可编程控制器的工作过程分以下三个阶段:
( 1 ) 输入处理
程序执行前,可编程控制器的全部输入端子的通/断状态读入输入映像寄存器。在程序执行中,即使输入状态变化,输入映像寄存器的内容也不变。直到下一扫描周期的输入处理阶段才读入这变化。另外,输入触点从通( ON )→断( OFF )或从断( OFF )→通( ON )变化到处于确定状态止,输入滤波器还有一响应延迟时间(约 10ms )。
( 2 ) 程序处理
对应用户程序存储器所存的指令,从输入映像寄存器和其它软元件的映像寄存器中将有关软元件的通/断状态读出,从 0 步开始顺序运算,每次结果都写入有关的映像寄存器,因此,各软元件( X 除外)的映像寄存器的内容随着程序的执行在不断变化。
输出继电器的内部触点的动作由输出映像寄存器的内容决定。
( 3 )输出处理
全部指令执行完毕,将输出映象寄存器的通/断状态向输出锁存寄存器传送,成为可编程控制器的实际输出。
可编程控制器的外部输出触点对输出软元件的动作有一个响应时间,即要有一个延迟才动作。
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102341734 Hot Trap Alu - d=206mm mit Gewindeloch
TELEMECANIQUE 034532, XUF N12301
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SIEMENS 3SB3000-4LD01-Z Y01-V1
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SIEMENS 3RV10 21-4AA15
KRAUS & NAIMER A440,E47231/002 ASO, CA4rotary switch
GATES 5M850, polyflex belt
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TELEMECANIQUE 064607, XCK-J50511
FESTO 6844, U-1/2-B
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BUSH AP D2R74V or BUSH P D2R74U - NEW :BUSH AP D2R74V
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ARCOL HS300 22K J
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Fujikin Rückschlagventil valve C.100501 68.6 kPa 16.2 MPa
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AEG 2000000393, Thyro P Profibus Steckkarte
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Festo, MS6-DL-1/2, 529817, Druckaufbauventil
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AVL BV1742, Kabel BBY
LEMO FGG.1B.307.CLAD52Z
RITTAL SK3110.000 /SK3110000, temperature regulator
INA 81108-TV axial Cylindrical roller bearing
FESTO 363664, LFP-D-MAXI-40M, Filterpatrone
E-T-A ESX10-TD-101-DC24V-0,5/1/2A
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ELECTRIC 088921, ZB4 BG2
e2S L101, Warning Signal red
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CROUZET 84 892 290 , berwachungsrelais
TELEMECANIQUE 014426, XVB C2B3
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Fujikin Rckschlagventil / line check valve C.100501 68.6 kPa 16.2 MPa
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RITTAL SK3110.000 /SK3110000, temperature regulator
INA 81108-TV axial Cylindrical roller bearing
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PHOENIX CONTACT 3004100, UK 5-HESI
61.005.0025.8K6B, Sprhrohr KPL/PVC
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5092170, Thermoelement 0 - 100C
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61.005.0025.8K6B, spray pipe
ARO 127122-300, regulator
Zahnrad Zwischentrieb NZ, A004-169-55 gear wheel (1PU=10Pcs)
Festo, CPE10-PRS-1/4-6, 543825, Anschlussblock
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