描述
當為16位運算,執(zhí)行條件X0由OFF→ON時,[D0]x[D2]→[D5,D4]。源操作數(shù)是16位,目標操作數(shù)是32位。當[D0]=8,[D2]=9時,[D5,D4]=72。最高位為符號位,0為正,1為負。
當為32位運算,執(zhí)行條件X0由OFF→ON時,[D1、D0]x[D3、D2]→[D7、D6、D5、D4]。源操作數(shù)是32位,目標操作數(shù)是64位。當[D1、D0]=238,[D3、D2]=189時,[D7、D6、D5、D4]=44982,最高位為符號位,0為正,1為負。
如將位組合元件用于目標操作數(shù)時,限于K的取值,只能得到低位32位的結(jié)果,不能得到高位32位的結(jié)果。這時,應(yīng)將數(shù)據(jù)移入字元件再進行計算。
用字元件時,也不可能監(jiān)視64位數(shù)據(jù),只能通過監(jiān)視高位32位和低32位。V、Z不能用于[D]目標元件。
歐美品牌停產(chǎn)的,常用的“PLC”備品備件
我司產(chǎn)品應(yīng)用于以下領(lǐng)域:
1,《發(fā)電廠DCS監(jiān)控系統(tǒng)》
2,《智能平鋼化爐系統(tǒng)制造》
3,《PLC可編程輸送控制系統(tǒng)》
4,《DCS集散控制系統(tǒng)》
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5,《智能型消防供水控制系統(tǒng)》
6,《化工廠藥液恒流量計算機控制系統(tǒng)》
7,《電氣控制系統(tǒng)》造紙,印染生產(chǎn)線,變電站綜合自動化控制系列
本特利,英維思,伍德沃德,福克斯波羅、西屋、瑞恩、施耐德莫迪康、ABB、AB、西門子、摩托羅拉、GE發(fā)那科、安川、博世力士樂,ACSO,力士樂等各大品牌的DCS系統(tǒng)配件,機器人系統(tǒng)配件,大型伺服系統(tǒng)備件。
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