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PLC可編程控制器的特點(diǎn)
    1）、可靠性高，抗*力強(qiáng)。工業(yè)生產(chǎn)一般對(duì)控制設(shè)備的可靠性要求很高，并且要有很強(qiáng)的抗*力。PLC能在惡劣的環(huán)境中可靠的工作，平均*時(shí)間達(dá)到數(shù)萬(wàn)小時(shí)以上，已被*為zui可靠的工業(yè)控制設(shè)備之一。
    PLC本身具有較強(qiáng)的自診斷功能，保證硬件核心設(shè)備（CPU、存儲(chǔ)器、I/O總線等）在正常情況下執(zhí)行用戶程序，一旦出現(xiàn)故障則立即給出出錯(cuò)信號(hào)，停止用戶程序的執(zhí)行，切斷所有輸出信號(hào)，等待修復(fù)。PLC的主要模塊均采用大規(guī)模和超大規(guī)模集成電路，I/O系統(tǒng)設(shè)計(jì)有完善的通道保護(hù)與信號(hào)調(diào)理電路。在結(jié)構(gòu)上對(duì)耐熱、防潮、防塵、抗震等都有精確的考慮，在硬件上采用隔離，屏蔽、濾波、接地等抗干擾措施，在軟件上采用數(shù)字濾波等措施。與繼電器系統(tǒng)和通用計(jì)算機(jī)相比，PLC更能適應(yīng)工業(yè)現(xiàn)場(chǎng)環(huán)境要求。
    2） 硬件配套齊全，使用方便，適應(yīng)性強(qiáng)
    PLC是通過(guò)執(zhí)行程序?qū)崿F(xiàn)控制的。當(dāng)控制要求發(fā)生改變時(shí)，只要修改程序即可，zui大限度地縮短了工藝更新所需要的時(shí)間。PLC的產(chǎn)品已標(biāo)準(zhǔn)化、系列化、模塊化，而且PLC及配套產(chǎn)品的模塊品種多，用戶可以靈活方便地進(jìn)行系統(tǒng)配置組合成各種不同規(guī)模、不同功能的控制系統(tǒng)。在PLC控制系統(tǒng)中，只需在PLC的端子上接入相應(yīng)的輸入/輸出信號(hào)線即可，不需要進(jìn)行大量且復(fù)雜的硬接線，并且PLC有較強(qiáng)的帶負(fù)載能力，可以直接驅(qū)動(dòng)一般的電磁閥和交流接觸器。
    3）、編程直觀、易學(xué)易會(huì)
    PLC提供了多種編程語(yǔ)言，其中梯形圖使用zui普遍。PLC是面向用戶的設(shè)備，PLC的設(shè)計(jì)者充分考慮到現(xiàn)場(chǎng)工程技術(shù)人員的技能和習(xí)慣，因此PLC程序的編制采用梯形圖的簡(jiǎn)單指令形式。梯形圖與繼電原理圖相似，這種編程語(yǔ)言形象直觀，易學(xué)易懂，不需要專門的計(jì)算機(jī)知識(shí)和語(yǔ)言，現(xiàn)場(chǎng)工程技術(shù)人員可在短時(shí)間內(nèi)學(xué)會(huì)使用。用戶在購(gòu)買PLC后，只需按說(shuō)明書的提示，做少量的接線和進(jìn)行簡(jiǎn)易的用戶程序編制工作，就可靈活方便地將PLC應(yīng)用于生產(chǎn)實(shí)踐。
  手機(jī)

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鄭娟萍

廈門仲鑫航自動(dòng)化設(shè)備有限公司  

  4）、系統(tǒng)的設(shè)計(jì)、安裝、調(diào)試工作量小，維護(hù)方便
    PLC用軟件取代了繼電器控制系統(tǒng)中大量的中間繼電器、時(shí)間繼電器、計(jì)數(shù)器等器件，使控制柜的設(shè)計(jì)、安裝、接線工作量大為減少。同時(shí)PLC的用戶程序大部分可以在實(shí)驗(yàn)室進(jìn)行模擬調(diào)試，模擬調(diào)試好后再將PLC控制系統(tǒng)安裝到生產(chǎn)現(xiàn)場(chǎng)，進(jìn)行聯(lián)機(jī)調(diào)試，既安全，又快捷方便。
    PLC的故障率很低，并且有完善的自診斷和顯示功能。當(dāng)發(fā)生故障時(shí)，可以根據(jù)PLC的狀態(tài)指示燈顯示或編程器提供的信息迅速查找到故障原因，排除故障。
    5）、體積小，能耗低
    由于PLC采用了半導(dǎo)體集成電路，其體積小，重量輕，結(jié)構(gòu)緊湊、功耗低、便于安裝，是機(jī)電一體化的理想控制器。對(duì)于復(fù)雜的控制系統(tǒng)，采用PLC后，一般可將開關(guān)柜的體積縮小到原來(lái)的1/10~1/2。

Allen-Bradley Model: 700-HA32Z24 Relay, Series B  w/700-HN100, Series B   

Allen Bradley: 700-HC54Z24 Relay, Series A w/700-HN103 Base, Series B  W

Allen Bradley: 700-HF32Z24-1 Relay, Series B w/ IDEC SH2B-05 Base   W

Allen-Bradley Cat. #:  700-HA32Z24 Relay Series: A,  w/700-HN100 Base, Series C 

Allen Bradley: 700-HC14Z24-3-4 Relay (Series D) w/700-HN128 Base (Series B)  W

Barber-Colman Model: CA11-24060-22 Solid State Contactor   

Grayhill Model: 84BA1-003 Keypad, 12 Alphanumeric Keys 

Allen-Bradley Cat #: 700-HA32Z24 Relay, Series B  w/ Potter & Brumfield 27E891 W

Allen-Bradley Cat #: 700-HA32Z24 Relay, Series B  w/ Custom Connector 0T08-PC  W

Opto 22 Model PB32Huad 8-Module Rack w/ Term 1 Bd. 

Opto 22 Model:  480D15-12 Solid State Relay.  Gently Used Stock   

Opto 22 Model: 001788J Brain Board, B4  

Opto 22: ODC5Q, 4-Channel DC Output Module, Used   

Lot of Omron Model: G2R-1-SND, 24V DC Relay.  Qty. 5  

Opto 22: IDC5Q, 4-Channel DC Input Module, Used   

GUARDMASTER FERROCODE Control  EN1088 / EN60204 =

Potter & Brumfield Model: KRPIID DPDT 10A, 24V Relay  New Old Stock. 

Gordos: IDC5 Relay Module.   New Old Stock.  No Box  

Potter & Brumfield / AMF: SSR-240D25 Solid State Relay 

Opto 22 Model: IDC5BQ, 4-Channel Input Module   

Lot of Omron Model: MY4N Relays with Base.  Qty. 2  

Lot of Magnecraft W6125DSX-1 (2) w/ Opto 22 240A45 (1) 

Allen-Bradley Model: 700-HA32Z24 Relay, Series C  w/700-HN125 Base, Series A  

Allen-Bradley Model: 700-HA32Z24 Relay w/700-HN100, Series A 

Allen-Bradley Cat. #: 700-HA33Z24-1-4 Relay, Series B  w/700-HN101 Base, Ser. C 

Allen-Bradley Model: 700-HA32Z24 Relay w/700-HN100, Series B 

Electromatic Model: RT 202 380 10 24 Solid State Reversing Relay      O

Potter & Brumfield Model: KUL-11D15S-12 Relay w/ Base.  Coil:  12VDC 

Magnecraft & Struthers Dunn Model: W388ML2CPX-6 Relay w/ Base. Coil: 12VDC  

Allen-Bradley Cat. #:  700-HA32Z24 Relay w/700-HN101 Base, Series C 

Allen-Bradley Cat. #:  700-HA32Z24-1-4 Relay w/700-HN101 Base, Series C 

Potter & Brumfield: CDD-38-30005 Time Delay w/Base  

Allen-Bradley Cat. #:  700-HA32Z24-1-4 Relay w/700-HN101 Base, Series B 

Lot of Allen Bradley: 700-HN122 Base. Quantity 2 *W

Allen-Bradley 700-HN121 Relay Socket *W

Opto 22 Model: PB16HC I/O Module Mounting Rack.  New Old Stock  

Allen-Bradley Cat. #:  700-HA32Z24 Relay, Series B  w/700-HN100 Base, Series C 

Allen-Bradley Cat. #:  700-HA32Z24 Relay, Series C  w/700-HN100 Base, Series C 

IDEC Model: SH2B-05 Relay Base.  New Old Stock   

Weidmuller Model:  8003891001 / 800389 1001 Terminal Block   W

Lot of Magnecraft / Struthers-Dunn:  W76EURCPCX-14 Relays.  Qty. 2.  New Old  

Lot of  Coto Technology Model: 2200-2302 Reed Relays.  Qty. 30. New Old Stock  

Lot of IDEC Model: SY2S-05 Relay Bases.  Qty. 3.  New Old Stock   

IDEC Model: RY4S-ULDC24V Relay.  New Old Stock.  No Box   

edyne SSP Model: 601-2 Solid State Relay.  New Old Stock.  No Box.  

Potter & Brumfield Model: KHU-17A11 Relay  

Lot of Potter & Brumfield: KHU-17D11 Relays.  Qty. 4.  New Old Stock.  No Box  

Allen-Bradley Cat. #: 700-NA20 (Series B) Attached to 700-N400A1 (Series C)   W

Opto 22 Model: OAC5uad I/O PAK Module    

Allen-Bradley Cat. #: 700-N200A1 Relay, Series B   W

 Potter & Brumfield / AMF Model:  KUP14D15 Relays    

Crydom Model: S312 Solid State Relay  

Opto 22: G4 OAC15 Logic Output Module. 120VAC & 3A.  New Old Stock   

Opto 22 Model PB16Huad 4-Module Rack w/ Extras  

Opto 22 Model PB16Huad 4-Module Rack w/ IDC5BQ's  

Allen-Bradley: 700DC-P1200Z4 DC Control Relay, Series A 

Allen-Bradley: 700-NM400A1  Relay, Series E 

Crydom Model:  D102  Solid State Relay.  New Old Stock  

Siemens Model:  8WD4 408-0AA Stack Light Base   W

Allen-Bradley: 700DC-P600Z24 Control Relay, Series A   

edyne SSP Model: 603-22 Solid State Relay.  New Old Stock.  No Box.  

Barber-Colman Model: CA11-24060-33-1-20 Solid State Contactor   

IDEC Model: RY4S-U-DC24 Relay.  New Old Stock.  No Box   

Motorola Subsystems Products OAC5 Output Module 

Opto 22 Model: G4 IDC5D Input Module.  5 Volt Logic.  New Old Stock   

Airotronics Timer and Controls: THCU155C.  10-120VDC / 19-265VAC.  1.5 Sec On  

Mixed Lot of Crydom D2425 & DC60S3 Solid State Relays  

Murr Elektronik Art. No.  51551 Output Relay.  Unused Old Stock   

Omron Model: G3F-203S Relay with Omron 2-M4X10  Base  

Omron: G7TC-OC16-DC 16 Point Relay Block w/16 Relays 

Omron: G7TC-OC16-DC 16 Point Relay Block w/13 Relays 

Lot of  of Weidmuller RS 30 Relays, Qty. 2 

Electrocube Model: RG1986-7 RC Networks Capacitor.  New Old Stock   

Opto 22 Model: IDC5B Relay Modules.  New Old Stock  

IDEC Model: RR3PA-U.  24V Relay.  New Old Stock.  No Box.   

Allen Bradley: 700-HF32Z24-1-4  Relay w/ Dayton 2A582M Base.  300V, 10A.  

Allen Bradley: 700-HF32Z24-1-4  Relay w/ Allen Bradley 700-HN116 Ser. B Base.  

Omron Model: LY4I4N Relay with Allen Bradley 700-NH139 Series A Base  

Potter & Brumfield / AMF Model:  KUP9311D11  Relay.  24VDC    

Allen-Bradley Cat. #:  700-HA32Z24 Relay w/700-HN125 Base.  Series A  

Allen-Bradley Cat. #:  700-HK36Z24-4 Relay.  Series: A.  New Old Stock  

Grayhill Model: 70-ODC5  I/O Module, Unused  

Payne Engineering Model: 18D-2-20.  Standard 20A,  240VAC SCR Power Control   

Benshaw Model: LLTCBRS6-150-4-1-6A1-5A1-7A5-13A3-28A1 SCR   

Agastat Model: 7012AH Time Industrial Relay.  3 - 30 Min.  Unused Old Stock   J 

Opto 22: 120D3 Solid State Relay, 3-32VDC Control.  New Old Stock  

Weidmuller Model:  CSA 950 (235) /UL 1950 DIN Rail Mount Power Supply   J 

Allen-Bradley Model: 700-HA32Z24 Relay w/700-HN100  

Gordos Model: DR-OAC Solid State Relay.  New Old Stock  

Action Instruments: AP4130-1416S Config. Isolator  

Lot of Opto 22 Mdl: IDC5B Relay Modules, Qty. 2

Mixed Lot of Crydom Mount State Relays. D1202 & D1225  

Coto Technology P/N: 3400-0057 Relay, Used Pull  

Allen-Bradley Cat. #:  700-HA32A1-1-4 Relay, Series C.  New Old Stock  

Lot of IDEC: RR3PA-UL, 24V DC Relays w/ IDEC SR3P-05 Bases 

Lot of IDEC RH4B-U Ice Cube Coil Relays, Qty. 3  

Lot of Magnecraft Model W67ARCSX-2 Relays, Qty. 2

Lot of Magnecraft Model W67ARCSX-5 Relays, Qty. 2

Allen-Bradley Cat #: 700-HA32Z24-4 Relay w/700-HN125 Base.  Series A 

Potter & Brumfield: KHU-17D11-12  Relay.  New Old Stock.   

Hamlin Model: 7512D Solid State Relay.  240 VAC, 5A.  3 - 32 VDC    

Lot of Opto 22: 05C24 Input Logic Current Modules, 2  

Gordos Model: DR-OAC Solid State Relay.    

Gordos Model: DR-IDC24 Solid State Relay.    

Crydom Model: D2425 Photo Isolated Solid State Relay.  New Old Stock  

Aromat Model: ST1E-DC5V Relay.  New Old Stock.  No Box  

Lot of Allen Bradley: 700-HC24A1 Relay w/700-HN128 Base

Potter & Brumfield:  OAC15 Logic Output Module. 120VAC & 3A.  New Old Stock   

Potter & Brumfield:  IAC-5E Logic Input Module. 120VAC & 3A.  New Old Stock   

Magnecraft / Struthers-Dunn Model: 70S2-04-03-V Load Control.  New Old Stock.   

Lot of VS Model: 12STCU-E Gen. Purpose Relay.  12VDC.  Qty. 3.  New Old Stock. 

Gordos Model:  PB-16SM  I/O Mounting Board  

Allen-Bradley Cat. #:  700-HA32Z24 Relays.   24VDC   

Potter & Brumfield Model: RK5-5DG-12 Relay.  New Old Stock   

Continental Industries Model:  RSDA-660-25-1D0 Solid State Relay  

Artisan Model:  4600A-6-1 Sold State Timer Module.  New Old Stock  

Lot of  IDEC: RHIB-U  Relays w/ IDEC SH1B-05 Bases.  Qty. 2  

Lot of Potter & Brumfield 27E121 Relay Sockets, 5  

Gordos: GA5-2D10 Solid State Relay.  120VAC, 10A, 3-32 

Omron / STI: Model:  44532-2050 with Omron: G7SA-5A1B-DC Safety Relay   W

Tyco / Potter & Brumfiel: K10P-11D15-24 Relay, with  27E895 Base.  24VDC   

Allen-Bradley Cat. #: 700-HA32Z24, Series A.  W/ 700-HN100 Base, Series B  

 IDEC Model: RR2P-U Relays w/ IDEC SR2P-05 Bases.  Good Used Stock   

Eberle Model: 0415-01-042-001 Control Relay   

SIEMENS MODEL: ED43B030 SENTRON SERIES CIRCUIT BREAKER *W2

Omron Model: G7L-1A-BJ-CB Coil Relay.  New Old Stock   

EI&S / Prime Technology: 120SS25-04 Solid State Relay.   New Old Stock  

Lutze Model: RE3-4-100/1 Output Relay Module.     

Potter & Brumfield: CDB-38-70092 Time Delay Relay   

Lot of Leach Model: Y-A1A-017 Relays, Qty. 3 

Lot of  NTE: R40-11D2-12  Relays.  Qty. 3.    New Old Stock  

Lot of  NTE: EW251 Flame Proof Resistors.   Qty. 12.     New Old Stock  

Lot of  NTE: EW230 Flame Proof Resistors.   Qty. 12.     New Old Stock  

Lot of  Radio Shack:  270-373B Micro Alligator Clips  Qty. 10  Copper Plated.   

Lot of  Radio Shack:  270-380A Micro Alligator Clips  Qty. 12.  New Old Stock   

Lot of  Philips ECG5545 Silicon Rectifier Controlled  Studs.  Qty. 4.  New Old  

Lot of  Allen Bradley Cat. #: RCR07G122JS Resistors. Qty. 50.  New Old Stock  

Gordos: SM-0DC5 Relay Module. 3A, 60VDC Out.  3.08 - 8 VDC In.  New Old Stock  

Magnecraft Model:  W88AX-8 Relay.  New Old Stock    

Allen Bradley Cat #: 195-MA22 Contactor w/199-MSMA1 Surg Suppressor  

Allen Bradley: 700-MB400 Contactor  w/199-MSMA1 Surge  

Agastat Model:  MTGP Industrial Relay. 

Hingham Bay Corporation: HBC-50HDA-M SCR w/ Crydom HD4850 Solid State Relay  

Allen-Bradley Model: 700-HA33Z24-3-4, Series D Relay w/ Releco: S3-B Base  

Allen Bradley Model: 700-HB33A1 Relay, Series B.  New Old Stock  

Allen Bradley: 700-MB400*  w/ 199-MSMA1 & 195-MA40  

BARBER COLMAN Solid State Contactor CB11-24060-031-00 =

Omron Model: LY2N-D2 Relay.  New Old Stock.  No Box 

Dale Model: CPSL-10-5 Wire Wound Resistor.  10W, .05Ω,  3%   New Old Stock  

Dale Model: CPSL-3-5 Wire Wound Resistor.  3W, .05Ω,  3%   New Old Stock  

Potter & Brumfield KRPA-14AG-120 Relay w/ 27E123 Base 

Opto 22 Model: 240D3  Solid State Relay.  3 - 32 VDC Control   

Lot of Finder Model: 55.34.9.024.0070 Relay.  7A, 250V.  Qty. 2.  New old Stock 

Lot of Finder Type: 90.27 Relay Sockets. Qty. 4,  10A, 300V.  New old Stock 

Opto 22 Model: IAC5Q, 4-Channel AC Input Module   

Crydom Model: D4D07 Solid State Relay.  400V, 7A Output & 3.5 - 32V Input   

Finder Type: 60.12 Power Relay.  DPDP,  10A,  250V.  New old Stock 

Crydom Model:  A4840 Solid State Relay. 90-280V Input.  280/480V Output.  40A   

Potter & Brumfield: CHB-38-70022 Time Delay Relay.  New Old Stock.  No Box     

Lot of Opto 22 Mdl: IDC5B Relay Modules, New .Qty. 10  

Fujitsu Model: FRL-263 Relay with 263S122 Base 

Lot of Turck Model: C3-A30 DX Relay with Base, Qty. 3  

Gordos Model: DR-IAC24 Solid State Relay.    

Lot of Finder Model: 94.74SMA 7A Relay Socket.  Qty. 2.  New Old Stock   

Hanyoung Model: HSR-2D202Z Single Phase Non-Contact Relay, For Low Voltage    O

Omron Model: G3NA-240B Solid State Relay.  24-240 VAC @ 40A     O

Durakool Cat# BFC-722  Mecury Relay, 1 Pole  

Omron Model: APR-S Phase Reversal Relay with Base    

Allen-Bradley Model: 700-HA32Z24-1-4 Relay w/ 700-hn125 Base.  Series A   

Lot of Opto 22 Model: ODC5R  Relay Modules.  Qty. 4. New Old Stock  

Opto 22 Model: G4 IDC5K Input Relay, 5V Logic.  New Old Stock.  No Box  

WRC Model: 1781-OB5S  Relay Module.  New Old Stock  

Lot of Magnecraft Model: W104EPX-3 Relays, Qty. 2.  New Old Stock   

NAIS / Panasonic Model: HC4-H-DC24V Relay.  New Old Stock.  No Box  

Allen-Bradley Cat. #:  700-HA33Z24 Relay.  Series D.  New Old Stock  

IDEC Model: RH3B-D Relay w/ SH3B-05C Base , DC 24V 

IDEC Model: RH2B-UD Relay w/ SH2B-05C Base , DC 24V 

Gordos: SM-IDC5 Relay Module.  Out: 50mA, 30VDC. In:  3.3-32Vdc.  New Old Stock 

Quadtronics (QT): CMR1501A Digital Time Delay Relay  

Macromatic Watch Dog Time Delay Relay, Model: TR-51322-07.  New Old Stock  

Agastat Model: 7012AH Time Industrial Relay.  3 - 30 Min.  Missing Screws    J 

Magnecraft Electric: M60AA-12A A.C. CONTACTOR *W2

Allen-Bradley Cat. #: 700-HA33Z24-4 Relay, Series A  w/700-HN126 Base, Series A 

Releco Model: C7-A20 Ice Cube Relay w/ Base.  AC: 120V, 60Hz  

Siemens Model: KHU-17D11-12 Relay.  New Old Stock  

Potter & Brumfield: CHB-38-80001 Time Delay Relay   

PhilipsECG Model: A25480 Solid State Relay  

Crydom Model: 240D3 Solid State Relay, 3 - 32VDC.  New Old Stock.  No Box     

Mixed Lot of Crydom Solid State Relay.  See List Below 

Magnecraft Model:  WM35AA-120A Contact Relay       

Omron / STI: Model:  44532-1030 Safety Relay   

 Potter & Brumfield / AMF Model:  KUP-14D15-24 Relay with Base.  24V