描述
梯形圖兩側(cè)的垂直公共線稱為母線(Busbar),。在分析梯形圖的邏輯關(guān)系時,為了借用繼電器電路圖的分析方法,可以想象左右兩側(cè)母線(左母線和右母線)之間有一個左正右負(fù)的直流電源電壓,母線之間有“能流”從左向右流動。右母線可以不畫出。
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主營:世界知名品牌的PLC、DCS系統(tǒng)備件模塊
①Allen-Bradley(美國AB)系列產(chǎn)品》
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③General electric(通用電氣)系列產(chǎn)品》
④Westinghouse(美國西屋)系列產(chǎn)品》
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據(jù)通信及處理等。Invensys Triconex:冗余容錯控制系統(tǒng)、基于三重模件冗余(TMR)
結(jié)構(gòu)的zui現(xiàn)代化的容錯控制器。
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