1408-UPT1-E3現(xiàn)貨

對自有業(yè)務(wù)板塊進行騰挪是GE、西門子這些工業(yè)巨頭常用的戰(zhàn)略手段。自我減重是為了讓這些工
業(yè)巨頭更好地前行。從目前來看，減重之后，各大工業(yè)巨頭都將未來發(fā)展的重心聚焦于數(shù)字化工業(yè)。
目前看來，以西門子、GE和ABB為首的三大工業(yè)巨頭在數(shù)字化領(lǐng)域已經(jīng)找準了自己的戰(zhàn)略方向。在全
球市場上，西門子在深耕專業(yè)領(lǐng)域的基礎(chǔ)之上，借助IT與網(wǎng)絡(luò)技術(shù)為客戶打造數(shù)字化解決方案，不斷
向上延伸；GE更加傾向基于IT與網(wǎng)絡(luò)技術(shù)打造通用平臺，實現(xiàn)橫向拓展；作為后來者，ABB則以下沉
策略形成自下而上的戰(zhàn)略路徑，反撲智能制造市場。
作為工業(yè)互聯(lián)網(wǎng)的實踐者，數(shù)字化是GE未來工業(yè)的重頭戲。在2017年10月25日的“Mind +Machine
”的年度大會上，GE新任CEO弗蘭納里與微軟CEO納德拉（Nadella）聯(lián)合對話中，再次強調(diào)這一戰(zhàn)略
重點不會動搖

5. 生成電機的FB
電機的FB包括以下邏輯功能：
(1) 啟動和停止輸入。
(2) 允許設(shè)備操作的一系列互鎖(泵和攪拌電機)。互鎖狀態(tài)存儲在OB1的臨時局域數(shù)據(jù)(L堆棧)中(“Motor_enable”和“Valve_enable”)，并且當電機的FB被處理時與啟動和停止的輸入進行邏輯組合。
(3) 來自設(shè)備的反饋必須在一個特定的時間內(nèi)出現(xiàn)，否則就假定有故障或錯誤出現(xiàn)，并使電機停止。
(4) 時間點和響應時間或錯誤故障循環(huán)持續(xù)時間都必須被指定。
(5) 如果啟動按鈕被按下并且電機被使能，則設(shè)備自行接通并運行直至按下停機按鈕。
(6) 當設(shè)備接通時，一個定時器啟動運行，如果在定時器的時間到達之前未接到來自設(shè)備的響應信號，則停機。
在STEP 7中，每一個被不同的塊調(diào)用的塊一定要在調(diào)用它的塊之前生成，因此在樣板程序中必須在OBl之前先生成電機的FB。STL編程語言的FBl程序部分如下：
Network l 啟動停止和鎖存
A(
O #Start
O #Motor
)
AN #Stop
= #Motor
Network 2 啟動監(jiān)控
A #Motor
L #Response_Time
SD #Timer No
AN #Motor
R #Timer No
L #Timer No
T #Timer bin

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1408-UPT1-E3

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1408-UPT1-E3

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1408-UPT1-E3

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