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

NEMIC LAMBDA HR-9-15V DC POWER SUPPLY

Parker 06F16AC Filter P max 150 PSI

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MERIAM INSTRUMENTS DIFFERENTIAL PRESSURE INDICATOR 1020 GR16491

Parker Hanifin Finite Filter Element - 4CWC10-0303X4 - 3 pc lot

PCB For JT1109001 - BX-JTK-06-01 - Prostar

TIMKEN H414210 Tapered Roller Bearing Cup

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BERGEN L31335POS17 SLEEVE CONTROL FUEL INJECTION PUMP KVGB-12 BERGEN ENGINE

PCB A25PD35-A Trafo BV85/80 - AD PAAR A25PC35-A DMA48 IOB-3

Varmebaronen VB9002 IP21 9Kw 400V 3P 13A Temperature Switch

Industrial Controls Transformer FK050JJ 50VA 50/60Hz Temp 150 C Type FEC

GE CR206A0 TYPE CR206A0 MAX VOLTS 600AC

PR electronics isolation Amplifier 2204

CSL csl/18-19/CP/078 High Pressure Gas Gauge for Oxygen 0-3000 psi

Sprecher  Schuch CT7N-23-C16 Thermal Overload Relay  Class 10A

General Regulator 1803-01 Fuel Ratio Control

Terasaki Control Switch CDY4B-205M

Schneider LRD340 Thermal Overload Relay with Everlink Terminals

Terasaki Control Switch CDY4B-205M - CDY 4B 205M

TITOS RWH120J TUBULAR RESISTOR 150 OHM J-Hz

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Allen Bradley Pressure Control Bulletin 836 Encl./ BOIT Type 1

Lovato PLN U1 RW Limit Switch Ac 15 3A 400A

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GC Valves S301GF24N8BE1E Solenoid valve 0.75A 10W 24V 50-60Hz 100PSI 2-4 Oil

Fisher Kit Part No RPACKX00012

Fisher Kit Part No RPACKX00012

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Fuji Electric 1SC3F0 Contactor Type SC-4S Fuji Electric 1TR4FH Type TR-6/UL

Ingersoll Rand 30710420 Support Cooler 15T4 Rev C

Quincy 140085-051 Convert Kit Qsi 235

Fairchild 10232 Regulator 500Psig 35.0Bar 3500 Kpa

Compair 98650.1059 Service Kit

MITSUBISHI S-N11 MAGNETIC CONTACTOR - 2PC LOT

FUJI ELECTRIC PXV4TAY1-0YF04 TEMPERATURE CONTROLLER

INDUSTRIAL SCIENTIFIC 1810-5460 SP40 SAMPLING PUMP WITH 10FT. TUBING

BARTEC EX CLOSURE GB-122/10 JUNCTION -ATEX Baseefa07/Atex0140X 4W 550V 21A

Baylor 38379 77 Heat Sink

Noshok 83418 Guage 25.310.30 PSI VARCO 1/4" BACK CONN. 25.3 BRASS FF

Varco TDS-4H Top Drive System 90094 Seal Retainer 1-3-262-218

Stucchi M-VEP7 ¼ Npt Coupler NPT-E12 - Italy

Togami Electric Daikin R51051 CLK35J-P6 Magnetic Contactor

Gilmore Valve Repair Kit 27017-2.3 RK For 1/2" Shuttle Valve Rev C

SKF 3205 A-2Z Angular Contact Ball Bearing

J.D Gould Solenoid Valve 4635K34 - Air  Water 120/240 - 1/2 Size 60Hz 10-250PSI

BBC Synphol CMA36-1 Klemt - GVT 360 5797 Controller Card -

Repair Kit 22519 RK Ver 010 - 1/4" Shuttle - 865542 - Proserv - USA For Gilmore

Ceag GHG5113304R0001 Power Connector Plug 16A-4H

Weksler Gauge 238A679-01 Rev.A Brazed Tube - Brass Socket - Brazed 0-15psi

Telemechanique RHC4191M Flashing Relay 220V 50/60HZ

Flow Teknikk A6131B073IMA0AAS Max.Pressure 1700 kPa @ 38C Flow Meter

Oras Vaccum Breaker 1/2" IPS - Wartsila 2502996 RBPN: 25040285 - 3 pc lot

Parker NV8FF Needle Valve

ITI Instrument Transformers Series 95 Synchronizing 952424E Synchroscope

Bergen KVGB-12 Sensor - Exhaust Temperature 3 Meter - Rolls Royce Marine 014740

Versa Solenoid Valve ENY-3198-22-HC-XISX6-D024

Danfoss EMP2 084G2110 Heavy Duty Pressure Switch 0-10 Bar PP 60 Bar

FUJI ELECTRIC ST4PC MULTI RANGE TYPE SUPER TIMER 100-240VAC 50/60HZ

SWAGELOK PGI-63S-BG100-LAQX-ABN Pressure Gauge 0-1450 psi PGI63SBG100LAQXABN

Rittel RoHS Compliant PS 4155100 Universal Light 110-250 V 50/60Hz

GEA Westfalia Seperator Spares - 0018-3464-600-W5 8 - Germany - 2pc lot

Parker Lucifer 121K6220 Solenoid Valve DN4 IP67 30Bar 220V 60HZ 20W

KASUGA MUE25 AC MAGNETIC CONTACTOR

Tech Power Controls C08G0000 PCB - Generator Callibration Board

Snap-On Tap  Die Set - 13 Pcs Die with 2 tools

GB Electrical KOW-520 1/2"-2" only tools Ratchet Wrench missing ZZ3339

Stator For Motor Brake 334007 - 904 Spare Parts 0098 - 0810 Elevator

Ashcroft DURAGUAGE Bronze Tube Brass Socket Brazed 0-15Psi 45-1279-AS-02B-15

Versa P-1102-98XX Solenoid Valve 120V 60Hz 12W 175psi max

Oteco Inc. 141221 PRV, Stem 2,5000-1K,SS4022 -For 2" x 250-1000PSI RV - 2pc lot

Filter Element For Deltech 813B FF Filter - TDS Purge Air System

Eaton Cutler-Hammer C320KB2 Base aux. Contact

TOEI 1600WVDC NH OF OIL CONDENSER 2μF O 82777A 14-624

Ferraz Shawmut Q301015 Protistor

Pressure Regulator - Arrow Pneumatic - R354 - Max. 300 PSIG - USA

Fisher Controls Kit Part No. R3580X00022

Ashcroft DURAGUAGE Bronze Tube Brass Socket Brazed 25psi Max. input 0-20000 RPM

INTELLIAN TECHNOLOGIES V1-8038 INTERNAL Tx Rf CABLE (R/J TO BUC) V110

INGERSOLL-RAND 42552950 FIELD REPLACEMENT KIT - Incomplete

Vickers Eaton 20057A REV 6 52-07-R

Apollo 70-105-01 Ball Valve Body:BRZ Stem:BRS Ball:BRS

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Repair Kit Hydraulic Control Valve - 1 inch Shear Seal - Shaffer 9911028

Fire Alarm Consilium Emergency push switch - Circuit 1206 BTA-LK RT98144

IME D4U4E Voltage Transducer

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JRC Spares Repair Kit - AW-48RA - Fuse NC1 - Elna CE-D Capacitor - Toshiba Tube

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Federal Signal FB2PST 120V~ 0.26A 50/60 HZ Series B Red - Fireball 2 USA

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Omron K2CM Motor Relay

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Hobart 289992-1 Shaft R/L Bracket

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Simpson Electric Current Transformer Ratio 50:5A PN 01293 – 50-400Hz

Mitsubishi JN350449-Y05 Coil

Maritime Laundry Supplier 8077112 Sealing Ring Wm-70

PWM Over Current Protector Assembly 47682 F Baylor Brake

SK-SATO BM-T-75P THERMOMETER ESCO EA727A-8

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Tideland Signal Card PC Timer - Simple Timer 530.1151-00

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