：柯麗梅
在PID中有不同的物理量，例如溫度、壓力及閥門開度等，它們的量綱單位均不同，所以要進行規格化工作。
規格化概念及方法：
PID參數中重要的幾個變量，給定值，反饋值和輸出值都是用0.0~1.0之間的實數表示，
而這幾個變量在實際中都是來自與模擬輸入，或者輸出控制模擬量的
因此，需要將模擬輸入轉換為0.0~1.0的數據，或將0.0~1.0的數據轉換為模擬輸出，這個過程稱為規格化
規格化的方法：（即變量相對所占整個值域范圍內的百分比 對應與27648數字量范圍內的量）
對于輸入和反饋，執行：變量*100/27648，然后將結果傳送到PV-IN和SP-INT
對于輸出變量 ，執行：LMN*27648/100，然后將結果取整傳送給PQW即可；
現有一個檢測0—3KPa的壓力傳感器用來檢測水箱的液位高度，而水箱的高度 只有300mm,那怎樣在程序里實現標度變換？
答：用差壓變送器測液位，那是就是根據phg 1Kpa對應100MM＝＝0.1M
3KPA 對應300MM 懂？
用PID換算就是
可以外設(I/O)或以浮點格式輸入過程變量。CRP_IN功能根據以下公式將PV_PER外設值轉換為介于 -100和 +100 %間的浮點格式值：
PV_NORM功能根據以下公式統一CRP_IN輸出的格式：
PV_NORM的輸出 = (CPR_IN的輸出) * PV_FAC + PV_OFF
PV_FAC的默認值為1，PV_OFF的默認值為0。
PV_FAC設置為300，PV_OFF為0即可，那么輸出PV即為實際值（單位為MM）
電氣成套設備，首先，它是電氣設備。和開關和接觸器斷路器變壓器是一類的。但是它有它的*性。因為它是成套的。也就是說是把一系列的設備通過一定的規范（圖紙、技術要求、工藝要求）組合在一起，形成一個有機的整體。這樣的設備叫成套設備。通常咱們做的開關柜、箱式變電站等等都算作成套電氣設備。這是行內的一個叫法。
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