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(duì)系統(tǒng)發(fā)出各種控制信號(hào)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(hào)）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(wú)數(shù)個(gè)常開、常閉觸點(diǎn)用于編程。每個(gè)"軟繼電器"僅對(duì)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(hào)的器件，通過(guò)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(hào)驅(qū)動(dòng)。
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
PLC的各種功能主要是通過(guò)運(yùn)行控制程序來(lái)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(guò)對(duì)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(jí)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(guò)值EVn等。字元件沒(méi)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
NEW BOURNS POTENTIOMETER 6657N-402-105 6657N402105
NEW BUCHANAN TERMINAL SWING ARM AB31M 21 PIN 1771-WH 97611361 F
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
No Name Resistor Board Terminal Adapter 203709D New
SQUARE D MCC BUCKET 7.5HP 7.5 HP 15A SIZE 1 2053326-A.001 FHP36015 8736 SCO-7
ERICSSON RU22 21IV40 2100 CELLULAR RADIO UNIT MODULE KRC-118-29/2 AW118292
GE General Electric Trip/Close Control Switch 367 66455 2 16SB1BC301STS2B
NEW ARROW PNEUMATICS ELEMENT AND SEAL KIT EK9052-10 10M EK905210
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
NEW HUBBELL MALE TWIST LOCK PLUG 15 AMP A 15A 250V
NEW OPTO 22 AD10T2 ANALOG TO DIGITAL INPUT MODULE 100 OHM RTD
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
ABB Disconnect Switch EOT16 600 VAC 16A 16 A Amp Used
TIMONTA SUPPRESSOR FMW 2-41-1/I FMW241I
BALLUFF BES 516-418-SA7-L-03 20-250VAC 5-500mA INDUCTIVE PROXIMITY SENSOR NEW
Leviton Transient Voltage Surge Suppressor & Noise Filter 51020-WM 120/135 VAC
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
NEW PARKER FLANGE KIT 5151HK-20 5151HK20
NEW LOT OF 3 LEVITON LAMP HOLDER 3ZL09
AMPHENOL 97-3106A18-1P-417 973106A181P417 10 PIN CONNECTOR NEW
NEW MAXLITE HIGHMAX HIGH POWER CFL RETRO-FIT LIGHT BULB LAMP SKO200EAWW 200 WATT
CUTLER-HAMMER C320KGS2 AUXILIARY CONTACT BREAKER NEW
MERCOID PRESSURE TEMPERATURE SWITCH DA-35-2-6 DA3526
SUPCO Condensate Pump w. Audible Alarm CP1A CP-20SB 20 GPH 115V 1PH 1.5A New
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
Surge Control LTD SPP-1204 Surge Suppressor SPP1204 New
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
Schrader Bellows Hydro-Check Cylinder MODEL UNKNOWN Rebuilt
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
RITE HITE WL-200 WHEEL-LOK RESTRAINT CONTROL BOX
3) New GE Standard Projector Bulb 43703 2000h 6200lm
HEIDENHAIN LOT OF PCB ENCODER EQUIPMENT NEW
Miller MMP Pulse GMAW Control 042727 24 VDC 0.5 A Amp 1 PH Used
EATON PRL1A 225A 225 A AMP 208Y/120V3PH 4W BREAKER PANELBOARD
Boston Gear DC-90V DC90V
SOFTRON ELECTRICAL SOUTH DRIVE ELECTRONIC DRIVE SOFT-START CONTROL
TAPESWITCH ZC-2 ZC2 ZONE CONTROLLER
YASKAWA PC BOARD JANCD-MSV01B DF9201893-A0N REV.F01 MSV01B w/ JANCD-MSV02 REV.D
Lot of 3 BEN-DEC DA2 DA-2
NEW SCOTCH 054007-10885 #35 BROWN ELECT TAPE 3/4"x 66'
4 Helwig Carbon Motor Brush 2" 1-1/2" 5/8" 13-621523
NEW REXROTH MANIFOLD SEGMENT R432013811
NEW PYREX GLASS LAB BEAKER FLASK NO. 1000 250ML 50-200 ML 150-0 ML
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
NO NAME ALUMINUM HEAT SINK 20-1/4"x 11-3/4"x 2-7/8"
NEW NO NAME ALUMINUM HEAT SINK 3"x 3-1/64"x 1-11/32"
NEW CURTIS 2311294 DISCHARGE INDICATOR
NEW DOCKWIELER DW-CAP KLAM-1.4301 P40817
AUTOMATION DIRECT AUXILIARY CONTACT GH15T22 GH-15T22
EIS ENGINEERED INSPECTION SYSTEMS MODEL# XCV 19 L XCV19L
BARBER-COLMAN 425 824.01 415V 25A
MARLEY ELECTRIC DS60 INTERNAL THERMOSTAT NEW
Cutler Hammer Breaker NE-8763 NE8763 10A 10 Amp A
Pepi Temperature Sensor CR 040+130F
GOULD SHAWMUT 60308R 600V 30A 30 A AMP FUSE HOLDER NEW
LINKSYS ETHERNET SWITCH ETHERFAST 100BASE TX 100 BASE TX 8-PORT HUB EXHUB08
Weiss Temperature Gauge w Probe 0-110*c 20-240*f
COSENSE TRANSMITTER CONTROLLER LL-1101-1121S20 LL-1101
BALDOR 27 1281 11881 1.3HP 1.3 HP 24V 2600 RPM DC ELECTRIC DRIVE MOTOR REBUILT
Wilkerson L28-03-LL00 Lubricator L2803LL00 250 PSI New
Idec ABN301-R Push Button ABN 301-R ABN301R New
NO NAME LARGE ELECTRICAL ENCLOSURE CABINET W/ ADJUSTABLE BACK PLATES 142x24x82
NEW ROBERTSHAW VIBRASWITCH VIBRATION SWITCH 366-A8 366A8 120VAC RESET
Hubbell Grounding Ball Stud Assembly CS600-2102 CS6002102 CS600 2102 New
NEW SCHUNK 301594 PROXIMITY SWITCH CABLE
NEW HUBBELL MALE TWIST LOCK PLUG 20 AMP A 20A 480V
Leistenwaechter Rechts 50259099/004 84085151 140608
ROSEMOUNT PRESSURE TRANSMITTER 1144 A0200A22 200 PSI
No Name 40B16 Sprocket 40B16 New
NEW LOT OF 2 Flexiduct Cord Cover for Window & Geist CC-4 6' FT
Deckel Dialog Controller 11 9.44216-1201 6006 04 006000
Belkin ExpandView Expand View F1D068 12vdc
TRU-Flate 18-202 Blowgun 18202 30PSI Max 1/4" Npt New
NEWPORT ELECTRONICS SERIAL PRINTER PR2201
TURCK RKM 36-2M RKM362M RKM 36 2M U5001 NEW
(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
Balluff 0527DE 122288 Inductive Proximity Switch
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
Security Door Controls EMLock 1500 Series Aluminum Electromagnetic Lock 1571 New
Lot of 3 K and B K&B NEW 692915 4204
New Foxboro Pen Lift Assembly M0100A6 Lot of 2
McMaster-Carr GP1463KGL6 6" Thermocouple Probe GP-1463-KGL-6 Type K New
NOS POWER SONIC PS-6360NB 6V 6 V VOLT SEALED RECHARGEABLE BATTERY 36AH AMP HOUR
No Name Thermocouple 18' 1385.2901 New
MERCOID 3-9107SC 3-91 MERCURY SWITCHES NEW
3M Case Sealer Belt 55" X 1 3/4" X 1/4" New
Allen Bradley Overload Relay Thermal Unit N74 Lot of 2 New
GE General Electric Light Tower SLB1ADMO SLB1ADM0
Allen Bradley End Plate 1492 1492-N16 1492N16 Style CA Series A Lot of 12 New
NEW PEPPERL & FUCHS SENSOR RELAY MPSD11HD 454465 92-132 VAC 60 HZ
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
sor Module 800-0014-00 800001400 Used
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
Stober TD27 B Traction Ring 3273 New
NEW EATON CUTLER HAMMER BREAKER ENCLOSURE FLUSH SURFACE COVER CH8BF
NEW GIBRALTAR BLACK BALL KNOB BRASS INSERT 1-3/8" DIA 3/8-16 THREAD
Ametek Power Instruments Tachometer C-891 C891 C 891
DEC DIGITAL 1GB HDD HARD DRIVE RZ26-VA RZ26VA
Reliance Electric Surge Suppressor 600686-25RR 240 VDC 5 Amp New
