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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。

PHOTOSWITCH 889R-F3AEA-10 USPP 889RF3AEA10

ALLEN BRADLEY 1398-PDM-150 USPP 1398PDM150

ALLEN BRADLEY 194E-E40-1753 USPP 194EE401753

ALLEN BRADLEY 836-A2A NSFP 836A2A

ALLEN BRADLEY 1492-PLT-KIT USPP 1492PLTKIT

ALLEN BRADLEY 1771-NB4S USPP 1771NB4S

ALLEN BRADLEY 1756-EWEB NSFP 1756EWEB

ALLEN BRADLEY 1745-C1 NSFP 1745C1

ALLEN BRADLEY 195-MA22-EACH USPP 195MA22EACH

ALLEN BRADLEY 195-MA22-EACH NSPP 195MA22EACH

ALLEN BRADLEY 1492-CJK5-10 USPP 1492CJK510

ALLEN BRADLEY 20-HIM-A2 USPP 20HIMA2

ALLEN BRADLEY 700-SKON2Z25 NSFP 700SKON2Z25

ALLEN BRADLEY SP-151160 USPP SP151160

ALLEN BRADLEY SP-151160 NSPP SP151160

ALLEN BRADLEY 20AD022A3AYNANC?0 NSPP 20AD022A3AYNANC?0

ALLEN BRADLEY SP-142734 NSPP SP142734

ALLEN BRADLEY 513-BDB-1-4R-6P?-35 USPP 513BDB14R6P35

ALLEN BRADLEY 800E-PPM4 USPP 800EPPM4

ALLEN BRADLEY 513-BJB-6-41 USPP 513BJB641

ALLEN BRADLEY 800E-PPM3 USPP 800EPPM3

ALLEN BRADLEY 700-B300A4 USPP 700B300A4

ALLEN BRADLEY 800T-FXMP16 USPP 800TFXMP16

ALLEN BRADLEY 800H-WK61B USPP 800HWK61B

ALLEN BRADLEY 800T-FXJP16RA1 USPP 800TFXJP16RA1

ALLEN BRADLEY 800H-JR2KC1 USPP 800HJR2KC1

ALLEN BRADLEY 800T-D6D2 NSPP 800TD6D2

ALLEN BRADLEY 800T-A6B USPP 800TA6B

ALLEN BRADLEY 800H-AR2B USPP 800HAR2B

ALLEN BRADLEY 800H-WK61A USPP 800HWK61A

ALLEN BRADLEY 800H-3HD4 USPP 800H3HD4

ALLEN BRADLEY 800H-WK61 NSPP 800HWK61

ALLEN BRADLEY 700-P310A1 USPP 700P310A1

ALLEN BRADLEY 800T-FXQ10XD4 USPP 800TFXQ10XD4

ALLEN BRADLEY 800H-WK4A USPP 800HWK4A

ALLEN BRADLEY 500L-BOF92 USPP 500LBOF92

ALLEN BRADLEY 800T-X59E-REVER?SE NSPP 800TX59EREVERSE

PHOTOSWITCH 889R-R3AEA-10 NSPP 889RR3AEA10

ALLEN BRADLEY 800T-X59E-HAND-?OFF-AUTO NSPP 800TX59EHAND...

ALLEN BRADLEY 800T-H3303 USPP 800TH3303

ALLEN BRADLEY 800T-X559E-OPEN?-CHUCKS NSPP 800TX559EOPEN..?.

ALLEN BRADLEY 800T-H3104B NSPP 800TH3104B

PHOTOSWITCH 871TM-DH8NP18-N?4 NSPP 871TMDH8NP18N4

ALLEN BRADLEY 800T-X559E-AUTO?MATIC NSPP 800TX559EAUTOMA?...

PHOTOSWITCH 871TM-DH5CP18-N?4 USPP 871TMDH5CP18N4

PHOTOSWITCH 871TM-DF3NP18-N?4 NSPP 871TMDF3NP18N4

ALLEN BRADLEY 800T-FXNP16XA7 USPP 800TFXNP16XA7

ALLEN BRADLEY 800T-QS24 USPP 800TQS24

ALLEN BRADLEY 85A81 USPP 85A81

ALLEN BRADLEY 800T-QM10R USPP 800TQM10R

ALLEN BRADLEY 800T-FXMQL10RA7 NSFP 800TFXMQL10RA7

ALLEN BRADLEY 855TS-B10D3D5D4 NSFP 855TSB10D3D5D4

ALLEN BRADLEY 855T-B24TL5 NSFP 855TB24TL5

ALLEN BRADLEY 800T-QBL10G USPP 800TQBL10G

ALLEN BRADLEY 855T-B24TL3 NSPP 855TB24TL3

ALLEN BRADLEY 800T-PF16R NSPP 800TPF16R

ALLEN BRADLEY 800T-FXA1 USPP 800TFXA1

ALLEN BRADLEY 855T-B24GL4 NSFP 855TB24GL4

ALLEN BRADLEY 800T-P***16 USPP 800TP***16

ALLEN BRADLEY 810-A08C USPP 810A08C

ALLEN BRADLEY 800T-FX7 USPP 800TFX7

ALLEN BRADLEY 809-A21E USPP 809A21E

ALLEN BRADLEY 800T-N298R USPP 800TN298R

ALLEN BRADLEY 802X-WS4 USPP 802XWS4

ALLEN BRADLEY X-107419 NSPP X107419

ALLEN BRADLEY 800T-N231F NSPP 800TN231F

ALLEN BRADLEY 800T-N179 USPP 800TN179

ALLEN BRADLEY 800T-D4LB USPP 800TD4LB

ALLEN BRADLEY SP-155980 NSPP SP155980

ALLEN BRADLEY 802X-A4 NSFP 802XA4

ALLEN BRADLEY 800TD1N NSPP 800TD1N

ALLEN BRADLEY S91854 NSPP S91854

ALLEN BRADLEY 800TC-B6A USPP 800TCB6A

ALLEN BRADLEY PNL120 USPP PNL120

ALLEN BRADLEY 800T-N156 NSPP 800TN156

ALLEN BRADLEY 800S-2AS NSPP 800S2AS

ALLEN BRADLEY JAIN056S254UA NSFP JAIN056S254UA

ALLEN BRADLEY 802T-AS7 USPP 802TAS7

ALLEN BRADLEY 800MS-PB16RA20 USPP 800MSPB16RA20

ALLEN BRADLEY 800T-J2KE7 NSPP 800TJ2KE7

ALLEN BRADLEY 800MS-JX9B USPP 800MSJX9B

ALLEN BRADLEY 802R-HF USPP 802RHF

ALLEN BRADLEY 800T-J20KC1A USPP 800TJ20KC1A

ALLEN BRADLEY 800MSCB6B USPP 800MSCB6B
ALLEN BRADLEY 40011-111-01 NSPP 4001111101

ALLEN BRADLEY 800M-XA2 NSPP 800MXA2

ALLEN BRADLEY 2090-SCEP1-0 NSPP 2090SCEP10

ALLEN BRADLEY 800ES-LMP23 NSPP 800ESLMP23

ALLEN BRADLEY 1492-CABLE025E USPP 1492CABLE025E

ALLEN BRADLEY 800T-FXNQH24GA7 NSFP 800TFXNQH24GA7

PHOTOSWITCH 42MTB-5004 NSPP 42MT***04

ALLEN BRADLEY TA-714 USPP TA714

PHOTOSWITCH 871TM-DH2NP12-D?4 NSPP 871TMDH2NP12D4

ALLEN BRADLEY 836-A2A NSPP 836A2A

ALLEN BRADLEY 800EP-LF7 USPP 800EPLF7

ALLEN BRADLEY 800MR-JX2B NSPP 800MRJX2B

ALLEN BRADLEY 140-MN-1600 USPP 140MN1600

ALLEN BRADLEY 140-MN-2000 USPP 140MN2000

ALLEN BRADLEY 800A-L2GC USPP 800AL2GC

ALLEN BRADLEY 855T-B24GL5 USPP 855TB24GL5

PHOTOSWITCH 871T-G8K18 USPP 871TG8K18

ALLEN BRADLEY 1394-CCFK NSFP 1394CCFK

ALLEN BRADLEY 190-P016R NSFP 190P016R

ALLEN BRADLEY 140M-C-W544 NSFP 140MCW544

ALLEN BRADLEY 700-PH400A1 NSFP 700PH400A1

ALLEN BRADLEY 1761-L32AAA NSFP 1761L32AAA

ALLEN BRADLEY 800T-N62W FNFP 800TN62W

PHOTOSWITCH 871TM-B2N12-N3 NSFP 871TMB2N12N3

ALLEN BRADLEY 800H-QR24B NSFP 800HQR24B

ALLEN BRADLEY 1747-L541 NSFP 1747L541

ALLEN BRADLEY 193-EA1FB USPP 193EA1FB

ALLEN BRADLEY 1792D-CB12JP USPP 1792DCB12JP

ALLEN BRADLEY 32-A11 NSPP 32A11

ALLEN BRADLEY 800MR-A6D2 NSFP 800MRA6D2

ALLEN BRADLEY 700-PKLL11A1 USPP 700PKLL11A1

ALLEN BRADLEY 1336-L6E USPP 1336L6E

ALLEN BRADLEY 2094-AM01-S USPP 2094AM01S

ALLEN BRADLEY 808-M2 USPP 808M2

ALLEN BRADLEY 1746-OB8 NSPP 1746OB8

ALLEN BRADLEY 113497-7 USPP 1134977

ALLEN BRADLEY W51 NSPP W51

ALLEN BRADLEY 800T-T2SB41 USPP 800TT2SB41

ALLEN BRADLEY 2755-NM42 NSPP 2755NM42

GUARDMASTER LTD 440K-E33029 NSFP 440KE33029

ALLEN BRADLEY 100-C16D10 USPP 100C16D10

ALLEN BRADLEY 800E-34AE212 NSFP 800E34AE212

ALLEN BRADLEY 800E-N157G NSPP 800EN157G

ALLEN BRADLEY 800E-34RE112 NSFP 800E34RE112

ALLEN BRADLEY 800E-11RE100 NSPP 800E11RE100

ALLEN BRADLEY 1326-CPB1-RB-03?0 NSFP 1326CPB1RB030

ALLEN BRADLEY 802T-BP NSPP 802TBP

ALLEN BRADLEY 1394-SR36AF NSFP 1394SR36AF

ALLEN BRADLEY 800HL-PP16G NSFP 800HLPP16G

ALLEN BRADLEY 700-N400AN USPP 700N400AN

ALLEN BRADLEY 1388-B***20-A06 USPP 1388B***20A06

ALLEN BRADLEY 193-ES1BB NSPP 193ES1BB

ALLEN BRADLEY 100-C12J10 NSPP 100C12J10

ALLEN BRADLEY X-395316 USPP X395316

ALLEN BRADLEY 40120-582-02 USPP 4012058202

ALLEN BRADLEY X-394027 USPP X394027

ALLEN BRADLEY 709-GOC-103 USPP 709GOC103

ALLEN BRADLEY 709-DAC USPP 709DAC

ALLEN BRADLEY 1492-F1 NSPP 14***1

GUARDMASTER LTD 440T-MSRUE110A NSFP 440TMSRUE110A

ALLEN BRADLEY 1492-***N83 NSFP 1492***N83

ALLEN BRADLEY 1492-M5X5 NSFP 1492M5X5

PHOTOSWITCH 871TM-DH5NP18-H?2 NSFP 871TMDH5NP18H2

ALLEN BRADLEY 4100-CCS15F NSFP 4100CCS15F

PHOTOSWITCH 871TM-DF1NP12-D?4 NSFP 871TMDF1NP12D4

PHOTOSWITCH 42MTB-5000 NSFP 42MT***00

PHOTOSWITCH 43GT-TBB25SL NSFP 43GTTBB25SL

ALLEN BRADLEY 800E-2DL5X10 NSFP 800E2DL5X10

PHOTOSWITCH 42***P-7020-QD NSPP 42***P7020QD

ALLEN BRADLEY 800FP-LE0PD5CX1?1 NSFP 800FPLE0PD5CX11

PHOTOSWITCH 871TM-B5N18-A2 NSFP 871TMB5N18A2

ALLEN BRADLEY 800FP-X20 NSFP 800FPX20

ALLEN BRADLEY 800T-N305R NSFP 800TN305R

ALLEN BRADLEY N50 NSPP N50

PHOTOSWITCH 99-801 USPP 99801

ALLEN BRADLEY 700-M220A1S NSFP 700M220A1S

ALLEN BRADLEY 800FP-LF7 NSFP 800FPLF7

PHOTOSWITCH 889D-F4EC-2 NSPP 889DF4EC2

ALLEN BRADLEY 1410-EO1 USPP 1410EO1

ALLEN BRADLEY 800EM-LM4 NSFP 800EMLM4

PHOTOSWITCH 42KB-S2LPSA-A5 NSFP 42KBS2LPSAA5

ALLEN BRADLEY 1492-CB-1-G-040 NSPP 1492CB1G040

ALLEN BRADLEY 802B-PSARBSX NSFP 802BPSARBSX

PHOTOSWITCH 8-594 NSFP 8594

ALLEN BRADLEY 800EM-E4 NSPP 800EME4

ALLEN BRADLEY 800T-N25 NSFP 800TN25

ALLEN BRADLEY 43PR-NDS57ZS NSFP 43PRNDS57ZS

ALLEN BRADLEY 800EQ-***26 NSFP 800EQ***26

ALLEN BRADLEY 800ES-KM23 NSFP 800ESKM23

ALLEN BRADLEY 800T-N13 USPP 800TN13

ALLEN BRADLEY 800T-D6 NSFP 800TD6

ALLEN BRADLEY 800T-J2KE7 NSFP 800TJ2KE7

ALLEN BRADLEY CD-013 NSFP CD013

ALLEN BRADLEY 190-P016 NSFP 190P016

ALLEN BRADLEY 800T-A4 NSPP 800TA4

ALLEN BRADLEY 800T-N62W USPP 800TN62W

ALLEN BRADLEY 800T-16JX91KB7 USPP 800T16JX91KB7

ALLEN BRADLEY 800F-Q5G NSFP 800FQ5G

ALLEN BRADLEY 802B-PSABXSX NSFP 802BPSABXSX

ALLEN BRADLEY 2705-P21J2 USPP 2705P21J2

ALLEN BRADLEY 1410-FOB54 USPP 1410FOB54