1747-L514 1747-L514 A-B 好價(jià)格

1747-L514 1747-L514 A-B 好價(jià)格

3．輸入/輸出接口 
（1）輸入接口： 
光電耦合器由兩個(gè)發(fā)光二極度管和光電三極管組成。 
發(fā)光二級(jí)管：在光電耦合器的輸入端加上變化的電信號(hào)，發(fā)光二極管就產(chǎn)生與輸入信號(hào)變化規(guī)律相同的光信號(hào)。 
光電三級(jí)管：在光信號(hào)的照射下導(dǎo)通，導(dǎo)通程度與光信號(hào)的強(qiáng)弱有關(guān)。在光電耦合器的線性工作區(qū)內(nèi)，輸出信號(hào)與輸入信號(hào)有線性關(guān)系。 
輸入接口電路工作過(guò)程：當(dāng)開(kāi)關(guān)合上，二極管發(fā)光，然后三極管在光的照射下導(dǎo)通，向內(nèi)部電路輸入信號(hào)。當(dāng)開(kāi)關(guān)斷開(kāi)，二極管不發(fā)光，三極管不導(dǎo)通。向內(nèi)部電路輸入信號(hào)。也就是通過(guò)輸入接口電路把外部的開(kāi)關(guān)信號(hào)轉(zhuǎn)化成PLC內(nèi)部所能接受的數(shù)字信號(hào)。 
（2）輸出接口 
PLC的繼電器輸出接口電路 
工作過(guò)程：當(dāng)內(nèi)部電路輸出數(shù)字信號(hào)1，有電流流過(guò)，繼電器線圈有電流，然后常開(kāi)觸點(diǎn)閉合，提供負(fù)載導(dǎo)通的電流和電壓。當(dāng)內(nèi)部電路輸出數(shù)字信號(hào)0，則沒(méi)有電流流過(guò)，繼電器線圈沒(méi)有電流，然后常開(kāi)觸點(diǎn)斷開(kāi)，斷開(kāi)負(fù)載的電流或電壓。也就是通過(guò)輸出接口電路把內(nèi)部的數(shù)字電路化成一種信號(hào)使負(fù)載動(dòng)作或不動(dòng)作。 
三種類型： 
繼電器輸出：有觸點(diǎn)、壽命短、頻率低、交直流負(fù)載 
晶體管輸出：無(wú)觸點(diǎn)、壽命長(zhǎng)、直流負(fù)載 
晶閘管輸出：無(wú)觸點(diǎn)、壽命長(zhǎng)、交流負(fù)載 

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AMCI NX2C4C Resolver Interface Module 4 Channel NIOB SAR

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I/A Series III

FOXBORO DNBI P0970BC 興銳嘉好價(jià)格*
FOXBORO DNBT P0971WV 興銳嘉好價(jià)格*
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FOXBORO FBM14 P0400YQ 興銳嘉好價(jià)格*
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I/A Series IIII

FOXBORO FCM10E P0914YM 
FOXBORO FCM10EF P0916CP 
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FOXBORO FBM201b P0922YH  
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FOXBORO FBM208 P0914TB 
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FOXBORO FBM212 P0914XL 
FOXBORO FBM213 P0914XN 
FOXBORO FBM214 P0914XQ 
FOXBORO FBM215 P0922VU 
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GE VMIVME-7750

MOTOROLA MPC750
MOTOROLA MVME162-512
MOTOROLA MVME188A
MOTOROLA MVME117A
MOTOROLA MVME147-013
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MOTOROLA MVME162-023A
MOTOROLA MVME162-032
MOTOROLA MVME162-10
MOTOROLA MVME162-13
MOTOROLA MVME162-210
MOTOROLA MVME162-212
MOTOROLA MVME162-220
MOTOROLA MVME162-512A
MOTOROLA MVME162-522A
MOTOROLA MVME162-522A 01-W3960B/61C
MOTOROLA MVME162PA
MOTOROLA MVME162PA-344
MOTOROLA MVME167-33B
MOTOROLA MVME172-263/260
MOTOROLA MVME2301-900
MOTOROLA MVME2604 712I/O
MOTOROLA MVME300
MOTOROLA MVME5100
MOTOROLA MVME5500
MOTOROLA MVME712M
MOTOROLA VME162PA344SE
MOTOROLA XVME-674
MOTOROLA XVME-957

XYCOM Proto XVME-085
XYCOM XVME-530
XYCOM XVME-653
XYCOM XVME-976
XANTREX XFR20-130

PHOENIX FLMC10BASE-T/FO G850
PHOENIX IBS 24BK-I/O-T
PHOENIX IBS PCISC/I-T
PHOENIX ILBBTADIO MUX-OMNI
PHOENIX MINI-PS-12-24DC/24DC/1
PHOENIX QUINT PS-100-240AC/24DC/10

PROFACE 3180053-4
PILLAR INDUSTRIES EVR116
POWER-ONE MAP55-1024
Prosoft MVI56E-MCMR
PROSOFT MVI56-GSC
PILZ P1U-1NB
PACIFIC SCIENTIFIC PC832-001-N
PACIFIC SCIENTIFIC PC832-001-T
PACIFIC SCIENTIFIC T60-1001-C8-1A
PIONEER MAGNETICS PM3328B-6-1-3-E
PHILIPS PR1613
POLYSPEDE PRD2-200
POLYSPEDE PRD2-200 M21156-100-PN
PILZ PZE3
PROCESS TCPCU-1
PARKER XPR10VT-4P3
CUTLER HAMMER 1755T-PMPP-1700
CYONICS 2114B-30SLT
CANON 8100-P-R
CUTLER HAMMER 87-01368-01
CTC AMM-4000-1
CTC ATM-4505-0
CISCO ASSY#68-0208-03B0/73-1669-06B0
CANON DDR2-1A
CASH E-55
Cutler-Hammer HLDB3600FT33W
COMPLEE IEC-51
CURRENTCLIL MFO-40CT
COOPER P3798102-00010 CN-UIM2
CHITA TCI-9300DE

B&R ECA162-01
B&R ECCP60-01
B&R ECCP70-01
B&R ECE161-0
B&R ECE243-0
B&R ECEP128-0
B&R ECNT43-0
B&R ECPA81-2
B&R ECPE82-2
B&R ECPNC3-0
B&R ECPNC3-1 11150168481
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B&R ECPP60-01
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B&R MDA115-0
B&R PS740 2PS740.9
B&R IPC5000/5600/5000C/5600C
BERGER LAHR RDM545/100LHA
BERGER LAHR WPM311.03401
BUSSMANN 25NH00 G-690
BUSSMANN 50NH00 G-690
BUSSMANN FWC-32A10F 
BERGHOF CDIO 16/16-0,5
BEI H25E-F1-SS-10
BEI H38D-1800-ABZC-8830-LED-SC-UL