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

AB Allen Bradley 1770-M11 Mass Storage System Processor M11 Series B 966793-01

Westinghouse Type W Size 1 Starter 7 Amp Breaker Motor Control Center Bucket 12"

Westinghouse Type W Size 1 Contactor 12" 30 Amp Breaker Motor Center Bucket

Watts Industries PAS1000M314 Ball Valve Actuator 2 1/4" PAS-1000M3-14 2.25"

Basler Electric BE1-59N Grod Fault Relay A5E E1J N0N0F Solid BE159N A5EE1J BEI

Taylor 90JF117 20 PSI 120V 5W Chart Recorder Indicator Interface

Westinghouse Type W Size 1 Starter 15A Breaker 12" Motor Control Center Bucket

Telemecanique Altivar 18 ATV18U90N4 Drive 7.5 HP/5.5 kW 460V Square D 3PH 7 1/2

Dantel A11-48001-01 Rev E Fuse Module Board A114800101 RMPQ093AAB

Allen Bradley 1756-L1/A F/W 10.24 Logix 5550 Processor w 1756-M2/A Memory PLC AB

Allen Bradley 1756-L1/A F/W 10.23 Logix 5550 Processor w 1756-M2/A Memory PLC AB

Ovation Relay Output Module 1C31219G01 PLC Westinghouse Emerson IC31219G01 Panel

Allen Bradley 1756-L1/A Z03 F/W 12.25 Logix 5550 Processor 1756-M2/A Memory PLC

Allen Bradley 1756-L1/A Y01 F/W 10.24 Logix 5550 Processor 1756-M2/A Memory PLC

General Electric CR306E000XAAA Size 3 Starter 90 Amp 600 Vac 120V Coil 50 HP GE

GE 8000 Size 1 Starter 30 Amp Fusible 12" FVNR MCC Bucket 7700 CR306C0**ACET

GE 8000 Size 1 Starter 30 Amp Fusible 12" FVNR MCC Bucket 7700 CR306C0**FABA

Measurex 08488400 Rev C 16-Slot Chassis Rack Termination Backplane 05356400

GE CR306D000ABNA Size 2 Motor Starter 45A 600V 120V Coil 25HP 45 Amp

GE Fanuc Series 6 IC600-LX624L 24K Memory Module PLC IC600LX624L Series Six

Schneider Electric VS3 00-1-Jc013018 Vacuum Bottle Interrupter Tube

GEC DVS 72E Vacuum Bottle Interrupter Tube DVS72E

Valmet Metso Automation IOP322 181535 Rev C3/E2 Isolated Analog Output Module

Valmet Metso Automation IOP322 181535 Rev C7/H5 Isolated Analog Output Module

I/A Series Foxboro P0400DA FBM 01 Rev 0L 0-20 MA Input Module P0400DA0L

Honeywell 51304441-100 C Digital Input 24VDC 32PT MU-TDID12 51304440-100 A PLC

Sixnet ST-GT-422-02N Sixtrak I/O Gateway Module PLC Circuit Board

Refu Elektronik FP9321 SP00 Siemens Simovert Drive PLC Circuit Board FP9321.00

GE Fanuc 531X139APMAMM7 Micro Application Board PLC Card 531X139APM-AMM7

Foxboro P0400YE FBM 04 I/A Series PLC Input/Output Module P0 400 YE Rev 0N PO400

Allen Bradley 5250-LP  5250-MLP1 Logic Processor Host Board PLC Module Pyramid

Refu Elektronik FP9321 SP02 Siemens Simovert Drive PLC Circuit Board FP9321.00

Xycom 119546-001 Software HulaPoint Chips 119559 99290 9460 PC/AT AHIP4 Manual

Allen Bradley 2100 Centerline Size 1 Starter 15 Amp MCP Breaker 12" MCC Bucket

Allen Bradley 2100 Centerline Size 1 Starter 7 Amp Breaker 12" MCC Bucket HMCP

Allen Bradley 2100 Size 1 Contactor 15 Amp Breaker 12" MCC Bucket Sz1 15A AB

PRO Proximity Probe DP100104-19-23-10-02-00 30" Vibration Sensor PLC Cable 30 in

Exide Electronics 101072-815 Rev. P2 EE Buffer Board Card PLC 118302668 P3

Exide Electronics 101072815 Rev. A EE Buffer Board Card PLC 118302668 A

Taylor ABB 601BZ10000B Mod 300 Transfer Board 601BZ10000-B PLC PCB

Trane X13650515-04 Rev E 00B004 Options-Horizon PLC Control Module X1365051504

Copar 736-179 Power Supply Board PLC Card

Copar 736-183 Motor Control Board PLC Card

Gould A213D Size 2 Reversing Motor Starter 120V Coil 50 Amp 600V 25HP Sz2

ABB Kent-Taylor MOD 30 1700RZ14005C 125P1983-1 Rev H 125P1982-1 Rev D PLC

iloc 803 Dissolved Oxygen Transmitter Opertator Interface ilock 800 Display

Square D OmegaPak PT00EC4 Class 8804 3HP Drive SqD PT-00EC4 Omega-Pak 3 HP

GE Fanuc IC600CP600K Rack Chassis IC600CP600-K

Moore 39SDM024DCCAN 16101-121/01 APACS SDM Standard Discrete Module Siemens 3.01

Westinghouse Type W 15 Amp Breaker Type Feeder MCC Bucket 12" 15A MCP

Measurex 4342/1 Power Supply Input 220/230V Output 24V or 48V 08458900

Westinghouse Type SX Auxiliary Relay Style 289B459A15 A WH SX 125 V DC

Fischer  Porter 50LV3212B LV Flowmeter 13-42V Steam

Allen-Bradley ATI-53894 Heat Sink w Power Supply VS Drive Board AB D-129802-8/02

RAM Meter 2000A 50 MV Copper Current Sht Bus-Type 2000 Amp Meter 50MV DC

 Liebert Integrator-19SE Rev. N Integrator 19IN RKMNT 1UPS Ethernet 9 Vdc NIB

Foxboro FR-316C-2 Frequency to DC Current Converter FR-316

Foxboro FR-316-2 Frequency to Current Converter FR-316 60W

Frost Controls LCMP-11-23 Photo Receiver Light Curtain System

Power Measurement PL7330A8B0B0E0A0A ION Type 7330 Operator Interface 60 Hz

Sweo Engineering PCB 0027-2 Rev. C Power PLC Drive Board Motion Controls

Sweo Engineering PCB 0030 Rev A Power PLC Drive Board Motion Controls 0028-175-1

Allen Bradley 1300-EHT A Enhanced Handheld Programming Terminal Control Keypad

iversal Dynamics PCB107 Iss 1 Capacitor Control Drive Board PCB-107 CAP32

iversal Dynamics PCB28 Iss 3 Capacitor Control Drive Board PCB-28

Siemens 76398002 PC32F-Busplatine Sicomp PC-32F Chassis Board PLC Display

GE Fanuc IC600YB942B Analog Output Module Series Six PLC Board IC600YB942

Trane 806890 Rev 7 Control Board Refrigerant Monitor 813292

Siemens 1P 6ES7 223-1BL00-0XA0 Simatic S7 Module PLC Simadyn D 1BLOO-OXAO EM223

Square D Model 4 30 Amp Breaker Type 12" Motor Control MCC Feeder Bucket 30A Mod

Allen Bradley 1336F-BRF75-AA-EN 7.5 HP 1336 Plus II Vector AC VS Drive AB 7.5HP

Yamaha KD1-M4570-010 I/O Module Board PLC Input Output Motor KD1M4570010

 York International Genuine Parts 025-29151-005 Pressure Transducer NIB

Landis  Gyr 1011612 000 Rev B 1011614000 Rev B PLC Chiller and 1011612000

General Electric 7486D76-G1 Rev. I Servo Amplifier Fction Feedback Board PLC

General Electric 7486D76-G2 Rev. I Servo Amp Pwr Power Board PLC 7486D76G2

Landis  Gyr 1011612 000 Rev B 076082 Rev B PLC Chiller 1013072000 5

Yokogawa ST5*A PLC Module Card ST5 *A Board AS-S9221AQ-0 S9771AJ-0

Active Power Fan Monitor Card 30159_03 Board 30158 PWB 11657 PLC 3015903

Allen Bradley 46704-345-53 DL20 Dataliner Power Supply Circuit Board PCB PLC

Siemens 6DD2920-0AR1 SA61 SIMADYN D Transformer Module PLC Simatic 6DD292O-OARI

Toyoda Touch Amp Voltage Sensor SDV-XD-A1 Omron 100 VAC

Honeywell 620-2590 Rack Chassis PLC Module 620-25 Processor ISSC IPC 6202590

Cincinnati Milacron P-56 Acradrive Industrial Control Drive 35 Amps

Marathon General Purpose Motor 0.75HP G582 1725 RPM Frame 56C Encl TEFC TS

Westinghouse Type W 30 Amp Fusible Type 12" MCC Feeder Bucket 30A

Westinghouse Size Sz 1 Fusible Combo Starter  A204J

Honeywell ISSC 627-1002 Mini COP Module 6271002