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廈門四點零自動化科技有限公司主營產(chǎn)品優(yōu)勢供應(yīng) 充足庫存
  ABB:ABB Masterpiece200/AC450,ABB Masterview 850/1,Advant OCS,MOD 30/MODCELL,MOD 300,Bailey INFI90,ABB Procontic,ABB Procontrol.等系統(tǒng)備件。
  FOXOBORO I/A：AW51B,P0400YC FBM02,P0400YV FBM18,P0400ZE FBM04,P0914WM FBM241C,FBM217 P0914TR,FBM242 P0916TA,CP40B P0961BC,FBM44 P0950BN等。
  (美國ALLEN BRADLEY):1746/ 1747/ 1756/ 1771/ 1785/ 2711觸模屏等系列產(chǎn)品、700DC直流接觸器。
  霍尼韋爾 Honeywell：DCS系統(tǒng)備件模件、HONEYWELL TDC系列， QCS,S9000等備件。
  ALSOM MOTOROLA MVME系列：MVME 162-12，MVME 167-02A,MVME177-004等系列。
  HITACHI 日立：AIC200,CAM810,CPU800,CRT860,CTR850,CRT870,FLP800A,DHW850等。
  TOSHIBA 東芝：DSV1-DA,VCM1X4 2N8C2184P001-G,VCMIX4,VPCPX1,VBMPX1,等系列。
  系統(tǒng)工程：自動化系統(tǒng)開發(fā)設(shè)計，調(diào)試、低壓配柜、變頻器控制系統(tǒng)、PLC自動控制系統(tǒng)、各種節(jié)能成套系統(tǒng)(風(fēng)機(jī)，水泵，起重機(jī)，輸送機(jī)等專用)
  PLC返回數(shù)據(jù) E5 后，確認(rèn)讀取命令，發(fā)送以下數(shù)據(jù)：
  10 2 0 5C 5E 16
  然后上位機(jī)VB程序接受到以下數(shù)據(jù)：
  68 16 16 68 0 2 8 32 3 0 0 0 0 0 2 0 5 0 0 4 1 FF 4 0 8 22 78 16
  首先識別目標(biāo)地址和源地址，確認(rèn)是這次申請的返回數(shù)據(jù)，然后經(jīng)過校驗檢查，正確后解析出第26號數(shù)據(jù)(&H22)即為VB100字節(jié)的數(shù)據(jù)。
  3、串口寫入數(shù)據(jù)程序，以寫VB100數(shù)據(jù)單元為例：
  Dim Str_Write(0 To 37) ‘定義發(fā)送的數(shù)據(jù)為字節(jié)為元素的數(shù)組。
  Str_Write (37) = &H16 ‘相應(yīng)的數(shù)組元素賦值，按照以下格式
  Str_Write (35) = &H10 ‘要寫入的數(shù)據(jù)值

  

  
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