潤星(廈門)石油制品有限公司
主營產(chǎn)品: DCS,PLC |

潤星(廈門)石油制品有限公司
主營產(chǎn)品: DCS,PLC |
參考價 | 面議 |
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更新時間:2015-07-09 16:57:13瀏覽次數(shù):120
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WF2C2002-0N
WF2C2002-0N
WF2C2002-0N
TEMP (臨時變量):暫時保存在局部數(shù)據(jù)堆棧中的變量。同一級POU的臨時變量使用局部數(shù)據(jù)堆棧中的同一塊物理存儲區(qū),類似于公用的布告欄,誰都可以往上面貼布告,后貼的布告將原來的布告覆蓋掉。每次調(diào)用POU之后,不再保存它的臨時變量的值。每次調(diào)用FC和FB時,首先應初始化它的臨時變量(寫入數(shù)值),然后再使用它,簡稱為先賦值后使用。
STAT(靜態(tài)變量):保存在背景數(shù)據(jù)塊中,背景數(shù)據(jù)塊相當于每次調(diào)用功能塊時對應的被控對象的私人數(shù)據(jù)倉庫。功能塊執(zhí)行完后,背景數(shù)據(jù)塊中的數(shù)據(jù)不會丟失,以供下次執(zhí)行功能塊時使用。
所以在功能塊執(zhí)行完后需要保存的變量應使用靜態(tài)變量。
======倉庫現(xiàn)貨======
1756-CNB/D 4
1756-IB16/A 2
P0911PV 3
1784-PCC 1
1756-L55M22/A 1
TRICONEX 8312 2
1756-DNB/A 3
140NOM21100 3
IC693BEM331 2
MVI56-PDPS 1
140NOE77101 2
1761-NET-DNI 1
1769-OB16P 4
1769-OF8V 1
1769-ECR 1
1769-SDN 1
1757-SRM 1
1756-CNBR/D 1
1203-GU6 1
IC697BEM731 1
1756-L61 1
IC697BEM713 1
IMASI23 1
140XTS00200 7
1756-TBNH 13
1756-IF16/A 1
1756-HSC/B 2
1606-XLS480E 1
1756-IB32/B 7
1756-OB32/A 4
1756-L62/B 1
1794-ACN15 1
DNBT P0971WV-OF 4
DNBT P0971WV-OG 1
140CPS11420 3
1756-TBCH 5
1756-TBSH 2
1756-CFM/A 8
1756-OW16I/A 3
1756-PB75/B 1
1756-PA75 1
1756-A17 1
1756-L55M12 1
1756-IF8 2
1756-OF8 2
1746-NI8 3
1747-L552/B 1
SST-PB3-CLX 1
SST-PB3-PCU 2
1756SC-IF8U 1
1756-ENBT 1
IC697MDL653H 1
IC697CPU780H 1
IC697PWR710M 2
IC697MDL740F 1
TRICONEX 3511 1
TRICONEX 3700A 1
TRICONEX 3503E 1
TRICONEX 3604E 1
TRICONEX 3805E 1
TRICONEX 4351B 1
TRICONEX 3008 1
TRICONEX 3806E 1
TRICONEX 9674-810
TRICONEX 9563-810
TRICONEX 9853-610
TRICONEX 9753-110
TRICONEX 9771-210
TRICONEX 9662-610
MVI56-PDPMV1 1
PTQ-PDPMV1 1
1769-PA2 3
1756-DHRIO 2
1746-OB32 1
1746-NIO4V 1
1746-NI4 1
1746-IV32 2
1746-OV32 1
1747-L532 1
1756-OF6VI 1
1756-IV32 1
1756-IF6I 3
1756-IF4FXOF2F 1
1756-L63/B 1
1769-L32C 1
1747-ASB 2
1747-L553 1
1747-L542 1
1756-OF4 1
======倉庫現(xiàn)貨======
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