1794-IJ2XT
1794-IJ2XT
1794-IJ2XT
一 選型要點(diǎn)
S7-300 PLC的選型原則是據(jù)生產(chǎn)工藝所需的功能和容量進(jìn)行選型,并考慮維護(hù)的方便性、備件的通用性,以及是否易于擴(kuò)展和有無特殊功能等要求。選型時(shí)具體注意以下幾方面:
(1)有關(guān)參數(shù)確定。一是輸入/輸出點(diǎn)數(shù)(I/O點(diǎn)數(shù))確定。這是確定PLC規(guī)模的一個(gè)重要依據(jù),一定要根據(jù)實(shí)際情況留出適當(dāng)余量和擴(kuò)展余地。二是PLC存儲容量確定。注意當(dāng)系統(tǒng)有模擬量信號存在或要進(jìn)行大量數(shù)據(jù)處理時(shí),其存儲容量應(yīng)選大一些。
【價(jià)格】???如此低價(jià),僅此一家
【貨期】???3億庫存,下單后即可發(fā)貨
【質(zhì)量】???全新原裝,進(jìn)口正品
【保障】???質(zhì)保一年
【售后服務(wù)】一年內(nèi)包退換
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