IC697MDL750現(xiàn)貨
隨著“制造2025”“互聯(lián)網(wǎng)+”“網(wǎng)絡(luò)強(qiáng)國(guó)”等戰(zhàn)略的深入實(shí)施,通信及自動(dòng)控制技術(shù)、傳
感技術(shù)等信息技術(shù)快速發(fā)展、不斷滲透應(yīng)用,“數(shù)字工廠”概念應(yīng)運(yùn)而生。
通信設(shè)備制造業(yè)迎轉(zhuǎn)型拐點(diǎn)
信息通信行業(yè)是國(guó)民經(jīng)濟(jì)基礎(chǔ)性、戰(zhàn)略性、先導(dǎo)性產(chǎn)業(yè),對(duì)我國(guó)經(jīng)濟(jì)轉(zhuǎn)型升級(jí)有著重要的支撐作用,
而通信設(shè)備制造業(yè)為信息通信行業(yè)提供基礎(chǔ)設(shè)施,是其基礎(chǔ)性領(lǐng)域。
通信設(shè)備制造業(yè)呈現(xiàn)出以下特點(diǎn):產(chǎn)業(yè)鏈鏈條清晰,產(chǎn)業(yè)規(guī)模和新產(chǎn)品市場(chǎng)空間以技術(shù)發(fā)展為爆發(fā)點(diǎn)
;需求方規(guī)模經(jīng)濟(jì)效應(yīng)突出;對(duì)其他行業(yè)出高滲透性;市場(chǎng)競(jìng)爭(zhēng)日趨加大,行業(yè)需求,利潤(rùn)
空間受到
我們要學(xué)習(xí)的是SIEMENS的PLC,軟件版本是STEP 7 V5.4,控制器與編程軟件之間采用的是MPI通訊方式。
所要熟練掌握的是PLC機(jī)柜內(nèi)的布線方式。能熟練地將變送器的AI信號(hào)和開(kāi)關(guān)按鈕的DI信號(hào)接入PLC系統(tǒng)中,并能通過(guò)正確地編寫(xiě)并調(diào)試邏輯,將邏輯輸出的DO正確輸出到相應(yīng)的指示燈或繼電器。
1.一個(gè)機(jī)架上的S7-300PLC模板的安排
在CPU單元右邊可以安裝不超過(guò)八個(gè)模板,模板的配置原則是接口模板(IM.如果有)總是位于3號(hào)槽,個(gè)
信號(hào)模板(SM)的左邊。
2.確定模板的地址:
S7300有兩種編址方法,種是面向槽位編址的地址分配,是300的缺省值的編址方法,,即確定模板起始地址取決于它所在的機(jī)架號(hào)和槽位號(hào),第二種方法是面向用戶的地址分配,即由用戶自由分配。
數(shù)字量模板地址:一個(gè)輸入點(diǎn)或輸出點(diǎn)的地址由字節(jié)部分和位部分組成,,字節(jié)地址取決于其模板的起始地址,位地址是印在其模板上的數(shù)碼號(hào),范圍是0-7,共8位。
模擬量模板的地址:模擬量輸入通道或輸出通道的地址總是一個(gè)字地址,如果塊模擬量模板插在第4號(hào)槽,則它的缺省起始地址為256,隨后的模擬量模板的起始地址每一槽增加16。
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IC697MDL750
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IC697MDL750
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IC697MDL750
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