福建中立恒自動(dòng)化設(shè)備有限公司

1．輸入/輸出單元

輸入/輸出單元通常也稱I/O單元或I/O模塊，是PLC與工業(yè)生產(chǎn)現(xiàn)場(chǎng)之間的連接部件。

PLC通過輸入接口可以檢測(cè)被控對(duì)象的各種數(shù)據(jù)，以這些數(shù)據(jù)作為PLC對(duì)被控制對(duì)象進(jìn)行控制的依據(jù)；同時(shí)PLC又通過輸出接口將處理結(jié)果送給被控制對(duì)象，以實(shí)現(xiàn)控制目的。

由于外部輸入設(shè)備和輸出設(shè)備所需的信號(hào)電平是多種多樣的，而PLC內(nèi)部CPU的處理的信息只能是標(biāo)準(zhǔn)電平，所以I/O接口要實(shí)現(xiàn)這種轉(zhuǎn)換。

I/O接口一般都具有光電隔離和濾波功能，以提高PLC的抗干擾能力。另外，I/O接口上通常還有狀態(tài)指示，工作狀況直觀，便于維護(hù)。

PLC提供了多種操作電平和驅(qū)動(dòng)能力的I/O接口，有各種各樣功能的I/O接口供用戶選用。I/O接口的主要類型有：數(shù)字量（開關(guān)量）輸入、數(shù)字量（開關(guān)量）輸出、模擬量輸入、模擬量輸出等。

常用的開關(guān)量輸入接口按其使用的電源不同有三種類型：直流輸入接口、交流輸入接口和交/直流輸入接口。

常用的開關(guān)量輸出接口按輸出開關(guān)器件不同有三種類型：是繼電器輸出、晶體管輸出和雙向晶閘管輸出。

繼電器輸出接口可驅(qū)動(dòng)交流或直流負(fù)載，但其響應(yīng)時(shí)間長(zhǎng)，動(dòng)作頻率低；而晶體管輸出和雙向晶閘管輸出接口的響應(yīng)速度快，動(dòng)作頻率高，但前者只能用于驅(qū)動(dòng)直流負(fù)載，后者只能用于交流負(fù)載。

PLC的I/O接口所能接受的輸入信號(hào)個(gè)數(shù)和輸出信號(hào)個(gè)數(shù)稱為PLC輸入/輸出（I/O）點(diǎn)數(shù)。I/O點(diǎn)數(shù)是選擇PLC的重要依據(jù)之一。當(dāng)系統(tǒng)的I/O點(diǎn)數(shù)不夠時(shí)，可通過PLC的I/O擴(kuò)展接口對(duì)系統(tǒng)進(jìn)行擴(kuò)展。

2．通信接口

PLC配有各種通信接口，這些通信接口一般都帶有通信處理器。

PLC通過這些通信接口可與監(jiān)視器、打印機(jī)、其它PLC、計(jì)算機(jī)等設(shè)備實(shí)現(xiàn)通信。

PLC與打印機(jī)連接，可將過程信息、系統(tǒng)參數(shù)等輸出打?。慌c監(jiān)視器連接，可將控制過程圖像顯示出來；與其它PLC連接，可組成多機(jī)系統(tǒng)或連成網(wǎng)絡(luò)，實(shí)現(xiàn)更大規(guī)?？刂啤?/p>

與計(jì)算機(jī)連接，可組成多級(jí)分布式控制系統(tǒng)，實(shí)現(xiàn)控制與管理相結(jié)合。遠(yuǎn)程I/O系統(tǒng)也必須配備相應(yīng)的通信接口模塊。

3．智能接口模塊

智能接口模塊是一獨(dú)立的計(jì)算機(jī)系統(tǒng)，它有自己的CPU、系統(tǒng)程序、存儲(chǔ)器以及與PLC系統(tǒng)總線相連的接口。

它作為PLC系統(tǒng)的一個(gè)模塊，通過總線與PLC相連，進(jìn)行數(shù)據(jù)交換，并在PLC的協(xié)調(diào)管理下獨(dú)立地進(jìn)行工作。

PLC的智能接口模塊種類很多，如：高速計(jì)數(shù)模塊、閉環(huán)控制模塊、運(yùn)動(dòng)控制模塊、中斷控制模塊等。

以下鏈接皆有貨

Endress + Hauser TC12-ABA1SGCE1000 TC12 TC Thermocouple with 12"Probe

Endress Hauser 33HP40-FCBFC51D21A Promag H Tri-Clamp FlowmeterTransmitter

Endress Hauser Cerabar M PMC51-31PN2/101 Profibus 71086208Pressure Transmitter

ENDRESS HAUSER FTL50H-RTC2AD4E7C TUNING FORK LI LI SWITCH

ENDRESS HAUSER LI II FTL365 LEVEL LIMITMEASURE

ENDRESS HAUSER P40 FCBFC51D21A PROMAG 33H TRANSMITTER

ENDRESS HAUSER P40 FCBFC51D21A PROMAG 33H TRANSMITTER W/33HP40-FCBFC51D21A

ENDRESS HAUSER PMC731-G41P1M1DL4 CERABAR PRESSURETRANSMITTER

Endress Hauser Promag 33FT32-AH1AA11A21A ElectromagneticFlowmeter DN32 DIN PN40

ENDRESS HAUSER PROMAG 53 53H04-1F0B1RA0B2AA ELECTROMAGNETIC FLOWMETER

ENDRESS HAUSER PROMASS 80M08-C99GAAAAA5AA 3/8" FLOWMETER 1/2"TRI-CLAMP 1500PS

Endress+Hauser Ceraba

Endress+Hauser CLD132-PVA118HB1 Smartec-S ConductivityTransmitter 24 VAC/DC

ENDRESS+HAUSER FTL51-, POINT LEVEL SWITCHLI

Endress+Hauser Li Point Level Switch,FTL51-RAC2CB4E5A,

ENDRESS+HAUSER SOLIPHANT II LEVEL CONTROLLER,5CB1,

ENDRESS+HAUSER WEDGEWOODHAT 1D2-C OPTICAL SENSOR ANDCABLE

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ENERCON DATA LM3414-01 CONTROL BOARD ENER0001

Enerpac P18 Hydraulic Hand Pump with Setra 207 & Hydac &Ss-4TF2-05 & Ss-BVM8

ENI MW-5DM6 RF matchwork interface

ENTEGRIS / FLUOROWARE 201-35 AND 202-59 VALVE ASSEMBLY WITHFILTER HOUSING

Entegris CE35KFI4R GateKeeper inert gas purifier 1slpm maxflow

Entegris Fluoroware, 8PM16F01, 8PM-16F-01, 9435395, 100368015,LOT OF 6

Entegris WG2FT1RR2, Gas Filter WFGD2F MIRCO 1/4" VCR, LOT OF2,

ENTEGRIS/FLUOROWARE 202-69 VALVE ASSEMBLY

Entrelec BFMSUB15FHR 2035700 BFM.SUB 15F HR 0020 357 00, Lot Of47,

Entrelec CONTROL BOARD RM421A 24Vac/DC 10A, 20050-04,#137G40

ENTWIRRUNGSPRINT 1 40.04.302 SERVO / ENCORDER CONNECTIONBOARD

EOS GAS CYLINDER P max 20 BARS 48-200-3A-DB1/4",OYY194-3A-R,#104BA

EPC GANFET 100V 36A DIE OUTLINE, EPC2001C, 917-1079-2-ND LOT OF2035

EPC GANFET N-CH 100V 1.7A DIE, EPC2036, LOT OF 2250,

Eppendorf 0030076010 Sealed epT.I.P.S. 0.5-100μL 53mm EXP 20263,840 Tips

Eppendorf 0030078543 Lot of 21 Dualfilter T.I.P.S. 100 μL EXP2026 2016 pcs

Eppendorf 5820747005 Aerosol-Tight Caps for Rotor S-4-104S-4x750 S-4x1000

EPSON ELPLP03 REPLACEMENT PROJECTOR LAMP UNIT PPS-GF40MSCR150E4H

Epson SG8002CAPCC 32.768, Crystal Oscillators, Lot Of 500, ShipSame Day, A#48

-Era RT02-22D-90, RT0222D90, Rotor table RT02-22 series,

ERDCO ARMOR-FLO 3522-03T0-111, 3522-03TO-111, 352203T0111, 1 to10 GPM Water Flo

ERDCO ARMOR-FLO 3522-04T0-111, 3522-04TO-111, 352204T0111, 1 to15 GPM Water Flo

ERICKSON HSK63ASMC22050M, D8ER01,

Eriks ECON Globe Valve with Fixed Disc Lever DN80 Size PN16JL1040 12160108

ering, Lot Of 644,

ERNST LEITZ WETZLAR GMBH TYPE 020-448.026 572001/064692 with NPL20X/0.35 DF

ERO FUHRUNGEN VS 50, VS50, 1720403/01, 1720403/02, T10460345-1,LOT OF 2#1533M15

ESAB 9-2240, 92240, Gas Distributor, CAS-2130, LOT OF13,#1624T17

ESCA 500055247-ELB VDF VACUUM PLUMBING BELLOW

Escort Memory Systems HS850-4, HS8504, WITH2-3 days #1602AC

ESMD751X2SFA LENZE INVERTER

Esser Test Charts LG2-D 4 X 24w transparency illuminator

ESTIC Nutrunner Motor 5-Meter Cable, ENRZ-CVMN-050-M4,ENRZCVMN050M4, LOT OF 2

Estic Servo NUTRUNNER TOOL UNIT, ENRZ-TU001-S (NA978), TU001-SC3YG530, #1552P4

Estic Servo NUTRUNNER TOOL UNIT, ENRZ-TU001-S, ENRZTU001S, 100W,531140,

Estic Servo NUTRUNNER TOOL UNIT, ENRZ-TU001-S,ENRZTU001S,#1552P3

Esticr 3AC 200V-230V, 100W, ENRZ-DU10, ENRZDU10,#1552P1

E-Switch Tactile Switches RED LED, TL1240R1JCLR, LOT OF 475,

ET1266M 1DI200A-90 FUJI MODULE RELIANCE ELECTRIC 602909-69AE60290969AE

ET439 FUJI IGBT MODULE

ETL SANITATION LISTED .75" X 1.00", 3016449, LOT OF 7400,

ETN31-055 ETN31055 FUJI MODULE

ETN35-030 FUJI MODULE ETN35030

ETN36-030 FUJI MODULE ETN36030

ETN36-060 ETN36060 FUJI MODULE

ETX003700 YASKAWA PCB ETX003700

ETX003730 YASKAWA PCB ETX003730

EUCHNER Proximity Switch SN02X12-732L-MC2459, SN02X12732LMC2459,LOT OF 2

EUCHNER Safety switch STP, STP1A-528A024RC18EXT1, EN60947-5-1,

EUDYNA FMM5061VF X-Band POWER AMPLIFIER MMIC

EUPEC / INFINEON MODULE FP150R07N3E4

EUPEC INFINEON MODULE FZ1200R45KL3-B5 FZ1200R45KL3B5FZ1200R45KL3_B5

Eurothe

Eurothe

EV1265F FUJI MODULE

EV900-1670-22 ABB MODULE EV900167022

Evaporative Cooler Salt Prot Navy-1W, Bem 020615,732939030A,

EVF31H-035 FUJI MODULE

EVF9326-EV LENZE AC EVF9326EV

EVS9324-ES LENZE INVERTER

EWAL 56-32-4VM2-28 & CGA-330 Gas Regulator Inlet 1/4" VCR, LOTOF 6 SETS, #109X3

EWAL Gas Regulator Inlet 1/4" VCR, 56-50-4VM2-44, NUT 580, LOTOF 5 SETS#109N3

EXCELTA SMD-VAC-GP PART NUMBER 4000-GP VACUUM TWEEZERS WITHOUTPEN

Exclusive Design Co. 16695 4 axis interface board

Exclusive Design CO. ASM 8285 printed circuit board

EXERGEN T/C MA Transmitter, XMTR J-500F/260C, 124920, T/C.XMTR,LOT OF 2 #1625B

EXERGY SANITARY HEAT EXCHANGER, SHELL AND TUBE SST, 00283-1,15593#1326B

Exfo FIP-S1 ZP-FBP-9000 Hand Held Display Video Fiber InspectionProbe VS 1.03

Exper Data model E20 CSMA/CD tester ethernet E20 220 volt 50hz

EXTECH FO610 FIBERMETER FIBER OPTIC POWER METER 9V HIGH POWERMODEL

E-Z Systems Braintree Scientific E200 E20040 Euthanax Opti RatLid Pie Shaped

F12-25R12KT4G F1225R12KT4G EUPEC / INFINEON MODULE

F3L200R07PE4 INFINEON POWER MODULE

F3L200R12W2H3-B11 F3L200R12W2H3_B11 INFINEON / EUPEC IGBTMODULE

F3SJ-E0625P25 F3SJE0625P25 OMRON LIGHT CURTAIN SENDER &RECEIVER

F4-100R12KS4 F4100R12KS4 EUPEC / INFINEON MODULE

F4-150R12KS4 EUPEC POWER MODULE

F4-400R12KS4_B2 EUPEC / INFINEON MODULE F4-400R12KS4-B2

F4-400R12KS4-B2 EUPEC / INFINEON MODULE

F4-50R12KS4 F450R12KS4 EUPEC / INFINEON IGBT MODULE

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F4-75R12KS4 EUPEC / INFINEON MODULE F475R12KS4

F4-75R12MS4 F475R12MS4 EUPEC MODULE

F940GOT-LWD-E F940GOTLWDE MITSUBISHI HMI PANEL

F940GOT-SWD-E F940GOTSWDE MITSUBISHI HMI PANEL

FAA24350BK1 ELEVATOR LIFT DOOR CONTROLLER

FAA24350BL1 ELEVATOR LIFT DOOR CONTROLLER

FABRICATION TC-1005, TFC1215, Cutting Tool TC-1005, LOT OF6,

FAFNIR 317KD BALL BEARING

FAG 6315.C3 BEARING

FAG Single Row, B719-E Series, B71906-E-T-P4S-UL, LOT OF2,#124E14

Fairchild 75222 model 75 pressure regulator

Fairchild Buffers & Lineuad 74AC125SC, Lot Of 124,D#7

Fairchild IC Multivibrator Mono MM74HC123AM, MM74HC123AM-ND, LotOf 360, H#44

Fairchild Mosfet Single P-ch Fet Enchancement Mode, NDS8434, LotOf 2173, E#2

Falcon 352098 polypropylene conical centrifuge tube 50 mL caseof 500

Falcon 357521 Disposable Polystyrene 1 mL Serological PipetsSterile 800 pcs

Falcon 357600 100 mL Serological Pipet Polystyrene 1.0Increments X60 Exp2022

FAN 6250MG1 IKURA SEIKI SS FAN

FAN FULLTECH UF-16FC23 UF16FC23 230V

FAN FULLTECH UF-16FC23-BWHJ1 230V 50/60HZ

FAN P2207HBL PROFANTEC

FANUC A02B-0099-C150/MB, A02B-0099-C150, OPERATOR CONTROLPANEL,

FANUC A02B-0323-C205, A02B0323C205, SEPARATE DETECTOR I/FUNIT#141T1

FANUC A03B-0819-C106, A03B0819C106, I/O MODULEDIGITAL,#141T2

FANUC A06B-0064-B503 SERVO MOTOR BiS 4/4000HV WITHA860-2020-T301 PULSECODER

 FANUC A06B-0123-B577

 FANUC A06B-0315-B051 AC SERVO MOTOR MODEL SF

 FANUC A06B-0342-B221 AC SERVO MOTOR MODEL SF

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FANUC A06B-0522-B251 SERVO MOTOR PULSE CODER

FANUC A06B-0562-B076 AC SERVO MOTOR MODEL L6/3000

FANUC A06B-6058-H224, A06B6058H224, SERVO AMPLIFIER,

FANUC A06B-6080-H307-R, A06B-6080-H307, A06B6080H307R,AMPLIFIER