福建中立恒自动化设备有限公司
主营产品: 大型DCS系统备件,进口工业机器人备件,大型伺服系统电机驱动器,变频器,传感器,安全栅,编码器,电磁阀,流量计等机械或电气部件产品
推送:0100-00403省市县区域/直送2024全+境+派+送

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。

Allen Bradley 440R-P23071 Ser. B Guardmaster MSR22LM Safety Relay 2NO 1NC 24VDC

Teledyne Coax Switches CCR-38S38C-TDS Electro Mechanical Relay

Tyco 1423170-4 Agastat Timing Relay Model E7022AD004 5-50 Second Delay 120V Coil

Thomas & Betts E7022AC004 Agastat Timing Relay 1.5-15 Seconds 120V Coil

General Electric 12IAV51A1A Time Delay Voltage Relay Type IAV 115V GEH-1814

Pasternack PE71S6409 SP6T Electromechanical Relay Normally Open Switch

Cole Parmer PH/ORP300 Temperature DIN Controller 1/8" DIN 2 SPDT Relays

GE Hitachi Nuclear Energy 12HFA151A1H, HFA, 250V Relay, GEK-45484

Allen Bradley 700-R440A1 Ser. B Type R Sealed Switch AC Relay 4NO 4NC 115-120V

Alstom Brown Boveri, ABB R 102 171 Separator Relay R102171

Tyco Agastat E7012BD004 3-1423168-0 Timing Relay 240V DC Coil 5-50 Sec.

Schneider ElectriPSFB5111 Safety Relay 24V MISSING COVER

Allen Bradley 700-HPS2Z24 Ser. A Safety Relay PKG OF 10

ABB Taylor 1733FZ14000B Mod 30 Interposing Relay Panel

Allen Bradley 700-PK00A1 Ser B Control Relay Type PK w/ 115/120V Coil

NCC National Controls Corp T1K-00180-462 Solid-State Time Delay Relay 1.8-180sec

Allen Bradley 440R-N23059 Ser. A Guardmaster Safety Relay Switch Input MSR16R/T

Westinghouse 3359C77G01 I/O Relay Driver Printed Circuit Board

General Electric 12HFA151B8H Relay 240V 60CY 305-12692-CFRX

Struthers-Dunn 219ABX69PL Relay 24VDC

Struthers-Dunn 6210-4906-14 Reversing Starter Relay Control, 20A Contactor

Pilz PNOZ yio2 2DI 3NO Modular Safety Relay Expansion Module 24VDC 2.3W 2A000015

Potter & Brumfield JM-2110-22 Wetted Contact Relay 9339

ABB Jokab Safety 70-300-03 Smart-SM3 Relay

Electro-Matic MUSIC9.PCB Music Relay Breakout Board

Electro-Matic MUSIC9A.PCB Music Relay Breakout Board

Pilz PNOZ 1 230 V AC 3S1O Dual Channel Safety Relay 475650

Allen Bradley 700DC-P440Z2 Ser. D Type P Control Relay 230-250 VDC

C.P. Clare & CO HG3A1004 Mercury Wetted Contact Relay

DIN Rail Safety Relay Module 45209201-A

General Electric 12IAV51A1A Type IAV Voltage Relay, 115V

Eaton BST-OFF Industrial Control Relay, Solid State Timer 0.1-30 Sec 1255C38G25

Emerson Fisher R3580XRS022 Relay Assembly Replacement Kit

General Electric 12IAV51A1A 115V Type IAV Voltage Relay

Pilz PNOZ e3.1p 24VDC 2n/o Standalone Safety Relay 2-Channel Auto-Start 774139

NCC National Controls Corp T1K-00300-462 Solid-State Time Delay Relay 3-300sec

Cutler-Hammer D26MRD524B1 Type M Relay w/ Magnetic and Rear Deck

Westinghouse 1529444 Coil Relay Control 125V

Omron G9SA-321-T075 Safety Relay Unit 24V

Struthers Dunn 6210-40-06-11 Relay 20A 550VAC Open 115VAC 60Hz Coil 4006-11

BanneS2ro Expandable Safety Controller Dual Relay Output Module 85075

Pilz PNO2.2 24VAC/DC 2n/o Safety Relay 774607

Eaton Cutler Hammer BF84F Control Relay 300V 10A 8-Pole

Matrix Systems 7000/8799 Coaxial Relay Module 7000 Series

Siemens 3RB2026-1PB0 Overload Relay Class 10 1-4A 600VAC

NCC National Controls Corp T1K-00600-462 Solid-State Time Delay Relay 6-600sec

Sick UE10-3OS3D0 Safety Extension Relay Plug in Screw Terminals SIL CL 3 6024918

Bosch 3842242750 Connection Relay Base Module 8-Port

GE Fanuc IC200UDR005-BC VersaMax Micro Controller 16 DC Inputs 11 Relay Outputs

Allen Bradley 193-EB1FB Ser B Overload Relay 3.7-12A Current Range 3-Pole

1  Allen Bradley 193-EB1FB Ser B Overload Relay 3.7-12A Current Range 3-Pole

Agstat 2122DH116NF Miniature Timing Relay 1-30 Seconds

Pilz PNOZ s4 24VDC 3n/o 1n/c Safety Relay 750104

AEG SH05K-31-DD 31E Mini Contact Relay 4TQE583043R0000 SMALL CHIP IN PLASTIC

Matrix Systems 7610-DR-50-C12V Coaxial Relay Module 7000 Series 11-Port

Allen Bradley 440R-M23143 Ser. B Relay Single Function Safety 24VDC

General Electric 12HFA151A2H Auxiliary Relay Type HFA 125V

Keyence 507-P-C02-01 Relay Module Board

Red Lion PXU100B0 PID 1/16 DIN Universal Input Relay Output 24VDC

Pilz PNOZ s7.1 24VDC 3n/o Safety Relay 24VDC 750167

Montrac MT57023 Electric Cam Switchable Off 722562

Pilz PNOZ1 24VAC 3S10 E-Stop Safety Relay 6VA 50-60Hz 475600

Electro Corporation PL300 Prox Control AC/DC SS Relay Module

Matrix Systems R7410-S Coaxial Relay Module 7000 Series 10-Port

NCC National Controls Corp T1K-00180-461 Solid-State Time Delay Relay 1.8-180sec

E. Dold & Sohne 453254 DC Transformator Knick Relay Typ 15A

Pilz P2H1P 24VDC 3n/o 1n/c 2so Safety Relay 77340

ABB 2TLA050202R1030 LineStrong2 Safety Switch 2TLA020054R1400 Relay TINA 3A PS

Allen Bradley 898P-P38PT-B10 B Distribution Box 898PP38PTB10B

Assembly Automation 002814 Rev D Relay Box C 24VDC

ABB Assembly Lug 32959300000.185.18.00 TG Contact

Okuma E4809-770-032-2 Relay Board1 TPB-H.VO

1  Okuma E4809-770-032-2 Relay Board1 TPB-H.VO

EATON AR440AR Y 120VAC Industrial Control Relay 600V 10A

Pilz PNO9 120VAC/24VDC 7S2O Safety Relay 774605

ABB 2TLA010033R2000 Safety Relay

Ircon ScanIR II 17002-2 Rev E Relay I/O Processor PCB

ABB NL40E-38 Contactor Relay 1SBH143001R3840

ABB NLE22E-38 Contactor Relay 1SBH143001R3822

Eberline 11552-D01A Alarm Relay for Radiation Monitor

Allen Bradley 100-C16DJ400 Ser. B General Purpose Contactor w/ 100-F Ser.A Relay

NTS 812-1-6-07-0 Series 812 Time Delay Relay Module, Timer

BBC Metallic Bellows C1 1225R408735 For Separating Relay R304088R1

ABB Lug Assembly 329367 00000.185.17.00 TG Contact

Struthers-Dunn Inc. Rev. Starter Cat 6210-4006-11 120V 60cy 20A 550VAC

Macromatic SS 50222-16 Solid State Time Delay Relay

IAI PCON-CG-20PI-EC-0-0 External Drive-Power Cutoff Relay

Matrix Systems 7710-DR-50 Coaxial Relay Module 7000 Series 10-Port

Westinghouse AR440AR Industrial Control Relay 600V 10A 4NO 4P 120V Coil

S & A Inc. 0000531-03 PCB Board w/ Heat Sinks and AC Solid State Relays

Takamisawa 0208L2 Circuit Board VS 24MB 24VDC TV-5

General Electric 12HFA151A12H Auxiliary Relay Type HFA 110V GEK-45484

Kuhnke I1540.2 Current Monitoring Relay

Matrix Systems 7000/8811A Coaxial Relay Module 7000 Series

Matrix Systems 7610-DR-50-12V Coaxial Relay Module 7000 Series Option DR 50 12V

Allen Bradley 700S-CF620DVC Ser A Safety Relay 3 NO 1NC 120V

Allen Bradley 440R-M23084 Ser. B Guardmaster MSR138.1DP Monitoring Safety Relay

Pilz PNOZ s4 24VDC 3n/o 1n/c Safety Relay 750104 MISSING TERMINAL

National Instruments NI USB-6525 Digital I/O Relay Device 193283C-01L

General Electric 12HFA151A1H Auxiliary Relay 250V

Teledyne Relays CCR-33S30-T Coaxial Switch

Matrix Systems 7304-DR-IS-CM Coaxial Relay Module 7000 Series Options DR IS CM

Siemens 3ZX10120RH11-1AA1 Relay, 3RH1911-FA11 Contact Block, 60947-4-1 Starter

Agastat 7012BIL Timing Relay 240V 60Hz 6-60 MIN

SprecherSchuh CS7E-31E-24E Standard Control Relay 4 Pole

ABB EF19-6.3 Electronic Overload Relay 1SAX121001R1104

Electromatic RP 130 240-4-0 Solid State Relay

Cutler Hammer D50ER14 Digital Expander 14 I/O 24VDC Inputs/Relay Outputs

NCC National Controls Corp T1K-00300-461 Solid-State Time Delay Relay 3-300sec

Eaton ELC2-PB14NNDR Logic Controller 8 Digital Inputs 6 Relay Outputs

1  Eaton ELC2-PB14NNDR Logic Controller 8 Digital Inputs 6 Relay Outputs

Allen Bradley 193-1EEBB Ser. A Electronic IEC Overload Relay Manual Reset 10-20T

Weigh-Tronix RCU-7 Relay Enclosure D26322-0014 0260210 REV G 04-43

Matrix Systems 7610-DR-50-12V Coaxial Relay Module 7000 Series BENT CONNECTOR 10

Hurco 415-0224-905 Rev B Control Relay 4 CRP4 Circuit Board 414-0224-005

Asco 222-182-026-D 250 DC Solenoid Valve Coil 222-182-26-D 240V

Matrix Systems 7704-DR-50 Coaxial Relay Module 7000 Series Options DR 50

Euchner ESM-BA202 Safety Relay 085611 ESM-BA2

Struthers-Dunn 219XBX69PL Relay 24VDC 10A 120VAC

Square D 9050JCK26V20 Ser. D Electrical Timing Relay 0.1 - 10 Minutes

Carlo Gavazzi DPC01DM48 3-Phase Monitoring Relay 250VAC, 24VDC

1  Carlo Gavazzi DPC01DM48 3-Phase Monitoring Relay 250VAC, 24VDC

Westinghouse AA22A Thermal Overload Relay

Pilz P2H1 24VDC 3S 1O Safety Relay 24VDC 2.5W 774340

Daytronic 3370 Strain Gage Indicator w/ DC60S3 Solid State Relay

1  Daytronic 3370 Strain Gage Indicator w/ DC60S3 Solid State Relay

Allen Bradley 809S-C1-10A-48 Ser. B MachineAlert Current Monitoring Relay

Pilz 4405B13 Safety Relay Circuit Board

Schneider Electric Twido TWDDRA8RT Relay 8 Output Expansion Module

Jokab Safety JSBT4 Safety Relay 24VDC 250V 6A

Advantech ADAM-4068 8 Channel Output Relay Module

Chromalox CS3-02548-200 SSR Power Control F065568


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