福建中立恒自动化设备有限公司

1．输入/输出单元

输入/输出单元通常也称I/O单元或I/O模块，是PLC与工业生产现场之间的连接部件。

PLC通过输入接口可以检测被控对象的各种数据，以这些数据作为PLC对被控制对象进行控制的依据；同时PLC又通过输出接口将处理结果送给被控制对象，以实现控制目的。

由于外部输入设备和输出设备所需的信号电平是多种多样的，而PLC内部CPU的处理的信息只能是标准电平，所以I/O接口要实现这种转换。

I/O接口一般都具有光电隔离和滤波功能，以提高PLC的抗干扰能力。另外，I/O接口上通常还有状态指示，工作状况直观，便于维护。

PLC提供了多种操作电平和驱动能力的I/O接口，有各种各样功能的I/O接口供用户选用。I/O接口的主要类型有：数字量（开关量）输入、数字量（开关量）输出、模拟量输入、模拟量输出等。

常用的开关量输入接口按其使用的电源不同有三种类型：直流输入接口、交流输入接口和交/直流输入接口。

常用的开关量输出接口按输出开关器件不同有三种类型：是继电器输出、晶体管输出和双向晶闸管输出。

继电器输出接口可驱动交流或直流负载，但其响应时间长，动作频率低；而晶体管输出和双向晶闸管输出接口的响应速度快，动作频率高，但前者只能用于驱动直流负载，后者只能用于交流负载。

PLC的I/O接口所能接受的输入信号个数和输出信号个数称为PLC输入/输出（I/O）点数。I/O点数是选择PLC的重要依据之一。当系统的I/O点数不够时，可通过PLC的I/O扩展接口对系统进行扩展。

2．通信接口

PLC配有各种通信接口，这些通信接口一般都带有通信处理器。

PLC通过这些通信接口可与监视器、打印机、其它PLC、计算机等设备实现通信。

PLC与打印机连接，可将过程信息、系统参数等输出打印；与监视器连接，可将控制过程图像显示出来；与其它PLC连接，可组成多机系统或连成网络，实现更大规模控制。

与计算机连接，可组成多级分布式控制系统，实现控制与管理相结合。远程I/O系统也必须配备相应的通信接口模块。

3．智能接口模块

智能接口模块是一独立的计算机系统，它有自己的CPU、系统程序、存储器以及与PLC系统总线相连的接口。

它作为PLC系统的一个模块，通过总线与PLC相连，进行数据交换，并在PLC的协调管理下独立地进行工作。

PLC的智能接口模块种类很多，如：高速计数模块、闭环控制模块、运动控制模块、中断控制模块等。

Merlin Gerin 29034 Compact Circuit Breaker Trip it TM25D 25A 3P3D

Merlin Gerin 29035 Compact Circuit Breaker Trip it TM16D 16A 3P3D

Merlin Gerin 31432 Compact Circuit Breaker Trip it TM160D 160A 3P3D

Merlin Gerin 30500 Compact Circuit Breaker Trip it MA150D 150A 3P3D

Emerson 061964 BAE5 HCA Valve Thermal Extension 5 Tons 1/4" ODF R0611

Emerson 061964 BAE5 HCA Valve Thermal Extension 5 Tons 1/4" ODF excl plate

GEC TMF400A HRC Fuse Link 400VAC 40kA 460VDC 80kA  Class gG

Clipsal Surface Switch 56SW363 1 Gang 3 Pole 3 Phase 63A 500V IP66 Grey

Panasonic CZ-CAPE2 Solenoid Valve Controller PCB Circuit Board

GE Cooper Bussmann TKM250A Fuse Link Type gG 80kA 660Vac 40kA 460Vdc

Eaton Moeller P1-32/I2/SVB Disconnect Cam Switch 32A On 3 Pole

80 Series Landcruiser Swivel Hub Rebuild Kit fits Toyota

Square D SY/MAX 8030-RIM-101 Input Module 16 Inputs 120VAC/DC 1

NHP Din-T10-C2 MCB DC 6kA 1 Pole 6A C Curve 240-415VAC 48VDC IP40  x10

NHP Din-T-DC-C4 MCB DC 6kA 1 Pole 4A C Curve 240-415VAC 48VDC IP40  x14

Pall HC9600FCN16H  Filter Element Coralon Dated 03/2019

TURNFLO WOG 1000 PSI Ball Valve 1 inch 25mm DN 25 2-Way 3-P Body SS316

Clipsal 56C410 Switch Socket Outlet 4 Pin Rod 10A 500VAC Combo 56 Series

GE IC200PWBB00PWB001J Power Supply Booster Carrier PLC

Earth Tags CCG 20mm 25mm 32mm 40mm ALCET 50 mm x132

Toshiba RAS AC1210 Remote Adapter Card AC CN22 External On Input Status Out

Flexovit 1935625 Metal Cutting Wheel 356 x 3 x 25.4mm x 5 Disc

Telemecanique LR2 D1307 Thermal Overload Relay 1.6A-2.5A 023256

Weidmuller UR20-16DO-P U-Remote I/O Module Digital 16-Channel 1315250000

Telemecanique X52M18MA230 Inductive Proximity Switch

VENTURE 450W/BU/EL/UVS/PS/740 Pulse Start Metal Halide MP Mogul Base Clear x2

Zumtobel DALI-BV2 Power Supply Bus System 230/240VAC 3A 6W 22169941 DALI

Siemens 3TY7 440-0A Contact Element for 3TF44

EATON Cutler-Hammer 8869K9 Toggle Switch MS21353-331 Miniature Positive Action

Weidmüller WTR2.5 Terminal Disconnect 2.5mm2 500V 24A No STB DE x37

Weidmüller WTR2.5  Din Rail Terminal 2.5mm2 800V 24A Dark Beige  x31

SprecherSchuh CS7-31E Control Relay 3xNO 1xNC 240V50HZ/277V60HZ Coil

Swagelok SS-1610-3 Stainless Steel Tube Fitting ion Elbow 1 inch Tube OD

Baumer MEX5D60D24 MEX5-D60.D24 Hydraulic Pressure Gauge 1/2NPT 0-1600KPa ∅100mm

ASCO HT 8345G1 Solenoid Valve Red Hat II 11.6W 120V DC 1/4 Inch  70-700 kPa

SprecherSchuh D7 Series Stop Pushbutton Station Gray Heavy Duty

LOWARA QSM/03 108124810 Pump Control  Single Phase 240V 3.6A IP44

LOWARA QSM/05 108124820 Pump Control  Single Phase 240V 4.5A IP44

LOWARA QSM/07 108124830 Pump Control  Single Phase 240V 6.5A IP44

LOWARA QSM/11 108124840 Pump Control  Single Phase 240V 8.2A IP44

NHP ISOPS550P Plug Straight Top 5 Pin Rod Pins 3 Phase 50A 500V AC 50 Amp

EYE SLUX ACE NH940FLX 940W E40Z High Pressure Sodium BT180 Bulb Coated

CLIPSAL 4CB316D10 Miniature Circuit Breaker MCB 3 Module 3 Pole 16A 10kA D-Curve

VISA Valve 1/2 Inch 105 Body A105N Safety Check Gate Valve Forged Steel 420

SKF 30218J2 Tapered Roller Bearing Single Row (paired metric)

GEC Alsthom Fuse Link TM355L Type gG 355A 80kA 415V AC x3

NARVA 57138 50-12 Copper Lug 50mm² 12mm Stud Bell Mouth End x48

Telemecanique LR2D1314 Thermal Overload Relay 7-10A 023260

Telemecanique LR2 D1316 Thermal Overload Relay 9-13A 023261

ERICO CADWELD PBHVT20P100A1M Graphite Welding Mould Steel Stud to Rail IPP 7509

CCG 5 A2 50 BS Compression Gland for Flexible Cable 053505 Locknut  Seal x2

Thorn Leopard 96233792 Bulkhead Luminaire Low Energy Rod 28W Fixture and lamp

Stylus 632281C Cadet Double Towel Rail Chrome Aluminium x2

Miller Honeywell SkyGrip SGW Kit SGCT 17D-1 Carabiner Clamp Thimble Cable Clip

CCG Posifit 2 4 Way Angle  Ex DIP Atex 7.7W 550V IP66 /68 with terminals

Ebmpapst 6224N Axial Fans 12-28V DC Two Fans on Moting Plate

Philips SON 250W/220 High Pressure Sodium Lamp 250W E40 Coated x2

ERICO Cadweld L160 M Handle Clamp Weld  Flint Ignitor T320 165000 Tool

Merlin Gerin NS80H-MA Circuit Breaker Med Case MA12.5 12.5A Compact 70kA 41

Merlin Gerin NS80H-MA Circuit Breaker Med Case Compact 70kA 415V 3P 50mA

HOKE 2118F6Y 2100 Series Bar  Screwed Bonnet Needle Valve 316SS 6000 PSIG

DEMAG 71304545 Rope Sheave Cover Hook Steel Wire Rope Protective Sleeve DR5

Toyota 04483-60130 Shackle Kit Rear Spring substituted by 04483-60200

Samin ABK11-25A-02G-KR Pilot Type Multi-Relex 2 Port Solenoid Valve 220Vac

FESTO DSNU-40-125-PPV-A Pneumatic Air Cylinder Rod 196035 10bar Max

Norgren Y68A-8GN-N1N Yoke Assembly Y68A8GNN1N for LF68

MTi Group 11-017 PL-W360 360g DIPWEIGHT Green x3

MTW HSM 407 Backstop for TRW HSM Gear 044T0003 044s0100

F600A075030 Socket Head Cap Screw 3/4 Inch x 10 C x 3-3/4 Inch B16

Grdfos 96545321 MMS6000 Gasket Kit MS Motor 18.5 - 37 kW Made In Denmark

Hawke PL-612 Jction Terminal  2.5W 420V 26A PL Series GRP Enclosure

EYE IWASAKI MRF400/BU Multi Metal Lamp 400W E40 base

Manson Battery Isolator SSB-2112 12V 100A MCU Controls with FET Series SSB

SIBA NH3 313-500 DIN Fuse Link 500A 690VAC 440VDC 25kA Size 3 gG

CLIPSAL 56C310L Switched Lighting Socket Outlet 2 Flat 1 Rod Earth 10A

CCG Cable Gland 1 E1EX 20 EEx de IIC Multi Armoured Size 1 052301 x10

Rittal DK 5502.405 Cable Manager System Moting  Clamping Clips RAL9005

Gainsborough 120AMERBC Dummy Lever RH 63mm AMELIA Chrome x3

Phoenix Contact G 5/ 2 2716020 Device Terminal Block 2 Position x50pcs

Eye Lighting MF400LSH/U 400W Multi Super ACE HID Lamp 38000Lm 4200K

SCHNEIDER BMXFTB2000 PV01 Modicon 20-Way Screw Terminal Strip M340 PLC Modules

GEC Alstom TIA16L Fuse Link gG 16A 415VAC 80kA x20

CLIPSAL 4CB310D10 Miniature Circuit Breaker MCB 3 Module 3 Pole 10A 10kA D-Curve

EATON Moeller Disconnector Isolator S-40/3 40A 3P 630V Max Switch 276272

Moeller EATON Relay Contactor DILR22 110V 50Hz 120V 60Hz

Moeller EATON Relay Contactor DILR22 115V 60Hz 2NO 2NC

Schneider K2C003QCH IP 45° Multi Step Cam Switch 20A Stay Put

Schneider Electric LRD3359 Thermal Overload Relay TeSys-051997 3P 48-65A Class 1

ADALET AJAC 46 Conduit 3 Outlet  for Hazardous Locations 15 Cu in 4613-1 x2

Omron S82K-5024 Power Supply Input 240VAC Output 24VDC 2.1A

Fuse Master TMF400 BS88  Fuse Link 400A gG 80kA 415VAC Center Tag S2005

Clipsal 35VH-WE Flush Plate Five Gang Vertical Horizontal Standard Pattern x7

Clipsal 36VH-WE Flush Plate Six Gang Vertical or Horizontal Standard Pattern x

Danfoss 7773108 Heater Crankcase Belt External Carrier 75W 230V

Danfoss 7773107 Refrigeration Crankcase Belt 65W 230V

NHP LED195-02WH-SB-02 Beacon 0.31A 24VAC/DC 73mm LED195 IP65 Red

AB 1485CS-P10W5-N6 /1485GS-P2M5-C DeviceNet Cordset 5P 2m fits Allen Bradley

Master Lock 484 Rotating Gate Valve Lockout Red 0484-5700

Rittal KL1502.510 Terminal  200 x 200 x 120mm with Cover

MTL Instruments MTL5011B Switch Proximity Detector Interface

Dixon BBVSTD025SS 1" BSP Ball Valve General Purpose Nickel Plated Brass x4

Med-Con 300012 Over Shoes Regular Shoe Cover Disposable Blue Size x300

Flowserve 26101 VAL1002385 Std Input Capsule Spare Part Kit 25

Spirax Sarco 0620481 Air Vent Assembly

Merlin Gerin 29032 Circuit Breaker Sht Trip Compact NS TM63D 3P3D 63A 5Nm

Hills NX1516-HILLS DAS Alarm Reliance 16 ZLED Keypad S4157 NetworX

Phoenix Contact 0201278 Fixed Bridge FBI 3-15 Pitch 15mm Silver  x10 pcs  

GE TEB122030 Circuit Breaker 30A 240VAC 250VDC 2P General Electric

ASHCROFT 30 EI 60 E 025 0/100C 3" Bimetal Thermometer E468647 1/2 NPT

ADALET AJAC 46 Conduit 2 Double Outlet  for Hazardous Locations 15 Cu in 4613

Dresselhaus C15E Ring Nut M12 DIN 582 Galvanised Steel Lifting Ring Eye Nut x10

Brady Prinzing LG252M Group Lockout  Maximum 10 Locks Yellow

Parker DX1-416-70 Pneumatic Control Valve 5/3 Double Solenoid Closed Centre

CAT Caterpillar 348-1861 Filter Element AS 3481861 x2

IWASAKI EYE Lamp 375W FEC CERA Arc Ace Ex CMT360LS/EX/HOR Ceramic Metal Halide

Venture MS 400W/H75/ED28/PS Pulse Start Metal Halide Lamp 400W Clear x2

Ravioli SPA E T206A2-360 24V DC Intermittent Power Contactor Bobina

GRDFOS 19255-TBO Spacer Stop Ring UTD TBC R402 for SP60 Motor Overhaul x8

PDL Matrix MSW320WH Switch 20A  M150 415V 3 Pole 1 Isolator IP66 White

Clipsal P2032/2VA Flush Switch 2 Gang 250V AC 10A P2000 Series Vertical x5

GCE 0730117 MEDIMETER Flow Metering Device 4.5 Bar 15 l/m SS G 3/8

Clipsal P2031VA WE Flush Switch 1 Gang 250VAC 10A P2000 Standard Vertical x5

Loadset 3T x 6M Ton Polyester Rod Lifting Sling  Test Cert. AS 4497.1 Yellow

NHP Terasaki DTCB10106C Din-T10 MCB 1 Pole 6A 6 Amp C6 10kA Circuit Breaker x6

HPP Hi-Precision Profiles HPPDJB4-25MD Deep Jction  4-Way 25mm Grey x30 pcs

HPP Hi-Precision HPPDJB1-25MD Deep Jction  1-Way 25mm Grey x40 pcs

Armstrong 47-015 15mm Standard Impact Socket 1/2" Drive x10

TE Tools 31250set Podger Ring End Spanner Tool 50mm Steel

CMP 89120854 OGB400-100 240V 50Hz Ballast Suit 400W MV/MH 135V 3.25A Lamp

Parker DX3-621-713 Pneumatic Solenoid Spring Valve IS03 5/2

Tyco STC1-3 STC1-3 Service Tee Connector Clamp Tap x7

Hawke International PL612 17A Conduit Jction  4.1W 550V Two Glands