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57310001-CC/DSPC-CC/DSPC-CC/DSPC171

 PLC的外部設(shè)備主要是指控制系統(tǒng)中的輸入輸出設(shè)備，其中輸人設(shè)備是對系統(tǒng)發(fā)出各種控制信號的主令電器，在編寫控制程序時(shí)必須注意外部輸入設(shè)備使用的是常開還是常閉觸點(diǎn)，并以此為基礎(chǔ)進(jìn)行程序編制。否則易出現(xiàn)控制錯(cuò)誤。

在PLC內(nèi)部存儲(chǔ)器中有于輸入狀態(tài)存儲(chǔ)的輸入繼電器區(qū)，各輸入設(shè)備（開關(guān)、按鈕、行程開關(guān)或傳感器信號）的狀態(tài)經(jīng)由輸入接口電路存儲(chǔ)在該區(qū)域內(nèi)，每個(gè)輸入繼電器可存儲(chǔ)一個(gè)輸入設(shè)備狀態(tài)。PLC中使用的"繼電器"并非實(shí)體繼電器，而是"軟繼電器"，可提供無數(shù)個(gè)常開、常閉觸點(diǎn)用于編程。每個(gè)"軟繼電器"僅對應(yīng)PLC存儲(chǔ)單元中的一位（bit），該位狀態(tài)為"1"，表示該"軟繼電器線圈"通電，則程序中所有該繼電器的觸點(diǎn)都動(dòng)作。輸入繼電器作為PLC接收外部主令信號的器件，通過接線與外部輸入設(shè)備相，其"線圈"狀態(tài)只能由外部輸入信號驅(qū)動(dòng)。

手機(jī)

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 Qq:

鄭娟萍

廈門仲鑫航自動(dòng)化設(shè)備有限公司 

 PLC的各種功能主要是通過運(yùn)行控制程序來實(shí)現(xiàn)。編制程序時(shí)，需要合理使用PLC提供的編程元件（即軟元件）。FPO型PLC中常用的編程元件有兩種：位元件（bit）和字元件（word）。位元件實(shí)際上是PLC內(nèi)存區(qū)域所提供的一個(gè)二進(jìn)制位單元，又被稱為軟繼電器，主要用作基本順序指令的編程元件，如輸入繼電器Xn、輸出繼電器Yn、內(nèi)部通用繼電器Rn、定時(shí)（計(jì)數(shù)）器等，其參與控制的方式主要是通過對應(yīng)觸點(diǎn)的通斷狀態(tài)改變影響邏輯運(yùn)算結(jié)果即輸出。

    字元件則為PLC內(nèi)存區(qū)域內(nèi)的一個(gè)字單元（16bit），主要用作功能指令和高級指令的編程元件，通常用以存放數(shù)據(jù)，如數(shù)據(jù)寄存器DTn，定時(shí)(計(jì)數(shù))器的設(shè)定值SVn、經(jīng)過值EVn等。字元件沒有觸點(diǎn)，通常以整體內(nèi)容參與控制。

NEW SQUARE D THERMAL HEATER ELEMENT 1-B45 B45 

NEW ROBERTSHAW CARRIER ENCLOSURE H K 0 9 U Z-0 I 2 

LOT OF 2 SIEMENS 3RV1915-3C AUXILIARY LINE SIDE FEEDER BAR 

CAROL SUPER VUTRON ET-2-P-123-70 600V POWER CABLE 80'

BURNS 158 378 158378 APPROXIMAY 9" X 1/4"  PROBE THERMOCOUPLER 1/2" NPT

Davis Instruments Inotek Temperature Probe NEW 8' Lead

COLEMAN CABLE 962624606 516' FT CAT 5E 24AWG CM 4PR UTP 3034181 CMX-OUTDOOR FT1

SICK HK SYSTEMS P05017-B PHOTOELECTRIC CONVEYOR SENSOR

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J W MILLER BELL LINE CHOKE D-7825-5 100 uH 5 A

BALDOR FLEX DRIVE II FPH1A02TB-RN23 F+DII 115V 2A FPH1A02TBRN23

NEW PHILIPS SWITCHABLE ADAPTER 9AVMAC-074I  9AVMAC074I

USED DYNAPAR HA62500600640 ENCODER 3/8" SHAFT  

MTE HYDRAULIC PUMP S202-2247 S2022247 NEW

HASTINGS VACUUM GAUGE 760 WITH DV 760 DV-4R NEW

Bradley Corp Stop Strainer and Check Valve Repair Kit S45-050 S45050 New

BONFIGLIOLI RIDUTTORI GEAR REDUCER VF44 P1 HS 

No Name Aluminum Heatsink Heat Sink Sync 9"x 6-1/4"x 1-9/16" 

2 GE ULTRAMAX BALLAST GE-132-MAX-N / ULTRA 120-277V 60H

 TRANE HDL00867 PLASTIC ACCESS DOOR HANDLE

NANA CURRENT SENSOR NNC-10GA 58A-4V NNC-10GA AMO NNC10GA

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ERICSSON RU22 21IV40 2100 CELLULAR RADIO UNIT MODULE KRC-118-29/2 AW118292

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EMERSON COMPUTER POWER OUTPUT FILTER KIT ASSY 79094-01-26-PL-6 71558-61-2 new

Mercoid Control Mercury Switch DA-31-3-3A DA3133A NEW

EBIT Q BLAZER V.32 HIGH SPEED MODEM TQB1

New Proportion-Air Inc. Transducer DSY065 DSY 065 

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NEW EATON TWIST-LITE SUCTION VALVE ENABLE SWITCH 10EA1C5F3J4 10EF3-0034

IMAJE MARKEM INK JET PRINTER DISPLAY CONTROL S8 IP 65 IP65

NEW CUTLER HAMMER PROXIMITY SENSOR E57-30LE22-B1 SER E1 10-50Vdc 22MM 200mA 

NO NAME ALUMINUM HEATSINK HEAT SINK SYNC 9"x 6-3/8"x 1-1/8" 

Ohmite Potentiometer CU-1011 CU1011 100 Ohms AB

Marel M2000 Series Control Unit Remote Control MR-1 MR1 Used

BADGER METER XMTR METER 222.96 PULSES PER GAL GALLON 6GPM PFT-420 59010-005

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SIEMENS MANUAL MOTOR CONTROL 3RV1421-1EA10 2.8-4A CLASS 10 SIRIUS 3R

TI Model 305-02DM 30502DM Data Communications NEW

FACTS PLC OUTPUT MODULE F2-08TRS 12-28Vdc 10mA 7A A AMP  F208TRS 

WEIL-MCLAIN 51128 311-103-821 51124 311-103-851 51125 311-103-818 CG BOILER NEW

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NEW MAXLITE HIGHMAX HIGH POWER CFL RETRO-FIT LIGHT BULB LAMP SKO200EAWW 200 WATT

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Swagelok Plastic Front Ferrule NY-1613-1 NY16131 Lot of 10 New

NEW LOT OF 94 3M SCOTCHLOK ELECTRICAL SPRING CONNECTOR Y 

NEW PARKER SEAL KIT PKH-PK152HLL05 PKHPK152HLL05 

Mitutoyo Digital Readout SD-D1E SDD1E DC 9V-500mA

Eddy Current Clutch ECC Follower Kit 615163 1235-01

SQUARE D DICONNECT 30A SIZE 1 STARTER COMBO 8538-SCG11

PERKIN-ELMER INSTRUMENT SER. 0507 0-90 

JOD Uniphase SFP Optical Transceiver 200/100-M5/M6-SN-I 52P6537 Lot of 2 Used

MULLER ELECTRONIC MODULE (0511) 46 40 41

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NAMCO Pulling Solenoid EB550-00004 110/120v NEW 

Clark 992376 Solenoid Valve 992-376 New

PRX ME500806 F 9734 MODULE BLOCK ME500806F9734

LOT OF 2 OGDEN LIMIT CONTROL TEMPERATURE CONTROLLER ETR-9040-4110 ETR-9040-411B

CM Yale Brake Lever Kit 51543120

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NAMCO CYLINDICATOR PROXIMITY SENSOR 3000 PSI

ELECTRONICS ICS INSTRUMENT COUPLER 4880 4881 REV. 24

AIRMAT AIR MAT 13FT 13' HOSE 1/2" I.D. 3/4" O.D. NEW

SSD DRIVES CONVERTER  5702-5  57025  

SPECTROL Potentiometer 534-21202 53421202 NEW  

GLASSHEAT GLASS HEAT RADIANT HEATING PANEL 1445 DTC 1445DTC 1500W 1500 W 240V

NEW CRYDOM / SCHNEIDER RECTIFIER ALUMINUM HEAT SINK SSHE-90 SSHE90 3-1/2H 4W 6L

New Naherungsschalter Proximity Switch 0920 220/7 

Hubbell Deluxe Cord Grip 07401080 1/2" NPT .500"-.625" DIA Range New

SQUARE D POWER PACT JL 250 MOLDED CASE SWITCH JLN36000S25ABSO 250A 250 AMP A 3P

NEW NO NAME STRAIN RELIEF CORD 36567 .53-.73 

NEW RETRACTIAL CABLE 25-38697-02 A

MITSUBISHI POWER MODULE CM400HA-24H CM400HA24H - USED

NEW NUPRO POPPET PRESSURE CHECK VALVE SS-4CPA4-50 1/4"NPT S/S STAINLESS STEEL

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EATON PRL1A 225A 225 A AMP 208Y/120V3PH 4W BREAKER PANELBOARD

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YASKAWA PC BOARD JANCD-MSV01B DF9201893-A0N REV.F01 MSV01B w/ JANCD-MSV02 REV.D

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NEW SCOTCH 054007-10885 #35 BROWN ELECT TAPE 3/4"x 66'

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SQUARE D MCC BUCKET ND-403 ND403 SIZE SZ 2 120V a 60HZ 

Aero-Motive Slip Ring Kit V400107000 New

GoodYear Super Torque Timing Belt  250S8M976 S8M976 New

Gould Message Cartridge J524-104 J524104 Used

NEW FESTO CYLINDER EG-12-25 EG1225 8 BAR

RAYTHERM B1045-25 B104525 - USED

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NEW CURTIS 2311294 DISCHARGE INDICATOR 

NEW DOCKWIELER DW-CAP KLAM-1.4301 P40817 

AUTOMATION DIRECT AUXILIARY CONTACT GH15T22 GH-15T22

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Hubbell Grounding Ball Stud Assembly CS600-2102 CS6002102 CS600 2102 New

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NEW HUBBELL MALE TWIST LOCK PLUG 20 AMP A 20A 480V 

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ROSEMOUNT PRESSURE TRANSMITTER 1144 A0200A22 200 PSI

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NEWPORT ELECTRONICS SERIAL PRINTER PR2201

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(21) Renold Limited OFFSET LINK # 35-2 352 New

PERKIN-ELMER .028 .025 MM

DWYER 3205 PHOTOHELIC 25 PSIG PRESSURE SWITCH /GAGE 

Allen Bradley Coil 85A83 220/240 V Volt New

SENSONICS LTD IS 056 9251 TRANSDUCER 12 VDC 

NEW HARTING CONNECTOR 09 06 015 287 1 0906 0152871 15-PORT

Balluff 0527DE 122288 Inductive Proximity Switch 

NEW SQUARE D 9007 CT-52  BASE RECEPTACLE 9007CT52

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NEW SQUARE D 9007 CT-52  BASE RECEPTACLE 9007CT52

NEW LOT OF 10 LEGRIS PUSH CONNECT STRAIGHT TUBE UNION 3106-60-00 3/8"OD 31066000

EMECANIQUE DE9.RA 1012 DE9.RA1012 1/2" NPT ADAPTER NEW 

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New Foxboro Pen Lift Assembly M0100A6 Lot of 2

McMaster-Carr GP1463KGL6 6" Thermocouple Probe GP-1463-KGL-6 Type K New

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No Name Thermocouple 18' 1385.2901 New

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Car Quest JP-6 Point Set JP6 New

NEW GE GENERAL ELECTRIC AUXILIARY SWITCH 284B103 G1 284B103G1 TYPE SB-1 SB1

AMERICAN STANDARD BAYSPEK047A SINGLE POWER ENTRY KIT 

Rosemount E96 Part 2001864 E 2001 864

DRI STEEM DRISTEEM SCR POWER CONTROLLER 70A 70 AMP A 3224-70A 322470A

HOWA DISPLAY METER HDS-2 HDS2 M122918 

CINCH 20 POSITION TERMINAL BLOCK NEW 

Mitsubishi Lithium Battery GT15-BAT GT15BAT New

MARS OVAL MOTOR RUN CAPACITOR 45 UF MFD 440V 12048 NEW

Rexnord Gear RS 1030 RS1030 New

Durant Eaton Simultaneous Processor 49990-408 49990408 15 VDC New

MITSUBISHI MELSEC OUTPUT MODULE BOARD AY41 AY-41

AGV ZAHN Chopper Servo Amplifier CH10090F/120 

Electro Corp Model 727287 Used

NORDSON GUN TRIGGER HARNESS 1025746A 1025746 REV A02

GOULD SHAWMUT SEMICONDUCTOR FUSE A50P125-4 125A 125 A AMP 450V DC 500V AC 

NEW LOT OF 2 NO NAME VACUUM SUCTION CUP WITH CLEATS F-30 F30 MALE 1/8" NPT 30 MM

Allen Bradley AB 173257 NEW

Thomas & Betts Male Screw Terminal Insert B10 Series MS210B 16 A Amp 600V New

MIKAB A/D Thermocouple Card 20801-0 

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Intec Length Disc 7010047 Rev E Used

Spraying Systems Nozzle H1/8VV 4001 H1/8VV4001 NEW

SIRRIS TI-142 TI 142 TI142

NEW FLEXCO ALLIGATOR BELT LACING SET 27-18 10167 17/32" X 9/32" 

CARRIER SUBBASE/THERMOSTAT HH93AZ176 HH 93AZ 176 NEW

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NEW EATON CUTLER HAMMER BREAKER ENCLOSURE FLUSH SURFACE COVER CH8BF

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