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。

Norgen IMI K71EA00K56KV2 (CL18DM S

Marathon 1451408 Power Block (BL16DM S

Mitsubishi NV100-FHU 3-Pole 230-240VAC Circuit Breaker 75 AMP (YE2DM S

Sturtevant Richmont 810016 LTC-300I 50-300 IN. LBS Torque Wrench 9'' Long

Siemens B320 3-Pole 240VAC 20 Amp Med Circuit Breaker (YE220)

 Siemens B320 3-Pole 240VAC 20 Amp Med Circuit Breaker (YE220)

Allen Bradley 100-C12ZJ400 Ser. A. Contactor 24VDC (CL23DM S

Inductoheat 31021-017 PC Board (CB10DM S

Control Concepts IC105 AMP Voltage Regulator 120VAC (CL207)

Mahle VCI-T-X-D-F Vehicle Commication Module (CL162)

ECT SPA-2A Spring Loaded Contact Nickel Silver, G Plated PKG of 25

Panasonic SX NA1-5 / A15 Safely Area Sensor

Fanuc A05B-1222-D30DM SCable / Cordset (CBL10DM S

Cogn CKR-200-IO-002 800-9012-1R EXPANSION MODULE (YE14DM S

Lufran PROXIMITY SENSOR SLC-1-A-S 120-240VAC N.O. (YE11DM S

Selectron SeleData SDM 52 Stepping Motor Drive (GR14DM S

PHOENIX CONTACT RAD-ISM-2400-ANT-PAN-8-0 2.3-2.8GHz Directional Antenna (RE11DM S

Siemens 6ES7-972-0CA21-0XA0 Simatic S7 PC Adapter RS232 (BL307)

DM SSiemens 6ES7-972-0CA21-0XA0 Simatic S7 PC Adapter RS232 (BL307)

Dynamics Research 152-021-250-36C Motor Encoder (GR140)

Cognex LFC-16F / 114-0083R Fujinon Lens (CL257)

Dataforth DSCA40-09C Isolated Millivolt Input Conditioning Module (GR19DM S

YASKAWA JZSP-CMS21-05-E  Control Cable (CBL10DM S

Euchner N01R572-M  Limit switch 087163 (RE1DM S

Contrinex DAS-0020-003  RING INDUCTIVE PROXIMITY SENSOR (RE122)

Gates 8MGT-2520-2DM SPolyChain GT2 Power Transmission / Timing Belt (BE122)

Sick Optex V-2E Photoelectric Sensor 12-240 VDC 24-240VAC (RE21DM S

Omron WLNJ-30  Limit Switch 1NO INC (YE177)

RKC Rex-AC410 Temperature Control Indicator 100-240VAC 50/60Hz (BL10DM S

KUBLER DNC00503 Probe Sensor EVS 1/2 NPT-L230-1SIL-HT (BL22DM S

Omron E3Z-G8DM SGenuine Photoelectric Switch 12-24VDC, 2 Meters (CL12DM S

Hyster Yale 582018150  Sensor 8223-18150 (YE12DM S

Ashcroft CXLdp  Differential Pressure Transmitter 0.25 IWC 12-36VDC (BL12DM S

BR X20-BT-9100 Rev E0 PLC Module X20BT9100

PARKER P1PS020DS7G0010  DOUBLE ACTING CYLINDER (GR14DM S

Banner SM2A91R  Valu-Beam Reciever Sensor 6' (YE200)

OMRON E2C-T16  Proximity Switch Amplifier (RE10DM S

Keyence Digital Fiber Optic Sensor

Festo CP-E08-M12-CL   I/O  Module Terminal 538787 (RE111)

Automation Direct ProSense PTD25-10-0100H (YE17DM S

Festo MEH-3-24V DC / MELH-3-0, 9-1 Solenoid Valve (YE122)

Airport Airpel E1602-0N PBL Acting Cylinder (BL25DM S

Festo CPE14-M1BH-5 / 3G-1/8 Solenoid 1/8" Valve 3-8 Bar (GR17DM S

Dayton 6PY79 Pump Repair Kit Air (BL25DM S

OMRON 3G8B2-N0020 0228996-7C  PCB Pressure it (CB10DM S

Maxon 1089136 12'' Spark Ignitor (RE187)

SMC EX250-SDN1-X122 DeviceNet w/ (DM S IE2 Input Modules  8 Various Valves CL280

Mauser 818-S-3-A-4-G / S3A4G IDI Lot of (90) G Plated Spray Probes (CL11DM S

Miller EE-4560-654-003  Fiber Optic Cable (CBL12DM S

Cutter Hammer Eaton E30AG-EXL "load" Push Button (CL222)

Turck NI14-MT18HE-AP6X-H1141/S1589 Weld Guard Sensor (GR16DM S

Siemens 6GK1901-1BB20-2AA0 RJ4S 90° Ethernet Connector (CL19DM S

SIKO SZ80/1-0097 5-Digit Clockwise Increasing Coter (CL33DM S

Sensopart 152 4602/996-09488 Inductive Sensor/Switch. 1.5Meters (GR180)

Siemens Moby MDS 402 6GT2000-0CA20 Mobile Data Memory (RE117)

Baumer Electric IFRM-08N1713/L Inductive Sensor 10-30VDC (BL190)

Honeywell 129464M w/ C7035A Socket Ultraviolet UV Flame Sensor (CL35DM S

DM SHoneywell 129464M w/ C7035A Socket Ultraviolet UV Flame Sensor (CL35DM S

CKD DVL-S-06-H66-020 Graduate Regulating Valve (BL11DM S

Banner PD49VP6C300Q-74701 OPEN LASER ENABLE 5 PIN 12 INCH CONV. (GR12DM S

Balluff BES013P/ BESM08BC PSC20B-549G  Inductive Sensor 10-30VDC (GR182)

Armstrong C5324-5 Stainless Steel Steam Trap 5/32'' 2011-5/32

NUMATICS A13RS115O000000  REGULATOR ASSY W/ MANIF (RE23DM S

Parker Aventics 0822123004 Pneumatic Cylinder 63mm x 100mm (CL360)

Bussmann Tron Rectifier Fuse kac-500 600V 500 Amps (OV1DM S

PARKER PRDM2PP16LVS-16  PRESSURE CONTROL VALVE (RE20DM S

o90 Male to Female St (CBL130)

PBM  SPH-K202 3" Stainless Steel Replacement Valve Ball (CL33DM S

Parker P1js79-24-24 Crimp Hose Fitting Female Seal Lok (RE18DM S

Tri-Tronics 19628 / E3-06A4 LED White Light Connector (CL26DM S

MURR Elektronik 8000-84510 Compact Module Cable / Distributor Block (CBL102)

Peninsular NC9-MP1-BR NOS Hydraulic Cylinder 2" Bore, 1" Stroke (YE23DM S

Bussmann Fusetron FRS-R-150  Class RK5 fuses (YE252)

SMC MHW2-32D1 Angular Gripper Finger (RE16DM S

Brad Woodhead 1300100766/114030A01M200 AP M/F 20M Cordset Cable (CBL121)

Omron E3S-5LE41 Photoelectric Switch Sensor 12-24VDC, 2 Meters

Bosch Rexroth R978017734  Valve (BL20DM S

Murr Elektronik 8000-84410-3331000 M12 Distribution Module 10.0M (CBL14DM S

Omron S8VM-10024CD Switching Power Supply IN: 100-240 Out: 24VDC  (CL367)

Littelfuse spfj-250 Class J Photovoltaic Fuse 250 Amp 1000 vdc or Less (BK15DM S

CKD CMK2-32-150 Pneumatic Cylinder Kit w/ Moting Hardware  Reed Switch YE171

Fanuc A97L-0218-0802#236 / P79E30B3 450N-236 Input Gear (GR11DM S

Festo DPZ-20-80-P-A  Linear Guided Pneumatic Cylinder (YE141)

SMC VFS3220R-5DZ-02 21-26 DC Solenoid Valve (YE107)

Turck RKC 4.2T-30-RSC 4.2T/CS12885 U-45641 M/F Cordset (CBL11DM S

Festo DNC-50-60-PPV-A Pneumatic Cylinder 1922631 Ser. N108 (CL32DM S

SMC RSH20-15DM-S Stopper Cylinder (BL271)

Camozzi QP2A040A050EX Pneumatic Cylinder 40mm Bore 50m Stroke (GR150)

Allen Bradley 100S-C12EJ14BC  24VDC Safety Contactor (YE23DM S

Sturtevant Richmont 810574 LTH-OHT 50-300 In. Lbs. Torque Wrench 6.9" Long

Numatics NUM152RD400J000000  Pressure Regulator w/ gauge (CL32DM S

FasTest 70P1385 Stainless Coupler / Quick Connect (GR112)

Honeywell THERM20-577 ~ 002J-2-M-15-R12-05  Thermocouple 3161645 (GR112)

SMC VV714-02R-03D 4 Valve Head Manif  (RE20DM S

Numatics ASCO B042A2HZCX  Linear Slide TD-578901-1 (YE107)

Fanuc 7 Axis Encoder / Brake Module EE-4583-050 Rev F (RE21DM S

Parker C05S-20-10-4 Compact Pneumatic Cylinder 200mm Bore, 4mm Stroke (BL10DM S

Allen Bradley 855E-B10GL4  Red Flashing LED Lamp w/ 10" Base 120VAC (GR20DM S

Crouzet BAR-U-110A  DIN Mot Time Delay Module (CL35DM S

Turck BI15-CK40-AN6X2-H1141 Inductive Sensor (BL14DM S

SMC Pnematic Cylinder CDG1UA20-50Z-H7A2L w/ Reed Switch (GR20DM S

Square D 9001-K1L1G / KMDM SGreen Push Button (BL19DM S

Allen Bradley 1734-AENTR Ser. C Ethernet Interface Module (YE221)

Allen Bradley 875CP-NM30NN34-A2  Capacitive Proximity Sensor . (RE13DM S

Cleco Apex 544196-005 0.5 Meter System Bus Cable (CL14DM S

Bucher 280254 24VDC 17 Watt Coil (CL342)

STI 60555-1300 8-Pin Light Curtain Transmitter Cable 30 Meters (CBL142)

CKD SCPD3-0L-CB-16-45 Pneumatic Cylinder, Clevis Pin Included (YE161)

Bussmann Frn-R-6/10  of 10 Fusetron RK5 Class Fuses .6Amp (GR2DM S

Allen Bradley 1492-GS2G030 2 Pole Circuit Breaker 3 Amp (CL16DM S

Faulhaber 2233F024S Micromotor 24VDC (CL207)

Gorman-RUPP 02501-501 / 21661 Bellows Kit for Tennant (BL26DM S

Balluff BES0273 / BES-M08EA-PSC15B-EP00.3-GS49 Sensor (CL20DM S

Siemens 3RG4013-3KB00 Inductive Proximity Switch / Sensor (BL192)

Rexroth 2PCS R060230810  Linear Ball Bearing (CL177)

Nordson 7018555 / 5180B Pack of (DM S Applicator Nozzle 2.5"X.125" (YE142)

ABZ 2-090 2" 2-Piece Body Rubber Seated Butterfly Valve (CL357)

Simens HCS3S100 HCGA CIRCUIT BREAKER 100A (RE21DM S

Sanyo Denki SH2861-0441 Stepping Motor

Woodhead Molex 1300100494 / 113030K13M120 3-Pole M/F 12 Meter Cable (CBL12DM S

Mayr 1/400.405.5 Compact Torque Limiter Clutch US157151 (BL13DM S

TPC Wire  Cable 60938 Revision C. Cable 24 Meters Male/Female (CBL132)

Nordson Efd Performus II 7012331 843846 Performance Dispensing System (CL24DM S

SMC NCDAIR250-0700-X2US Pneumatic Cylinder (CL33DM S

SMC VS7-8-FG-S-CNA03 115VAC Solenoid Pneumatic Valve

SAS Automation SWM-2 Pneumatic Manif (GR190)

Electrivert BK1095594 30ft Cable / Cordset (CBL11DM S

Murr 7700-A5001-U1D1000 Mini 7/8'' 5-Pole Male Cable 10 Meters (CBL140)

Barksdale Controls CDPD2H-A3SS Pressure Switch 10PSI 287J Type 4 (GR21DM S

Bussmann Fusetron FRS-250 Lot of (DM S Dual Element Fuses (OV10DM S

Mitsubishi A1S55B 5-Slot Base it Chassis Module

Jayco T2D Safety Relief Valve 1/2'', Set 25 PSI