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。

以下链接皆有货

Sugno SSV3-1626SBE Varimec Drilling Head AC Servo Motor 2650RPM Parts/Repair

Haas VF-3 Z-Axis Linear Guide Rails 1200mm OAL Set of 2

Hydac HF4P-BH3-09G10J41 9" Betamicron Inline Air Filtration Element 1-1/2" Ports

Fuji MPF2097G 1.5KW Induction Motor 1500/6000RPM 208V 7.8A 3PH 90L Frame

Quietflex 880 R6 Silver Flexible Duct 8" x 25' R8 7" x 25' Duct Mixed

Parker S83-93-MO-E Compumotor 24V With Encoder

Dual Post Inspection Stand Dial Indicator Her 12"x12" Steel Base 19.75" Post

Wood Dust Vacuum Collector Duct 6" To 4 Way Splitter Junction 3" Hose

Dodge 26A12R18 12:1 Ratio 1750 RPM 4.08Hp Input 145 RPM Out RH Gear Reducer

Morse 175Q56R60 60:1 Ratio 29RPM 90V DC Gear Motor .5Hp

Clark 16x6x10-1/2 Forklift Steer Tire W/Rim 6 Bolt 6-7/8"

Ingersoll-Rand 1X5SVK 2-4-3 2HP Centrifugal SVK Pump 3450RPM 1-1/4" x 3/4" Ports

Equipment Machine Belt/Sprocket Safety Guard Bolt-Down Cover 9" Pulleys

Mitsubishi HA100C AC Servo Motor 170V 10A 2000RPM 2kW 35mm Shaft

A-B Allen Bradley 1775-A3 PLC-3/10 Chassis Rack

Browning 107SMT09 9.2135 Ratio Shaft Mounted Speed Reducer 1750RPM 3/4" Input

Replacement Blower Wheel Backward-Inclined Aluminum 24-1/2"Dia x 4-5/8"W 1" Bore

LubriQuip/Graco 126-400-050 EO-1 Pump Package Lube System 12 CUin/min 250V

Elox 12-3816 320013-2 EDM Machine Operator Control Panel 460V 3 Axis

1-1/4" Thick Steel Plate Blanchard Ground Both Sides 4-1/4" x 18"

Rexroth Indramat DDS02.1-A150-D Servo Motor Drive Controller 150A w/Heatsink Fan

Dodge 100641 100DTL48 100 Single Row Chain Sprocket 48T 3020 Bushed Bore

48-1/8" Press Brake 90° Forming V Angle Die Block 1/2" Tang 2-3/8"High 1" Thic

UniPunch 12A 3-1/2 3/4" x 12" Throat C-Frame Punch Die Tooling Press Brake

Branches Adjustable 3 Leg 3/8" X 9' Chain Sling WLL5100 Grade 800

Flexaline VM3539 30:1 Ratio 208-230/460V .5Hp Gear Motor Sprocket Assembly

6" Jaw x 3" Open Industrial Machinist Milling Vise

Siemens 6SE7021-4EP50 3Ph 380/480V 50/60Hz AC/AC Drive

Wilton 11748 8" Jaw 8" Open Low Profile Drill Press Bench Vise

1  Wilton 11748 8" Jaw 8" Open Low Profile Drill Press Bench Vise

Allen Bradley 1326-DPS1A 62.8 Tach Voltage 10.2 FLC PM DC Servo Motor

Dodge 26A10R18 10:1 Ratio 1750RPM 4.8Hp 175RPM RH Output Gear Reducer

odrive 17S15R 3/4Hp Gear Motor 15:1 Ratio 133.3 RPM 230/460V 3Ph

Operator Interface Terminal Mounting Arm 40" Reach 30-1/2" Drop

IKO LWH 25 2000mm Linear Way Guide Rail 23mm W x 22mm H

48" Compressed Air Curtain Transvector Knife Blower Cleaner 64" OAL 1" NPT

1-1/4"-14 x 9" Forged Steel Specialty Bolt Hex Head Lot Of 16

Akron Belting B2150-RT 25" Wide Woven Back Rough Inline Conveyor Belt 38'2"

Electric Motor Hydraulic Pump Mounting Flange Adapter 6-1/2" Pump pilot 11" OAL

UniPunch 9110 A Series Vee ching Unit Die Shoe 1" Depth 4-3/4" Her Width

ARO 614612-25B 25' Industrial Self Retracting Compressed Air Hose Reel

Bystronic E0855-5-B GASCON4 Drive Unit

6" x 4" Flanged Steel Pipe Reducer Coupling 8-Bolt Flange 12-3/8" OAL

Avantek ATL-4219B Microwave Antenna Amplifier Assembly

Hennig 23" W Telescopic Way Cover 57" Long Extended

14-1/2" OD 3 Groove 5V Section Drive Belt Pulley Cast Iron 3" Wide 3-3/8" Bore

48xH300-F Timing Pulley 3" Wide 48 Teeth 2.975" Bore 13-1/4" OD

HEM Work Hing Clamping Front Vice Jaw

35-3/4"L x 24" D Heavy Duty Closed Clip Steel Drop-In Additional Shelfs

Danfoss VLT 5000 16/14.5A Frequency Converter 380-500V Input 0-1000HZ Out

James Monroe 166314-2 JM56920 Rev-0 41/C 14AWG  12/C 18AWG Shielded Cable 600V

Machinists Swivel Base Bench Vise 5-1/2" Jaw 8" Opening Aluminum Jaws

Dodge 26A10R14 10:1 Ratio 1750RPM 4.8Hp Input 175RPM RH Output Gear Reducer

3" Bore 30" Stroke Double Acting Hydraulic Cylinder

3/8"OD 1/4" ID Black Poly LLDPE Tube 3 Rolls 500' Each 1500' Total

Speedaire 1/2"x 40' Spring Retractable Industrial Heavy Duty Air Water Hose Reel

6-1/2" OD x 16-1/2" Crowned Face Conveyor Tail Drum Roller W/ Pillow Blocks

6.420" OD x 16-3/4" Crowned Face Conveyor Tail Drum Roller W/ Pillow Blocks

26" x 4" Uncoated Expanded Steel Mesh Parts Washing Dip Basket

ABB Q018MA015 Type EXLIM Q Solid State Intermediate Class Surge Arrestor

Rexroth AA10VSO28DR/30R-PKC62N00 Hydraulic Pump W/Adapter Bell

I.H.C. 5-13/16"x6"x16 Cast Iron Double Angle Plate/Fixturing Machinist Set Up

Yale 7220470 20 Type A2 Walk Behind Pallet Jack Drive Wheel Motor

Dodge 26A10H14 10:1 Ratio 175RPM Output Thru Shaft Output Gear Reducer

Kowa Denko Assorted Length Robot Cables Honda MR-20L Male Female Ends 9

50:1 Ratio Right Hand Gear Reducer W/Chain Drive Sprockets Parts /Repair

SMC CA2L80-1800-A142US 80mm Bore 1800mm Stroke Double Acting Air Cylinder

Lithonia IBZ 654L 277 2/3 ACRP FluorHighBayFix W/Emergency Battery Backup 277V

Hyster R30CH Narrow Aisle Forklift Rackloader Mast Vertical Lift Cylinder

Danfoss 175Z007S Frequency Converter 380-500V 12.2kVa 0-1000Hz Output VFD

60" x 20" Ball Transfer Gravity Roller Stainless Steel Plate

42" Wide Conveyor Legs Floor Support 22" to 38" Adjustable Height

Hitachi Seiki CNC Turning Center HMI Operator Panel Fanuc O-TT Display

17" Wide Steel Saw Cut Material Support Stand Adjustable Height 28"-40"

Koike Aronson 9935-6068-04 GE1200 Gear Sub-Ass'y Primary Worm Gear 4" Bore

Trans-Motion 3280-5 Spring Retractable Gas Cutting Torch Hose Reel 3/8" x 25'

Rochling 2-1/2" Diameter Acetal Celcon Black Rod 97"

14" Rolled Edge 26ga Pressed Galvanized Duct Elbow 90°

Transnorm TS1500/140 90° Curve Conveyor Belt IR=30" N=29" Pin 'N Go

Efdyn RCBS 2x6xBS04 Industrial Machine Shock Absorber Crane Bumper

19" Steel Round Manhole Manway Sump Pit Flange  Diamond Plate Cover

20" x 12" x 4" Steel Body Reservoir Coolant Return Storage Tank 1-1/4NPT

UVA P-225S NR-7462 Work Hing Chuck/Station 1.725" Tapered Bore 4 Bolt Mount

Jungner PSA-600 T-Slot Workhing Plate 33" x 11" With 3/4" Slot Head Width

Marathon Scot Model 60 Centrifugal Coolant Pump 1-1/2Hp 208-230/460V 3Ph

3" I-Beam Girder Underhung Bridge Crane Hoist Push Trolley Truck

Nippon TFO-K 0.75kW 1710RPM 3Ph 200/220V Oil Trochoid Pump

W780477 LTM 11-13/16" 300mm OD Tongue And Groove Soft Steel Pie Jaw Set See Info

Manual Pinch Roller Drive Gap Adjustment Gear  And Shaft Assembly

Amada A97L-0200-0835 CO2 Laooling Water  Gas Manif Assembly

Dodge 23A15L14 15:1 Ratio 1750RPM 2.57Hp Input 117RPM LH Output Gear Reducer

Pressurized Sandblast Unit Top Feed 1-1/4" NPT Spout 1/2" NPT Air Inlet

Pressurized Sandblast Unit Top Feed 1" NPT Spout 1/2" NPT Air Inlet

Tokyo Gas Electric Furnace Co. TBC-310 Pass Thru Furnace Controller 200V 50/60Hz

Herms FB 637 Aluminum Oxide Resin Back 1200 Grit Sanding Belt 44"x103"

Chad Industries Circuit Board Conveyor Linear Guide

Marposs E9066 100-240V 50/60Hz 15" LCD Flat Panel Interface HMI

Madison Kipp Model 50 Sight Feed 12 Point Vintage Mechanical Lubricator USA Made

7-1/2 USG Hydraulic Reservoir Return Hing Tank

Saw Stop 5Hp 3450 RPM 480V 60Hz 3Ph Industrial Saw Motor

24" x 12" x 1" Thick Steel Jig Set Up Fixture Plate 3/4" T-Slot

Baldor 20A20L14SL500FH 20:1 Ratio 1Hp 230/460V LH Output Gearmotor

20mm OD 20mm Pitch High Lead Ball Screw 66" OAL

Transnorm TS1500/140 180° Curve Conveyor Belt IR=42" N=24" Pin-N-Go

Samyang SY-WU-88 20:1 Ratio Right Angle Worm Gear Reducer

15-1/2" Between Frame Belt Driven Go Cart Project Axle Hub Brake Assembly

Dodge 26A10L14 10:1 Ratio 1750RPM 4.8Hp Input 175RPM Out LH Gear Reducer

SILL 43898 Optical Comparator Lens 20X Magnification For MV1420X

18" x 2-1/2" Deep  Spinning Parts Washer Rotary Centrifugal Cleaning Basket

Keyst4" Butterfly Valve 250PSI W/ Stainless Steel Adapter 2-1/2" Flanged

Rexroth ABM6PN-1X/07D2-01GM 7 Valve Station Hydraulic Manif 3/4" Ports

David Brown M062016.BANR1 16:1 Inline Gear  1-1/4" Output Shaft

10 Gallon Stainless Steel Liquid Storage Reservoir Tank 1-1/4" W/ Valve  Gauge

Pratt Burnerd 9219-01370 Setrite 8-1/4" Self Centering Scroll Chuck

8" Quick Clamp Mount Inline Dust Collector Filter Muffler 12" OD 40" Long

Incom Int 7SGMDM Inlet Valve  Air Filter Assembly

Link-Belt DS-B22435H-12 Hinged Top 12" Travel Belt Take Up Assembly 2-3/16" Bore

Miller Electric Voltage Selector Switch W/ Rheostat #A-030653-B

1" x 2" C Rolled Steel Flat Bar  96"

Dodge 210SM3A APG 2.7:1 Ratio 1750RPM 5.67Hp Input 648RPM Inline Gear Reducer

Racine 654011 4 Way Hydraulic Valve 115V 5000 PSI  Pressure Control Valve

Raymond 812-E4STF Narrow Aisle Forklift Steering Wheel Assembly

3.5" OD x 17" Flat Face Gravity Conveyor Roller 1.5" Axle 32-1/4" OAL

40mm Ball Screw 9.5mm Pitch Single Start 38" Screw Length 50" OAL

Atlanta Type 58 45 020 High Performance Servo Worm Gear Reducer 19.5:1 Ratio

PepperlFuchs UC3000U12E6R2 36605 Ultrasonic Sensor 15-30VDC

Quietflex 1280 R6 Silver Flexible Duct 12" x 12'

Thermo Fisher 315075H01 12" x 12" x 5" Condenser W/ Desuperheater  115V Fan

Aerofin BNF 25 x 32" 2 Row 5/8" Tube Heating Cooling Steam Coil Heat Exchanger

Cast Iron 2 Directional Adjustable Set Up Jig Fixture Riser 10-1/4" x 11" x 4"

Shelby 5405 1500Lbs Dock Mount Boat Trailer Hand Winch 19' Line

Kabelschlepp 0665 Power Track Energy Chain Cable Guide I.D. 10"x1-1/2" 154" Long