6SL3352-1AG28-5AA1

6SL3352-1AG28-5AA1

1. 開發(fā)時(shí)間較長(zhǎng)：系統(tǒng)的開發(fā)需要比較長(zhǎng)的時(shí)間，因?yàn)樾枰獙?duì)各種系統(tǒng)設(shè)備的控制進(jìn)行詳細(xì)研究和分析，才能設(shè)計(jì)出符合實(shí)際需求的程序。

2. 初始成本高：PLC控制系統(tǒng)的完整部分需要較高的成本，特別是對(duì)于一些大型企業(yè)或復(fù)雜的系統(tǒng)來說，成本更加高昂。

3. 編程難度大：PLC控制系統(tǒng)的編程掌握要求較高，需要對(duì)控制邏輯的實(shí)現(xiàn)較為了解和熟悉。對(duì)于有些用戶來說學(xué)習(xí)、掌握控制邏輯要求費(fèi)時(shí)費(fèi)力。

4. 系統(tǒng)可擴(kuò)展性低：由于PLC控制系統(tǒng)是按照用戶的具體要求進(jìn)行定制的，所以在程度上限制了系統(tǒng)的可擴(kuò)展性。如果要擴(kuò)展系統(tǒng)功能，可能需要重新設(shè)計(jì)和重新編寫程序，增加時(shí)間和成本。

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