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

PAULUHN WATERTIGHT RECEPTACLE 2652U

PC Connection Cable for RS232/485 Cutter LM9028

Pc connection cable for RS232/485 interface LM9028

PC-1000 ALARM DISTRIBUTION BOARD 10/25

PCB 1352.007.05

PCB1127-0-C PCB CARD 12907-1721

PCB2000 A02-R03 PCB CARD

PCE ELECTRIC 023-4

PEES COMPONENTS AN528 SERVO AMPLIFIER CARD

PEILO TEKNIKK PLC 1002 PLC-OUT PCB CARD 891122

PEILO TEKNIKK PLC 1003 EMERGENCY CONTROL ON-OFF PCB MODULE

PEILO TEKNIKK PLC 1003 PLC-BU PCB CARD 900124

PELCO PCB1500529 RECEIVER PCB CARD RX90001000 REV.K

PELCO PCB9000562 PCB CARD REV.G

PELCO PCB9000563 MATRIX INPUT/OUTPUT CARD CM8504 REV.H

PELCO RK5PWR-120 POWER SUPPLY REV. A1

PELLERIN MILNOR 08BSPCB SERIAL PROCESSOR BOARD 90532 REV A

PEM POWERTEK RCTI-3PH CURRENT TRANSDUCER 7751-3693

PEM-TECH PT 950B LEL MONITOR PCB CARD PT877 REV 2

PEM-TECH PT 950B PPM H2S MONITOR PCB CARD PT877 REV 2

PENDELGEBER PE-WD-01/GS120 POSITION FSG TILT SENSOR

PENN JOHNSON CONTROLS P499AGJS551 ELECTRONIC PRESSURE TRANSDUCER 1373.337

PENNY & GILES D21020/VAR16 PRECISION POTENTIOMETER

PENNY & GILES D23588 ISS 1 PRECISION POTENTIOMETER WITH KAMEWA GT1BS PCB CARD

PENNY & GILES SLS320/0250/L/66/01/N LINEAR DISPLACEMENT SENSOR

PENNY&GILES SLS220/0010/0K4 KD19546 LINEAR DISPLACEMENT SENSOR

PEP ASM3-CXC MODULAR COMPUTER 16258

PEP ASMC1782 PCB RACK MODULE

PEP CXM FISO MODULAR PCB CARD CXM-SCSI 31.125-1130.1

PEP VBP2-AL VME ADAPTER PCB CARD 31.048-2000.2

PEP VME-BUS VBP2-9 BACKPLANE BOARD 31.048-2009.1

PEP VMOD-2D MODPACK CARRIER BOARD 31.112-4010.1

PEP VSBC-4 PCB CARD MODULE 31.125-1010.1

PEPPERL & FUCHS 52FY31-V4A

PEPPERL & FUCHS CJ10-30GM-WS

PEPPERL & FUCHS NBB15-U1-E2

PEPPERL & FUCHS NBB5-F33M-E2

PEPPERL & FUCHS NCN50-FP-A2-P1

PEPPERL & FUCHS NJ2-12GM-N

PEPPERL & FUCHS NJ8-18GM50-E2

PEPPERL & FUCHS OBT40-R101-2P1-IO-V31

PEPPERL & FUCHS UB6000-F42-E6-V15

PEPPERL & FUCHS VDM2815LIO73C110122

Pepperl + Fox DK20-2497 (/49) Pressure Mark Button / *Part No.: 418086

Pepperl + Fox Inductive Sensor NBB15-U1-E2 / *Part.No.: 194767

Pepperl + Fox Inductive Sensor NBB20-U1-E2 / *Part.No.: 194771

Pepperl + Fox Inductive Sensor NJ10-30GM-N / *Part.No.: 145805

Pepperl + Fox K-System Separator Converter KFD2-CD-EX1.32-8

Pepperl + Fox NJ15-M1K-A2 / *Part.No.: 222494 Proximity Switch Sensor

Pepperl + Fox switching amplifier KFD2-SR2-Ex2.W / *Part.No.: 132960

Pepperl + Fuchs DK20-2497 (/49) Pressure Marking Switch / *Part No.: 418086

Pepperl + Fuchs Relay KFD2-SD-EX1.48 / 072044

Pepperl + Fuchs Relay Relay KFD2-SD-EX1.48 / 072044

Pepperl+Fox Inductive Sensor NBB20-L2-A2-V1 / *Part.No.: 187548

Pepperl+Fox Inductive Sensor NBB20-L2-B3-V1 / *Part.No.: 226317

Pepperl+Fox Inductive Sensor NBB20-L2-E2-V1 / *Part.No.: 187481

PEPPERL+FUCHS 00432 STR300/1 POWER SUPPLY

PEPPERL+FUCHS 014947 NJ2-6,5-40-E2 INDUCTIVE SENSOR PNP 2MM OPERATING DISTANCE

PEPPERL+FUCHS 01669 WE 77/EX-2 TRANSFORMER ISOLATED AMPLIFIER - 110V

PEPPERL+FUCHS 047188 10-11231IR-1800-4M INCREMENTAL ENCODER

PEPPERL+FUCHS 09714 4NE 02 I/O MODULE

PEPPERL+FUCHS 09724 DRIVER UNIT,MULTIPLEXER, TYPE EVD-T16

PEPPERL+FUCHS 098952 RV178N-10CK2A31N-00360 ENCODER

PEPPERL+FUCHS 106556 PROXIMITY SWITCH

PEPPERL+FUCHS 106558 INDUCTIVE SENSOR

PEPPERL+FUCHS 126660 RHI58N-0BAK-1R31N-00500 ENCODER

PEPPERL+FUCHS 127442 ML7-55/59/102/143 PHOTOELECTRIC RETRO-REFLECTIVE SENSOR

PEPPERL+FUCHS 16982 FJ7-N NAMUR INDUCTIVE SENSOR, 7MM FLUSH

PEPPERL+FUCHS 17132 PCB TYPE ES 08

PEPPERL+FUCHS 196237 VAZ-LED-70MM-CL STACK LIGHT LED, PERMANENT LIGHT ELEMENT

PEPPERL+FUCHS 25038 S WE74/EX-DW/G SPEED MONITOR

PEPPERL+FUCHS 37368S KFA6-SR2-EX1.W ISOLATED SWITCH AMPLIFIER 230VAC SUPPLY

PEPPERL+FUCHS 415665 LLR04-1,6-0,5-W C3 4.813 1 VISOLUX GLASS FIBER OPTIC SENSOR

PEPPERL+FUCHS 415878 LLE 04-116-0,4-WC3 SENSOR

PEPPERL+FUCHS 418130 M L5-T-KSU VISOLUX PHOTOELECTRIC SWITCH

PEPPERL+FUCHS 419117 ML4.1-8-400/46/95/110 PHOTOELECTRIC SENSOR

PEPPERL+FUCHS 419247 ML 4-8-H-M-1348 VISOLUX PHOTOELECTRIC SENSOR

PEPPERL+FUCHS 42986 CJ8-18GM-E2-V1 PROXIMITY SWITCH CAPACITIVE 8MM 10-36VDC

PEPPERL+FUCHS 71801 Z-SERIES SAFE SNAP BARRIER

PEPPERL+FUCHS 71938 Z728.H-RSC ZENER BARRIER

PEPPERL+FUCHS 805865 FIBRE-OPTIC LEAD

PEPPERL+FUCHS 805865 KHR-C02-1,3-2,0-K92 FIBRE-OPTIC LEAD - PLASTIC

PEPPERL+FUCHS 86388 NJ4-12GM40-E2 INDUCTIVE SENSOR PNP 4MM NON FLUSH

PEPPERL+FUCHS AVM58N-012AAR0GN-1213 MULTITURN ABSOLUTE ENCODER 133549 VERS 2

PEPPERL+FUCHS AVM58N-012AAR0GN-1213 MULTITURN ABSOLUTE ROTARY ENCODER 515015

PEPPERL+FUCHS EGC-020 CIRCUIT CONTROL BOARD 71387

PEPPERL+FUCHS EGT-101-13 DUAL CHANNEL TRANSFORMER ISOLATED CURRENT REPEATER

PEPPERL+FUCHS FB 6208 8-CHANNELS DIGITAL OUTPUT MODULE 542111

PEPPERL+FUCHS FB1208B 8-CHANNELS DIGITAL INPUT MODULE 542070

PEPPERL+FUCHS FILED CONNEX RD0-FB-EX4 FISCO/ ENTITY FIELD BARRIER 204715-0011

PEPPERL+FUCHS HPSM/32/MM-01 HART TERMINATION BOARD WITH ELCON HID MUX 2700-A

Pepperl+Fuchs IC-KP-B12-V45 | 125887 RFID control interface, EtherNet/IP comms

Pepperl+Fuchs Inductive Sensor NBB15-U1-E2 / *Part.No.: 194767

Pepperl+Fuchs Inductive Sensor NBB20-L2-A2-V1 / *Part.No.: 187548

Pepperl+Fuchs Inductive Sensor NBB20-L2-B3-V1 / *Part.No.: 226317

Pepperl+Fuchs Inductive Sensor NBB20-L2-E2-V1 / *Part.No.: 187481

Pepperl+Fuchs Inductive Sensor NBB20-U1-E2 / *Part.No.: 194771

Pepperl+Fuchs Inductive Sensor NJ10-30GM-N / *Part.No.: 145805

PEPPERL+FUCHS KC-LED-96-1T-24VDC TIMER COUNTER TACHOMETER 215124

Pepperl+Fuchs KFA5-SR2-EX1.W.LB | 103372 Switch Amplifier

PEPPERL+FUCHS KFA6-SR2-EX1.W SWITCH AMPLIFIER 103374

PEPPERL+FUCHS KFA6-STR-1.24.4 POWER SUPPLY 54270

PEPPERL+FUCHS KFD0-CS-EX1.54 Y207411 + TYCO EXI800 514.001.063

PEPPERL+FUCHS KFD0-CS-EX2.51P CURRENT DRIVER/REPEATER 72149

PEPPERL+FUCHS KFD0-CS-EX2-52 TRANSFORMER SAFETY BARRIER

PEPPERL+FUCHS KFD0-SCS-EX1.55 SMART CURRENT DRIVER/REPEATER 41655

PEPPERL+FUCHS KFD0-TR-EX1 RTD CONVERTER 43691

PEPPERL+FUCHS KFD0-TR-EX1 SIGNAL CONVERTER,INPUT:PT100,OUTPUT:4-20MA,LOOP POWER

PEPPERL+FUCHS KFD2-ELD-EX16 GROUND FAULT DETECTION 98634S

PEPPERL+FUCHS KFD2-GS-1.2W CURRENT/VOLTAGE TRIP VALUE SIGNAL CONDITIONER 38311

Pepperl+Fuchs KFD2-GUT-Ex1.D | 231225 Temperature converter with trip values

PEPPERL+FUCHS KFD2-PT2-EX1-5 POTENTIOMETER CONVERTER 72023

Pepperl+Fuchs KFD2-SD-Ex1.48 | 072044 Solenoid driver, 1-channel

PEPPERL+FUCHS KFD2-SL2-EX2 SOLENOID DRIVER 39267S

PEPPERL+FUCHS KFD2-SR2-EX2.2S SWITCH AMPLIFIER 181284

Pepperl+Fuchs KFD2-SR2-EX2.W | 132960 NAMUR switching amplifier, 2-channel

PEPPERL+FUCHS KFD2-SR2-EX2.W ISOLATED SWITCH AMPLIFIER 132960

PEPPERL+FUCHS KFD2-ST2-EX2 SWITCH AMPLIFIER 109562S

PEPPERL+FUCHS KFD2-STC4-Ex1.H SMART TRANSMITTER POWER SUPPLY 192017

PEPPERL+FUCHS KFD2-STC4-EX2 132952 SMART TRANSMITTER POWER SUPPLY, 2 CHANNEL

PEPPERL+FUCHS KFD2-UFC-EX1.D FREQUENCY CONVERTER WITH TRIP VALUES 231194

PEPPERL+FUCHS KFDO-CS-EX1.54 REPEATER MODULE 207802

PEPPERL+FUCHS KFDO-CS-EX1.54 REPEATER MODULE Y207411

PEPPERL+FUCHS KFU8-USC-1.D SIGNAL CONVERTER K-SYSTEM 188750

PEPPERL+FUCHS KFU8-USC-1.D SIGNAL CONVERTER WITH TRIP VALUE 188750

PEPPERL+FUCHS KHD2-WAC-EX 1.P TRANSFORMER ISOLATED STRAIN GAUGE AMPLIFIER 71621

Pepperl+Fuchs K-Series Isolation Amplifier KW250-R/Ex / *Part No.: 13934S

Pepperl+Fuchs K-Series Separator Circuit Amplifier KW250-R/Ex / *Part No.: 13934S

Pepperl+Fuchs K-System KFD2-RR-EX1 Temperature Repeater

PEPPERL+FUCHS K-System Signal Converter KFD2-CD-EX1.32-8

PEPPERL+FUCHS LB 2103 G DIGITAL OUTPUT MODULE 542186 V 1.51

PEPPERL+FUCHS LB 3101A NON-HART ANALOG INPUT ISOLATOR 541957