摘  要：介紹了一種基于PLC和WinCC的空氣自動控制系統(tǒng)方案，通過介紹系統(tǒng)軟硬件的組成和特點，論述了PLC和WinCC實現(xiàn)空氣監(jiān)測和控制的具體方法。系統(tǒng)以S7-300PLC為控制器，用WinCC輸入各種參數(shù)以及顯示系統(tǒng)狀態(tài),具有抗干擾能力強和人機交互性好等特點。 關(guān)鍵詞：PLC  S7-300  WinCC  變頻器 Abstract: This paper introduces an automatic air control system based on PLC and WinCC. Through presenting the composition and characteristics of the system hardware and software, this paper discusses the spe[登陸后可查看全文]