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输出电路要把输出锁存器的信息传送给输出点。输出锁存器与输出点也是一一对应的

这里的输入暂存器及输出锁存器实际就是PLC处理器I/O口的寄存器。它们与计算机内存交换信息通过计算机总线，并主要由运行系统程序实现。把输人暂存器的信息读到PLC的内存中，称输入刷新。PLC内存有专门开辟的存放输入信息的映射区。这个区的每一对应位（bit）称之为输入继电器，或称软接点。这些位置成1，表示接点通，置成0为接点断。由于它的状态是由输入刷新得到的，所以，它反映的就是输入状态。

输出锁存器与PLC内存中的输出映射区也是对应的。一个输出锁存器也有一个内存位（bit）与其对应，这个位称为输出继电器，或称输出线圈。靠运行系统程序，输出继电器的状态映射到输出锁存器。这个映射也称输出刷新。输出刷新主要也是靠运行系统程序实现的。这样，用户所要编的程序只是，内存中输入映射区到输出映射区的变换，特别是怎么按输入的时序变换成输出的时序。这是一个数据及逻辑处理问题。由于PLC有强大的指令系统，编写出满足这个要求的程序是完全可能的，而且也是较为容易的。

ALLEN BRADLEY 1394-SR9AF NSPP 1394SR9AF

ALLEN BRADLEY 800T-A4 NSFP 800TA4

ALLEN BRADLEY 800T-N62W NSFP 800TN62W

ALLEN BRADLEY 800F-PD0CX11 NSFP 800FPD0CX11

ALLEN BRADLEY 800MS-P16B USPP 800MSP16B

ALLEN BRADLEY 800T-B3P NSFP 800TB3P

ALLEN BRADLEY 800FM-MP44 USPP 800FMMP44

ALLEN BRADLEY 800T-A5 NSFP 800TA5

ALLEN BRADLEY 800FM-MP44 NSFP 800FMMP44

ALLEN BRADLEY 126784 USPP 126784

ALLEN BRADLEY 800FM-L***24 NSFP 800FML***24

ALLEN BRADLEY 1336-CAP-SP15A NSFP 1336CAPSP15A

PHOTOSWITCH 42***P-7020 NSFP 42***P7020

ALLEN BRADLEY 800T-FX NSFP 800TFX

ALLEN BRADLEY 800T-J2H NSFP 800TJ2H

ALLEN BRADLEY 800FM-L***23 NSFP 800FML***23

ALLEN BRADLEY 1492-SP1C150 NSPP 1492SP1C150

PHOTOSWITCH 42***P-7020 USPP 42***P7020

ALLEN BRADLEY 800T-N319R NSPP 800TN319R

ALLEN BRADLEY 800FM-LMM44 NSFP 800FMLMM44

ALLEN BRADLEY 800T-N319R NSFP 800TN319R

ALLEN BRADLEY 800EP-KM32 USPP 800EPKM32

ALLEN BRADLEY 800FM-LMM43 NSFP 800FMLMM43

ALLEN BRADLEY 800T-N319A NSFP 800TN319A

ALLEN BRADLEY 1791-0A32 NSPP 17910A32

ALLEN BRADLEY 800FM-F3MX10 NSFP 800FMF3MX10

ALLEN BRADLEY 1770-XR NSPP 1770XR

ALLEN BRADLEY 800T-A4A NSFP 800TA4A

ALLEN BRADLEY 800FM-F2 NSFP 800FMF2

ALLEN BRADLEY 800ES-MT4 NSPP 800E***T4

ALLEN BRADLEY 800ES-M4 NSFP 800E***4

ALLEN BRADLEY 800EP-KM32 NSFP 800EPKM32

ALLEN BRADLEY 503183 NSFP 503183

ALLEN BRADLEY 800ES-LMP243DL2?X11 NSFP 800ESLMP243DL2X?1

ALLEN BRADLEY 600-TOX109 NSFP 600TOX109

ALLEN BRADLEY 800ES-LMP24 NSFP 800ESLMP24

PHOTOSWITCH 42K-BU2LNS-NA5 NSPP 42KBU2LNSNA5

ALLEN BRADLEY 800ES-LF7 NSPP 800ESLF7

ALLEN BRADLEY 800ES-LF5 NSFP 800ESLF5

ALLEN BRADLEY 1336-BDB-SP72D USPP 1336BDBSP72D

PHOTOSWITCH 61-5550-1 NSFP 6155501

ALLEN BRADLEY 700-RT10R110A1 USPP 700RT10R110A1

PHOTOSWITCH 61-5550 NSPP 615550

ALLEN BRADLEY D61935 USPP D61935

ALLEN BRADLEY 3500-P10 USPP 3500P10

PHOTOSWITCH 42BA-S2LPAE-A2 NSFP 42BAS2LPAEA2

PHOTOSWITCH 872C-D8CP18-E2 NSFP 872CD8CP18E2

ALLEN BRADLEY SP-502979 NSPP SP502979

ALLEN BRADLEY 1336F-BRF200-AE?-EN USPP 1336FBRF200AEEN

ALLEN BRADLEY 1492-WSL3 USPP 1492WSL3

ALLEN BRADLEY 1756-L63 NSFP 1756L63

ALLEN BRADLEY 700-HLT1U12 NSPP 700HLT1U12

ALLEN BRADLEY SP-140574 NSFP SP140574

ALLEN BRADLEY W49 NSPP W49

ALLEN BRADLEY W69 NSPP W69

ALLEN BRADLEY 802T-W1 NSFP 802TW1

ALLEN BRADLEY 40274-001-01 NSPP 4027400101

ALLEN BRADLEY 800H-W131 NSFP 800HW131

ALLEN BRADLEY W55 NSFP W55

ALLEN BRADLEY X-108857 NSFP X108857

ALLEN BRADLEY N44 NSPP N44

ALLEN BRADLEY 800MS-CA1 NSFP 800MSCA1

ALLEN BRADLEY 800H-NR103 NSFP 800HNR103

ALLEN BRADLEY 800T-QH24W USPP 800TQH24W

ALLEN BRADLEY 800H-PR26 USPP 800HPR26

ALLEN BRADLEY 800H-PR26R USPP 800HPR26R

ALLEN BRADLEY 800T-QTL10R NSFP 800TQTL10R

ALLEN BRADLEY 20AD027F0AYNANC?0 USPP 20AD027F0AYNANC?0

ALLEN BRADLEY 194EDA16E FNFP 194EDA16E

ALLEN BRADLEY 800T-Q10R USPP 800TQ10R

ALLEN BRADLEY 800T-JX2K3A USPP 800TJX2K3A

ALLEN BRADLEY 700-HT2 NSFP 700HT2

ALLEN BRADLEY 800H-PR16R NSFP 800HPR16R

ALLEN BRADLEY 800H-PR26R NSFP 800HPR26R

ALLEN BRADLEY 836T-T252J USPP 836TT252J

ALLEN BRADLEY 1492-H1 FNFP 1492H1

ALLEN BRADLEY 1794-IR8 NSFP 1794IR8

ALLEN BRADLEY 140M-C-WT NSPP 140MCWT

ALLEN BRADLEY 800H-2HA4R NSFP 800H2HA4R

ALLEN BRADLEY 700-HA32A2 NSPP 700HA32A2

ALLEN BRADLEY 1606-XLP15A NSFP 1606XLP15A

ALLEN BRADLEY 73-A11 NSPP 73A11

PHOTOSWITCH 43GR-TBS25SL NSFP 43GRTBS25SL

ALLEN BRADLEY 1495-N8 NSFP 1495N8

ALLEN BRADLEY 2711-K3A5L1 USPP 2711K3A5L1

ALLEN BRADLEY 1756-ENBT NSFP 1756ENBT

ALLEN BRADLEY 140-L452 USPP 140L452

ALLEN BRADLEY 2711-B5A5 USPP 2711B5A5

ALLEN BRADLEY 800T-A6 NSFP 800TA6

ALLEN BRADLEY 28A1131 NSPP 28A1131

ALLEN BRADLEY 1606-XLP25A NSPP 1606XLP25A

ALLEN BRADLEY 800H-W110 NSFP 800HW110

ALLEN BRADLEY 889D-F8AB-30 NSFP 889DF8AB30

GUARDMASTER LTD 440R-W23219 USPP 440RW23219

ALLEN BRADLEY 800E-3X10V NSPP 800E3X10V

ALLEN BRADLEY 20BB015A3AYNBND?0 NSFP 20BB015A3AYNBND?0

ALLEN BRADLEY 1410-FOB54 NSPP 1410FOB54

ALLEN BRADLEY 140-N31 NSFP 140N31

ALLEN BRADLEY 700-HAX3Z24 NSFP 700HAX3Z24

ALLEN BRADLEY 809-A13E USPP 809A13E

ALLEN BRADLEY 802T-W30N USPP 802TW30N

ALLEN BRADLEY 1201-HASP USPP 1201HASP

ALLEN BRADLEY 20-COMM-P USPP 20COMMP

ALLEN BRADLEY 2098-DSD-HV030X?-DN USPP 2098DSDHV030XDN

ALLEN BRADLEY 1326AB-B730E-M2?L USPP 1326ABB730EM2L

ALLEN BRADLEY MPL-B330P-MJ74A?A USPP MPLB330PMJ74AA

ALLEN BRADLEY MPL-B330P-HJ22A?A USPP MPLB330PHJ22AA

ALLEN BRADLEY 194706-Q06 USPP 194706Q06