1756-OW16IA1756-OW16IA
PLC的外部設備主要是指控制系統中的輸入輸出設備，其中輸人設備是對系統發出各種控制信號的主令電器，在編寫控制程序時必須注意外部輸入設備使用的是常開還是常閉觸點，并以此為基礎進行程序編制。否則易出現控制錯誤。
在PLC內部存儲器中有于輸入狀態存儲的輸入繼電器區，各輸入設備（開關、按鈕、行程開關或傳感器信號）的狀態經由輸入接口電路存儲在該區域內，每個輸入繼電器可存儲一個輸入設備狀態。PLC中使用的"繼電器"并非實體繼電器，而是"軟繼電器"，可提供無數個常開、常閉觸點用于編程。每個"軟繼電器"僅對應PLC存儲單元中的一位（bit），該位狀態為"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都動作。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備相，其"線圈"狀態只能由外部輸入信號驅動。
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鄭娟萍
廈門仲鑫航自動化設備有限公司
PLC的各種功能主要是通過運行控制程序來實現。編制程序時，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）。位元件實際上是PLC內存區域所提供的一個二進制位單元，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、內部通用繼電器Rn、定時（計數）器等，其參與控制的方式主要是通過對應觸點的通斷狀態改變影響邏輯運算結果即輸出。
字元件則為PLC內存區域內的一個字單元（16bit），主要用作功能指令和高級指令的編程元件，通常用以存放數據，如數據寄存器DTn，定時(計數)器的設定值SVn、經過值EVn等。字元件沒有觸點，通常以整體內容參與控制。
NUDING COOLING CONTROL CABINET FAN 7296 16BAR 16 BAR 140 DEG C
Sprecher + Schuh Auxiliary Contact CT 3K-P-10 CT3KP10 380 Volt 600VAC 4 Amp New
MCNAUGHTON MCKAY 51A-FL3 YELLOW CABLE WIRE CORD 100'
STRANDBERG 2352 D.C. SERVO AMPLIFIER RECORDER CARD
NEW TCI LINE REACTOR KLR3BTB 3PH 3 PH SINE GUARD 600 V
emecanique Nautilus XMLBS10A2S11 XLM-BS1A2S11 NEW
AIR MONITOR CORP VEL-TRON VEL-TROL FLOW TRANSMITTER 13000AZ 13000-AZ FT-50
PRO-LOG COUNTER/ TIMER CARD PWB-114099-004 PWB114099004 7308B-01 7308B01
edyne Hastings Mass Flow Transducer HS-10M w. Laminar Flow Element L-5M-S New
Cattron RF Modem CAT-9610 CAT9610HDM RS-232 12-24VDC
NEW SPECTROL PRECISION POTENTIOMETER MODEL 860 10KΩ OHMS 25%
No Name Connector Cable 3HAC 14525-1 3HAC145251 Used
No Name Connector Cable 3HAC 14533-1 3HAC145331 Used
New Philips Light Bulb Lot of 3 S6/10 10W 10 Watt 230V
4 NO NAME MMC846P 7440 SIMICONDUCTOR CHIPS DIODES NEW
Malaysia Semiconductor BI HM00-00761 Lot of 25 New
NEW Taylor Instruments Recorder Lever Part 37S165 Lot 6
INTERTRON INDUSTRIES INC III SCR MODULE HEAT EXCHANGER 600A 082870-4-1 08287041
Turck Cable Potted Sensor Ni4-Q12-RN6X Ni4Q12RN6X Used
NIMBUS PSU POWER SUPPLY 12V 4A NML-868 NML868
Bourns Potentiometer 3339P-503 3339P503 3339P-1-503 50K
GE Overload Thermal Heater Coil C078A Lot of 3 New
NEW NO NAME CONDENSER FAN BLADE 8RT609 4 BLADE 3/8" ID 12" OD
NEW LOT OF 27 THOMAS & BETTS T&B HUB CONNECTOR 371 3/4" BULLET
PARKER 2-AXIS MOTION CONTROLLER COMPUMOTOR 6270 6270-R 6270R
Vectrol Controller 12-749340-02 1274934002 9028-315 New
Reliance Electric Thyristor Rectifier Assembly 86475-11R 8647511R Used
REVERE TRANSDUCERS 5103-B6-60K-30F1 DOUBLE BEAM LOAD CELL 3.0mV/V @ 60,000LBS
GE GENERAL ELECTRIC STEP VOLTAGE REGULATOR CONTROL GE-2011C 8105F201G04
ROSEMOUNT 1151LT4SC4F23DT0998 PRESSURE TRANSMITTER 0-1092 MM WC MAX. WP 275 PSI
Reliance Electric Calibration Board 100859-42R 0-48652 Used
BARBER COLMAN TA-1101 ROOM THERMOSTAT 2 POS. SPST NIB
MANETEK 1130-93-500-K HID BALLAST REPLACEMENT KIT NIB
WEKSLER L0T2PO 0/100 0/0 RH 0/100F HUMIDITY CHART RECORDER USES W100-0-10
SIEMENS 5 SQ 22-C4 CIRCUIT BREAKER 2-POLE 400 VOLT 5SQ22C4 4 AMP A 4A
Western I/O Relay Module 1781-IB5Q 30 VDC 50mA Used
Timco Time Delay Relay 591-14NT 59114NT 115 Volt .1-20 Sec Used
RIETER TEMP HEATING CONTROLLER 1850 679 1850679 NEW
KARL KLEIN BLOWER DUCT FAN DNG6-35/S15 4-1/2 X 4-7/8"
NEW LOT OF 5 HUBBELL I-STATION WALL FACE PLATE IFP16W 1 GANG 6 PORT WHITE
RIETER TEXINVERT 220/12-S2 1850 510/2 1850510/2
RIETER TEXINVERT 220/12-A2 1850 506/2 1850506/2
NO NAME TEMPERATURE SWITCH SP-444-48 SP44448 5300-32K 30A 30 A AMP 277 VAC
NEW LOT OF 2 NO NAME S/S STAINLESS STEEL 45° BUTT WELD ELBOW 1002345100 1" OD
COPELAND 1997 ZR67KC-PFV-230 ZR67KCPFV230 208-230V 1PH 129 LRA COMPLIANT SCROLL
NEW SWAGELOK VCR FITTING SS-12-VCR-3-12MTW 3/4" SS12VCR312MTW
Guardimark Guarditron Electronic Presence Sensor S-7020-12-2 S7020122 Used
NIMBUS LAMINAR LAMARFLO CLEAN AIR CLEANROOM FILTER FILTRATION 73010 240V
GE Fanuc I/O Bus Series 90-70 Genius Controller Module IC697BEM731C Broken Door
Aro Plunger Part 90297 New
DOLAN JENNER SAFESCAN 9 LIGHT CURTAIN BAR 36" RECEIVER SS950-360000
WOHNER BUS BAR BUSBAR DISCONNECT SWITCH 160A 160 AMP A 43620 12W LTS-00/60
Cleveland Steam Control SC-H-D1 SCHD1 SC-H-01 230 VAC New
NEW Red Lion Plug In Speed Switch PRS11022
RELIANCE ELECTRIC 610293-8A 707312-1R COMMUNICATIONS CARD ADAPTER PASSIVE TAP
(BOX 10) RADION 222 MINIATURE LAMP NEW
Conductix Wampfler Saga Remote Control Receiver SAGA1-K1 Used
ALLEN BRADLEY 1336S-BRF50-AN-EN-HAP-L6 SER A CONTROLLER
GE R.P. BALLAST ASSEMBLY C250P504 150W HPS 480V NIB
AGY AGYA CIRCUIT BOARD CARD S5I01 S5IO1
NEW RELIANCE CONTACT KIT K-352 K352
New Tilt Cycle Mounting Pin 2I5765 Made In USA Lot of 2
CUSTOM CONNECTOR SOCKET RB11-PC 10A A AMP 600V VOLT 11 PIN RB11PC
ASHLAND CHEMICAL DREW CONTROL TRAKSET 200 TRAKSET200
Omron Safety Controller G9SP-N10D G9SPN10D 24 VDC Used
NEW LOT OF 12 BIZ LINE ZINC DUPLEX CONNECTOR BZL2611 3/8" 1/2"KO
NEW LOT OF 2 LEVITON FEMALE SINGLE RECEPTACLE L5-15 L515 15 AMP A 15A 125V
Eltherm EF20050 Heater ELW-HS-Sp 5M 1125W 230V
MCGRAW EDISON LEVEL CONTROLLER CONTACTOR RH-1 RH1 8311
ISLATROL FILTER ACTIVE TRACKING I-3-415 DELTA 480 VAC 3 PHASE 15 A AMP
DODGE SER. D 025623 DBS MOTOR BRAKE 208-230/460 VAC NIB
HBM INC Load Cell BLC-1.25K-10531 2.5K 2500lb Capacity New
New CTS Potentiometer D-18370 P 1K Type 320 R100 Ohm
NEW LOT OF 2 NO NAME VACUUM SUCTION CUP B15-2 B152 MALE 15 MM 3/16" NPT
NEW PEPPERL & FUCHS PROXIMITY SENSOR CJ10-30GK-WO CJ1030GKWO 20-253 VAC
Allen Bradley Input Module 1746-IV16 1746IV16 Series C 10-30 VDC Used
Moore Enhanced Analog Module EAM Marshalled Termination 16190-1-3 1619013 Used
NEW APPLETON FLEX FLEXIBLE COUPLING EXLK218 3/4"NPT 21"OAL
EMECANIQUE XU5-M18MB230 PROXIMITY SWITCH 240V NIB
New Allen Bradley Terminator Cap WC-1-0 SI10 759 9944
(66) WAGO 232-136 TERMINAL BLOCK 232136 250V 12A
GENERAL ELECTRIC TRANSFORMER 9T51B0013 3.00 KVA 1 PH TYPE: QB 240/480 V
Fireye Flame Monitor Chassis Display EPD 160 EPD160 Used
BURR-BROWN MICRO TERMINAL TM 4500 TM4500-100 TM4500100
Toshiba EX14B Programmable Controller EX14B-1MARB1 EX14B1MARB1 100-120 VAC New
MALAYSIA AM27C256-120DC AM27C256120DC EPROM CHIP NEW
LINEMASTER 591EX EXPLOSION PROOF FOOT SWITCH 591-EX NEW
JOHNSON CONTROLS PRESSURE SWITCH P-7230-12 P7230 NEW
EMECANIQUE FLASHING LIGHT AMBER STROBE XVA L1401445
TEMPOSONICS LDT POSITION SENSING 7" STROKE 3200300 NEW
Dahl Transmitter System P290 P/E NW Rack
NEW VEEDER ROOT 743895-416 ELECTRIC COUNTER 743895416
emecanique Start Button XAG.A O1 New
NEW BRYANT FEMALE SINGLE PLUG RECEPTACLE 5361L 2 POLE 2P 3 WIRE 3W
Malaysia Semiconductor HM00-95561 HM0095561 Lot of 25 New
NEW HeliCoil Thread Repair Insertin Tool 7551-8 1/2-13
SQUARE D 90011-237 400A 400 A AMP 277/480V 3PH 74" X 27" X 7" BREAKER PANELBOARD
(2) General Electric GE Heater Element C097A Lot of Two New
NEW Allen Bradley 1492-N4 SER.A MARKING STRIP FOR TERMINAL BLOCK
Milltronics Airanger DPL ML 5101594 ML 5101593 Used
New Clarostat Potentiometer 58C1 58C1-1 4 Watt 625-7910
Baco Cam Switch PR 25 PR25 25A 25 A Amp 600 VAC 20 HP 3 PH New in Box
Joslyn Clark Contactor 7000-7030-11 7000703011 240/500 VDC 40/10 A Amp New
NEW STI IRU-2005 LEVEL SENSOR IRU2005 P/N 125285
NEW BALLUFF PHOTOELECTRIC SENSOR BOS 18KW-PA-1QC-S4-C BOS18KWPA1QCS4C
SEMIKRON SEMIPAK THYRISTOR BLOCK 45A SKKD 46/14 SKKD46
SQUARE D SY/MAX REMOTE INTERFACE 8030 CRM-220 X CRM220 CRM-220X Series F
GENERAL ELECTRIC GE OUTPUT MODULE IC600YB904B 115V
Set of 2 Hotset Heating Element M05 161961 230V New
LOT OF 3 BUSSMANN 60A FWH 60 SEMICONDUCTOR FUSE FWH60 60 A Amp 500V
SIEMENS CONTACTOR 3TF4022-0A 3TF40220A 9A 600V 24V Coil
Gira Signal Light Cover and Frame E 14 E14 160 30 16030 New
Allen Bradley Selector Switch 800E-HM21 800EHM21 Series B New
Rittal Busbar Component Adapter SV3540 50A 50 A Amp 690 Volt Used
New Siemens Line Side Feeder 3VU9135-1AB04 3VU91351AB04
ALLEN BRADLEY MTR AB-123396 REV.02 120VAC 1PH NEW
NEW SICK OPTIK CABLE PHOTSWITCH 3M L 6 PIN PLUG 2009478
NEW WESTINGHOUSE 966478 MW OVERLOAD RELAY HEATER A03.0 LOT OF 2
Tempco Thermocouple M99 17 HDM00244 100W 240V M9917
ICEL Capacitor PMB 1200V P1 PMB1200VP1 1.0 uF 10% Used
Fanuc 10 Slot Base ABU10A A03B-0807-C001 Used
GE Fanuc Output Module IC610MDL175A 115 VAC Used
LOT OF 2 SIEMENS SURGE SUPPRESSOR 3TX4490-3A 3TX44903A - USED
ICEL Capacitor PMB 1200V R5 PMB1200VR5 1.0 uF 10% Used
SQUARE D POWER SUPPLY CABLE CLASS 8030 TYPE CC-10 SERIES F 8030CC10
Opto 22 I/O Module ODC5Q Lot of 2 Used
Lot of 25 IMO Chain Offset Links #50 30246 New
ALLEN BRADLEY VERSAVIEW 700R VERSA VIEW INDUSTRIAL COMPUTER 6155R-7P2KH SER A
NO NAME ALUMINUM HEAT SINK 3-13/32"x 3-5/32"x 1-27/32" NEW
DIVELBISS ICM-IO-1 ICMIO1 BEAR BONES EXPANDER CIRC BRD. K3590 PCICMPICIO88 REV C
Weidmuller Fusible Terminal Block SAKS 4/35 SAKS435 16A 16 A Amp Lot of 5 Used
IR INGERSOLL RAND 2" NPT S2H2385 DBA S2H SERIES BI-LOBE BARESHAFT BLOWER REBUILT
CARRIER HH93AZ174 SUBBASE FOR THERMOSTAT NEW
NEW NO NAME WATERTIGHT CONDUIT HUB KIT WH-3 1" NPT MALE / FEMALE
Banner Model B5 Photoelectric Amplifier Module W/ Model TRB & KRPA-11DN-12
Amphenol Cable Clamp 97-3057-1004-1 97305710041 New
STI miniSafe-B Light Curtain Receiver MS4312B Used Missing Mounting Brackets
SAIA UBD23U08LMZ1 1200/PH 12VDC 2V UBD23U08LMZ1 NEW
NEW DYNAPAR HR62501000001 3/8" SHAFT FLANGE ENCODER 5-26V SD MT HR 62501000001
NEW TRI-TRONICS FIBER OPTIC MODE SENSOR UCFR-A UCFRA
OMEGA 4002JC 0-500C DIGITAL TEMPERATURE CONTROLLER 7/5A
Mori Seiki Pillow Ball Bearing S18005A03 NB5 New
IFM EFECTOR PROX SWITCH IFB3002-BPKG w/ S/S 1/2 VALVE
CUSTOM CONTROL SENSORS 610G2 DUAL-SNAP PRESSURE SWITCH 1000PSIG
Allen Bradley 440N-C02070 GuardMaster Switch 440NC02070
Johnson Controls Heavy Duty Line Voltage Thermostat T26T-3C T26T3C 40-90oF New
NEW FERGUSON ENTERPRISES SD HANDGUN MEDIUM FOOT 754451-1 502-001-138
ALLEN BRADLEY DISCONNECT SWITCH 194R-NN030P3 SER B 194RNN030P3 - USED
Sensor Techniques Limited MI 4000
Uniroyal Timing Pulley TL26H150 2012 TL26H1502012 TL26H150 New
19 Teron LED Flex Exit String Light Lamp FT10-M FT-10
PRX Thyristor Module LD431650 M1216 FF 2222 M1216FF2222 Used
VERSA 5 WAY AIR VALVE VJJ-5733 VJJ5733
Balogh Transceiver/Sensor G8630P085 ER085U/QC Used
Ingersoll Rand ARO Fluid Power Valve A213PS New
EUROTHERM INTERNATIONAL 320 CHESSELL CHART RECORDER 3026
NEW LOT OF 10 CEC MINIATURE LIGHT LAMP BULB 3S6/5/120V 120V 3W
MACROMATIC SS-51622-10B Relay SS5162210B 120Vac 6-180Sec 10Amp 11Pin
Atlas Copco Transducer 1000.C 942015
NEW GRAINGER VIBRATION ISOLATOR 2NPF7
HONEYWELL TEMPERATURE CONTROLLER TEMP CONTROL DC3004-0-000-2-E DIN-0111
WIKA PRESSURE GAUGE 1424=0124 111-11-53-1500 0-10000KPA 0-1500PSI 1/4"NPT 2"FACE
LOT OF 2 METTLER TOLEDO ANALOG I/O PLATE ASSB 14162300A
New 7 Eprom A1/2T 10B MCP 1850 297/1 28 pin
Future Designs Process Controller FDC-4100 FDC4100 250 VAC 12VA 12 VA Used
CUTLER HAMMER HS 576077 225A 225 A AMP 208/120V 3PH 4W BREAKER PANELBOARD
ELECTRONIC CONTROL BUSTO ARSIZIO AZSC AZSC-97 4375 AZSC974375
BURNS 148 239 148239 36" X 1/4" 1/2" NPT THERMOCOUPLE TEMPERATURE PROBE
NEW Scully Optic Sensor 2 Wire Optic Probe 7" Length SP-TO 09409 SPTO SP TO
GE Overload Thermal Unit Heating Element CR123C137B C137B Lot of 3 New
GE General Electric Relay Socket CR420KA3 10A 10 A Amp 300V New
NEW C3 CONTROLS W22RMVDLR IEC 22mm PILOT MODULE 20-240V 09.06.30 RMVLED1RD
NEW CARRIER United Tech CEAS420874-01 CEFA121198-04
EMECANIQUE CIRCUIT BREAKER PROTECTOR GB2-CD16 10 AMP A 10A 1 POLE GB2CD16
NEW OZ GEDNEY UNIVERSAL GROUND CLAMP G-200G G200G 1-1/4"-2" 1.660-2.375
LOT OF 2 WESTINGHOUSE CAPACITOR 632C899G01 14.6MFD 350VAc
SSD 546.0180.4.8.1.010.1010.0.00 DRIVE 5460180481
NEW LOT OF 9 HORIZON CANDLE BASE EXIT LAMP LIGHT BULB 15T6/CL/145V T6 CLEAR
GE Relay Magnetic CR124Y0A2814A Series A 72A 72 A Amp 600 VAC/DC New
GOULD MODICON B373 0-10VDC ANALOG INPUT MODULE USED
NO BRAND CIRCUIT BOARD CARD 21129-2 211292 5110K-2
New Nissin High Voltage Module Inverter Stack TRS-150
LORENTZEN & WETTRE CIRCUIT BOARD CARD DC/DC AL300 30001965 30001966
POWER PAC POWER SUPPLY 2034-000-91 105-125V 2.1A
IFM Efector 200 OG0014 OGT-HBOA Photoelectric Sensor OG0014OGTHBOA New
NEW WA ALLOY TIG WELDING ROD ER309L AWS A5.9 3/32" 36" 12.5LBS LOT OF 171
New Ohmite Potentiometer CMU7511 Type AB 750 Ohms
6 Sprecher+Schuh S&S Terminal Block VRE3-25 VRE 3-25
New Electro-Mech Switch 07150 44A393658-012
Hornel Dr. E. Horn GmbH EV002120/7-1220-206 Power Pack
Hornel Dr. E. Horn GmbH EV002120/7-1220-212 Power Pack
SIEMENS 3TF4111-0B CONTACTOR 3TF41110B 24V
