IC646MPT001，IC646MPT001，IC646MPT001
PLC梯形圖編程的幾個步驟
（一）決定系統所需的動作及次序。
當使用可編程控制器時，最重要的一環是決定系統所需的輸入及輸出。輸入及輸出要求：
(1) 第一步是設定系統輸入及輸出數目。
(2) 第二步是決定控制先后、各器件相應關系以及作出何種反應。
（二）對輸入及輸出器件編號
每一輸入和輸出，包括定時器、計數器、內置寄存器等都有一個唯一的對應編號，不能混用。
（三）畫出梯形圖。
根據控制系統的動作要求，畫出梯形圖。
梯形圖設計規則
（1）觸點應畫在水平線上，并且根據自左至右、自上而下的原則和對輸出線圈的控制路徑來畫。
（2）不包含觸點的分支應放在垂直方向，以便于識別觸點的組合和對輸出線圈的控制路徑。
（3）在有幾個串聯回路相并聯時，應將觸頭多的那個串聯回路放在梯形圖的最上面。在有幾個并聯回路相串聯時，應將觸點最多的并聯回路放在梯形圖的最左面。這種安排，所編制的程序簡潔明了，語句較少。
（4）不能將觸點畫在線圈的右邊。
（四）將梯形圖轉化為程序
把繼電器梯形圖轉變為可編程控制器的編碼，當完成梯形圖以后，下一步是把它的編碼編譯成可編程控制器能識別的程序。
這種程序語言是由序號（即地址）、指令（控制語句）、器件號（即數據）組成。地址是控制語句及數據所存儲或擺放的位置，指令告訴可編程控制器怎樣利用器件作出相應的動作。
（五）在編程方式下用鍵盤輸入程序。
（六）編程及設計控制程序。
（七）測試控制程序的錯誤并修改。
（八）保存完整的控制程序。Allen Bradley 1492-N4 - Marking Strip - (3 rolls of 25')
Allen Bradley 1492-CB3-G100 Circuit Breaker 10 Amp ! WOW !
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Allen Bradley 1492-BF Power Block Standard Feed Through
Allen Bradley 140-MN-0240 Starter Manual Motor Series-B 1.6-2.4AMP ! WOW !
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Allen Bradley 140M-C2E-C20 Ser. A Motor Protector 14.5-20A 575V 3 Pole ! WOW !
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Allen Bradley 140M-C2E-B25 Breaker 2.5 Amp WOW
Allen Bradley 140M-C2E-B10 Ser. B Manual Motor Starter 600V 0.63-1A ! WOW !
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Allen Bradley 1305 VFD AC Drive 1305-BA03A 0.75KW 1 HP
ALLEN BRADLEY 104993 R05 REGULATOR CARD
Allen Bradley 100-M12NZ243 Mini Contactor 24VDC 12A ! WOW !
Allen Bradley 100-DNX41R Auxiliary Contactor ! WOW !
Allen Bradley 100-C37D00 Contactor 110/120V ! WOW !
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Allen Bradley 100-C16ZD10 Contactor ! WOW !
Allen Bradley 100-C16DJ400 MCS-C Contactor 16A 24VDC IEC ! WOW !
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Allen Bradley 100-C12B10 Contactor 12Amp 440/480V Coil ! WOW !
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ALLEN-BRADLEY PROXIMITY SWITCH 200mA 872C-D3NN12-D4 WOW
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Allen-Bradley Auxiliary Contact 1.0-1.6A 193-TA B16 A
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ALLEN-BRADLEY 800T-H5A *NIB* SELECTOR SWITCH TYPE 4/13 SER T (2F0)
ALLEN-BRADLEY 800T-A6A *NIB* PUSH BUTTON TYPE 4/13 SER T RED (2F0)
ALLEN-BRADLEY 800T-16HX2KB6*NIB*ILLUMINATED SELECTOR SWITCH SER T 120V 1.2W(2E2)
ALLEN-BRADLEY 800H-R2D1 *NIB* PUSH BUTTON SWITCH TYPE 4/4X SER F (2F0)
ALLEN-BRADLEY 800H-JR4A *NIB* 3 POS SELECTOR SWITCH TYPE 4 4X/13 SER F (2F0)
ALLEN-BRADLEY 800H-AR6A *NIB* PUSH BUTTON SWITCH TYPE 4/4X/13 SER F (2F0)
ALLEN-BRADLEY 700-ZBR520AZ1 SAFETY RELAY SER A (1D1)
ALLEN-BRADLEY 700-NA40 Deck Cartridge Relay ! !
ALLEN-BRADLEY 700-N5 Surge Suppressor 150VAC ! !
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ALLEN-BRADLEY 2090-U3CBB-DM12 CN1 CONTROL INTERFACE BOARD * * SER A (3E2)
ALLEN-BRADLEY 199-MSMV1 MovSuppressor 12-55VAC 12-77VDC
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ALLEN-BRADLEY 1794-TB2 FLEX I/O TERMINAL BASE *NIB* SER A
ALLEN-BRADLEY 1794-PS1/A POWER SUPPLY MODULE SER A (3A2)
ALLEN-BRADLEY 1771-P7 B POWER
