是PLC的精髓部分，是其不可以缺少的核心內(nèi)容。在高科技下，工業(yè)的發(fā)展越來(lái)越迅猛，社會(huì)對(duì)PLC的需求將會(huì)越來(lái)越多，學(xué)習(xí)好PLC編程勢(shì)在必行。

產(chǎn)品承諾：
保?證?全新原裝進(jìn)口,
保?證?安全準(zhǔn)時(shí)發(fā)貨，
保?證售后服務(wù)質(zhì)量，
優(yōu)勢(shì)價(jià)格，大量現(xiàn)貨。

主營(yíng)DCS系統(tǒng)配件
機(jī)器人系統(tǒng)配件
大型伺服系統(tǒng)配件
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GE ic693mdl740

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