描述

對(duì)于PLC的開(kāi)關(guān)量輸入回路。我個(gè)人感覺(jué)日本三菱的要好得多，甚至比西門子等赫赫大名的PLC都要實(shí)用和可靠！其主要原因是三菱等日本PLC從歐美那兒學(xué)來(lái)技術(shù)并優(yōu)化設(shè)計(jì)，作到：

采用漏輸入，輸入端本來(lái)就設(shè)計(jì)為對(duì)地短路就引發(fā)開(kāi)入有效！年限制電流大小。不會(huì)對(duì)電源系統(tǒng)構(gòu)成危害，最多只影響自己的回路。也不會(huì)由于電源故障影響其他輸入回路的正常工作！

而很多歐美PLC采用源輸入方式，有一定弊端（當(dāng)然有的PLC可選擇源、漏輸入?。?/p>

采用源輸入，是共電源輸入端。在工程實(shí)際應(yīng)用中往往有太多的電纜，你可能無(wú)法保證電纜的相互接觸、破損，說(shuō)不定共電源的開(kāi)關(guān)量線路會(huì)無(wú)意接觸到設(shè)備地、外殼、其他地電位。因此可能斷路電源供應(yīng)回路。造成電源損壞或者燒掉保險(xiǎn)，從而可能影響其他輸入回路的正常工作。除非，每個(gè)輸入回路加保險(xiǎn)……應(yīng)用成本較高也容易出現(xiàn)其他故障！

歐美品牌停產(chǎn)的，常用的“PLC”備品備件

我司產(chǎn)品應(yīng)用于以下領(lǐng)域：

1,《發(fā)電廠DCS監(jiān)控系統(tǒng)》

2,《智能平鋼化爐系統(tǒng)制造》

3,《PLC可編程輸送控制系統(tǒng)》

4,《DCS集散控制系統(tǒng)》
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5,《智能型消防供水控制系統(tǒng)》

6,《化工廠藥液恒流量計(jì)算機(jī)控制系統(tǒng)》

7,《電氣控制系統(tǒng)》造紙,印染生產(chǎn)線,變電站綜合自動(dòng)化控制系列

本特利，英維思，伍德沃德，?？怂共_、西屋、瑞恩、施耐德莫迪康、ABB、AB、西門子、摩托羅拉、GE發(fā)那科、安川、博世力士樂(lè)，ACSO，力士樂(lè)等各大品牌的DCS系統(tǒng)配件，機(jī)器人系統(tǒng)配件，大型伺服系統(tǒng)備件。

L75905 Applied Bio.Pioneer Cont.Flow Peptide Synth.

G75505 Rorze Robot RR721L202H-H30-?ICA-3&CURR-2292-1

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C51192 Tektronix DTG 5274 Data Timing Generator 2.7Gb/s

C51191 Tektronix DTG 5274 Data Timing Generator 2.7Gb/s

C70445 MEI Marpet Mech-El 779 Manual Epoxy Die Bonder

C70443 Mech-El 703 Manual Eutectic Die Attach Bonder

K69277 Quad/de Haart MPC-20 Screen Printer Untested

C60415 Unitek Micropull IV Wire Bond Pull Tester 1000g

C61654 Unitek Micropull IV Wire Bond Pull Tester RS232

C59001 Unitek Micropull IV Wire Bond Pull Tester

C72803(2)Christie Electrohome Roadie S12 Projectors

AE43755 RECIF SA Wafer Scribe Reader IDLW8 System

C69112 Spectra Multi-Quad LMI Gas Analyzer w/Turbo Vac

A41046 ADE Technologies DiskMapper Model M2 System

A74032 US Motors Titan Vertical Motor 250 HP,Emerson

L75703 GE Column Screening Kit*NIB*11-0035-95

L75704 GE P-960 Sample Pump*NIB*18-6727-00

C75918 Cosam BCU-T932RSR 3-Channel Chiller-10°C~+90°C

A66346 Piller Apostar AS50 UPS System 50 kVA,480V 85A

A73256 Applied Materials 0010-40099 RF Generator 10kV

A75233 Wentworth Labs 6”Prober w/Unitron ZSB Scope

A73776 Gyros Gyrolab xP Workstation

A73488 Douglas Instruments Oryx 6 w/XYZV Plateholder

C69602 Logitech 2125 Polishing/Bonding Jig

A58951 K&S 6491 Semi-Automatic Die Bonder

C54973 Agilent 16950A 600MHz State/4GHz Timing/4Meg Mem

C54587 Agilent 16950A 600MHz State/4GHz Timing 4Meg Mem

A73483 US Motors Titan Vertical Motor 250 HP,Emerson

A73480 Thermo Jarrell Ash Iris 1000 Spectrometer System

C51193 Agilent E4406A Transmitter Tester w/202 300 BAF

C52517 Agilent E4406A Transmitter Tester w/202 300 BAH

C72658 FST Fine Semitech Dual Recirculating Chiller

C59032 Signatone S-1007S 5″Wafer Prober Probe Station

C72660 FST Fine Semitech Dual Recirculating Chiller

C72659 FST Fine Semitech Dual Recirculating Chiller

A74819 K&S 1470 Automatic Wedge Bonder

A74820 K&S 1470 Automatic Wedge Bonder

C75091 Eppendorf 5804 R Refrigerated Centrifige 5804R

C51195 HP E4406A VSA Transmitter Tester w/BAH,204,UK6

C51194 Agilent E4406A Transmitter Tester w/Opt 202 BAH

G75520 Nikon Diaphot 200 Microscope w/Nikon Optics

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A71514 Leitz Wetzlar Trinocular Microscope w/Stage

C51174 HP E4406A Transmitter Tester 7MHz-4GHz w/Opt BAH

C75758 Nikon Labophot-2 Trinocular Teaching Microscope

L67921 Hughes Wire Bonder System WD-8700D1

A63423 Bemco Inc.FC-77 Cart Environmental Pump System

C58955 Signatone S-250-5 Wafer Prober w/B&L Microzoom

A58956 3S 8013 Pick&Place Inspection Wafer Station

A74033(2)Coherent Laserpure 20 Heat Exchanger

C73122 Isel Wafer Handling Robot w/built-in Controller

K73702 Spectra-Physics T20-8S40 Diode Laser System

G75111 Nikon Diaphot Microscope w/Lenses&Eyepieces

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C66608 Dage TP1KG Tweezer Load Cell 1kg for 2400PC

A75225 Labconco Delta Series Class II Biosafety Hood

A73918 New Brunswick Innova CO-170 CO2 Incubator

A73919 HP Series 1050 Autosampler,G1303A,79853C

C70150 Dage DC2 TurboSonic PCB Board Washing Station

A72127 Waters 600 Multisolvent Delivery System HPLC

A72125 Waters 4000 Pump System Controller HPLC

A72126 Coherent Innova 90 Argon Ion Laser System

C74126 Laserscope KTP/532 Nd:YAG Surgical Laser System

C73470 Spectra-Physics T20-8S40 Diode Laser System

C65584 Perkin Elmer 1002700 Vacuum Ion Pump System

C51594 Agilent 16950A 600MHz State/4GHz Timing/1Meg Mem

A73479 Blue M Oven CR07-1406F-2,204°C/400°F

C61589 Varian G-292 Rotating Anode X-Ray Tube in B-130H

C73507 Cartesian HONEYBEE Protein Crystallization Syste

C71355 Isel Wafer Handling Robot w/Built-In Controller

G75594 Sanyo CO2 Incubator MCO-18AIC(UV)

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C70346 Veeco Dektek SXM Atomic Force Microscope Control

G75595 Sanyo CO2 Incubator MCO-18AIC(UV)

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L75707 Nikon Optiphot-2 Microscope&Camera/Controll?er

L75708 Precision 200R Durafuge Refrigerated Centrifuge

G73928 HP G1330A ALS Therm Series 1100