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

AMK KU-R03 AMKASYN Servo Drive CPU/Processor for KU Series Drives

Amk Pus8/11 Pumasyn 4-Quadrant Pulse Converter Super Condition 1A

AMK PUS8/11 Pumasyn 4-Quadrant Pulse Inverter Super Condition 1A

Amkasyn AW 25/38-3 Control 25KVA 0-800Hz

Amkasyn AW 25/38-3 Servo Drive Amkasyn AMK AW R02

Amkasyn KE20 Converter 20kW

Amkasyn KU 50-1 Converter 3x 82.5 Amp. 0..800Hz + KU-R01 + KU-IWA

Amkasyn KU25-1 Servo Drive 3x350VAC 0-800Hz - 25kVA Control AMK 46445

Amkasyn KU50-1 V01.04 Converter 3x 82.5 Amp. 0..800Hz + KU-R01 + KU-AG1

AMPERITE,115N02,TIME DELAY PLUG IN TUBE

Amphenol 1059606 Rev.A Cable

Amphenol 1059606 Rev.ACable

AMPRO A13137 Circuit Module Board3 Business Days

AMPRO RB1-620-R-11 500MHz ALX800EEXJ2VD C3 AMD/GEODE/500MHZ/128K

Amrel PPS 1001 PPS1001 DC Power Supply

Ams 3220-Smt Analysis Measurement and System Technology Unit

AMS 3220-SMT Analysis Measurement and Systems Engineering Unit

AMTI OR6-7-8000 Force Platform 8000lbs 20 x 18 1/4 x 3 1/4" MS 26-Pin Round

Amtron RT400 Process Control Box

Anaheim Automation 34W109D-LW8-1000DN 34W109DLW81000DN Step Motor

Anaheim Automation 34W109D-LW8-1000DN 34W109DLW81000DN Step Motor

Anatel TNY-WS3750X-3560X(A) Switch w/ Missing Part

Ancot DSC-216 DSC216 DSC-216/FDE DSC216/FDE DSC-216/F DSC216/F CSCI-Bus Analyzer

Andantex Redex RX123820-00 H25.2 Planetary Epicyclic Drive 5-Belt Ratio: 4.45:1

Andersen 3383 WD Anti-Sway Assembly ONLY w/ 2" Ball Hitch

Anderson Instrument LN005160000511 Level Sensor Transmitter 60" Stainless Rod

Ando AJ-2750B AJ2750B Frequency Synthesizer

Ando AQ-2715 AQ2715 Optical Power Sensor w/ Cut Cable

Ando VG3000E 703220-F/HS/AG2 Synthesized Vector Signal Generator 250kHz 3.2GHz

Andron CI5TTV-1.0 Control Board V3.0.4D Andron 000826160 PCU7665 Equipped!!

Andron Ci5ttv-1.0 Control Board V3.0.4D Andron 000826160 PCU7665 Populated !!

Andron MFA 2232 (0001334180) Control Board Andron MFAAPRA

Anelva M-391 M391 Controller

Anelva M-391 M391Controller w/ Dents

Anelva MIG-831 MIG831 H11-09127 Ionization Gauge

ANLY APT-8S APT8S Programmable Timer AC/DC 100-24-V

Annie Selke Pine Cone Hill Silken Solid Grey Sheet Set Tencel 400TC King Size

Annie Selke Pine Cone Hill Silken Solid White Sheet Set, Tencel 400TC, King Size

Anorad 02/00 500322 Controller

Anorad 1001140 299-1000-657 Interface Board

Anorad LD3 Linear Table

Anorad LD3 Linear Table Cut Cable

Anorad LW10-30-L High Prescision Brushless Linear Stage Travel: 30", Load: 110kg

Anorad LW7-48 High Precision Linear Stage With LCK-1 Linear Motor Length: 48"

Anorad LW7-48 High Precision Linear Stage With LCK-1 Linear Motor Travel: 48"

Anorad VPC-2000A VPC2000A Board

Anow LEP020E20EA 508mm MicrofiltrationNOB

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ANQING MARINE ELECTRIC FTD-I APM MOTOR CONTROL DEVICE

Anritsu MD8430A Signaling Tester Base Station

Anritsu ME3620A SDH/Sonet Analyzer Receiver (Transmitter)

Anritsu ME3620A SDH/Sonet Analyzer Receiver w/ Module As Is

Anritsu ME717C Microwave Repeater Test Set Displaying Unit

Anritsu ME717C Microwave Repeater Test Set Sending Unit

Anritsu Meter CO / ACSI-1100 NO TB0032 -

Anritsu MG3633A Synthesized Signal Generator w/ Breakage

Anritsu MG524B Standard Signal Generator w/ Scratches

Anritsu ML422C Selective Level Meter

ANRITSU MP1590B Performance Tester with MU150100A, NICE UNIT GOOD !

Anritsu MS2601A Spectrum Analyzer

Anritsu MS2721A Spectrum Master Analyzer / GOOD CONDITION /

Anritsu MS3606B Network Analyzer 10kHz-1GHz Made in Japan

Anritsu MS371A1 PCM Channel Analyzer Long Beep on S-Test

Anritsu MS62D3 Spectrum Analyzer

Anritsu MU181020A 12.5 Gbit/s Pulse Pattern Gen, OPT 001, 9.8 to 12.5Gbit/s

ANSI,120,HEAVY ROLLER CHAIN CONNECTING LINK COTTER TYPE LOT OF 2 NOS

ANSI,160,OFFSET CHAIN LINK 2 INCH

Antique Vintage Brunswick Panatrope Phonograph Gramophone Model 109

AONE Micro 450BP Switching Mode Power Supply 100-127VAC 47Hz/ 200-240VAC 63Hz

AP Catalytic Converter With Exhaust Manifold641344 For 2003-2012 Hyundai Elantra

AP Exhaust 645255 Catalytic Converter Assembly fits 1997-2004 Ford F-150

AP Exhaust Direct-Fit Catalytic Converter 645328 For 1996-2000 Chevy Tahoe

AP Universal Stainless Steel Catalytic Converter For 2011-2014 Ford F-250 Super

APC 640-3081F-Z_REV11 UPS Main Power Board PCB 640-3081_REV11 NICE UNIT &

APC ACF201BLK Rack Side Air Distribution 2U 115V 60HZ Unit Only

APC AP4421 230V 10A Automatic Transfer Switch 2x C14 12x C13

APC AP9571A Rack Power Distribution Unit PDU Basic 1U 10 Outlets

APC Back-UPS 550,BE550G,8-Outlet Battery Back Up Surge Protector

APC BR1500G Back Up UPS No Battery C

APC BR1500G Back Up UPS No BatteryC

APC ES 500 ES500 Back-UPS Controller

APC SC1500IQ Back up UPS 865w No Battery C

APC Symmetra PX 25kW Power Module 380-480v w/o Fan

APCC 640-0732P 6400732P Main Board3 Business Days

APEX Dynamics AD090-25-P2 Planetary Gearhead, 25:1, 160Nm, ≤7arcmin, NEMA 23

Apex Dynamics ADR110-50-P2 High Precision Right Angle Planetary Gearbox 50:1

Apex Dynamics AF075-010-S1-P2 Planetary Gearbox, 10:1 Ratio, 75 to 100mm Frame

Apex Dynamics AFR075A-050-S2-P2 90° Planetary Gearbox 50:1, 8,000 RPM Max

Apex Dynamics AFR075A-050-S2-P2 90° Planetary Gearbox 8,000 RPM Max, 50:1

Apollo AS0065N042A Actuator with 87A10735A Ball Valve, Size: 1-1/2", 1/4" NPT

APOLLO,70-106-01,BALL VAVE 1-1/4 INCH NOS

APOLLO,77CLF-104-01A,2-WAY BALL VALVES 3/4 INCH FNPT LOT OF 2 NOS

Apple 820-00597-A Logic Board For iMac W/ i5-7400 CPU, 2x 4GB PC4 RAM, 32GB SSD

APPLICOM INTERNATIONAL IPFB039 PCB BOARD /  

APPLIED MICROSYSTEMS 750-03200-00 / For Parts

Applied Motion 5023-364 5023364 Stepper Motor

Applied Motion HT23-398D HT23398D Motor w/ F21AJ4EDB06-1000 for RVSI 64000

Applied Motion Products 5034-414D 5034414D Step Motor Series 2.85A

Applied Motion Products STAC6-S-220 Stepper Drive 1-Axis .5-3.2A/Phase 220VAC

Applied Motion Products STAC6-S-220 Stepper Drive, .5-3.2A/Phase, 94-265VAC

Applied Motion Products STAC6-Si Stepper Drive 6A 2-Phase Si Programmer 120VAC

Applied Motion STAC6-S 1-Axis Micro Stepper Motor Drive Controller 120VAC 6A

Applied Motion STAC6-S-110 1-Axis Micro Stepper Motor Drive Controller 120VAC 6A

Applikon ADI 1012 ADI1012 Motor Controller

Applikon ZB30001020 Flexible Shaft Bioreactor Stirrer, for ADI 2015/2020

APV Invensys DE31-4SH5-IPS Double Seat Mix Proof Valve 4"x4" DE3 Stainless

APW McLean M17-0216-G009 Electric Enclosure Air Conditioner BTU 440/527W 1PH

APW Mclean M33-0416-G010H Electrical Enclosure Air Conditioner AC 4000 BTU 115V

Aquabrass 1/2" Pressure Balance Valve For Tub/Shower Brushed Nickel 42355BN

Aquabrass 10" Single-Function Square Rain Showerhead Brushed Nickel

AquaBrass Single-Hole Lavatory Faucet Chrome 15014

AQUAFINE 18176-1 UV Intensité Capteur

AQUAFINE 18176-1 UV INTENSITY SENSOR

Aqua-Pure,5530017,Whole House Water Filtration

Aqua-Pure,AP200,Under Sink Drinking Water Filter

Aquatrac Instruments M10T-C0-118-MSR2 Multiflex Control Automation

Arburg 138.587 V.02 Baseboard 729

Arburg 138.587 V.02 Baseboard Arburg 729

Arburg 5-4WE10 E34-32/CG24N9K4 Directional Control 4/3 Solenoid Valve 24VDC

Arburg 635/ 113.326 V.00 control board + Arburg 761/168058 V.02 + Arburg V24/20MA

Arburg 669 / 118,328 control board Eprom 235266 V2,700 ARB 719/743

Arburg 669 / 118.328 Control Board Eprom 235266 V2.700 ARB 719/743

Arburg 669 control board Arburg 123,594A 8MB Eprom 235266 V2,700

Arburg 669 Control Board Arburg 123.594A 8MB Eprom 235266 V2.700

Arburg ARB709 / 171632 control card conversion 340 Arburg 152625 + 719/743 / 235266

Arburg ARB709 129.856 V.04 Control Board CPU

Arburg ARB709 Arburg 129,856 V.04 Control Board CPU

Arburg ARB709/171632 Control Card Modification 340 Arburg 152625+ 719/743/235266

ARC UV 010-4340-6027 01043406027 UV Fiber Optic Light (6x)

ARC UV 010-4340-6027 01043406027 UV Fiber(6x)

Arcair A-track Gouging Torch & Tractor 120V 1/4 Carbon Rods Vintage Welding

Arcom Control Systems PCADADIOCD 586/30 Control Board