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

NIKON 4S015-051-1 PCB BOARD, NIK864, 105082

Nikon 4S015-051-1 PCB BOARD, NIK864, LITHO, 105172

Nikon 4S017-107 Analog/Digital Converter PCB Card, NSR System, 107054

Nikon 4S017-107 Analog/Digital Converter PCB Card, NSR System, 105766

Nikon 4S017-107 Analog/Digital Converter PCB Card, NSR System, 107060

Nikon 4S017-107 Analog/Digital Converter PCB Card, NSR System, 105834

Nikon 4S017-107 Analog/Digital Converter PCB Card, NSR System, 105085

NIKON 4S017-363-D PCB, AIRCONNECT, LITHO, 107053

Nikon 4S017-615 PCB ASSY, 105297

NIKON 4S018-224-1 WL3EXP PCB BOARD, 104610

Nikon 4S020-104-1 Analog/Digital Converter PCB Card NSR SYSTEM, 107294

Nikon 4S020-104-1 Analog/Digital Converter PCB Card NSR SYSTEM, 103008

Nikon 4S020-104-1 Analog/Digital Converter PCB Card NSR SYSTEM, WLEXPCTL, 105084

Nikon 4S020-160 WLEXPCTLN PCB, LITHO, 103054

Nikon 4S020-160 WLEXPCTLN PCB, LITHO, 105178

Nikon CFI LU Plan Apo Microscope Onjective Lens, 150X/0.90, 150X, 142174

Nikon CFI LU Plan Apo Microscope Onjective Lens, 150X/0.90, 150X, 142175

Nikon Eclipse ME600L Microscope, ME600, 100-240V, PRIOR H101A, N2KV, 451830

Nikon FBU-01 Feed Back Unit, MODFY505 Subassy, SP1994-1060, 100875

Nikon KBB00036 Standard 6 Inch Wafer Holder, 4 Body Stage Chuck, 6", 177249

Nikon microscope With 3 objectives, Light source, eyepieces, BD PLAN 10, 5, 20,

NIKON NVC6B-U CAMERA CONTROL UNIT, AC100V 50-60Hz 100VA, 117020

NIKON NVC6B-U CAMERA CONTROL UNIT, AC100V 50-60Hz 100VA, 117679

NIKON PRS - I/F 23136-1 PCB BOARD, 120669

Nikon PVI82 Elevator Unit, MGV14100, 841838, 129076

NIKON RF-285-PDC-1 SCREEN RF-285-PDC-1 PDP CONTROL BOARD, 120515

NIKON S4017-282 CONTROL-CPU PCB BOARD, 120635

NIKON SCNT 2S700-581, 2S014-034-1,2205-1, MGA20000 PCB BOARD ASSY, 151971

Nikon TEC KBA00101 AZ Laser, 134817

Nikon TEC KBA00200 HE-NE Laser, 134816

Nikon TF-1107 Box, Controller Module 4s003-034 PCB, 4S288-076E, 155626

NIKON WETCNT-CPU 4S017-283-1 PCB BOARD, 120625

Nilfisk SS Stainless Steel Vapor Vacuum, PHI 078 573319 1, GMPJ115, 117319

Nimtec 94-1115-102 Ti Target, Titanium, 127764

Nimtec MET-TI 11.4" Target, HB00-6000404-00, 4N5 Ti, 11.413" EB (E5500), 138561

Nimtec MET-TI 11.4" Target, HB00-6000404-00, 4N5 Ti, 11.413" EB (E5500), 138562

Nimtec MET-TI 11.4" Target, HB00-6000404-00, 4N5 Ti, 11.413" EB (E5500), 138563

Nimtec MET-TI 11.4" Target, HB00-6000404-00, 4N5 Ti, 11.413" EB (E5500), 138564

NIPPON GEROTOR MOTOR TROCHOID PUMP ZBBG200TG4P-GR1,

NIPPON GEROTOR ORBMARK MOTOR ORB-S-160-2PC, PARTS

NIPPON GEROTOR ORBMARK MOTOR TYPE ORB-H-100-2PC

NIPPON GEROTOR ORBMARK MOTOR TYPE ORB-S-070-2PC

Nippon TOP-2MY-1500-220HBMVB 1.5kw Motor-Trochoid Pump

NISSAN 28710-CA000 34969-581 REAR WINDSHIELD WIPER MOTOR GENUINE PARTS

NISSAN B/W GLASS 90300-CA000 GLASS-BACK DOOR WINDOW, 2003-2007 MURANO S, SE, SL

NISSAN F/D GLASS 80301-CD00A, FRONT LEFT / DRIVE SIDE, FIT 350Z (2003 - 2009)

NISSAN MOTOR GENUINE PARTS 90830-CA000 WEATHER STRIP 20030822

NISSEI GEAR MOTOR GTR GLM-28 1:120 TOSHIBA 230V IK FEKK 1700RPM, FR MIYANO LATHE

NISSEI PLASTIC CO. CIRCUIT BOARD 4TP-2B471 N9FT0-00 FR INJECTION MOLDING MACHINE

NISSEL GTR FS11-35-40-T040A RATIO 1:40 W/ INDUCTION MOTOR TET-12 200/220V 0.4KW

Nissen (91850) 1850° F / 1010° C 3/8" Temperature Indicating Stick Lot Of 14

Nissin 5-3000-302C Controller Board, Filament P.S., PCB, 149066

Nissin 5-3000-302C Controller Board, Filament P.S., PCB, 149067

NISSYO KOGYO TRANSFORMER 2.3 KVA 3PH BKO-NC 6307-5 S/N. 57005 MTR 30KG

NIVUS Conductivity Sensor 4-Pole 15m Cable IP68 3/4" Connector Thread

Nivus OCM Pro Level Monitoring Stationary Flow Meter for OCP-M3W0INA3E

NIVUS RS-232C Monitor // ANN/MDLF00US200

NIVUS RS-232C Monitor // ANN/MDPH00US200

NIVUS s::can D-313 // ASZ0D313

NJ 2206 ECP/C3 - SKF - CYLINDRICAL ROLLER BRGS - FACTORY !

NKS JSB015FN504 SERVO MOTOR, 142278

NNB Agastat 7022ACA1 1.5-15 Second Timer Relay

NNB Allen Bradley Size 1 series B 480V 10Hp 509-BUD-3-4R Magnetic Starter

NNB ATC 306E-006-A00-PX TIMER 30-0/0-30SEC  arranty

NNB BAUTZ DC SERVOMOTOR E586MGC 3.4A 5300RPM 5.58-1000V 90DAY

NNB DODGE 140C200T010 DODGE COMBINATION TIGEAR

NNB DrexelBrook DE2000 micro controller and receiver

NNB EATON DISCONNECT SWITCH DH363NGK 100A 600V 3P FUSIBLE

NNB EATON SIZE 5 MCC STARTER BUCKET SIN19965 400A 480V 3PH 4W/STARTER AN16SNO/BR

NNB MCC POWERA CIRCUIT BOARD GYR 529-730 90DAY

NNB Norgren R17A00RNLA Regulator

NNB Nullmatic 60N B/M 2419S3 Pilot Valve

NNB SIEMENS R538695 LANDIS & GYR REMOTE CONTROL UNIT 2 YR

NNB Square D Nema Size 0 Series A 8536 SBG 2CS Magnetic Starterarr

NNB UFM UNIVERSAL FLOW MONITOR MN-BSB60GM-1/2-32V1.0-A1WD

NNB UNIVERSAL FLOW MONITOR MODEL SN-BSF3GM-4-32V1.0 A1W

NNB Warner EM-50-30 Input Clutch Module

NO CAM!  Hubbell Wiegmann WAL3ASS 1 PT Stainless Steel Padlocking Handle Kit

Noah Precision 2003 Chiller Assy, 162603

NOAH PRECISION 2003 THERMOELECTRIC COOLING CHILLER ASSEMBLY, 172777

NOAH PRECISION 2003 THERMOELECTRIC COOLING CHILLER ASSEMBLY, 172778

NOARK CIRCUIT BREAKER 15AMP 3 POLE M1S15T3L

NOB FERRAZ SHAWMUT AMP-TRAP FAST-ACTING FUSE A2K200R 200A 250V

NOB HUMPHREY SOLENOID VALVE 0624E2CD1205060 120VAC 30-126PSI 23WATT

NOP NIPPON GEROTOR CO. INDEX MOTOR IS-070-2PC-2ALC-LO W/ VALVES, FR IKEGAI LATHE

NOP NIPPON GEROTOR ORBMARK MOTOR TYPE ORB-H-170-2PCTJ 21,

NOP NIPPON GEROTOR ORBMARK MOTOR TYPE ORB-H-170-2PCTJ,

NOP NIPPON OIL PUMP MFG CO. ORBMARK MOTOR TYPE ORB-M-18-2P

NOP NIPPON OIL PUMP ORBMARK MOTOR TYPE ORB-H-170-2PC TJ

NOP NIPPON ORBMARK HYDRAUIIC MOTOR TYPE ORB-H-170-2PCTJ

NOP NIPPON ORBMARK HYDRAUIIC MOTOR TYPE ORB-S-070-2PM,

NOP PUMP MOTOR FELQ-8OT 0.75KW 4POLES 200/220V

NOP Trochoid Pump TOP-206HWM

Nopal Pneumatic Cylinder N107X35A1SS 3 X 35 A 1502702

Norcimbus NC3 Gas Cabinet, TMA, 167588

Norcimbus NC3 Gas Cabinet, TMA, 171443

Nord AC Vector SK 7500/3CTD 276075065 | SK 7500/3CT

NORD Driversystems Type SK 172.1F N56C NOS

Nord Electric Motor BREF10F | SK71L/4 BRE10F + 1SMI31VF-IEC71L/4 + External Fan

 Nord SK63L/4 .25HP 1660RPM Motor w/1SMID31VF-63L/4 Gearbox 230/400 V/Y 265/4

NORDAC transmission construction Nord SK 11,000 / 3 CT

NORDAC transmission construction SK 5900/3 / 5.9 KVA

Nordac Vector Mc Inverter 0.75kW | SK 750/1 FCT 278007500/42E300111674

Nordic 1634600 Soft Start Induction Motor Controller