描述

CACR-F2TBI-EREV.F04

首先得明確自己想要學(xué)什么品牌的PLC，三菱的，西門子的，還是歐姆龍的，下面我就假如選擇了西門子這個(gè)品牌為例，再具體明確到學(xué)習(xí)s7-200，還是s7-300，甚至是s7-1200等大中型PLC，再假如我選擇的是西門子s7-200的PLC，明確了方向之后就是對(duì)一些基礎(chǔ)知識(shí)的掌握。
所說(shuō)的基礎(chǔ)就是了解s7-200PLC的型號(hào)及其區(qū)別，系統(tǒng)構(gòu)成，CPU的硬件結(jié)構(gòu)，而且對(duì)其擴(kuò)展模塊也應(yīng)先有個(gè)了解，還有CPU的參數(shù)和模塊的參數(shù)也是應(yīng)該了解的。再到對(duì)s7-200系統(tǒng)的選型，以及系統(tǒng)與模塊的安裝接線，包括數(shù)字量、模擬量的接線等。
等到對(duì)這些基礎(chǔ)有了一定的了解之后，就是對(duì)軟件的操作和使用的學(xué)習(xí)了，對(duì)于STEP 7 Micro/WIN 這個(gè)軟件，首先也要熟悉軟件界面，常用工具圖標(biāo)，常用菜單工具，還要熟悉符號(hào)表、狀態(tài)表、數(shù)據(jù)塊、系統(tǒng)塊的使用，還有對(duì)電腦編程接口的設(shè)置以及通訊，程序上傳下載的常用操作。
除以上列舉之外，還需要知道PLC的工作過(guò)程以及程序的結(jié)構(gòu)，掌握數(shù)制的轉(zhuǎn)換。在這之后就到掌握存儲(chǔ)器以及尋址這方面的知識(shí)了，這部分的內(nèi)容很重要，因?yàn)橹蟮膽?yīng)用基本指令等進(jìn)行編程時(shí)就要經(jīng)常用到這些內(nèi)容。當(dāng)你掌握了存儲(chǔ)器和尋址，那么就可以開(kāi)始學(xué)習(xí)一下基本指令了，常用的位邏輯指令、傳送指令、定時(shí)器、計(jì)數(shù)器、比較指令、整數(shù)計(jì)算、移位/循環(huán)指令等都是需要掌握一下的。對(duì)這些基本指令需要平常多練習(xí)，并且能夠熟練地運(yùn)用，這才是真的掌握了。
這就是前面所說(shuō)的基礎(chǔ)知識(shí)，只有掌握了這些基礎(chǔ)之后，你才能更好的學(xué)習(xí)之后的模擬量處理PID、通訊、高速脈沖輸出、配方等。
學(xué)習(xí)都是循序漸進(jìn)，一步一步學(xué)習(xí)的，所以，莫浮躁。

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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