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

Marathon 2HP 1740RPM 575V 56HZ-80 DP 3Ph 2.5A 60Hz

Marathon 2HP 3450RPM 575V 56CZ-65 DP 3Ph 2.8A 60Hz NOP

Marathon 3/4HP 1725/1425RPM 100-115/208-230V 56Y 1Ph 12.2/6.1A 60Hz

Marathon 5HP 5400RPM 575V 184TC TENV 3Ph 3.4A 60Hz

Marathon Electric 0.49HP 1725RPM 575V 56C TENV 3Ph 0.72A 60Hz

Marathon Electric 1.5HP 1140RPM 575V 56Y TEFC 3PH 2.1A 60Hz

Marathon Electric 1/2HP 1140RPM 115/230V 56 1Ph 9.0/4.5A 60Hz

Marathon Electric 1/2HP 1725RPM 115/208-230V 56 TEFC 1PH 8.8/4.2-4.4A

Marathon Electric 1/2HP 1725RPM 115/208-230V 56-65 TEFC 1PH 8.8/4.2-4.4A

Marathon Electric 1/2HP 825RPM 208-230V 48Y TEAO 1PH 3.1/1.0A 60Hz

Marathon Electric 1-1/2HP 1425/1725RPM 190/380-208-230/460V 56HC-70 DP Encl

Marathon Electric 3/4HP 1725RPM 575V 56CZ 3ph 1.1A 60Hz

Marathon Electric 3HP 3600RPM 230/460V 90L TEFC 3Ph 7.2/3.6A 60Hz

Marathon Electric AC Motor 1/3HP 1725/1425RPM 100-120/200-240V 48Y

Marathon Electric M5-T2533 1/2HP 1140RPM 575V 56Y 3Ph 1.1/1A 60Hz

Marathon Hydraulic Pump Motor 1/2HP 1725RPM 208-230/460V 56C TEFC 3Ph

Marathon WVF56T34F5334A 3/4Hp 3450RPM 575V 1.3A 3Ph 60Hz RFB

March May AC-5P-MD Magnetic Centrifugal Pump w/Motor 1"FPT 1/2"MPT 3.6m3h

Marconi Electronic Devices CAN11ISM22JX SCR Assembly

Marcus MC1K5V Transformer 1500VA Pri 600V Sec 120V

Marcus MO1KU Control Transformer Pri 600V Sec 120V 1000VA *COSMETIC DMG*

Marcus MO250V Control Transformer 250VA Pri.600V Sec.120V 60Hz *Shelf Wear* NOP

Marcus TPC500A10 Transformer 500VA Pri 600V Sec 240/139V 3Ph

Marel 1524336 V-F Unit

Marflow ISA-VGA-MIO2 Rev. 1 Memory Control Board

MARINE AUTO TELEPHONE ODA-1980-1 PORTABLE TELEPHONE PCB AYU901

MARINE CONTROL TECHNIC MCT WHISTLE CONTROLLER

MARIOFF HI-FOG SPRINKLER SYSTEM 32237

MARIOFF HI-FOG SPRINKLER SYSTEM 32237

Markem Corp 2085115 Imaging Circuit Board

Markem ME3509-191E Printer Motor 9840

Markem-Imaje ME3509-204E 840 Printer Motor

Markem-Imaje ME3528R-354A Laser Printer Controller

Marlin F-080B Compact Flexible Modular Camera 8-36V

Marlok Co. Solitaire Plus PCB-023-100-152 Iss. A Circuit Board

Marposs 3415 Thruvar 5 9246ARG Gauging Head

MARPOSS 6316161711 Power Supply Module AIMU58

Marposs 6421610300 PC Board

Marposs 6737957002 RS232 Serial Cable E4N to PC 9Pin Female 3M NOP

Marposs 6830140204 Circuit Board

Marposs 6830197403 PC Board Module *Missing Clip & Memory Chip*

Marposs 6830199507 Control Card Assembly

Marposs 6840008503 PC Board Module

Marposs 6840010906 PC Board

Marposs 6840013405 PC Board Module *Dmg'd Chip+Missing Clip/Chip/Battery*

Marposs 6840013405 PC Board Module *Missing 4 Memory Chips*

Marposs 6840013405 PC Board Module *Missing Clip & 1 Memory Chip*

Marposs 6840013405 PC Board Module *Missing Memory Chips*

Marposs 6840013405 PC Board Module Missing Memory Chips & Battery*

Marposs 8304850020 E83 Probing Machine Interface Module MISSING CONNECTORS

Marposs 866KCACAB0 Gage Box 16 Port LVDT HBT

Marposs A120 3415159755 LVDT Measuring Cell Transducer w/28" Cable

Marposs A18 3413043502 Transducer Gauge Probe Sensor NOP

Marposs E18 Manual Measurement Gauge

Marposs E48 Interface Unit

Marposs Mida 6871830000 RX-E83 Optical Receiver

Marposs Mida 6871832011 TX-E83 Measuring Transmitter

Marposs Mida 6SW1765 T60S Machine Tool Probe

Marposs VCH1.8/0..9-300/01 Power Supply Stepper Motor

MARSEN BAL2000 LEVEL TRANSMITTER PT420

Marsh HE LCP Ink Jet System Assembly 115VAC 1amp

Marsh LCP-DL LCP Ink Jet Assembly 4amp 120/110V

MARTEK MARINE NAVGARD BNWAS PANEL

MARTENS IW1000-1-0-00 INSULATION MONITORING DEVICE

Martin 100BTB30 Roller Sprocket 15/16”-3"ID 30T 100 Chain *Shelf Ware*

Martin 12CH2264 Hanger 2" Coupling Dia 12" Conveyor

Martin 14CH2266 Hanger 14" Conveyor 3" Coupling Dia NO PLATE

Martin 16CH2266 Hanger 3" Coupling 16" Conveyor

Martin 16CH2266 Hanger 3" Coupling 16" Conveyor MISSING HARDWARE

Martin 3-5V 17 7E Hi-Cap QD Sheave

Martin 3-5V7.50-SF Bushing V-Belt Pulley 7.4" Pitch 3 Grooves Shelf-Wear NOP

Martin 4B94SK QD Sheave 2-5/8"Bore 4 Grooves 9-3/4"OD Damaged Box/Shelf Wear

Martin 5-5V1400-E QD V-Belt Pulley Bushing 12.9" Pitch 5 Grooves 14" OD

Martin 60L100SD Timing Pulley 60T 1/2-2"ID 7.132"OD L Belt 1"Belt Width

Martin 6B44SD 6-Groove QD Sheave Bushed Bore *Cosmetic Damage & Rust*

Martin D60B40 Double Bored Out Sprocket 1-3/8"ID 40T 60-2 Chain 3/4"P

Martin M3-3/4 M334 QD Bushing

Martin P3214M40-2012 High Torque Sprocket 40mm Belt Width

Martin P6814M55 High Torque Drive Sprocket 15/16 to 3 9"B 68T 9/16"P

Martin QRS820A21P Conveyor Chain Sprocket .75-1.5" Bore 21 Teeth

Martin TT50BS-1-7/16 Torque Limiter 5" OD 1-7/16" Bore *Shelf Ware/Rust*

Martonair M/21M/11 Inline Roller-Actuated Valve 1/8" NPT SHELF WEAR NOP

Martonair M/839 Heavy Duty Flow Regulator G 1/2 2.9cv 2.56Kv

MASA DMS-401 Die Monitor System REFURB

MASIBUS 1008V FLOW INDICATOR TOTALIZER

MASIBUS 1008V FLOW INDICATOR TOTALIZER

Maska 3-5V7.50-SF Bushing Bore V-Belt Pulley 7.4" Pitch 3 Groove 7.5" OD

Maska 3-5V7.50-SF Bushing Bore V-Belt Pulley 7.4" Pitch 3 Grooves 7.5" OD NOP

Maska 5-5V14.0(E) QD V-Belt Pulley Bushing 13.9" Pitch 5 Grooves 14" OD

MASTER PROHEAT PH-1200 VARITEMP HEAT GUN

Mastertrace MS10ADIN2R Heat Trace Control

MASTERVOLT BTM-III BATTERY MONITOR 70403163

MASTERWATT JUMO 703043 TEMPERATURE CONTROLLER 70304318214025000

MASTERWATT JUMO 703043 TEMPERATURE CONTROLLER 70304318214025000

Matec 043-0084-00-9 Circuit Board

Matec 043-0274-01-9 Circuit Card

Matec 043-0278-01-9 Memory Board for Socks Machine *Chips Missing*

Matsushita 4FCG-30D-30 AC Gearmotor 1:30 Ratio 14W 55RPM 100V 0.6A 7uF

MATSUSHITA AT4331-R16 PMH TIMER AT4331R16

MATSUSHITA AT4331-R4 PMH TIMER AT4331R4

MATSUSHITA BAV851-1 FLICKER RELAY

MATSUSHITA ELECTRIC AFP33023 National PC FP3 Input Unit 12-24V DC

MATSUSHITA ELECTRIC AFP33103 National PC FP3 Output Unit Relay 2A 250V AC

Matsushita Electric NAiS FP0-C14CRS-A | FP0-C14 Control Unit | AFP02223C-A

MATSUSHITA EUL-NGB15Z2 NOISE FILTER EULNGB15Z2

MATSUSHITA EUL-NGB15Z2 NOISE FILTER EULNGB15Z2

Matsushita NAiS AFP03323-A FP0-E16 Expansion Unit FP0-E16RS-A

Matsushita NAiS AFPG3467 FPΣ Expansion I/O Unit FPG-XY64D2T

Matsushita Panasonic YM-503UB-Y11 Robot Interface Control

MATSUSHITA PMH TIMER AT4111-R1

Matthews Control Keyboard w/LED Screen

Matthews Control Keyboard w/LED Screen *No Side Knobs*

Mavilor Motors MT380.010.2209.Z5 Servo Motor 10VDC/1000RPM 15Nm 13.2A

Max Motion 1HP 1760RPM 575V 56C TEFC 3Ph 1.4A 60Hz

Max Motion 2HP 1740RPM 575V 145T ODP 3PH 2.32/1.15A 60Hz

Max Motion 5HP 3515RPM 575V 184T TEFC 3Ph 4.2A 60Hz

Max Motion MMR050-56C Right Angle Gear Reducer 20:1 Ratio

Max Motion MTR-124FDC Electric Motor 1/2HP 1725RPM 115/230V 56HC

Max Muller MRS080-035-2-10-SPE-AP Motor Reducer

MaxMotion .75HP 1800RPM 575V 56C TENV 60Hz

MaxMotion 0.75HP 1725RPM 208-230/460V 56HC TEFC 3Ph 3.0-2.8/1.4A 60Hz

MaxMotion 1.5HP 1725rpm 575V 56HC TEFC 3Ph 1.8FLA 60Hz

MaxMotion 1HP 1700RPM 208-230/460V TEFC 3Ph 3.32-3.01/1.5A 60Hz

MaxMotion 1HP 1740RPM 575V 143TC TEFC 3Ph 1.35FLA 60Hz Inverter Duty

MaxMotion 1HP 1750RPM 230/460V 802 3ph 2.9/1.45A 60Hz

MaxMotion 1HP 575V 1740RPM 143TC TEFC 3Ph 1.35FLA 60Hz COSMETIC DMG

MaxMotion 3/4HP 1725RPM 575V 56C TENV 3ph 0.88A 60Hz

MaxMotion 3/4HP 1725RPM 575V 56C TENV 3Ph 1.0FLA 60Hz

MaxMotion MPR-152C AC Motor 1.5HP 3450RPM 575V 56HC TEFC 3Ph SHELF WEAR

MaxMotion MPS-124RBFC Motor 1/2HP 1725RPM 575V TEFC 56C 3Ph 0.72A 60Hz

MaxMotion MPSP-204L 2HP 1740RPM 575V 56C TEFC 3PH 60HZ *Missing Fan Cover*

MAXON 136198 EC MOTOR