【正文】 霹 ...............................................................9 PLC 的定義 霹 ............................................................................................................................................................. 9 PLC 的構(gòu)成 霹 ............................................................................................................................................................ 9 PLC 的特點 霹 ........................................................................................................................................................... 10 PLC 的輸入與輸出 霹 ............................................................................................................................................. 12 PLC 的發(fā)展趨勢 霹 .................................................................................................................................................. 13 PLC 的選型原則 霹 ................................................................................................................................................. 14 2 PLC 控制與繼 電器控制的比較 霹 .....................................................19 PLC 控制與繼電器控制兩者區(qū)別 霹 .................................................................................................................. 19 控制繼電器存在的缺點 霹 ..................................................................................................................................... 19 PLC 相對 于繼電器線路的優(yōu)勢 霹 ....................................................................................................................... 20 霹 ........................................................................................................................................................................................... 21 3 舞臺燈光的 PLC 設(shè)計 霹 .............................................................22 舞臺燈光的設(shè)計原則 霹 ......................................................................................................................................... 22 舞臺燈光系統(tǒng)的工藝要求 霹 ................................................................................................................................ 22 舞臺燈光工藝流程圖 霹 ...................................................................................................................................... 22 霹 ........................................................................................................................................................................................... 24 霹 ........................................................................................................................................................................................... 24 霹 ........................................................................................................................................................................................... 24 舞臺燈光控制要求 霹 .............................................................................................................................................. 24 霹 ........................................................................................................................................................................................... 25 舞臺燈光的 PLC 設(shè)計 霹 ....................................................................................................................................... 25 霹 ..................................................................................26 霹 ..................................................................................26 霹 ..................................................................................26 霹 ..................................................................................26 霹 ..................................................................................26 霹 ..................................................................................26 霹 ..................................................................................27 霹 ..................................................................................27 霹 ..................................................................................27 霹 ..................................................................................27 霹 ..................................................................................27 霹 ..................................................................................27 霹 ..................................................................................27 霹 ..................................................................................27 舞臺燈光與組態(tài)設(shè)計 霹 霹 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