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

Browning Torq Gard - P/N: TGC 60 - 1-1/4" Diameter - Overload Clutch

MCG - P/N: AB34001-E9 - Servo Motor

Branson Sonic Power Company - P/N: 109-107-295 - Ultrasonic Welder Horn

Stäubli - Type: D221 345 02A - AC Servo Motor

MTS - P/N: A910320072 - Level Plus Gauging Systems

Applied Motion - P/N: 4023-828D Stepper Motor w/Thomson Micron #34-611-777-2775

MOORE - Multi-Point I/P Transducer (5 - I/P's) - Series 772

Fairchild - P/N: TT6000-401 - (3) Pneumatic Transducer w/ Block

PSC LazerData 11000 - Model #LD110311-1099

Keyst- P/N: 020-790-201 - Pneumatic Actuator on a Butterfly Valve

 - 196 Control Display Interface Panel W/Control Board A25051-B - D28622-1

Intelli FEED - Stepper Motor Driver

Fisher - 546 - Electro Pneumatic Valve Position Transducer -

Diagraph Corporation - P/N: 1902-782 - Head Logic Board -

Pacific Scientific -105-641001-01 Drive - w/Step Motor - P/N: E31NLHB-LNN-NS-00

Branson Sonic Power Company - Model 502 Convertor -

13" Diameter - 316 Stainless Steel Pump Impellor - P/N: R101-500-1203 -

Nexen / Horton - P/N: 806000 - "Air Champ" Pneumatic Brake -

Magtrol, Inc. - P/N: HB-120-2 - Brake Clutch -

Magtrol, Inc. - P/N: HC-500-2 - Brake Clutch -

Texas Instruments - Model 500-5892 - 6 Module I/O Base

Dynamation, Inc. - 1541 Gas Detection Instrument

Kob Instruments - P/N: NEK-2EAP - Thermal Flow Transmitter -

Tri-Clover - 7-1/4" Impeller -

Norgren - Assembly of (4) Valves - V70527-KA1 - w/CompAir - P/N: DX01-421-60

Branson Sonic Power Company - iquely configured Sealing Horn(s) and Booster

Reliance Electric - Model: P56H3003 - Motor 1/4 HP - 208-230V - 3PH -

Rosemot - P/N: 3144-D1NAB4 - Temperature Transmitter -

Allen-Bradley - Catalog #2755-L6EBX - Ser. A - Miniature Bar Code Scanner -

Allen-Bradley - 2755-HDG-4 - Bar Code Scanner w/Cable 2755-HDC-GS1-08

GE Fanuc - P/N: IC693PWR321T - Standard Power Programmable Controller

Branson - P/N: 119-060P - Circuit Board

Yokogawa - P/N: K1143PH-N094-B - Control Board

Teledyne - series #148830 - Analytical Instruments -

Montalvo - Model: TCU 90 PID - Web Tension Controller

Pall / Millipore ?? - Stainless Steel, Filter Housing

Millipore - P/N: H4137TSTC - Stainless Steel, Filter Housing

Siemens-Landis  Staefa- Powers Controls- 3/4" Actuated Brass Valve- 8" Actuator

PepperlFuchs - Model #US-215110 - Pressure Controller

PepperlFuchs - Model #US-215120 - Pressure Controller

PepperlFuchs - Model #US-315100 - Pressure Controller

Tri-Clover - CL4387M - Pump Front Plate -

Barber Colman - Actuated Brass Valve - P/N: VK49313-352-4-11

Rosemot - P/N: D1P1E5M5Q4 - Pressure Transmitter -

QTERM-II - T932 - Panel Moted Machine Interface

Magnetic Technologies LTD - Serial #520A1017

Magnetic Technologies LTD - Serial #520A1018

CHESTERTON - Type 123 - 1.000 - 25MM

Warner Electric - P/N: 5115-631-004 - Magnetic Clutch -

Bosch GKF-1500L Filler- Faulty Capsule Ejection Arm- P/N: 8-111-340-544 TL39-

L013114 - Lens, Objective ZnSe F-Theta F=253 - D=42,9 -

 · A-mot · f/2.8 · Zoom

Warner Electric - P/N: 5115-631-004 - Magnetic Clutch - PB-400 -

Yokogawa - Model: 4262 - uR 100T - Chart Recorder

PORT - DIGITAL PANEL METER - MODEL #Q2001FVR6 -

PORT - DIGITAL PANEL METER - Quanta - MODEL #Q2000FVR6 -

PORT - DIGITAL PANEL METER - QUANTA - MODEL #Q2004 RDC1,D1 -

Direct Logic 205 - D2-09B-1 - 9-Slot Power Supply w/Modules

BAYSIDE - P/N: NR23D-010 - Precision Gearhead w/Vexta Motor

Allen-Bradley - 1772-LP3 - Ser. A - Programmable Controller

Dräger - P/N: 04110544L - Spiral Hose 110CM Sleeve -

General Eastern - Model: DEW-10-0B1 - Chilled Mirror Hygrometer

Nexen / Horton - P/N: 806000 - SE-200-1*0.875 BORE - "Air Champ" Brake

Formsprag - D:I F345-0011 - Sofstep Clutch/Brake

Branson - P/N: 100-222-060 - Rev. 1 - Circuit Board -

Varian 9012 - Star Gradient Pump

Barber Colman - Actuated Brass Valve - P/N: VK49313-352-4-9 -

WARNER ELECTRIC - BROCO II - 161S - MOTOR DRIVE

Sperry/Vickers - P/N: 400823 - Directional Valve

Fluke - P/N: 2190A Digital Thermometer - 2300A Scanner and 2030A Printer

Browning - P/N: 3TB94 - Groove V-Belt Pulley -

MRC - 411MF - Single Row Ball Bearing -

BOSCH - P/N: 8108669327 - Lever Filler - LOT OF (7)

StegmAnn - Absolute Encoder AG 65 LC

GE Fanuc - P/N: IC610CHS130A - Standard Power Programmable Controller

Drexelbrook-Level Xmitter, iversal II -#408-8202-01, w/ Meter #370-4010-001-R1

Norgren - Assembly of (3) Valves - V70527-KA1 - w/CompAir - P/N: DX01-421-60

SONY - Model: XC-77RE - CCD Video Camera Module -

Flowserve - Worcester/McCanna - Series 75 Actuator - Model #10-75W-R1 -

BOSCH - P/N:16-166MA-7C8 - Filler Sliding Valve - Lot of Twelve (12) -

Thermo Separation - Spectra System SN4000 Controller

IT Instruments - URS-20 - Single Channel MFC Controller

Kendall - Medi-Trace - Medical Printer Paper - Ref. #31069472 - 1- (8PD)

Northern Telecom - P/N: NT 4x25 - Data it

AUTOTECH CONTROLS - P/N: E7N-G0256-8C0FS - Digisolver -

AUTOTECH CONTROLS - P/N: E7N-G0256-5C0FS - Digisolver -

Camco Varipak - P/N: 600180/92A40405000000??? - Speed Controller

KH Frederick - P/N: 001020 - G Control

ACUITY - P/N: AS-CLRS-017 - Camera - with Cosmicar TV Lens - 50mm - 1:1.8

 · f/3.5 · 50mm · High Quality

Intermec - P/N: KL1003-BA - Kit Print Head -

SMI - P/N: 601821-10KB - Sensor - W/ SST 02-0252 Valve

Electro Cam - P/N: PS-5011-10-P16 - Programmable Limit Switch

Seco Electronics - P/N: 8500 SCR - Motor Speed Control

PepperlFuchs - US-315100 - Pressure Controller - P/N: 92473

Tri-Clover - P/N: 361-10M-20-1-1/2"-316 - Pneumatic Actuator Control

Lightning Series 30 - Air Mixer w/ Gast Motor, Model #1AM-NCC-88

Pall Advanta - P/N: ALTD13G23DNH4 - Stainless Steel, Filter Housing

Delta Power Hydraulic - P/N: B4C4 -

Design Components Incorporated - P/N: DCI-150-50 - Power Supply

 - P/N: A21125-A - Circuit Board

Computer Technology Corp. - P/N: MLS-1216 - Pushbutton Assembly Module

Taylor Micro-Scan 500 - Indicating Process Controller

Diagraph - P/N: 1902189 - Ink Jet System Printhead

Lin Engineering 4218M-01-20 - Motorized Slide Motion Actuator w/ Board 86210-106

Pall Trinity - P/N: VNPNL2G723H4 - Stainless Steel, Filter Housing

Millipore - P/N: CESH22441 - Stainless Steel, Filter Housing

SPEX - 1683P Broad Band Radiaction Source

Perkin-Elmer - P/N: 0186-2765 - Diffuse Reflection Accessory

BOSCH - P/N: 8-104-650-213 - Blowing Plate, With 12 Nozzles

Alfa Laval - P/N: 9612129606 - 35mm, Mechanical Seal -

Banner - Model: OSBUSR - 27177 - Photoelectric Sensor -

ering it

Waters - 056451 Pump Driver Board 070801122S - Rev. 0

Warner Electric - P/N: EP-250 - Electro Pack Clutch/Break

GAST MFG. Corp. - Model: GR11 - GR20 - GR25

AUTOTECH CONTROLS - Model #E7N-D0360-8PPFS - Digisolver -

Compaq - JF9YD-YR7RR-RFD6V-K8H33-JVFPY - iPaq Desktop PC Computer

Racal Dana - P25 - Pulse Generator

RVSI - Camera, Model CM4000, with a FUJINON TV Lens- 1:1.7 / 35,Model #HF35A-2M1

Electro Cam - P/N: PS-5004-10-016 - Programmable Limit Switch

Compsee - P/N: BC-1021 - Bar code Connector

ACUITY - Camera, Model #CM4000 - with FUJINON TV Lens- 1:1.7 / 35 - #HF35A-2M1

Package Controls - P/N: PC1601 - Circuit Board

Zook Enterprises - P/N: ZC-9687 - 4 IN Type Mono/Duplex -

Zero-Max - E2-CW-12 - Drive Power Block

Norgren - Cylinder, Type #A0455A1, Rev.#2 - 2" Bore x 12-1/2" Stroke -

Powell - FIG 375 - 2-1/2" - Gate Bronze Valve -

Caliper - P/N: 78559-B - Carousel Controller

ATC - P/N: 7063AFR4X4NLX - Fiber Optic Beamswitch -

Particle Data, Inc. P/N: LBO-511 - Oscilloscope

Electroid - P/N: 105 EC-26B-8 24V 01-02 - Brake Clutch -