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。

Reliance Electric 0-51831-2 Current Voltage Card

Athena Temperature Controller IMPD15

Cutler-Hammer EHD3100L SERIES C CIRCUIT BREAKER

1  Cutler-Hammer EHD3100L SERIES C CIRCUIT BREAKER

GE FANUC IC693ALG391 Output Module

Atlas Copco LZB46-A040-11 Pneumatic Motor

ited Electric Controls D1A5T2N Pressure Switch

Festo CPV14-VI Manifold Assembly with CPV14-GE-MP6 Logic Controller

ASCO Tf10A42B Pressure Switch

Copley Controls Servo Drive Model 5211

Transducer Techniques DPM-3 Meter-

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Allen-Bradley Flex Input Module 1794-IA16  1794-TBN

Allen-Bradley 2098-DSD-010 Ser B FW 1.35 Digital Servo Drive

Allen-Bradley 140U-I6C3-C70M Circuit Breaker 70 Amps

Allen-Bradley 25B-D010N114 Ser A FW 7.001 323-528V 10.5A 5.0HP 4.0kW AC Drive

GE TED136030 30 A Industrial Molded Case Circuit Breaker

Allen-Bradley Magnetic Contactor 1100-BOD93 1500V

Allen-Bradley 802X-NP7 Limit Switch

Deltron Roxburgh Filter 23 Amp MIF323

Allen-Bradley Timing Relay 700-PSCA1

Siemens Sitor 6PA1001-1BC Controller Card

Durr Behr E 0324 0006 Controller

Honeywell 51ML7 Microswitch Rotary Limit switch

Square D 400A Circuit Breaker LHL3640030DC1616

Electroswitch 8332A64G01 Switch

Fanuc Robotics EE-4696-122-014 Purge Connector Cable

Fanuc P-500 NE-2012-934-001 Robotics Cable 12 Feet

ROBICON 463666.00 RELAY BOARD

GE IC9445C207 LIMIT SWITCH HEAVY DUTY

GE Card PC Logic Element DS3800HLEA1C1C

1 BEC 735-HV ENCODER

Lenze Americas MCS 06 41LRS0B0-A11N-ST5S00N-R0SU 2.9A 0.64KW 0.86HP Servo Motor

Lenze Americas MCS06F41LRS0B0-B11N-ST5S00N-R28U 0.51KW 2.9A 0.68HP Servo Motor

Becker 901367 Vanes for Rotary Vane Vacuum Pump

Bailey Controls 6636997L1 Commication it Termination Module

Ashcroft nB471S Pressure Switch

NSD MRE-32SP062SAC Absocoder Absolute Encoder

Square D 9013-ASG-8 Pressure Switch

Banner Engineering MSE2424Y Mini-Screen Safety Light Curtain Emitter

Omron 42687-0240 / MS4324BX STI MiniSafe Safety Light Curtain Emitter

Destaco DPL-2535 Long Stroke, High Grip Force Parallel Gripper

Leuze Electronics 520019 TNT 35.2 24VDC 4A Safety Relay

Mayr ROBA-RN-0/100.110 Safety Clutch

Radio Energie REO 444 R1 / CA Dynamo Tachymetrique Tachogenerator

Georg Fischer Signet 198150149 PA21 Pneumatic Actuator Valve w/ Stroke Limiter

1 KEYENCE CV-130 VISION SYSTEM CONTROLLER

Square D Interlock Switch Kit EK3061

Lambda LNS-W-15 Power Supply

Gould Modicon AS-506P-001 Memory Board

REO Elektronic Frequency Controller REOVIB-MFS268

GE 7610023 REV E PRC-100 Interface Board Rapper Control

Bussmann FWP-700A 700 A 700VAC High Speed Fuse

Joslyn Clark 5M-054 Contact Kit

Allen-Bradley Temperature Control 837-A4J

ESCORT MEMORY SYSTEMS HS860BH-1 PC BOARD

Square D Relay Magnetic Current 9055-AO121R

MOORE INDUSTRIES DSX/4-20MA/0.0-18.0/1.OVLPOTH W HOFFMAN A51 ENCLOSURE

STI MC6AC-0016 Safety Mat Controller

Allen-Bradley 1746A7B Rack Chassis Module

GE Circuit Breaker TFJ236200 200A 600VAC

Parker Servo Driver Card VRD350

Numatics 153RS115J015W00 REGULATOR VALVE

Numatics 34CCL441O000000 Manually Operated Valve

Zetec Crack Probe 4MM OD Z0000190

FACTS ENGINEERING F4-16DA-1 OUTPUT MODULE

Allen-Bradley 1747-L20A PROCESSOR IT-

Simens Drive Board 04022511

SCHMID WEZEL 3030SA-2 AIR PUMP

SIMCO POWER SUPPLY 4000464

ABB 57411503 PULSE AMPLIFIER BOARD

Bailey Controls NTMP01 Termination it

OVATION 5X00119G01 INPUT MODULE-

Allen-Bradley 22B-D6P0N104 PowerFlex Variable Frequency AC Drive

Sprecher  Schuh CA6-110 Contactor

Kawasaki Robot Parts 50999-1650 Printed Circuit Board

Gould Modicon AS-M507-008 REV A2 Memory Module

Honeywell DC5061-0-1A00-330-00-0211 Temperature Control

Westinghouse MCP331000CR Circuit Breaker W/ EL3100R Limiter

MOORE SPT/TPRG/PRG/U TRANSMITTER

CCS Dual Snap Pressure Switch 604G7-7029

Anziehmoment Power Speed Torque Limiter F50010324-000

Bently Nevada 21504-000-020-10-02

Vickers Pressure Switch 736349

BP 003 00

1 PRINTRONIX 140376-901 PC BOARD

Consolidated Control / Servo Kinetic Spirodisc Encoder R377J2

MAHO Board 321NP Output 4022 226 3531 CNC

80-5020FD-GP

04 Scale Base Repair Transducer 20000023C6

Gould Modicon 43P0021-001 Power Supply

MSC Tuttlingen I/O Extension BK MIKRO 4

Sanken PC Board DK24184 CL6610579

Thomas  Betts Russellstoll 7418 Connector

Ametek BBVRR1RHYDLXBX90651 Bargraph

CONTIWEB 4R318350 OUTPUT CIRCUIT BOARD 2R706364B

Robicon 466042.02 PC Board

Hyperpulse D7-940-041-0 Industrial PC Board

Encoder Products 755A 1250 CPR Encoder

Westinghouse IL 1250 2884 IT 10 FIG 2 Oil Seal Ring 5-7/16" ID 5/8" THK Brass 5

Robicon 466043 Control Card

Bosch 0811404035 Solenoid Valve

1 ADEPT TECHNOLOGY 1031058020 BINARY I/O BOARD

Square D I-Line FH36060 Circuit Breaker

1  Square D I-Line FH36060 Circuit Breaker

SCHNEIDER AUTOMATION INC 140 CPS 114 10 INPUT MODULE

Joslyn Clark Relay 5UU4-76

Cutler-Hammer 8161B-1X2 SERIES B1 PHOTOELECTRIC CONTROL BOARD

Allen-Bradley Keyboard PLC-2 1770-TQ

1 Grossenbacher Ch-8307 Ac-Commander Control

Parker D1VW004CNJGLJQ7Y94XB1029 Hydraulic Solenoid Valve

COOPER SWITCH CONVEYOR CONTROL AFUO33 10

MERRICK BMKM21735-1 PC BOARD

Ingersoll Rand 30487052 Discharge Valve for IR Air Compressor

Dynapar Tachometer H560512234303 Pulse

1 ELECTROMATIC SB 135 TIMING RELAY

Custom Components Switches 646GZE11 Pressure Switch

ASCO Jkp8342G001 Solenoid Valve

Numatics Hand Lever Valve 32HLS641O

Square D Class 9070 K1500D1 Industrial Control Transformer

1 Allen-Bradley 1745-LP151 PROCESSOR MODULE

 1 Allen-Bradley 1745-LP151 PROCESSOR MODULE

SMC Interface Module Serial EX230-SDN1

Square D Reed Switch Limit Switch 9007-C84B2 C084

Vickers Spool 220344

ELECTRONICS INCORPORATED 362A-P SHOT FLOW CONTROLLER

Siemens 6SN1118-1NH00-0AA1 Control Module

Foxboro 2CDA-S1 Display Station

4 Moore Control its SPT-TPRG-PRG-U

GE 7610021-C RAPPER CONTROL POWER MODULE

Parker Variable Frequency Drive 10G-43-0120-BN