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。

MTE COMPONENTS UCO 5 CONTACT BLOCK 17A 660V MAX   

CRYDOM B513F-2 POWER MODULE 25A, 280VAC, FW DIODE, ISOLATION BARRIERS, NOS

MURR 85162 SWITCH MODE POWER SUPPLY MCS-B IN 95-265VAC OUT 24VDC,

ALLEN BRADLEY 100-C12Z*10 SERIES A STANDARD CONTACTOR

 HUBBELL MALE TWIST LOCK PLUGS 250V 15A

FURNAS 42BE15AFL1 600 Vac 30 Amp 2 Pole CONTACTOR, 120 coil voltage

TELEMECANIQUE CA2-DN40 40E CONTACTOR COIL 120V 60Hz 4 POLE  

SCHAFFNER FN2070-12-06 110/250Vac 12A@40°C SINGLE PHASE POWER LINE FILTER MODULE

TELEMECANIQUE LC1 D0910 CONTACTOR 3 POLE 25A 4kW 400V 3NO NOS

OPTO 22 SNAP I/O SNAP-IDC5-SW 4 CHANNEL SWITCH INPUT

BECKHOFF KL2408 DIGITAL OUTPUT TERMINAL 8-CHANNEL 24VDC

SIEMENS 6EP1321-1SH03 LOGOPOWER PWR SUPPLY INPUT 100-240AC OUTPUT 12 V/1.9 A DC

ABB FPTN410007R0006 IEC CONTACTOR, /NOS

ABB OT16ET3 GENERAL PURPOSE DISCONNECT SWITCH, 50-60 Hz  

HUBBELL TWIST LOCK SET FEMALE/MALE CONNECTOR BODY 30A 125V INSULGRIP

OMRON E3C-GE4 PHOTOELECTRIC SWITCH AMPLIFIER SENSOR CONTROLLER  

2PCS OMRON G7S-4A2B RELAY 24VDC INSIDE P7S-14F 6A 277VAC~MAX RAIL MOT,

KEYENCE FS-N11CP FIBRE AMPLIFIER M8 CONNECTOR MAIN IT PNP 12-24Vdc

 IDEC HW-F10 KEYSWITCH TWO TERMINAL

OMRON J7KNG-10-01 CONTACTOR J73KN-B-01 AUXILIARY CONTACT J74KN-C-RC24 SUPPRESSOR

Y BAG OF ASSORTED RELAYS, OMRON MARCON, MATSUSHITA, TOSHIBA  MORE, 2

DUCT-O-WIRE PB-1A SINGLE SPEED INSERT 2 BUTTON 1 SPEED - 2 N.O.

WALTHER TYPE 410 PANEL MOT SOCKET 230/400V 16A 3PNE

SKY ELECTRONICS SKAP-3C RELAY COIL 120 V AC 13 AMP 28 VDC PLUG IN 11 PIN w BASE

NORGREN QM/31/2 MAGNETIC REED SWITCH 240VAC SOLID STATE /NOS

ABB FPTN410007R00009 IEC CONTACTOR, / NOS

OMRON H3CR-A8 / H3CRA8 SOLID STATE TIMER, 8 PIN AC100-240V / DC100-125V,

SIEMENS 3VU1300-1MD00 START MOTOR PROTECTOR 0.24- 0.4A 3POLE 1NO/1NC

FOXCONN E124936-B SERIAL SATA MB M8865 BLUE CABLE AWM2725 LGTH 22" 7 PIN 10 PCS

 OMRON XS24-D421-101-A POWER SUPPLY CONNECTOR, MALE TO FEMALE 4 POS, 1M

SIEMENS SIRIUS 3RH1911-1FC22 AUXILIARY SWITCH BLOCK IEC60947 VDE 0660 24 dc 10A

HIWIN MGN12CH MINIATURE LINEAR GUIDEWAY 12mm w/ 60mm RAIL,

SCHNEIDER ELECTRIC C60 10A MULTI 9 STANDARD BREAKER, 277V AC, 50/60HZ, MGN61308

 BANNER SM621LVAG ECONO-BEAM SENSOR P/N 26107 NOS

); 15A

MURRELEKTRONIK 7000-46041-8020015 MALE TO FEMALE M12 CONNECTING CABLE, 6 PIN

OPTO 22 G4PB8 CIRCUIT BOARD w/ OPTO 22 G4 IDC5D INPUT  G4 ODC5R OUTPUT

 POTTER  BRUMFIELD TYCO ELECTRONICS SSR-240D25 SOLID STATE RELAY

MATSUSHITA ELECTRIC NATIONAL BC-50N 3-POLE CIRCUIT BREAKER, 600V 15A

DWYER 1910-1 DIFFERENTIAL PRESSURE SWITCH 0.40-1.6" 15A 125, 250, 480VAC,

DANAHER MOTION 102582 ADD-ON FAN TYPE BV for SR406 24V DC 0.16A KW: 32/06

SMC EZM131HF-K5LZ VACUUM GENERATOR w/ VJ114-5LOZ SOL VALVE 0.7MPa 24Vdc

IDEC IZUMI PS5R-SF24 120W SWITCHING POWER SUPPLY, 24VDC/5A OUT

OMRON CJ1W-CIF11 SYSMAC OPTION RS-422A CONVERTER INTERFACE IT 5Vdc

FESTO DSNU-16-50P-A PNEUMATIC CYLINDER 10BAR / 145PSI

ALLEN BRADLEY 1489-M2D100 SER.D 400Vac 10A 2 POLE TRIP CURVE D BREAKER

DESTACO 201-USS-1190 VERTICAL H DOWN CLAMPS FLANGED BASE

NORGREN SPCDN/60524 SHUTTLE VALVE EXHAUST FLOW REGULATOR 3/8" NPT

SIEMENS 5SJ4103-7HG41 MINI CIRCUIT BREAKER 240Vac 14kA 1 P 60Vdc 10kA 3A

CRYDOM HD4850 SOLID STATE RELAY SSR IN: 3-32Vdc OUT: 480Vac 50A

CRYDOM HD4850 SOLID STATE RELAY SSR IN: 3-32Vdc OUT: 480Vac 50A

TURCK MS13-121 Ex0-R MULTI SAFE SWITCHING AMPLIFIER 120Vac OUT 250Vac 4A

ALLEN BRADLEY 1489-M2D040 SER.D 400Vac 4A 2 POLE TRIP CURVE D BREAKER

WILKERSON R00-02-000 MINI REGULATOR 1/4" AIR

SIEMENS 3RT1015-2JB42 POWER CONTACTOR AC-3 7A 3kW / 400V, 24Vdc

KEYENCE LV-21AP DIGITAL LASER SENSOR  KEYENCE LV-H32 REFLECTIVE SENSOR HEAD

ALLEN BRADLEY 100-C23E*300 CONTACTOR 600V RATED 23A 230V w/ 100-F BLOCK

KUHNKE IVERSAL UF3F-230VAC N RELAY ON COMAT 10A 380V 10 POLE SOCKET

SIRON , T022 GENERAL USE TERMINAL BLOCK 16 BIT, USE WITH 20P MIL CONN.

 POTTER  BRUMFIELD PM-17DY-24 OPEN STYLE POWER RELAY 4PDT 35A 120/240VAC

FUJI FA AUTO BREAKER SA52RCUL 30A 240 VAC 2 POLE, CIRCUIT BREAKER,

GEMS 44715 TYPE FS-4 SPEC. .25 GPM 20 VA 120 - 240 VAC FLOW SWITCH NOB

YAMATAKE HPX-T1 PHOTOELECTRIC FIBRE OPTIC SENSOR 10-30Vdc

SMC ZSE30AF-01-P VACUUM SWITCH 12-24Vdc 2 COLOR -100 - 100kPa 1/8" PORT

SMC ISE30A-01-P PRESSURE SWITCH 12-24Vdc 2 COLOR -0.1 - 1.0MPa 1/8" PORT

CRC 12517 AXIAL FILM CAPACITOR .75uF 100V NON-POLARIZED AUDIOPHILE  NOS

ALLEN BRADLEY AB 100-A09NZ*3  CONTACTOR 24Vdc COIL 600V

SQUARE D 9001KR25R MUSHROOM OPERATOR BUTTON, 30MM, RED, SPRING RETURN, NOS

SPRECHER  SCHUH CA7-9E-01 CONTACTOR  CS7-PV RELAY 24VDC COIL VOLTAGE

TECNETICS 9567-115 REGULATED PWR SUPPLY INPUT 25-31VDC/OUTPUT 1500VDC/3W

SIEMENS SIOV-B32K550 METAL OXIDE BLOCK VARISTOR HighE SERIES, 745VDC, 620W, 2PCS

TECNETICS 9567-114 REGULATED PWR SUPPLY INPUT 25-31VDC/OUTPUT 1000VDC/3W

RKC SSNP-25F POWER CONTROLLER, SOFT START SINGLE PHASE LOAD max 264VAC 25A AC

SPIRAX SARCO 80013 FLOAT  THERMOSTATIC STEAM TRAP REPLACEMENT KIT 3/4  1 FT-15

POWER HA15-0.9-A POWER SUPPLY, 15VDC 0.9A,  

CIMTEK SPI-200 SPIDOR 16-CH DISCRETE INPUT C0225-004A w/ BROKEN RAIL CLIP, PARTS

TELEMECANIQUE / SCHNEIDER LC1D18 CONTACTOR 600V 3PH w/ LAD4VU SUPRESSOR,

LAMBDA RS-9-48 POWER SUPPLY IN 85 - 132Vac 38W 47 - 440Hz OUT 48V 0.5A

BIMBA FLATII NON-ROTATING CYLINDER FT-041

FUJI GPF2945-2C STEPPER MOTOR STEP ANGLE 1.8° 1.8Vdc 4.8A

CRYDOM A2425 SOLID STATE RELAY SSR, IN: 90-280V OUT: 240V 25A,  

TERMONIC 26150 ELECTRONIC THERMOSTAT, -15 THRU 150C WITH CABLE AND DIAL CONTROL

CONTA CLIP DC-DC/12-0,5 POWER SUPPLY DC CONVERTER

LOT OF 6 POTTER  BRUMFIELD KHU-17D11-24 ELECTROMECHANICAL RELAYS, 3A 24VDC

 STARRETT 666-7 25 FT. FEELER  THICKNESS GAUGE 0.007", BNIB/NOS

 STARRETT 666-8 25 FT. FEELER  THICKNESS GAUGE 0.008", BNIB/NOS

SMC ARX21-01BG REGULATOR FOR 2 MPA, MODULAR TYPE REGULATOR, ARX REGULATOR

ALLEN BRADLEY 700-P400A1 AC RELAY CONTACTOR 110-120V 10A 4POLE w 700-N24

 BANNER OSBF SENSOR HEADS with OMNI-BEAM OPBT2QD POWER BLOCKS

PHOENIX CONTACT Y SPLITTER 1696183  INDUSTRIAL CIRCULAR M8 CONNECTORS

NOVATRONICS 715075-193 / 20M33P2-A MOTOR

NVIDIA QUADRO FX 3500 VIDEO GRAPHICS CARD 256MB 42.24 GB/S DUAL DVI, S-VIDEO

QTY 6 IDEC HW-F10 CONTACT BLOCK 1NO 600V / 10A w / NON-ILLUMINATED PUSH BUTTON

PHOENIX CONTACT 2966016 RELAY BASE w/ 2961105 RELAY 24Vdc COIL, 3pcs,

PHOENIX CONTACT 2966016 RELAY BASE w/ 2961105 RELAY 24Vdc COIL, 3pcs,

PHOENIX CONTACT 2966058 RELAY BASE w/ 2961105 RELAY 24Vdc COIL, 3pcs,

IVERSAL INSTRUMENTS ETS332013001 RAIL EXPANSION SWITCH 5A 250VAC, 2PCS, NOS

PEPPERLFUCHS NJ2-F-US-1.025-BHMS3 PROXIMITY SENSOR 20-300Vdc / 20-250Vac NOS

ESCHA 4MBM8-3P2 4-CHANNEL PASSIVE SIGNAL SPLITTER  6ft CABLE  CONNECTOR

CALEX CM2.15.100-115 DUAL POWER SUPPLY /-15v at 100mA,

ALLEN BRADLEY FLEX I/O 1794-IB16 16 SINK INPUT MODULE 24Vdc

 ALLEN BRADLEY FLEX I/O 1794-IB16 16 SINK INPUT MODULE 24Vdc

KEYENCE GL-RB12 L SHAPED BRACKET   

ALLEN BRADLEY 193-BSA 70 BIMETALLIC OVERLOAD RELAY  0.4-0.6A 600V 2pcs NOS

ROCKWELL AUTOMATION 329001-A01 115V AC INTERFACE CARD REV 04 M003739476, NOS

POTTER  BRUMFIELD KRP14DG 24Vdc 10A, 120Vac 2PC  KRPA-11DG-12 12A, 120VAC 2PC

OMRON H3DS-SL TIMER INPUT: 24-230VAC ~ 50/60Hz, 24-48 Vdc OUT: 250Vac~, 30Vdc 5A

 ESCHA 8-CHANNEL 8MBM8-3P2 PASSIVE SIGNAL SPLITTERS IN GREAT CONDITION

OMRON D4NS-2CF SAFETY SWITCH 3PST-2NC/1NO CHASSIS MOT 3A 240V w/o KEY, 2PCS

SMC CDJP2810-30D PNUEMATIC NEEDLE CYLINDER () W/ SMC D-M9P AUTO SWITCH (2pcs)

VEXTA PK245-01AA STEPPING MOTOR 2-PHASE DC 1.2A 3.3Ω XP7 32839 1.8° PER STEP

ONLINE ENERGY 50-0008-00 INTERFACE BOARD REV 1.0

ALLEN BRADLEY H 150, 15A, CAT 1492-CB2 CIRCUIT BREAKER DIN MOT  SHAPE

FUJI ELECTRIC SC-03 MAGNETIC CONTACTOR SC11AA AC 220V

KEYENCE FS-N11N FIBRE OPTIC SENSOR/AMPLIFIER, CABLE TYPE, MAIN IT, NPN

KEYENCE FS-N11N FIBRE OPTIC SENSOR/AMPLIFIER, CABLE TYPE, MAIN IT, NPN

 STARRETT 666-15 25 FT. FEELER  THICKNESS GAUGE 0.015", BNIB/NOS

 ALLEN BRADLEY 700-HN121 SER. A RAIL MOT RELAY SOCKETS 10A 250V

 HUBBELL 2623 FEMALE TWIST LOCK RECEPTACLES 30A 250V

PHD TOM THUMB AVP11/8X9-P-D-M TIE ROD PNEUMATIC NFPA CYLINDER 150PSI,

BUSSMAN 170M3418 HIGH SPEED SQUARE BODY FUSE 350A 660V

THK HSR15R LINEAR MOTION BEARING AND 16CM LONG GUIDE PAIR  IN  CONDITION

 SCHNEIDER SQUARE D LC1D18BD 3-POLE CONTACTOR, 440V 18A, BNIB/NOS

FURNAS DEFINITE PURPOSE CONTROLLER CONTACTOR 42BF35AFM 500096

OMRON E2A-S08KS02-M1-B1 PROXIMITY SENSOR SS M12 4-PIN CONNECTOR PNP-NO,

LOT OF MERSEN / FERRAZ SHAWMUT USCC FUSE HERS, P216489 / B213441, 600V/30A

GFC HAMMOND HPPD-015-003 SOLID-STATE POWER SUPPLY, /- 15V @300mA

SIEMENS 5SJ4110-7HG41 CIRCUIT BREAKER 240V 14kA 10A w/ 5ST3010 AUXILIARY SWITCH

OMRON S8VS-03024 SWITCH MODE POWER SUPPLY 24V 30W 100-240VAC DIN RAIL,

NATIONAL INSTRUMENTS 763061-01 X2 GPIB CABLE DOUBLE SHIELDED PLUG/RECEPTACLES 1M

WESTON AC CURRENT 5 AMP METER - FOR ELECTRONICS INSTRUMENT MULTIMETER POWER

HAOYU HY32C 3.2" TFT LCD DISPLAY MODULE, PARTS/REPAIR