1756-IT6I+++1756-IT6I
ActivateScreenByNumber
應(yīng)用:根據(jù)變量值將畫面切換到另一畫面。
畫面由其畫面號標識
計算
1、DecreaseValue
應(yīng)用:從變量值中減去給定的值。
X = X - a
說明:系統(tǒng)函數(shù)使用同一變量作為輸入和輸出值。當(dāng)該系統(tǒng)函數(shù)用于轉(zhuǎn)換數(shù)值時,必須使用幫助變量。可使用系統(tǒng)函數(shù)“SetValue”將變量值分配給幫助變量。
如果在報警事件中組態(tài)了函數(shù)但變量未在當(dāng)前畫面中使用,則無法確保在 PLC 中使用實際的變量值。通過設(shè)置“連續(xù)循環(huán)”采集模式可以改善這種情況。
2、IncreaseValue
應(yīng)用:將給定值添加到變量值上。
X = X + a
說明
系統(tǒng)函數(shù)使用同一變量作為輸入和輸出值。當(dāng)該系統(tǒng)函數(shù)用于轉(zhuǎn)換數(shù)值時,必須使用幫助變量??墒褂孟到y(tǒng)函數(shù)“SetValue”將變量值分配給幫助變量。
如果在報警事件中組態(tài)了函數(shù)但變量未在當(dāng)前畫面中使用,則無法確保在 PLC 中使用實際的變量值。通過設(shè)置“連續(xù)循環(huán)”采集模式可以改善這種情況。【公 司】: 廈門泰尼電氣有限公司
【主 營】: AB、GE、施耐德等各類PLC產(chǎn)品
【價 格】: 電議
【發(fā)布人】: 張亮
【電 話】: 18030028083
【所在地】: 福建 - 廈門
【座 機】: 0592-6809819
【來 源】: 供應(yīng)信息 > 電工、電氣 > PLC
【Q Q】: 2314094943
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