A20B-0003-0742
A06B-6058-H223
A06B-0440-B214
A02B-0303-C205
——CPU与现场I/O装置或其他外部设备之间的连接部件。PLC提供了各种操作电平与驱动能力的I/O模块，以及各种用途的I/O组件供用户选用：
一般I／O模块的价格占PLC价格的一半以上。PLC的I／O模块有开关量I／O模块、模拟量I／O模块及各种特殊功能模块等。不同的I／O模块，其电路及功能也不同，直接影响PLC的应用范围和价格，应当根据实际需要加以选择。
(一)合理的结构型式
解释、功能子程序的调用管理程序和系统参数
任何PLC都具有自诊断功能，当PLC异常时应该充分利用其自诊断功能以分析故障原因。，一般当PLC发生异常时，首先请检查电源电压、PLC及I/O端子的螺丝和接插件是否松动，以及有无其他异常。然后再根据PLC基本单元上设置的各种LED的指示灯状况，以检查PLC自身和外部有无异常。
2设计的主要内容
1.电源指示（[POWER]LED指示）

Phoenix Contact übergabeeinheit FLKMS-D25 Sub/S 1-25 Connector 2294322 Interface
Honeywell Dc3200-Ce-200R-200-00000-E0-0 OEM DC3200CE200R200000
Siemens Simadyn D 6DD1640-0AC0 EM11 Version P unbenutzt OVP
CEM DT-8880 HOT WIRE ANEMOMETER AIR FLOW VELOCITY METER WITH USB INTERFACE
Siemens JD63F400 3pole 400amp max Frame only 600v circuit breaker JD New in Box!
McGill CFH 1/2 S, CAMROL? Heavy Stud Cam Follower (S17RAL)
Fanuc AC Spindle Motor A06B-0753-B302
Mitsubishi Melsec-Q QJ71PB92D PROFIBUS I/F UNIT
Honeywell 6 Sec.Dsi Use W/H/W Vlv Only OEM S87C1006
Bell & Gossett Seal Kit, Standard OEM P5001889
GE FANUC IC697 MDL750D IC697MDL750D DISCRETE LOGIC OUTPUT
THOMAS & BETTS ERG-2002 COMFORT TERMINAL CRIMPER T&B - 22- 10 AWG WIRE - B
MICRONIC SR008 UNIVO SCREW CAP RECAPPER
NEWPORT 433 LOW PROFILE LINEAR MOTION X STAGE - NO MICROMETER
Eaton Cutler Hammer DK3350W circuit breaker 3pole 350amp 1 year warranty!
Cutler Hammer Eaton DH362NRK 60amp 600v disconnect safety Nema 3R switch NEW N3R
Square D PIN100FA 100amp v 3phase 4 wire 600v bus duct busplug 1yr warranty!
EMERSON 3/4 HP MOTOR K55HXWPY-1412 (3137)A6 AP
NICHOLSON Steam Trap Repair Kit 1 1/4" (S2T)
HOFFMAN WIREWAY SEAL PLATE F-44LSGQR 19970 NEW F44LSGQR
Gould Shawmut Fuse Holder 250V, 30A 20306
Lennox LB-78349CF
AO Smith 100187875
Lennox 45J52
10M9301 - Lennox OEM Replacement Furnace Control Board
Honeywell MS8120F1002
Trane Chiller CTV Module X13650450-03 Rev F
Square D EE75T1814H Transformer NEW
Internation Fiber System IFS D1300 RS-485 2-Wire Point-to-Point Data Transceiver
Honeywell SmartDrive HVAC400-1P5-54 HVAC, IP 54 1,5 kW, 4,8 A + Keypad neuwertig
SSD Parker DC Integrator 590 Serie 590P-DRV/0165/500/0010/UK/ARM/0/230/0/AUX/0
Wago I/O 750-301 Profibus DP FMS 1,5MBd
A20B-0003-0742
Copeland Compressor 208/230V1Ph 1/3Hp 1625Rpm Mtr OEM 950-0108-00
Honeywell 2" Npt 3W 57Cv Brs Dca Prfl Bdy OEM VBN3F057.00PX
BOONTON 95109001A SENSOR DATA ADAPTER - USED
SYMBOL AP-2412-1BYL-07 SPECTRUM24 ETHERNET ACCESS POINT
3X NEWPORT FPH-S-2.5 FIBER HOLDER, 80–200 MICRON FIBER, EXTENDED
GENERAL RADIO 1432-N DECADE RESISTOR 0.1 TO 11.111 OHMS 5 DECADE BOX ~ GENRAD
Square D EGB24020 20amp 2pole 480v circuit breaker 1yr warranty!
Siemens Connecting Strap kit SQJD circuit breaker panel P5 SB1 SB3 factory NEW!
Siemens ITE BQ3B020 circuit breaker 3pole 20amp 240v warranty!
NEW Siemens 6ES7 193-4CD30-0AA0 PLC Simatic Terminal Module
TRS150R Gould Shawmut Tri-onic Time-Delay Class RK5 Fuse 150A 600V
OEM genuine Whirlpool Fanblade 1100938
NEW G21-930 Ind No 12005 CR5X370 4E305 5mfd/370 Volt Motor Run Capacitor
AO Smith 100110165
Lennox 11C88
Lennox 1113818
Lennox 52H35
AO Smith 100108476
Crestron MP-WP130-B Media Presentation Wall Plate VGA w/ Stereo Audio NIB Sealed
Siemens I-T-E Sentron Series Circuit Breaker Frame HFD63F250 225A 225 Amp Trip
Cisco 1941 Router (CISCO1941/K9)
Faulhaber Minimotor SA 3556K BLI-1-1656 Motor 3556 K BLI-1Top Zustand
Siemens 3~Permanent Servomotor 1FT5046-0AC01-1 nmax 3500/min Top TESTED
Omron OD211 CJ1W-OD211 (SL) Output UNIT neuwertig
Heil Quaker Oil Pump OEM N01Z068
Bell & Gossett 601S 1/4Hp 1Ph 1X1X5 1/4, Ldfre OEM 172701LF
NIKON 5 POSTTTION TURRET MICROSCOPE 20MM OBJECTIVE NOSEPIECE ~ FIVE B
HP 8482H POWER SENSOR 100 KHZ - 4.2 GHZ ~ AGILENT
RIFOCS 934-125 BARE FIBER ADAPTER 934 125 MICRON FC PC - BLACK
ACOPIAN 8EB30 SINGLE OUTPUT LINEAR REGULATED AC TO DC POWER MODULE 8V 0.3 A
Square D QOB220VH circuit breaker bolt on type QOB 22K AIC 2p 20amp warranty!
Siemens BQ3B080 3pole 80amp 240v circuit breaker type BQ New 1 year warranty!
Siemens ED43B125 3pole 125amp 480v circuit breaker New! 1year warranty
WB24X162 USED GE OVEN P7 CONTROL BOARD
67001669 Whirlpool Housing Water FiLefter As 67001669
Acdelco 45C1115 Steering Idler Arm Bracket 96-02 GM Savana, Chevy Express Series
Crouse Hinds Co PLG3 1" PLUG RECESSED SQUARE DRIVE Lot of 27
Lennox 91W65
AO Smith 100108901
AO Smith 100111186
Fasco A330
BASO Gas Products H19LA-1C
Lot of 2 HUBBELL 20 Amp 125 Volt 3-Wire Twist-Lock Receptacle
Appleton 1" GR-EFHC Explosion Proof GR Type 1" X 4 Way Electrical Junction Box
Eaton Cutler-Hammer HFD1020 Circuit Breaker *Excellent Condition, Free Shipping*
Fanuc I0U1 A02B-0236-C211 UNUSED UNBENUTZT
ABB Atlas Copco Servo Drive Unit 3HAB8101-14/04B DSQC345E
Fanuc aiSP 45HV A06B-6122-H045#H553 Version D 50kW 480V 100A Top Zustand
9782456 Whirlpool Display Board Asy Non Co WP9782456
Bell & Gossett Pl36-C.I. 1/6Hp 230V Circ Pump OEM 1BL006
MICRO-CONTROLE NEWPORT LINEAR TRANSLATION X STAGE
UNICOM OWS+ 2000 48 PORT CATEGORY 5 PATCH PANEL CAT5
3X ALUMINUM MOUNT FIXTURE POST FOR MOTION CONTROL & SYSTEM ASSEMBLY
10X SYMBOL 20-02713-01 ADAPTER CABLE
Siemens ITE XQ45G busplug busway bus duct plug w two 30amp cord drop L630C
A20B-0003-0742
Siemens ITE BF130 circuit breaker 1p 30amp GFI BLF NEW in box warranty !
GE SFHA36AT0250 circuit breaker 3p 225amp 600v Spectra warranty! Plug &Lugs
FEDERAL PACIFIC STARTER COIL CAT#CA101M 110V COIL ACA101M
SIEMENS 3RV1011-0DA10 STARTER MOTOR PROTECTOR (S19YT3)
general electric TH3361 30A 600V 3p3p indoor disc
NEW Joslyn Clark Conversion Kit KPMA-2 FREE SHIPPING!!!
AO Smith 100110324
Yellow Jacket 69354
Lennox 99W08
White Rodgers 1F95-1277
Lennox 64J87
Lot of 2 HUBBELL 2620 NEMA L6-30R 30 Amp 250 Volt 3-Wire Twist-Lock Receptacle
(3) SOLID COPPER 30 AMP 250 VOLT 1-POLE FUSE HOLDER BLOCK
GE THED113020 Circuit Breaker
KEB F5 00.F5.060-3100 Profibus Operator DP
SEW Movidrive MDX61B0075-5A3-4-0T Frequenzumrichter + DFI11B DIP11B DEH11B
Siemens 6SN1145-1BA02-0CA1 Ein-/Rückspeisemodul 36/47kW Version E REFURBISHED
Copel Comp R-134A Btu 972 AFE12C3E-IAA Replaced By Danfoss New Part# SC12G-1
Warrick Level Control Relay 120V OEM 16DMC1B0
CRYOGLOVES WRSWP S/8 SINGLE WATERPROOF WITH WRIST LENGTH 11-394-322
HAKKO 939-1 PROGRAMMABLE DIGITAL SOLDERING STATION TEMPERATURE LOCKOUT - E
NEWPORT 561-GB GONIOMETER MOUNTING BRACKET FOR XYZ LINEAR STAGES TOP PART
MICRO ENTERPRISES OPTISPEC MP2505 FIBER INSPECTION VIDEO MICROSCOPE POWER SUPPLY
Cutler Hammer BAB3015H 3p 240v 15amp circuit breaker New 1 year Warranty!!
Siemens ITE HED41B020 circuit breaker 1pole 20amp 277v 1 year Warranty!
Siemens GF321N 30amp 240v fusible 4wire disconnect switch nema 1 NEW!
(NEW) 24V-DC Linear Pull Solenoid Coil Plunger, - USA -
Stanley Vidmar Base Cover. Green, Model # 510034021 (Lot Of 2)
GE WASHER START SWITCH PART# WE4X743
SPORLAN 2414 NEW NO BOX
Robertshaw 700-426
AO Smith 100110110
AO Smith 100110128
Goodman B13400208S
Lennox 68K32
Lot of 2 Littlefuse KLPC 2000 Fuse, 2000A, 600V, Class L
Lot of 2 - Buss H60030-3CR 3 Pole Fuse Block Holders 30A 600V w/ fuses FRS-R-15
Lot of 6 Cyclades AlterPath (5) 106 N11803 USB VGA RJ45 KVM & (1) N11803
REFU WS 7309 Karte
Siemens 3RW4426-1BC44 AC Semiconductor Motor Starter 400V 75kW + Profibus TESTED
Siemens Simodrive 6SN1118-0DH23-0AA1 Version: A NEUWERTIG
White-Rodgers 3/4" 24V Ip Gasvalve 3098'S OEM 36C84-912
Carrier Products Inducer Motor/Housing OEM 337938-775-CBP
OMEGA 093075 DIGITAL CONDUCTANCE TEMPERATURE & PH TESTER
HP AGILENT 8510C NETWORK ANALYZER WITH 85101C DISPLAY
DAEDAL MC 2000 MOTOR CONTROLLER 1 AXIS MC2101-00 & MD3401-04 DRIVE WITH CABLE
DUNIWAY DST-531 THERMOCOUPLE VACUUM GAUGE
Cutler Hammer KD3400F 225amp 3pole 600v circuit breaker 1yr warranty!
Cutler Hammer 100amp 208y/120 main 42 circuit breaker panel board 1yr warranty
Cutler Hammer Eaton FH360040 A circuit breaker 3pole 40amp 600v 1 year warranty!
FLOWSERVE /Rep Kit X-100 2000 Dura Seal B0050701-K11
NEW Ridgid 86127 | 118 Automatic Feed Cutter 1/4" - 1 1/8" (6mm-28mm)
InSinkErator Garbage Disposal Sink Drain Adapter Locking Flange Badger Erator
1996 1997 1998 1999 Subaru OUTBACK Legacy Alternator Generator OEM 23700AA34A
AO Smith 100110727
Field Controls SWG-5S (46395402) 5" Stainless Steel Power Venter 290,000 BTU
Lennox 21A02
AO Smith 100110109
Lennox 70W87
ACME INDUSTRIAL CONTROL TRANSFORMER TA-83213
Buss Distribution Block 16220-3
Siemens Size 00 Starter 14BU?32A*
Yaskawa Frequency inverters CIMR-VCBA0002HAA-0080 0,37kw 0,25kW Unbenutzt OVP
ABB 3HAA3563-ARA Backplane Top Zustand
ifm electronic 02D224 Erkennungssensor + Halterung 02DIRPKG/K Top Zustand
Carrier Products 460V-1Ph 1/2Hp 1050/875Rpm Mtr OEM HC44GE461
Powers-Siemens Bldg Tech 0-10Vdc/4-20Ma Sr 24V (274) OEM SKD62U
AVID MERIDIEN EDC 0030-03021-01 PCI SINGLE DISPLAY CARD 0870-00364-04 # 4344
AGILENT 54622D MIXED SIGNAL OSCILLOSCOPE 100 MHZ 200 MSA/S ~ HP KEYSIGHT
PROCON CO1607X HV SS STD PUMP 80 GAL 150 PSI. /W,R
A20B-0003-0742
DAGE BT22-LC30 WIRE PULL LOAD CARTRIDGE 500 GRAM BOND TEST
GE TFJ236125 3pole 125amp 600v circuit breaker 1year Warranty!
GE 1200amp SKHA36AT1200 circuit breaker 600v New in box 1year warranty!
Square D HJA36035 3pole 35amp 600v Iline circuit breaker new warranty!
GENERAL ELECTRIC HOTPOINT Washer Rotary Switch 175D2314P002 WH12X10498 AP5272299
Taylor 9848EFDA 200-400°F Waterproof Instant Read Thermometer
TURCK NI25-G47-RZ3X INDUCTIVE PROXIMITY SENSOR DISTANCE 25mm DEMENSION 70mm NIB
Allen Bradley W41 NSFP **GENUINE** AB W 41
Honeywell RM7890A1015
ASCO Power Technologies 8214G236
AO Smith 100110221
Lennox 28M01
AO Smith 100111275
VALERE POWER V1250A-VV POWER SUPPLY
COOPER NEMA L6-20R 20A 250V Twist Hart-Lock Locking Receptacle
Lot of 8 New NETAPP X800-42U-R6 USPP X80042UR6
SEW Movidrive Umrichter MDS60A0300-503-4-0T 30Kw 400V Top Zustand
Control Techniques UD51 ISS3 2ND Encoder Option Module
B&R Panel 5D5200.18 5C5001.32 IPC5000 Panel PC Touch Panel Top Zustand
Honeywell 1 1/4" High Press Body OEM V5055D1016
Carrier Products Scroll Protection Module Board OEM 30RB660057
3X CPS CLARK POWER SYSTEMS PS-1-30I 120V 30A POWER BLOCK
NEWPORT LP-05-XY XY LENS POSTTTIONER 0.5 IN. (12.7 MM) DIAMETER
NATIONAL INSTRUMENTS ER-16 183064B-02 MODULE ASSEMBLY NI
SMC NCY2B10H-0800 RODLESS CYLINDER, 3/8" BORE, 10" STROKE, 100PSI MAX 10.5" POST
Square D KCP34125MT 3pole 12amp 480v KC type panel circuit breaker 1yr warranty!
Square D QOB3125VH circuit breaker 3pole 125amp 240v 1year Warranty!
Square D FA34015 3pole 15amp 480v circuit breaker New in box warranty! free ship
Honeywell 623-30 Model 623-3095 Status Display Unit
WB24X162 USED GE OVEN P7 CONTROL BOARD
NEW NTN 6203-LLBC3/5C RUBBER SEALED BALL BEARING
Ingersoll Rand Pneumatic Limit Valve 402-A
AO Smith 100112215
Lennox 18W68
Armstrong 15C75
Lennox 10U26
Lennox Healthy Climate PureAir Maintenance Kit (Cat#X8348), MERV 11 for PCO-20C
Cisco GSR12-BLOWER GSR 12012 12-Slot Blower 800-02183-01
Lot of 2 HUBBELL 2620 NEMA L6-30R 30 Amp 250 Volt 3-Wire Twist-Lock Receptacle
3M 2200 Moisture Sealant Pad, 4.5" X 6.5" X 1.25" BOX OF 10
SEW Eurodrive MCF41A0015-5A3-4-00 Movidrive + Profibus Neuwertig
Schneider Automation DTA 200 / AS-HDTA-200 Primary Subrack 5 Slots
Siemens Ascom 77-715-0 Power Supply 6EW1890-5BA 6FC5114-0AA01-0AA0 Version B
Powers-Siemens Bldg Tech 7/8" Hot Gas Bypass 5.0Cv 24V OEM M3FB20LX/A
Square D 480V 10A Pressure Switch OEM 9012GGW24-S216
4x HUMPHREY HTSC 1855 PNEUMATIC FLOW CONTROL VALVE
TESCOM 64-2642KRU10 REGULATOR 0-100 PSIG 1/4" VCR
KF50 KF25 KF50 STAINLESS STEEL TEE 3" ~ KF 50 KF 25
UNIT INSTRUMENTS UFC-1000 MASS FLOW CONTROLLER HE GEH4 MFC 200 SCCM
Square D MAP36450 450amp 600v 3pole circuit breaker 1year Warranty!
GE TJK436F000 400amp trip circuit breaker frame warranty!
Square D LA36400 circuit breaker Iline 3pole 400amp 600v 1year Warranty!
Square D QOB120PL5393 circuit breaker 120V 20A
WHIRLPOOL Kenmore DRYER Door Hinge Spring CABLE 230131
Vollrath 30313 Super Pan V S/S 1/3 Size x 1.25" D Food Pan
Crouse Hinds Co PLG3 1" PLUG RECESSED SQUARE DRIVE Lot of 27
A20B-0003-0742
Suntec B2TA8852
Lennox 15C90
Lennox X5867
Reznor 196245
Lennox A2CWKT02M-1
Lot of 10 COOPER HART-LOCK 20AMP 125VOLT NEMA L5-20 3-WIRE TWIST LOCK RECEPTACLE
Lot of 10 Check Video CV151 High Defintion outdoor mini dome Security Cameras
Reznor Products 24V 10" Wc Lp 1/2" X3/4" Gasvlv OEM 96303
2x STEEL & O'BRIEN MANUFACTURING 3.5" OAL 1.5" LONG SF20686 GVC STAINLESS STEEL
Gould 400 Amp, 3 Pole Fuse Block 66263 Used
Lot of 9 Linksys Cisco (4) SD2008 8-Port , (3) SD2005 , (2) EZXS88W W/ 7 ac adap
Snom 821 12-Line Color Display Black VOIP Office Telephone
Allied Telesyn AT-2701FX Fiber PCI Network Card new surplus opened
Square D 600A 40A 3P Iec Motor Starter OEM GV3P40
TA INSTRUMENTS DSC 2920 MODULATED DSC V3.2A
lot of 3 Square D QOB330 3pole 30amp QOB circuit breaker NEW Warranty!
SCHRADER BELLOWS 1603-5552 4-27-81
INTERNATIONAL COMFORT PRODUCTS 1164280
Parker Regelventil D1FPE02HC9NB00 D1FPE02HC9NB0035 Ventil/unbenutzt/OVP
Honeywell Microamp Scale Only Meter OEM 138166
(19) RSA SecureID Authenticator NETWORK ACCESS SECURITY SID700 Exp: 09/30/21
Lot of 8 APC SurgeArrest NET9RM 9-Outlet 120V 15A Rack Mountable PDU
Used Kidde Pressure Operated Switch 3PDT / 873752
EMERSON CLIMATE TECHNOLOGIES 514-1239-22- BRAND NEW IN BOX
Allen Bradley 800T-N37 Ser P Potentiometer 300VAC 2 Watts Used
Hubbell HBL26CM23 Twisk Lock Plug Connector *FREE SHIPPING*
FURNAS WJ1944 DRUM SWITCH NEW
Square D 9070T100D14 Industrial control transformer New !
GE SG600R 600amp 600v spectra circuit breaker nema 3R enclosure N3R NEW!
ADEPT TECHNOLOGIES 90400-30023 XY-HRS023-S101AD LINEAR MOTION STAGE NSK
Cisco Catalyst 2900 Series XL WS-C2924-XL-EN 24 Port Switch #2
CROWN COM-TECH 210 WITH PIP2 PROGRAMMABLE INPUT PROCESSOR
AMP 69963-D HAND CRIMPING TOOL 12 - 24 AWG
PROFILE POL 8000 DWDM POLARIZATION CONTROL BOX POL8000 ~ THORLABS
CISCO3745 ACCESS ROUTER DUAL PWR w/ rack mounts