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

Square D I-Line ICWL243X5563 Smart Cell Enclosed Control Panel, 30A, 480VAC

AMK D-73230 Kirchheim/Teck AMKAMAC A6D-MC0-15P SmartPanel Controller 15in Screen

Siemens SPD6A160LI Circuit Breaker 1600A 3P 600V w/ 1600A LI Trip Unit

Eaton Corp. Cutler Hammer CHMDL3800F Circuit Breaker 800 AMP 3P 600 VAC

Siemens SMD6A800LSI Circuit Breaker 800A 3P 600V w/ 800A LSI Trip Unit

Square D NEMA Size 5 8502SGO2S Ser. B Contactor 3P 600V 50/60Hz

Siemens 6ES7 410-5HX08-0AB0 PCS 7-400 CPU

Square D Breaker PAF362000DCMO22320 with Control PAMO2

Endress+Hauser Micropilot FMR67-7NT7/0 Radar Measurement Sensor 80GHz

Siemens Circuit Breaker HJX3B300 300A 600V 3P Type HJGA Frame JG

ABB E2S-A 12 1200 AMP Current Transformer

Cutler Hammer EATON Size 6 Contactor 10-5822 Ser. C1, 540A

Siemens 6SE64402UD33OEA1 AC Drive Micromaster 440 62 AMP 480V 3PH

Eaton Cutler-Hammer NBDC31200MW Circuit Breaker 1200A 3P 600V -  

INFRARED ENGINEERING MM55 Moisture Gauge 55+ KIT

Square D NEL1236lSIG Trip#NE121000RP 1000A 240-600V 1200A Frame, 3P

Square D LH36225 I-Line Circuit Breaker 225A 3P 600V -  

Square D MJA36800 800A 3P I-Line Circuit Breaker

Square D LJA36400CU31XYP Circuit Breaker PowerPact 400A 600V 3P I-Line

Allen Bradley PowerFlex 700 20BD027A5AYNAND0 Ser. B 20HP 27A 3Ph. 480V w/ HIM

Square D MJA36600 600A 3P I-Line Circuit Breaker

Square D NX361000G I-Line Circuit Breaker 1000A 3P 600V LSIG Trip & ARP083 Plug

Square D LH36225 I-Line Circuit Breaker 225A 3P 600V  -

ABB ACS550U1038A4 AC Drive 38A 480V 3PH NEMA 1

Square D Model 6 250 Amp 24in. Breaker Feeder Bucket with KHL3600M 250A 3P 600V

Allen Bradley 2711-K14C8X PanelView 1400 Ser. A 14in. Screen -  

Square D MJA36400 400A 3P I-Line Circuit Breaker

Siemens Simatic IPC427E 6AG4141-5BC07-0FA0 Microbox PC

Allen Bradley 150-B135NBDB SMC Dialog Plus Ser. A 135A 100HP @ 460V

Allen Bradley 1109-COD-EEW Vacuum Starter 400A 120V w 1102C-CP46D Control Module

Allen Bradley 150-F108NBDD Smart Motor Controller

GE Spectra RMS SGLC3668L4X6C 600A 600V 3pole Breaker (GE Certified Breaker)

AB 100-D300 Forward Reversing Contactor with Mechanical Interlock

Allen Bradley 140U-JD6D3-D22 (A) 225A 3P Circuit Breaker

Triconex 3625 24VDC Digital Output Module

Allen Bradley 1109-COD-EEW Vacuum Starter 400A 1500V w/ 1192-EEWG

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Square D MEL836LSIG 800A Circuit Breaker with 800A Frame 600V

Allen Bradley 150-F85NBDD Smart Motor Controller

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Allen Bradley 194R-NU600-1753 Switch Disconnector 3PH 400HP @ 480V 600A 3P 600V

Eaton FP-5000 FP5200-10 Feeder Protection and Metering Module

Yaskawa Electric SGDB-60VDY109 Servopack Servo Drive 3.89HP 32.2A 3Ph 230VAC

Siemens NXD63B100 Circuit Breaker 1000A 3P 600V w/ 1000A Adjustable Trip Unit

Allen Bradley 150-F108NBD Smart Motor Controller

Cutler-Hammer NBDC31200MW 1200A 3P 600VDC

Allen Bradley 2711-T9C8X Ser. C PanelView 900

Siemens HND63F120 Sentron Series 1200A Breaker, 3P, 600V

WATLOW PC31-F25B-1000 Power Controller

Kurth Electric KE7200 Ethernet Performance Tester with KE310 Probe

Square D 8536SFO1S NEMA Size 4 Starter Ser.A 120 VAC

Honeywell UDC2500 Controller DC2500-C0-0000-200-00000-E0-0

Cutler Hammer NN361200A 1200A Circuit Breaker 600VAC 3P

Benshaw RB2-1-S-180A14C 180A 3PH 600v Soft Start 200 HP

Square D LX36400G 400A 3PI-Line w/ Electronic Trip Circuit Breaker

Eaton C2000K3C Control Transformer 2.0kVA

Square D Integrated Power Center 35386320-001, 70A 3Ph 4W

Square D LA36125 I-Line Circuit Breaker 125A 3P 600V  -

Square-D HL4IMA24C1 Surge Protector 3P, 277V

Square D HL4IMA24C Surge Protector 3P 277V

SEL-2730M Managed Switch with 9330C Power Supply

Siemens NXD62B120 Circuit Breaker 1200A 2P 600V w/ 1200A Adjustable Trip Unit

Toshiba VT130H9U4750 75HP 480V Adjustable Speed Drive

Square D LH36350 350A 3P I-Line Circuit Breaker

Fluke 718 100G Pressure Calibrator with Leads

4 product ratings- Fluke 718 100G Pressure Calibrator with Leads

Fluke 718 300G Pressure Calibrator with Leads

Square D LX36350G 350A 3PI-Line w/ Electronic Trip Circuit Breaker

Allen-Bradley PanelView Plus 1000 2711-T10C4D2 Ser A Color Touch Display

Allen Bradley 1336SB015AAEN4HA2L6 1336 Plus AC Drive 19A 15HP NEMA 1 Enclosure

Red Lion GRAC0001 Graphite Edge Controller

MOXA EDS-528E-4GTXSFP-LV Ethernet Switches

Micro Control Systems MSC-TOUCH-PC15 Touchscreen Interface 15in Screen

Spectrum Controls 1746sc-INO4i Ser.B Rev. 1.03 Current Output Module

Allen Bradley 2711P-T7C6B1 PanelView Plus 700 Operator Interface 6.5in Screen

Square D LJA36400U31X 400A 3P I-Line Circuit Breaker

Square D 8903LW1000V04 Contactor

Square D TVS4EMA12AC Surge Suppressor 480Y/277V 3 Phase 4 Wire 120KA

Square D 8536SF01H30S Ser.A NEMA Size 4 Starter w/ Adjustable Overload

Siemens 6GK1503-3CC00 Simatic Net Profibus OLM/G12-1300

Square D JGF37125D81AEUOYE 125A Circuit Breaker w/ accessory wiring

Lenze M14150B AC Tech mc series Intelligent Drive 15HP 24A 3Ph. 460V

Siemens CFD63B150 Circuit Breaker 150A 600V Ser. A 3P Type FD

Eaton HMX34ASG02321N Non Variable Drive 23 AMP 460 V 15 HP 11 KW N1

Square D Mag-Gard KAL3625026M Circuit Breaker 250A 3P 600V

Siemens 7SJ6215-2EC92-3FG0/GG Overcurrent Relay

Allen Bradley 520VF-EOD Size 4 Starter with Relay

Square D KC342501021 I-Line Circuit Breaker 250A 3P 480V w/ Shunt Trip

GE SKHA36AT0800 Circuit Breaker with AMC3KM Model 1 Cassette, 800A 600V 3P

Mitsubishi MR-J4-500A-RJ MELSERVO-J4 AC Servo Drive 3PH 5kW 20A 200-240VAC, 2016

DANFOSS VLT 6000 HVAC 15HP 460V

Schweitzer SEL387 Differential Relay 125/250 VAC 50/60 HZ

Square D MH36800 Circuit Breaker 800 AMP 600V 3P I-Line 3Ph

AB CAB6-140-EI with CAB6-105-EI Forward Reversing Starter

Cutler Hammer 8CXN-100C Current Limiting Fuse 8.3kV - Factory Sealed

Crouse-Hinds WSRD103542 Arktite Safety Switch 100A 4P 600V -  

Eaton HMX34AG01621N 16 AMP 10 HP 7.5 KW VFD 460 V

Bently Nevada 3500 149986-01 16-Channel Relay Module

Siemens JXD22B200 Circuit Breaker 200A 2P 240V w/ 200A Adjustable Trip Unit

Square D KC342501021 I-Linr Circuit Breaker 250A 3P 480V w/ Shunt Trip

TCI V1K160A00 Output Filter 150HP @ 600V 160A 3-Phase

Cooper Crouse-Hinds WSRDW33542 Interlocked Arktite Receptacle w/ Enclosed Switch

Triconex 4201RXM Fiber Optic Remote Extender Module

Siemens MXD62B800 Circuit Breaker 800A 2P 600V w/ 800A Adjustable Trip Unit

Rockwell Automation 140G-I3C3-D15 Circuit Breaker 150A 3P 480V-600Y/347V

Square D JJA36250 250A 3P I-Line Circuit Breaker

Square D LHL36300 300A 3P Circuit Breaker

Woodward 8446-1061 Touch Screen Remote Display

Red Lion Controls G310S210 Touchscreen Color Human Machine Interface

Westinghouse S56LSIG DigiTrip RMS510 with DigiTrip PD6D08A080

Magnetek GPD505V-A036 AC Drive 15HP 3-Phase 36A 230VAC

Yaskawa Electric SGDB-15VD Servopack Servo Drive 1.74HP 10.7A 3Ph 1.3kW 230VAC

Uticor PowerPanel 20-30VDC 18W Graphic Interface

RED LION CONTROLS 1003GX2-LX-10 3 PORT ETHERNET SWITCH

Rosemount 3051CG4A52A1AB4E5M5 Pressure Transmitter

Yaskawa CDBR4220D Breaking Unit 80A DC510-680V

Emerson IC695RMX128-GH RX3i Redundancy Memory Xchange 128MB

Allen Bradley 2711-B6C8X Panelview Ser B

Gould A213D Reversing Starter Size2 25HP 3Ph. 600V -  

Square D PowerPact JGA262005 I-Line Circuit Breaker 200A 2P 600V -  

Square D KAL362251380 Circuit Breaker 225A 3P 600V -  

Bently Nevada 3500 136180-01 Communication Gateway Module

ABB ACH550-VCR-012A-4+F267 Drive 3PH 480Vac 7.5HP

TRANE VFD with keypad, 15HP, 460V

Uticor PowerPanel 100G-UC10T1R0-CE 20-30VDC 18W Graphic Interface (DEFECT)

Allen Bradley 1192-EEWG Ser. A 400A Overload w/ E1 Plus

Fluke 805 FC Vibration Meter with Case

Square D Masterpact/PowerPact S33925 Neutral Current Transformer 400-1600A

Square D MHL36600 Circuit Breaker 600 Amp 3 Pole 600V

Allen Bradley 100-D420 420A Contactor 600V

Allen Bradley 2711-T9C1X Ser.C Panelview 1000

Allen Bradley PowerFlex753 20F11ND3P4AA0NNNNN AC Drive Ser. A 2HP 3.4A 3Ph. 480V