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。

Koyo ES-V6048 Printed Circuit Board W/ USB Port 32043844

Indramat 109-0852-4B01-11 Interface Circuit Board Dual Port Screw Terminals

Allen Bradley SP-120659 Bulletin 1336 Drive Board 3-200Hp AC Drive 148363

Goss E78869-1 Rev-01 Digital Ink Controller Printed Circuit Board

 Goss 1-E77667 Lon Router Circuit Board REV. 1

Quipp P3113-8650 PC Circuit Board For Inverter

Rockwell E17825-1 REV-H Goss Circuit Board

Allen Bradley 40754-177-53 Printed Circuit Board

Quipp P3411-23857 PC Board For Inverter

 Reliance Electric 0-55320 Printed Circuit Board DV/DT Card 460V

 Allen Bradley SP-120663 Bulletin 1336 Drive Interface Board 3-200HP Rev 06

Inspectech 12-43-1703 Control Logic Printed Circuit Board

Rockwell E15631-1 Goss Input Control Circuit Board

Lantech 55004201 SMC PC Circuit Board Rev A 8Bit A/D 0-0.045V

 OPTO 22 001788K Printed Circuit Board Assembly

 Rexroth R911307967 Absolute Encoder GDM01.2

 SEALED Allen Bradley 20D-STEG-B1 Bulletin 20D High Resolution Encoder

 SEALED Dynapar M050956 62-ACDF-1800-A0 Rotopulser Series 60 Optical Encoder

 Allen Bradley 20D-STEG-B1 Bulletin 20D High Resolution Encoder

 NorthStar S61024LJ04CLC Slim Tach RL67 Magneto-Resistive Bearingless Encoder

 Sick SCS70-HYA0-K01 Encoder / Resolver Motor 24VCD 12-Pin 10MM Shaft

 Northstar Technologies ST51024LC04CVTT Encoder

 Allen Bradley 847T-PY2C-RG01024 /A Incremental Encoder 10-Pin 5/8" Dia

 SEALED Encoder Products 725I-S-S-1200-R-HV-1-F-1-EX-N-CE Accu-Coder

 Encoder Products 725I-S-S-1200-R-HV-1-F-1-EX-N-CE Accu-Coder

 Encoder Products 725I-S-S-1200-R-HV-1-F-1-EX-N-CE Accu-Coder NNB

 Allen Bradley 845T-HZ53ECN-C /A Optical Incremental Encoder 24VDC 10-Pin

 Dynapar HR62510240341 Series HR25 Incremental Encoder 3/8" Dia 24VDC 10-Pin

 Allen Bradley 845T-HZ53ECN-C /B Optical Incremental Encoder 24VDC 10-Pin

 Allen Bradley 845H-SJDB24CRY2 /C Encoder 8-24VDC

 Allen Bradley 845T-HC53EFW /B Heavy-Duty Incremental Optical Encoder 24VDC

 Dynapar HS35102483336 5/8" Bore Slotted Encoder 5-26V 7 Pin HS3510248

 Data Torque RS23-2000-20/5-L Encoder 2000 CPR Resolution Single Channel 5VDC

 TE Connectivity PT8150-0060-111-2310 Incremental Encoder 10.8-26.4VDC

 Dynapar H231024104215 Incremental Encoder Flange Mount 3/8" Diameter Shaft

Sick SFM60-HNAT4K02 HIPERFACE Motor Feedback Multi Turn Encoder 7-12VDC 1056747

 Sick DGS60-A4A05000 Encoder 60MM Incremental 10MM Shaft 4-6VDC

MKS GV151 Impulse Amplifier & Splitter For Incremental Encoder 6-Out 24VDC

 Avtron HS35M-4X6BCU0AA00 Incremental Encoder HS35M 0.5" Hollow

 Dynapar H220001001225 H22 Series Rugged Shafted Bidirectional Encoder 26VDC

B&R Automation 8AC123.60-1 ACOPOS Incremental/Absolute Encoder Module Plug-In

 Allen Bradley 845T-DZ53EFW /B Incremental Encoder 24VDC 1024Res 3/8" Dia

 Allen Bradley 845T-DL33ACK /A Incremental Optical Encoder 11-24VDC 360PPR

 IFM RB6029 Incremental Encoder 10-30VDC/1000 Pulses

 SEALED BEI H25D-SS-CCW-8GC-7406-EM20-S Absolute Encoder 17-Pin 7.5/24VDC

 BEI 924-01013-447 Industrial Encoder H25G-SB-1500-ABZC-8830-LED-ED25-S

Dynapar H220001104225 H22 Series Rugged Shafted Bidirectional Optical Encoder

 SAF Drive Systems CA452 Encoder Input Card Rev: E A14520

 Allen-Bradley 845N-SJDN3-CRN1 /C Optical Incremental Encoder

 Heidenhain ROD 430 1000 27S12-03 Incremental Rotary Encoder 10-30V 1" Shaft

Marquip 6410010 Encoder 5-28VDC

 REA-JET DG 3000 Standard Shaft Encoder with Friction Wheel 10-30VDC 70mA

B&R Automation 7NC161.7 NC161 Incremental/Absolute Encoder Module 100kHz

 Hohner H1667Z/400 Incremental Encoder

ITT RS23-2000-20/5-L Encoder 2000 CPR Resolution Single Channel 201170-A-2000

Omron E6F-AG5C-C Rotary Encoder 12-24VDC

 Encoder Products 15T-01SF-1000NV1ROC-F03-S1 High Performance Encoder 8000RPM

DataTorque RS23-2000-20/5-L Single Channel Encoder 5VDC 2000 CPR Resolution

Fanuc LTD A860-0360-V501 Pulsecoder Alpha a64 Encoder

1  Fanuc LTD A860-0360-V501 Pulsecoder Alpha a64 Encoder

 Accu-Coder 725N-S-S-3600-Q-HV-1-F-N-SY-Y-CE Model 725 Shaft Encoder

 Allen Bradley 845-MW-A-1 /A Bulletin 845 Measuring Wheel Encoder Accessory

Schneider Electric VW3A3401 Encoder Interface Card For Altivar Range Lift READ

 SEALED Allen Bradley 847H-DN1A-RP01200 /A Incremental Encoder 2.5" Diameter

 Fork Standards Inc. RSE-2167-0300-QH Rotary Shaft Encoder 300PPR 12-28VDC

BEI SensorH25D-SS-2048-ABZC Flange Mount Encoder 5-28VDC 2-Channel

 Eaton DH1-34140DN-C21C PowerXL Variable Frequency Drive 480V 3Ph 100HP 400Hz

Allen Bradley 1336E-B040-AN-EN-GM5-L6 /F 1336 IMPACT Adjustable Frequency Drive

TESTED Fuji Electric 6KG1143025X1B1 AF-300 G11 AC Variable Frequency Drive 25HP

ABB ACS601-0030-4-000B1700801 Frequency Converter AC Drive 500V 3Ph 30kVA READ

 Ajax Tocco D-212956 Circuit Board Radio Frequency Inverter Board Solid State

ABB ACS601-0016-4-000B1200801 ACS600 Series Frequency Converter Drive 500V 15HP

Allen Bradley 1336F-AQF20-AN-EN-L6 /B 1336 PLUS II Adjustable Frequency AC Drive

Allen Bradley 1330-AAA Bulletin 1330 Adjustable Frequency Motor Drive 1.6kVA 3Ph

Berges ACP-3302-2 Variable Frequency Drive 3X207-264V Input 3X240V Output

 Red Lion AFCM0000 Configurable Analog Frequency Converter 50Hz

Berges ACP-3301-5 Variable Frequency Drive 240V 400Hz Max 6.4A Output

 Phoenix Contact MCR-f-UI-DC Frequency Transducer MCR Measuring 24VDC 60MA

Phoenix Contact MCR-f-UI-DC Frequency Transducer MCR Measuring 24VDC 60MA 1.5KV

Red Lion Controls IFMA0065 Frequency to Analog Converter 85-250 VAC

Red Lion Controls IFMA0065 Frequency to Analog Converter 85-250 VAC

Allen Bradley 20DD300A3EYNBNDNL /A PowerFlex 700S AC Drive 250HP 300A 480V

Allen Bradley 1395-B79-C5-P50 /A Bulletin 1395 DC Drive 460VAC 500VDC 200HP

Allen Bradley 20BD096A0ANNAND0 /B PowerFlex 700 AC Drive 75HP 480V 3Ph 96A FR:5

Toshiba VFAS1-4132KPC-A1 Transistor Inverter Drive 3 Phase 200HP 380/480VAC

Allen Bradley 20G14ND415AN0NNNNN /A PowerFlex 755 AC Drive 350HP 415A

Allen Bradley 1395-B79-C5-PZ /A Bulletin 1395 DC Drive 460VAC 500VDC 200HP 3Ph

Allen Bradley 20G1AND361JN0NNNNN /A PowerFlex 755 AC Drive 480V 3Ph 300HP 361A

Allen Bradley 1395-B79-C5-PZ /A Bulletin 1395 DC Drive 460VAC 500VDC 200HP

 Reliance Electric 40V4160 GV3000/SE AC Drive 40Hp/30kW 460VAC 54A 50/60Hz

 SEALED Allen Bradley 20G1AND156AA0NNNNN /A PowerFlex 755 AC Drive 125HP 156A

 Yaskawa CIMR-AU4A0250AAA A1000 AC Drive 400VAC 250/216A 3-Phase 50/60Hz

Allen Bradley 20G1AND415AN0NNNNN /A PowerFlex 755 AC Drive 480V 350HP 415A

Allen Bradley 20BD125A0ANNANN0 /A PowerFlex 700 AC Drive 100HP 3Ph 480V

Omron IDM CIMR-G5U4300 G5 Series AC Vector Drive 3 Phase 460V 605A 500HP

 Allen Bradley 20P21AD330RA0NNN /A PowerFlex DC Drive 330A 200HP

TESTED Allen Bradley 20G1AND186AA0NNNNN /A PowerFlex 755 AC Drive 3PH 186A 150HP

TESTED Allen Bradley 20G1AND186AA0NNNNN /A PowerFlex 755 AC Drive 150HP READ

 Allen Bradley 1395-B73-C2-P50-X1 /B Bulletin 1395 DC Drive 50HP 88A 500VDC

 Siemens 6SE7024-7ED61-Z Simovert MasterDrive AC Drive 380-480V 60Hz 47A 22kW

 Eaton DH1-34140DN-C21C PowerXL Variable Frequency Drive 480V 3Ph 100HP 400Hz

 Allen Bradley 1395-B71-C1-PZ /B Bulletin 1395 DC Drive 51A 30HP 500VDC

Allen Bradley 1397-A050N-HA2 Bulletin 1397 DC Drive 460V 3Ph 50/100HP 180A

TESTED Allen Bradley 20BD125A3ANNACD0 /B PowerFlex 700 AC Drive 480V 100HP 125A

ABB ACS800-U1-0120-5D150P901 AC Drive 3-Phase 120HP/90kW 155A 380-500VAC

Allen Bradley 1395-B73-C2-P50 /B Bulletin 1395 DC Drive 50HP 500VDC 88A

Allen Bradley 1395-B69-C1-PZ /B Bulletin 1395 DC Drive 20HP 500VDC 36A 60Hz

Allen Bradley 1395-B72-D2-P50 /B Bulletin 1395 DC Drive 500VDC 460VAC 40HP 67.2A

Allen Bradley 1395-B73N-D2-P10 /B Bulletin 1395 DC Drive 480VAC 500VDC 50HP

Rexroth HDS03.2-W100N-HS84-01-FW Drive Controller 60A 430-670VDC R911190138

Allen Bradley 1395-B71-C1-PZ /B Bulletin 1395 DC Drive 500VDC 460VAC 30HP 10A

ABB ACS800-U1-0120-5D150P901 AC Drive 3-Phase 120HP/90kW 155A 380-500VAC READ

Yaskawa CIMR-AU2A0169FAA A1000 AC Drive 60HP 3Ph 169/145A 200-240V 50/60Hz

 ABB DCS800-S01-0125-05 DCS800 Series DC Drive 610VDC 125A 230-525VAC

TESTED Siemens 6RA2474-2FV62 Simoreg Microprocessor DC Drive 460VAC 3Ph 175A

Allen Bradley 1336E-B040-AN-EN-GM5-L6 /F 1336 IMPACT Adjustable Frequency Drive

 Allen Bradley 1336F-B060-AA-EN-GM1-L6 /A 1336 Plus II AC Drive 480V

 SEALED Allen Bradley 20F11ND077AA0NNNNN /A PowerFlex 753 AC Drive 60HP 3Ph

 Allen-Bradley 20P41AD019RA0NNN /A PowerFlex DC Digital Drive 10HP 19A 3PH

Allen Bradley 1397-A050N Bulletin 1397 DC Drive 230V 50HP 15A 3Ph 50/60Hz

 Allen Bradley 20F11ND077AA0NNNNN /A PowerFlex 753 AC Drive 60HP 3Ph READ

ABB ACS800-U1-0100-5D150K454L508 AC Drive 100HP 75KW 3PH 380-500VAC READ

Bardac PLX85/205 4-Quadrent Regenerative Digital DC Drive 460V 3Ph 125HP 500VDC

 Allen Bradley 20BD034A3AYNACB0 /A PowerFlex 700 AC Drive 25HP 34A

ABB DCS800-S01-0125-05 DC800 Series DC Drive 610VDC 125A 230-525VAC

 ABB EHDB360C-1L22 Spectrum Drive Contactor Solid State 360A 600VDC 3P

 Allen Bradley 20P41AD100RA0NNN /A PowerFlex DC Drive 460VAC 3Ph 60HP 100A

Lenze EVD4908-E 4900 Drive 400V 50/60Hz

Bardac PLX115/270 4Q Digital DC Drive 150HP 432-500VDC 200-270A 460-480VAC

 Kollmorgan S61000-550 Servostar 610 Servo Drive 230-480VAC

 Allen Bradley 20G11ND022AA0NNNNN /A PowerFlex 755 AC Drive 22A 11kW/15HP 3Ph