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。

Brad Harrison 703000D02F200 Female Micro Change Cordset (CBL15DM S

Numatics M13557 Pneumatic Cylinder 5H2T-703464-15 (GR14DM S

Bimba Flat-1 FOS-09-0.375  Pneumatic Air Cylinder Mod (CL10DM S

Wika 111.12 2.5" 1/4”NPT CBM Moting Gauge 400 PSI (YE13DM S

 Schneider LRD05 Thermal Overload Relay LRD05 0.63-1A (GR19DM S

Wika 111.16P 2 1/4 Npt Cbm  Moting Gauge 100 PSI (BL152)

Igus Chainflex 502 Lot of (DM S Cable Carnier Side Plate (RE192)

Igus Chainflex 501 Lot of (DM SStandard Vertical Separator for E-Chains (RE19DM S

Brad Harrison 1300480096 M12 Male/Male Ethernet Cable 2 Meters (GR18DM S

Banner LMBWLB32-180S/87852 Led Light Bar Moting Bracket Set (CL18DM S

Allen Bradley 140M-C-AFA11 / 1N0, 1NC Auxiliary Contact (CL21DM S

Phoenix Contact 2281568 26-Pin Breakout Interface Module (BL22DM S

Ilme Cnf-24 Mencom 10.1970 24 Pin Female Rectangular Insert (CL28DM S

Allen Bradley 1492-CB1G005 Ser.C 0.5A Circuit Breaker (CL152)

Bussmann Fusetron FRN-60 Lot of (DM S Fuses (CL26DM S

Wika 111.10 4" 1/4 NPT Lower Moting Gauge 200 PSI (BL151)

Fanuc / GE FE-1222-J031 / A290-7222-X36DM SHARD STOP BRACKET KIT (HV10DM S

Honeywell Micro Switch FE7C-TT2R-M Mini Photoelectric Control (BL25DM S

Compact Air Cylinder AR34X12  (BL14DM S

Littelfuse Indicator IDSR-60 /75-600V AC/DC Time Delay Current Limiting (CL211)

Bussmann FuseTron FRS-50 Dual Element Time Delay (CL211)

DM SBussmann FuseTron FRS-50 Dual Element Time Delay (CL211)

Cer Product Company N4S230 Lot of 100 Fittings (BL23DM S

Buss Bussmann LPJ-40SP  Dual Element Time Delay Fuse (BL202)

Turck VB2-FSM 4.4/2RK 4.4T-0.3/0.3/S651 Wire Split U0098-11 (BL26DM S

Dynaflux H1007-H  Coupling (YE190)

Turck RKFP 35-1M U99-11914 MiniReceptacle (BL102)

Stego 01140.0-00  Thermostat 0-60°C Typ Kto 011 250V (RE130)

Bussmann Fusetron FRN-R-100 100Amp Class RK5 Time Delay Fuse (GR221)

 Bussmann Fusetron FRN-R-100 100Amp Class RK5 Time Delay Fuse (GR221)

Schneider Electric 24503 Multi 9 C60  Circuit Breaker 4A (BL25DM S

Numatics K90-K11 Actuator Repair Kit Pneumatic Valve (GR17DM S

Turck BI 5-S18-AD4X Inductive Proximity Sensor (CL14DM S

Ilme Mencom CXF-4/0 4-Pin Female Rectangular Insert (CL24DM S

Allen Bradley 1485A-RAN5-M5  Devicenet 90° Elbow (RE137)

Bimba E5-08D1 Air Cylinder U9541 .75 X 2.00 (GR15DM S

Omron 7VAP2-6  Snap Action Switch (CL177)

Omron H3CR Timer Relay (CL152)

Turck CS16-0 MultiU0211 16Pin Male Straight Connector (CL15DM S

Cummins 4386983 Exhaust Manif Gasket (CL200)

Nordson 1100687  Solenoid Cable 3-Pin Female 5 Meters (YE19DM S

Allen Bradley 285-M25M-M05 Male Receptacle 0.5 Meters 3-Pin (YE19DM S

Browning 24XLB037  Timing Pulley (CL162)

Amphenol P29930-M.5 0.5 Meter M12 Female to RJ5 Plug Cable (CL16DM S

Festo 565316 / LPZ=RB150B Air/Gas Nozzle M12 x 1.25 (BK102)

Domino 13501 Cable Repair Kit IP68 9-Way (GR111)

PARKER RV01A1N090  Pneumatic Relief Valve (GR130)

Siemens AMBL1 MOTING BASE F (GR137)

Omron Lot of (DM S PYF08A-E Din Mot 8-Pin Relay Sockets (CL18DM S

DM SOmron Lot of (DM S PYF08A-E Din Mot 8-Pin Relay Sockets (CL18DM S

SMC D-M9P Proximity Switch (CL191)

DM SSMC D-M9P Proximity Switch (CL191)

Busssmann LP-CC-6/10 10-Pack Aftermarket Import Fuses 6/10 Amp 600VAC (RE21DM S

Bimba BF-01DM SPneumatic Cylinder (CL10DM S

Bimba MRS.-1.5-B-02 Magnetic Reed Switch (CL18DM S

Eaton Cutler Hammer E22NB2 25mm Illuminated Push Button (CL21DM S

Tsubaki 120Offsetset Link for 120 Chain 7/8'' Roller, 1-1/2 Pitch (BL29DM S

Phoenix Contact UMK-SE 11,25-1 (BL24DM S

SMC KPL10-03 Lot of (DM S Push Connect Valve 90 Degree (BL18DM S

SMC MXS-AS6L Stroke Adjuster (0-5 ADJ) (CL127)

HTM Inductive Proximity Sensor MQP2-882.5C-A2L5T 2-Wire NO 10-60VDC (CBL101)

Square D ZB4BZ102  Base Mot with Contact Block (YE13DM S

Clippard 3SD-4  Cylinder (YE162)

SMC NCQ2D16-5DCM Compact Pnuematic Cylinder (CL222)

Eaton Cutler Hammer E22H9 Ser. A1 Orange Indicating Light (CL22DM S

Banner S185P6FF100 Photo Electric Sensor 1Meter (CL240)

Wika 4239173 / R22, R12, r502 Gauge 1/8NPT 0-500 Psi (CL24DM S

Wika 4239165 R22, R12, R502 Gauge 30inHg-120Psi / 1/8NPT (CL24DM S

Pepperl  Fuchs 419079 Suppression Sensor Module RL28-55/47/82B/105 (CL24DM S

Pepperl  Fuchs NBB8-18GM50-E2-V1 Proximity Switch (CL24DM S

DM SPepperl  Fuchs NBB8-18GM50-E2-V1 Proximity Switch (CL24DM S

Siemens 3TX7002-2AB00 Input coupling link 24V AC/DC (RE11DM S

Turck NI20-CP40-FZ3X2 Proximity sensor (RE13DM S

Bando 16T5-850 Industrial Synchro Timing Belt (BE10DM S

Bussmann Fusetron FNA2   Dual Element 2AMP (GR177)

Trumpf Sensor Cable 0797098 (BL12DM S

Speed Control 16T5-850 Industrial Synchro Timing Belt (BE10DM S

Honeywell 922AA2XM-A9N-L 2MM M12  Capacitive Sensor (BL14DM S

McGill MCYR 8 S Cam Flower Bearing (BK10DM S

Daniel Woodhead DN3020 DeviceNet 5 Pole, Tee Female to Male (BL15DM S

Balluff BCC06F6  Field Attachable Connectors (GR14DM S

Turck RSM 40-WKM 50/BL67/CS30040  4 Pin Male 5 Pin Female Connector (BL20DM S

Changer  Dresser KTWHL(U)-410 Her (YE220)

Harting 0933024260DM SConnector Contact Block Han 24 E STI-S (BL25DM S

Harting 10. HBE 16 Screw Terminated Plug w/ Wire Protection (BL262)

Gould Shawmut 20306   Class H/K Fuse Hers (YE16DM S

Bussmann CHCC (DM SFuse Block Her 30 Amp 600V (GR14DM S

Phoenix Contact FLK 25 Terminal Block Interface Module (BL240)

Diell / Miro Detectors SS2 / AP-1H Optical Sensor 10-30 VDC (CL160)

Trane / Midland Ross 157-22T1L5 (BL20DM S

Honeywell Skinner B4RX40 B-Series Valvule for 24VDC Solenoid (CL241)

ABC SMITH BEARING HR-5/8-X Cam Follower (BL19DM S

Banner SM31E Mini-Beam Photo Electric Sensor 1 Meter (CL23DM S

Clippard JFC-2B 1/8NPT  Meter-in Adjustable Flow Control Valve (CL23DM S

Parker FM12SCF 5-Pack Ermeto E02 Hydraulic Tube Nut M 20 x 1.5 (CL36DM S

Gates Powering Progress AL20 119-D4-1 Timing Belt (BE102)

Cooper Arrow Hart Locking Plug Gray 20A/4P/4W (GR21DM S

ark Corsair MS3470L10-SP 6-Pin Connector / Receptacle (CL232)

Omron E2E-X2ME1 Proximity Switch Sensor 12-24VDC (No Hardware)

Craig Tools 152-2PCD-100-.1910 #11 2-Flute Cotersink (GR1DM S

Allen Bradley 855 BL-LH24 Halogen Lamp 24V 50W (YE21DM S

THK LMH13UU Oval Flanged Linear Bearing (BK160)

Banner 20195 / BTA135 Bifurcated Glass Fiber Cable (GR151)

Parker 941814  Element Condition Indicator / Sensor (BL260)

MURR Elektronik 7000-40881-2260060  Valve Plug M12 Male (CL271)

SMC AS3002FS-06 Flow Controller (GR17DM S

ROSS CONTROLS 546H77 COVER PLATE KIT (BL187)

CPC Cer Products HFCD23635 3/8 Package of (DM SBarb Valved Elbow (CL20DM S

Allen Bradley 800T-N61A Amber LED Cluster Lamp (CL22DM S

Allen Bradley 1489-AAHH3  Series A Auxiliary Switch (BK10DM S

Turck FKFD-8-1 / U99-17441 1M 8-Wire m12 Female Receptacle (CL29DM S

Semikron Rectifier / Power Diode SKN 60 F 17 1700V (RE12DM S

Euchner 012043  Lever Arm with Steel Roller (CL170)

SLAUTTERBACK  E100 Thermoswitch 74032-350 (GR12DM S

SMC  RB1007 Pneumatic Cylinder Shock Absorber (CL17DM S

Allen Bradley 1734-CTM I/O Terminal Module (BL26DM S

DM SAllen Bradley 1734-CTM I/O Terminal Module (BL26DM S

ABC Smith Bearing HR-3/4-XB (BL192)

SMC KB00603 PKG of 5 GT CODE CYLINDER SEALS (BL19DM S

Silvent 210 1/4" NPT Aluminum Air G Nozzle Tip (BL19DM S

Square D 8501-NR62 10A/300V  Relay Socket (BL20DM S

Clippard 7019-9DD  Automatic Valve 480V 150PSIG 50/60Hz (BL22DM S

Harting 10.5401 HA  16 Screw Terminated Plug w/ Wire Protection (BL260)

Yale Hyster 504226230 Steering Pump Seal Kit (YE27DM S

YE274-504226230

Balluff BAM009P / BES 08-FA-BS-4, 0-W Sensor Bracket (BL271)

Cer Product Company 42000  Fittings (BL237)

McGill CCYR-3/4-S Cam Yoke Roller (BL26DM S

American Cylinder 312SNS-2.00-32 5/16" Bore Stainless (CL17DM S

Parker PK8202A001 3-1/4" BAN Piston Seal Kit (CL160)

Browning G1 Split Taper Bushing 1'' Bore (YE227)

Allen Bradley 1791DS-IB8XOB8 I/O Compact Block (CL382)