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。

THK BTK2806-5.3F440LF 6mm lead NoPreload Rolled Ball Screw BSC-I-936=1M31

special ordered Harmonic Gear  25-100 for DIY Astronomy mot RED-I-659=2I14

MITSUBISHI J3 Series 100W AC Servo  MR-J3-10A  HF-KP13 W/ Encoder Cables

MITSUBISHI  QJ71E71-100 SN:16~19 ETHERNET I/F IT PLC-I-1218=9T36

MORITEX MML2-65D LENS IT OPT-I-43=o306

SUPERMICRO Single Board Computer  C2SBC-Q REV:1.01 PCB-I-E-1749=9G13

NIKON  4S019-145-B  X3MS-ML PCB-I-E-2627=9G32

THK Caged Roller Guide  SRG20V290L 2R4B for precise Z Axis LMG-I-1103=1G25

DONGDO electronic micrometer controller  ML-CP SEN-I-1226=6A37

SMC Genuine NIB MXQ20-20ASR W/ End Lock Table Cylinder CYL-TAB-I-986=8B32

YASKAWA  SGDV-120A15A SERVOPACK SERVOPACK 1.5kW DRV-I-2833=9F35

DALSA Industrial Camera Line Scan  P3-87-12K40-01-R OPT-I-426=9L27

Portwell  ROBO-8713VGA BIOS R1.03.W1 ,B9302695AB18713821 PCB-I-E-232=9S21

ATG high ratio Servo reducer  KSB-90-80-P0 1/80 for 2,400W AC RED-I-490=2L34

MICRONICS JAPAN XYZ 3AXIS Probe STAGE it ACM10S29L Her

ROBOSTAR KANZ-02BH1N2 AC SERVO MOTOR 200W MOT-I-1552=2J41-13

ROBOSTAR KANZ-02BH1B2 AC SERVO MOTOR 200W MOT-I-1550=2J41-13

Hamonic Driver Systems Gear  for parts SHF-32-80-2UH rusted RED-I-121=2L33

MIRAE NIB DXF1605A902LC7F 5mm lead Grod Ball Screw BSC-I-946=1E12

SEBA NIB SD-CV-U050-D-6-6 VLV-I-1378=8F13

Schneider-KREUZNACH  COMPONON-S 5.6/100 MACRO Lens OPT-I-436=2A21

PRO-FACE GP-4311HT,PFXGP4311HTADERK Touch Panel SCR-I-747=9A35

LIMING ATG Planetary Gear   PGX-120-H-5 RATIO 3:1 RED-I-828=3A15

MITSUBISHI  LD-40PSU Power Regulator ELEC-I-1290=8F23

ALLEN BRADLEY AC servo Driver  2098-DSD-010 Ultra3000 DRV-I-1434=7B43

DALSA  CR-GEN0-M1020 OPT-I-815=W512

CELERITY Refurbish FC-2926V-J TN2925 500SLPM Mass Flow Controller MFC-I-112=2M51

HARMONIC DRIVE SYSTEMS NNB SHF-17-30-2UH Ratio 1:30 RED-I-1151=9F24

PRO-FACE  2880011-01, GP077-CL11 missing fasten her SCR-I-477=9A22

AKT  0100-55539 Rev.01 FAB 0110-55540 Interlock Status Panel SEM-I-1104=9A3A

YASKAWA SIGMA5  SGMJV-08ADA2C AC SERVO MOTOR 750W MOT-I-1389=2J11

SMC AC servo motor controller  LECSS2-S5 100W DRV-I-1583=7B41

NP  NPRLC-400 Ver.: 0POWER PLASMA DRV-I-4173=9D22

PANASONIC NNB MQMA012S1S MINAS A4 AC SERVO MOTOR 100W MOT-I-2033=2J41-15

OMRON NIB E6H-CWZ3X 3600 P/R 0.5M ROTARY ENCODER(INCREMENTAL) SEN-I-1655=9I12

MISUMI NNB BSSR-1249-KC19 Rolled Ball Screw 1249L BSC-I-676=4K05

MITSUBISHI  A970GOT-TBA-B B,A9GT-QBUSS GRAPHIC OPERATION SCR-I-561=9A11

TAVT NIB TECA2410-1P07-15A VER-5.00 LEESCOM TECH VLV-I-1436=6A17

TAVT Compact Electric Actuator NIB TECA2-1P-20A VER-5.00 VLV-I-1435=6A17

FASTECH Step driver NIB EzS-PD-60L-D1-RCL Ezi-Servo DRV-I-3724=6B27

PANASONIC  MSDB045D1D06 AC SERVO DRIVER 400W DRV-I-2575=9D34

THK NIB MBF1402SFM-3.7RRGT227LC5F Precision Grod Ball Screw BSC-I-537=1E13

SMC  PA3110-03 PROCESS PUMP SIMPLE CONSTRUCTION COMPACT IT VLV-I-1432=9H13

REDLAKE  MegaPlus II ES11000 OPT-I-833=9L27

PANASONIC  MSMZ082B1E AC SERVO MOTOR 750W discontinued type MOT-I-1454=2J22

SMC NIB MY1B20-400 Rodless Cylinder 400mm stroke linear act CYL-ROD-I-125=8B24

Akribis ASD  ASD240-0309S1J3 REV:B DRV-I-3488=9B25

FLOVEL Vision controller  SW-F2 OPT-I-355=7C15

HIWIN Robust NNB RGH35CAH202U450L RGH35CAH 1R1B Roller LM Guide LMG-I-1221=1F34

SWG7-2000S-L-H-NPI RING LIGHT GUIDE OPT-I-141

THK NNB BT3610 ROLLED BALL SCREW BEARING NUT for replace BSC-I-518=1D64

MITUTOYO  MIG-2B, 982-547-10A MID Interface GT-3T41-9-500C-3 SEN-I-2010=9I23

YOKOGAWA MotionACE  MP47-1N CPU PLC-I-1557=8B22

PREMIUM  12NC 4022.476.01361 MOD:0599 ELEC-I-1171=9C28

SMC Mechanical JOINT RODLESS CYLINDER NNB MY1H25-100Z NSK LM CYL-ROD-I-111=8B24

RS Automation Servo Driver  CSD3_08BX2 REV.B 220V 800W DRV-I-1723=7C46

IROBO  SAN10005-2003SL380L 5mm Lead 200mm stroke Actuator ACT-I-253=3H24

THK  Rolled Ball Screw Actuator KR4620A590L 450mm stroke ACT-I-272=1Q21

LS  APMC-FCL08AYK2-FW01 X Motion 750W MOT-I-3097=2J22

MITSUBISHI  J4 Series MR-J4W2-22B AC SERVO DRV-I-2488=9F29

MITSUBISHI  MR-J4W3-222B AC SERVO dust inside and rusted DRV-I-1793=7B42

SMC electric slider actuator  LESH8LK-50-R5AN1D 50mm strk CYL-TAB-I-362=1B24

SMC LESH8RK-50-R5AN1D  electric linear actuator LESH type CYL-TAB-I-361=1B24

YASKAWA NIB SGMJV-A5A3A2S AC SERVO MOTOR 50W SIGMA5 Series MOT-I-1844=2J41-14

APEX Planetary Gear   AB060A-S1-P1 025:1 for 2,400W AC Svr RED-I-440=2L24

YASKAWA  SGDH-02AE JUSP-NS600 SERVOPACK Indexer option it DRV-I-2128=8E32

KEYENCE  KV-700,KV-B16XA,KV-B16TA SET CPU INPUT OUTPU MODULE PLC-I-2609=9T17

IKO  LWHT20720mm-2 LM Ball Wire Type Guide Linear Bearing 2Rails 4Blocks

THK  BNK-3.6970L EK15EF15 20mm lead Grod Ball Screw BSC-I-821=1E32

FESTO Stroke measured DNC-32-80-PPV-A-S2-SA37623KR (KX=50) CYL-RND-I-78=4011-1

SHINKO  P/N 3FE113C008300-6 PCB-I-E-2456=6AX1

SX  HL-C2CE Ver2.03 LASER SENSOR Controller DRV-I-3491=9B25

S NNB CP1500-440 PCB-I-E-2465=6AX4

YASKAWA NIB SGMAH-A3ABA21J AC SERVO MTOR 30W discontinued MOT-I-2059=8E22

NNB CONVEX CSDH-01BN1-SQAE AC SERVO 100W DRV-I-1338=7B43

THK NNB SHS30V2QZSSF680LF Raydented Ball Caged Type 1R2B LMG-I-1617=1E25

COPAL NIB PA-838-203G-R1-012 4D5 SEN-I-2203=6A46

THK NNB SHW17CR2UUM390L(G15) Ball Caged Type 1R2B LM Guide LMG-I-1795=1M34

MITSUBISHI discontinued  HA-FE23 AC SERVO MOTOR cut cable MOT-I-2239=2J31

SMC Genuine  25A-MXQ12-40C secondary battery parts CYL-TAB-I-993 =2M23

CHUO SEIKI 360degree Motorized Rotary Stage  ARS-936-HP MRS-I-101=5G31

YASKAWA discontinued SIGMA2  SGMAH-08AAA41 750W AC SERVO MOT-I-2976=3H16

THK   Grod Ball Screw Rust and Scratches 2808870L BSC-I-1583=1E51

SMC NIB MHS3-25D FINGER CYLINDER CYL-FIN-I-168=1B14

THK NNB Genuine LM Guide SHW17CAMZZ 244LM 1R4B for replace LMG-I-1916=1E25

THK NNB SNR45RSSHHC0FMS Linear Bearing Block for replacement BRG-I-1017=1D54

SMC Genuine   MXQ12L-75B-M9N CYL-TAB-I-996=2M23

SMC Air Filter NNB AF900-20-J1 VLV-I-1091=9B41

TECNOTION ASML  4022.636.79012 UL3Y-PT-PTC90 490mm MOT-I-2172=2J22

Harmonic Drive Systems Wave Generator 45-120  19mm input RED-I-394

SN74LS682N PPMC-102A D8041AH017 ampere8921H7 MACRD 6743 Ampe're PCB-E-I-74

ISSOKU  GTR1000LC5 20mm lead Grod Ball Screw CNR Rout BSC-I-1018=1E13

MITSUBISHI J4 Series  HG-KR73CABLE 750W AC Servo MOT-I-3481=1T47

MITSUBISHI  HG-KR73 with connector AC Servo Motor MOT-I-2245=2J31

MITSUBISHI J4  HG-KR73-S126800 750W AC SERVO MOTOR MOT-I-3466=1K43

YASKAWA  SGDV-5R5A11A000000001, SGDV-5R5A11A SGDV-0FA01A 750 DRV-I-3784=9E24

NIB THK BTK3610-5.3ZZ ROLLED BALL SCREW NUT for replacement BSC-I-438=IC32

MJ830 SH13-057T01 Sony Linear Scale and Controller 570mm Stroke

CKD NNB SSD-KL-100C-160 CYLINDER Space-Saving Super-Compact CYL-SQU-I-159=3P12

SMC AFF37B-10B-R MAIN LINE FILTER no bracket

FDS NNB PAG90-09(11C-22K) Fine Drive System Korea Servo Reducer RED-I-10

SHS35-1580mm THK  LM Guide actuator linear rail bearing for maintenance Rail

SMC  MXQ16-50 50mm stroke pneumatic TABLE CYLINDER CYL-TAB-I-145=o105

THK Super fast rolled WTF20402620L 40mm nickel plated high temp BSC-I-353=IM11

SURUGA SEIKI BSS26-60CR7 Stainless XYAxis Manual LinearStage PrecisionPositioner

MKS DLT2A2231A2P110 MASS FLOW RATIO CONTROLLER Gas:N2 Range:2000SCCM MFC-I-7

SMC MGGMB20-16768-A93-XC11 ROD Integrated Guided pneumatic CYL-ROD-I-37=2M41

THK  BNK-3.6970L 20mm lead Grod Ball Screw CNC Router BSC-I-923=1E12

MITSUBISHI  HF-KP43B 400W AC SERVO MOTOR MOT-I-2767=2I35

THK  12SRS9XMUU980L,1R12B Caged LM Guide Linear Bearing LMG-I-1100=1C31

THK  12SRS9XMUU920L 1R12B Caged LM Guide Linear Bearing LMG-I-1099=1C31

IKO Robust linear Actuator  TU50S30A225L 155mm stroke 5Lead ACT-I-226=1G21

MITUTOYO Linear Gage Display it  EF-Z, EF-12ZR, 542-066 SEN-I-1881=9I13

ROCKWELL SMASG  MMC_BDP081PNB PCB-I-E-2150=9L31-1

SMC Genuine Japan  MGPM80-15Z Guide compact 80mm bore 15 strok CYL-GUD-I-116

MITSUBISHI  FR-E740-3.7K-CHT AC380-480V 3.5KW Inverter DRV-I-3753=9B15

COMMELL  FS97B Intel Core 2 Quad / Core 2 Duo PICMG 1.0 PCB-I-E-1110=9L21

SMC Slide Tabel Cylinder  MXQ25-150 150mm stroke CYL-TAB-I-857=4O21

ORIENTAL NIB 51K60VESMT2-30,5GVH30B AC MAGNETIC BRAKE MOTOR MOT-I-2970=9E1C

YASKAWA SIGMA5  SGMJV-08ADA2C 750W AC SERVO MOTOR MOT-I-2730=3A26

MITSUBISHI  FREQROL-E700 CC-LINK V2 FR-E720-2.2K  FR-A7NC DRV-I-996=9D17

NSK  W3205P-118PSSK1X-C5Z745L Grod Ball Screw Greased seal BSC-I-724=4J31

INOVANCE  SV630P,SV630PS5R5I AC SERVO DRIVE 750W DRV-I-2702=9D26

KEYENCE Digtal double speed Camera  XG-035M, 50mm, 75mm 1:2.7 OPT-I-563=P606

LS NIB MC-185A AC380-450V 50/60Hz Contactor 185A Metasol ELEC-I-967=8F15

HIGEN  FMA-KN05-AB10M5 AC SERVO MOTOR shaft rusted MOT-I-2740=6A33

THK NNB BTK2510-5.3F700LF Rolled Ball Screw 10mm lead BTK2510B BSC-I-569=1M21

MITUTOYO EH-10P,EH-102P,CODE NO. 542-071 SEN-I-1781=9I23

PANASONIC  MDDDT3530 AC SERVO 1kW DRV-I-2546=9D12

SUZHOU INOVANCE  H2U-4040MT,H2U-4040MT-XP TRANSISTOR IT PLC-I-2102=9L24

SMC Manif block NIB VV5Q41-0403T0 VLV-I-1161=8F34

PANASONIC  MSDA083D1ABattery AC SERVO MOTOR 750W DRV-I-2513=9C15