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

Johnson Controls MR Flow Pressure Switch P32AC2C

Coffin 21897-3 Gasket O-Ring

PCB Card For SCR Panel – Mitsubishi RYAR-D JEW01484-H01

SAC SSK PREAMP PWB-134 pcb

SAGInoMIYA - Packed Valve SGV-803DX - Connection 3/8 ODF - Japan R22 Stop Vavle

NH-Latr 000 SV 3431.000 3pole Fuse Switch 80A

Temperature Sensor Transmitter TCR2-a 0 to 600°C

Siemens 3SB3 604-6BA50 Indicator Light

Siemens 3TH2040-0BB4 Contactor

Appleton VC-50 1/2" Malleable Iron V-51 MTG Mounting Hood

Pilot Light - Killark GO3-F23C

ESM-3011-34-ARS-E2SP-Z-38-D024 Versa - Pneumatic Direction Valve

HYBEC SMPS INPUT 230VAC OUTPUT 78WATTS

ILSCO CRA-500L COMP LUG - 7 pc lot

ABB Entrelec BAM 2 Grey Gray Wire Terminal End Block BAM2 - 9 pc lot

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Valbia SR 52 Set 05 Pneu. Actuator w Auto Valve P.Max 8 Bar T.-20 ~ 85 dec C

Parker Filtration - Filter Element 924448 40SA NU - 40 Micron US

MITSUBISHI SRT-AN ON DELAY TIMING RELAY ITH 10A 0.2-60SEC

IZUMI DK-771 RTB TIMING RELAY

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BENDIX T-294304-D RELAY VALVE R-12 DURADRAIN ASSEMBLED IN MEXICO

VERSA VSP-2301 TWO-WAY VALVE VALVE PRESSURE MIN-MAX PSIG VAC-200

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Extech L666176 Light Meter

Mallory 176-216 MFD Capacitor

Burkert 00168511 Solenoid Valve 50-60Hz 110V PN0-6Bar

Telemechanique LC1 D09 Contactor LC1D09019 230V 50HZ

SAGInoMIYA - Packed Valve SGV-1004DX - Connection 1/2 ODF - Japan R22 Stop Valve

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Ceag GHG411 Ui 500V Imax 16A EEx de IIC T6

Omron J7L-18-11 110 Contactor AC110V 50/60Hz

IDEC RR3B-US Relay 6VAC - 2pc lot

Hoke 1315G4Y VALVE METERING 5000Psig 345Bar Needle Valve

Miele 5 234 361 V- Belt

Micro Switch BZE6-2RN-S Plunger Limit Switch Hobart 87711-60-1

Mitsubishi Coil S-A65 S-A80 Size 2

Aker Wirth International - Suction Filer Type S16

Quincy 110423-104 Clamp Hose Qsi 1500 - 4pcs

Rittal SK3110 Temperature Regulator - 2pc lot

SQUARE D - 9001KR1U SWITCH PUSHBUTTON 7801140 - 2PC LOT

PALL CORPORATION HC9800FKS13F FILTER FILTRATION MADE IN USA

Thermo King Relay 44-3186

CompAir 98650 1059 Spares Kit

Repair Kit for CAD Regulator 40550299 - 1/2 Inch

SIEMENS AG 3SE5112-0CE01 LIMIT SWITCH AC15 240V 6A MADE IN GERMANY

Varco Drilling PCB Assy. No. 85910-BSC Rev E with Acopian 12E40 Power Module

PCB for Power Supply Control 110V Brooknes JN304 TRN3895 - 161-110 - 2pc lot

Teryair Model L12 - 1/2" Lubricator - Max.press 1MPa 150PSI - Max Temp. 60C-140F

RJ Solenoid Coil KIT MKC-2 120V 50/60Hz 15W Rated 90C MADE IN US

 RJ Solenoid Coil KIT MKC-2 120V 50/60Hz 15W Rated 90C MADE IN US

SCHNEIDER ELECTRIC ZBV-B4 RED LAMP 24V DEL 18mA XB4 BVB4 089193*1 - 2 pc lot

Fuji Electric SRC50-2F/X (3a3b) Contactor

Moeller Miniature Circuit Breaker FAZ-C40/3 40A C 15kA 3pol. 278877 Spain

Idec Electronic Timer GT3A-1AF20 100-240VAC

Telemecanique RA1-EB 2332 23-32 600V Max Overlord Relay

Timken 28985 Bearing

Mission Water Slinger Assy. 22210-1A - National Oilwell 641116108

Pauluhn FX8014 StainLess Steel Latch - 12pc lot

Yokogawa Meter-KW 0-1500 Kilowatts Meter RH 0801-0010-02

TTS TYPE LEB-A FILTER A63441-B/Bypass MADE IN GERMANY

XP DNR60US24 Power Supply Unit 24 VDC 60W

Stopcircuit ENTRELEC LR88297 Ul 1A-240VAC CSA 1A-250VAC 50/60 Hz - 4PC LOT

Pass  Seymour CR15-I Connector Duplex 15A 125V - 4pc lot

Fuji 1TR4FM Thermal Over Load Relay 110A-130A 600V Max

Mitsubishi TH-N12KP Thermal Overload Relay

Telemecanique LS1-D253A65 Fuse Her

Tyco 38-S144C3307 Contactor 518100109 Coil 336V 60Hz 35Amp 277Vac

209/00007/20 Water Level Switch Eaton 3 Level for Washing Machine 20090000720

MKN 203661 Thermostat 95-190 C 2430MM

HUBBELL SS8 WALL PLATE STAINLESS STEEL SMOOTH TYPE 302/304 10pc lot

Miele 505 502 Repair Kit Inlet Hose

Carrier HN53CD024 Contactor 3P - 40 FLA

SCHNEIDER ELECTRIC ZB5AS844 Non-Illum Push Button Operator,22mm,Red

PARKER 4F-V6LR-SS NEEDLE VALVE MADE IN USA

Abb 800T-PH16G Pilot Light Ser T Input 120V 50/60Hz Lamp Number N318G

GE 9T58K0050 Core  Coil Transformer 0.5KVA 240X480-120V 1PH 60HZ

VKF 6220 Bearing

Ab 800TC-XA Contact Block Ser D Iec 60947-5-1 AC15,Dc13,600V - USA

Nachi 6307ZE Ball Bearing - 2pc lot

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Siemens 3SB3 644-6BA30 Yellow Lens Indicator Light

TMC 292726 - NT5344 - Signal Light Assembly

CRAN-00011.178 Hydraulic Reducer Nipple JIC 9/16-18(M) | BSP 1/2 (M) 4pc lot

Hitec 0000-6991-82 Lens Colored for LED Bulb-red - 1 lot

AMF POTTER  BRUMFIELD KUP14A15 RELAY 120V 50/60HZ 1/4HP 120VAC  4PC LOT

HPC OT2N Closed Contact Block - 2602D69G04 - 2pcs and OT2M - 2pc - 4pc lot

F.I.R.E. K-3PDT RELAY 200/250V 50/60CPS MADE IN ITALY - 2pcs lot

Square D Control Relay L0-60 Class 8501

NOV BJ Male Connector VARCO 979504-7 with O-ring - 4 pc lot

Fuji Electric SZ-A40  SC-03  TR-ON Aux. Contact

Klockner Moeller PKZM3-16 - 3 Phase Manual Motor Starter

Telemecanique LC-D638 Contactor max Fuse Size 225A Jem AC3.10.0 AC;63A 500V max

ABB 1SCA105332R1001 Switch-Disconnector OT63F3 50/60Hz

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Boot Contact LP40 11774-45D Kintec - UNK

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N-Tron 105FX-ST Managed Industrial Ethernet Switch 10-30 VDC Amps 0.60a

Telemechanique NY2 B21 Relay

Sloan Repair Kit Model: DO1001A - 3337035

IDEC RH3B-UL 24VDC RELAY

IDEC RH3B-UL 24VDC RELAY

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MP Filtri 157744 Filter element 320-2 A 10HB FMP000250 National Oil Well

GE CR104P Logic Reed Contact Block

 GE CR104P Logic Reed Contact Block

TMC Pressure Gauge NT0964 WIKA 230PSI 16Bar

GE CR120E01002 15Amp 600V

Siemens 3TF30 10-0X Contactor 230/277 V 50/60 Hz

Omron H3CR-A 0.05s to 300h 100-240VAC 50-60HZ - 100-125VDC

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Cat 9044000800 Bearing tapered Shuster 32207

Kiwa Ca9C - Caa Backflow Preventer - Watts Industries 30215 DISCO CA9C 3/4 DF

Daniel Woodhead Leviton 14W47 Plug male Watertight 15Amp 125Volt 3 Wire 2Pole

Speed Queen 35889P Pressure Switch

Speed Queen 35889P Pressure Switch

NAKAMURA ELECTRIC DMC-7,5.45 TYPE DM-20 Ui600V Ith20A CHANGE OVER SWITCH

Ashcroft 38-4 Thermometer Well Monel A99M 30067-1

International Instruments Vertical DC Ammeter 1145R2005C A0262

Heating Element First Choice 860117 - 1000W 440V

Magnaloy Model 600 2-3/8" Coupling Half Flex Drive Part 1 Weatherford

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Vanco R46-D-C1-4 Ring Gasket GFE 6A0003

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