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

Sciemetric ISA Interface Board 806

Cutler-Hammer Model: 1160A-200 Series A1 60 Series

Reelcraft RT835-OMP

Demag Type: AF05 OEL: 0, 3 L Bauform: L-M-1-1-20-1/91,3

Killark X17SA Type X Conduit Body *LOT OF 10*

CTS Connect HIF35

Martin 6 3V 800 SK Bushing Bore V-Belt Pulley - 3V Belt Section, 6 Groove

Allen-Bradley 17710W16 Electromechanical Module

Festo CPE18-M2H-3GL-1/4 Solenoid Valve

Gates Model: 5/5VX1180 Model: 9389-5118 Super HC Powerband

Wiegmann Type 1 Indoor Enclosure 20x24x8

Thomas & Betts 2CCG *LOT OF 10*

SMC NCA1B200-3100-X142US Tie rod cylinder

Norgren J0377B1 Pneumatic Cylinder REV #3 MAX PSI 250 MAX TEMP 200˚F

SUN HYDRAULICS BBY 1BP2-AC VALVE

Bently Nevada 31000 Probe Housing

General Electric Molded Case Breaker w/ Enclosure Model: TJK426F000 Amps: 400

Martin Roller Chain Sprocket 120DSA16HT, 3 7/16” Bore, 1 5/8” Teeth

Ashley Blue Sling ARS240 16 FT Vertical 21200 Chokehold 17000 Basket 42404

Timken Two Bolt Tapped Pillow Block Bearing, STB ¾

Allen Bradley, Safety Switch, 440N-G02112

Osborn Heavy Duty Load Runners HPVA-76

Atlas Copco Tensor Cable 4220 1491 10

Reliance Electric P14X4827M E-Z KLEEN Motor 3HP 1725RPM 3PH 60Hz

Mercoid Low Water Level Control Switch Model: 123-3 MTL F Switch No. : 9-51

Goulds Impeller 088-88 10"

PARKER P1D-S032MS-0080 Air Cylinder

3” 316 400 WOG

Novax Circuit Board MD 299F c PL7100

Morvue Memory Board Model: 288-1067-07

Dodge 004586 D-flex 9s X 7/8 Flange

Allen-Bradley Male-90 14 Meter Long Cable 280-MTR22-M14 Ser A

Goulds 5 Vane Impeller Part#:100-556 Casting#: Material:CF8M Suction: 4”

General Electric MCC Bucket Size 2 IC2700 Plus Type: FVNR 15 HP

Grooved Ring w Shaft 4”

Durco Impeller 4x3-10 Mark III Group 2 Part#: 35641 Material: CD4M Size 8.5

Durco Impeller 4x3-10 Mark III Group 2 Part#: 35641 Material: DC Size 8.5

Mac Air Valve Assembly 92B-BAB-BJA-DM-DJAP-1DG 20 to 120 PSI

Ferguson RTL-20 Clutch 400 Torque

Keystone K-Loc Valve FIG 310, Body- WCB, Disc CF8M, stem 17-4, seat PTFE

Martin Roller Chain Sprocket Model: 16024H

General Electric Size 1 MCC Bucket IC7700 Line No door 7.5HP 480 Volt 15 AMP

Durametallic DuraSeal Model: TEST3250333 316 SS Rotary Unit/ SF

Durametallic DuraSeal Model: NE3N1375333 316 SS Compression Ring

Asco Solenoid Valve, 8263H319, 3/8" Pipe

Reliance Electric Motor With Fan P56H1322V

Reliance Electric Motor w/ Cinicinatti Fan, Model: PB-9 P56H1322

1" - 150 Milwaukee Actuated CF8M, SS Ball Valve w/ AccuTrack Positioner

Allen Bradley 140U-16C3-C80 (A) Circuit Breaker

Carr 748-298078N

Eaton FDB3150 Circuit Breaker

Armstrong B1672-5 PCA 214,814 314 5/16 orif

Martin 140B18H Roller Chain Sprocket

Scientific Columbus XLWV-5C5-A2 5A 120V Watt Var Transducer

Goulds 5 Vane Impeller 1x1.5-8 Part#: 76794-1203 Casting#: 56208 Material: SS

Versa VGS-4532-M5R-U-14-A120 Solenoid

Goulds 5 Vane SG NOEM Impeller 4x3-8G Part#: 100-165 Casting#: 53815

Xomox Pliaxseal 8” – 150 Rated Butterfly Valve 95C021L2, CF8M Disc/Body, PTFE

Sew-Eurodrive R37DT80N4Z Gear Reducer Ratio 24.42/1

Morse MK4479 Gearbox Ratio 60/1 HP: .44

SUN RDJA LAN

Westinghouse Size 2 Double Starter Model: A201K2CA and A210M2CX Max Hp: 25

Goulds 5 Vane Impeller 3x2-8 100-161 Casting# 53811 7" Trim

16 AWG Stranded Copper Wiring *LOT OF 4,000 FT*

Goulds 5 Vane Impeller 3x1.5-13 100-537-1203 Casting#53970

Groschopp USA 4384664 Electric AC Motor 3300 RPM, 220V

ITT Grinnell Description: diaphram valve 1 1/2"

Durco Impeller 1.5x1-6 Mark III Group 1 36830

Durco Impeller 1.5x1-6 Mark II Group 1 36830 4.5" Trim

Goulds 5 Vane Impeller Part#: 100-593 Casting#: 54017 Material: CF8M

Durco Impeller 25313 10" Original Size 6.25" Trim

Teadit Style: 2777 Size: 5/16” Qty: 5# Packing

SA45-1502-15SP E-Pi Module Connection (High Pressure) 3-15PSIG

Anderson & Greenwood 83C68-4 ¾” Spring relief Valve

SOLA/HEVI-DUTY E050TF Control Transformer

Tolomatic 01050100 Gearbox

Flowserve 076357A AutoMax Actuator SNA115M-180 DE8 BUNA-N/ASSY

Martin CHB2207N Hanger Bearing, Style 226, 3 7/16″ Shaft Size, Nylatron

Safe Scan SS7B461MDO

1 Lot of 39 PARKER XW68PLP-5-4 Prestolok Connector

Foxboro DM400YL Rev 0E I/A Series Input/Output Module

MORSE Cam Clutch Bearing, KK-17

Amtek Flow Meter 1.0 CPS Viscocity

Atlanta Gear Reducer Model: 58-46-039

General Electric MW 200 Safety Switch Type: QMW PT. : 343L510G9 No Enclosure

Whitey S-63TUVF8-JL WCB Valve

Videojet 520-0002-104 EHT Module

SKF Explorer Roller Bearing NU 224 ECJ

Barco BC54000-18-51 Type C Rotary Joint

port Laboratories 267B-JF1 D1

SK Instruments Flow Meter S70-56289

Apollo Valves 78162001 Mounting Kit

Foxboro I/A Series DM400YR FBM 15 Rev 0E 120VAC Input/Output Expander

Foxboro 823DP-I3K1NL2-A Electronic Transmitter

Thomas Betts Conduit Clamp PC 1 *LOT OF 50*

Rosemount Rosemount303 Emerson Rosemount 214C Thermocouple Temperature Sensor

Phoenix Contact Board IBS ISA FC/DI/I-T

Nspire 250W ATX Power Supply, MAV-250P

Goulds NOEM 4 Vane Impeller 1.5x3-13 100-537 Casting# 53821

Goulds 5 Vane Impeller 100-167 Casting#53817 8"

LINK BELT Pillow Block Bearing, P-B22431H

Anderson International Ball Float Steam Trap 2ST14CD, 1-1/4”, 60PSI at 400F

GE Glass Expansion Jacketed Spray Chamber 809-0800 Part#: 809-0800

CUTLER HAMMER AN16DN0 Size 1 Motor Starter

ARO Ingersoll Rand Oil Removal Filter F25492-310

Eaton VP241ABA1AH06800 Pneumatic Cylinder, 1.125" x 6.500"

US Motors 5HP; 1185RPM; 460V; Frame: 254U C12 01050572016 F

Parker 330 50-CCBMPRS14MC

Circle Seal Controls 3012S00T-006S 3/4" BIVCO Check Valve

SKF Pillow Block Bearing, SAF 22511

ARO Pump Repair Kit 637124-61 G9195 N Diaphragm

CARRIER BRYANT PAYNE GE HC52AE235 Condenser Fan Motor

HPS C1F002LES 2.0KVA 480(Pri V) 120/240 NEMA-3R Enclosure 1 Ph 60 Hz

MARTIN 35V125E Series Conventional Stock QD Sheave

Peek 1880EL Traffic Controller

Timken Ball Insert Bearing, RAL010NPP+COL

Allen-Bradley Fuse For Disconnect Switch, 40023-401-02

Keystone 480152432 Model G (Flapper Type) Float Valve

Dayton 4Z382 Permanent Magnet DC Gearmotor

Sew-Eurodrive WF10 DT56L4 Electric Gear Motor, 3 Ph

Martin 11S 2 3/8 Sleeve Coupling Flange

Durco Impeller 4x3-10 Mark III Group 2 Part#: 35641 Material: CD4M Size 7.5

Acromag 1894-CG-DC Slot Module Cage

Rockwell Automation, Frequency Converter Terminal Board, 193202-A01

CROUSE HINDS ENR21201 RECEPTACLE

CROUSE HINDS ENR21201 RECEPTACLE

Goulds 5 Vane Impeller 1x2-10 Part#:B10009 Casting#: 56381 Material: CF8M

Goulds 5 Vane Impeller 1x1.5-8 Part#: 76794-1203 Casting#: 56208 Material: CF8M

Foxboro P0912CB

Cutler-Hammer Contactor Catalog#: 701816A-01 Model: K Size: F

Bosch 9810232279; 081WV10P1V10 20KA115/60 D51 ; 4600 PSI

Flex-In-Line Gear Reducer 3TXQ-210/210 Ratio: 5 to 1 Input HP: 6.10