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。

VELCONICS TOEI NIB VLBST-14030-AB POWER1.0 1.4kW BS SERVO MOTOR MOT-I-2613=9E2B

HITACHI Progressive scan CCD camera NIB KP-F520WCL OPT-I-863=7C16

PLAST-O-MATIC NIB BSDA150T-NC-TF PTFE Diaphragm Valve VLV-I-545=6A26

CANON ROCKY For parts DRV CONT BM1-2628, E100663M000A1 PCB-I-E-1783=9G33

AGILENT  10898-60102 REV E000113 DUAL LAXIS 10898A PCB-I-E-2515=9M45

FESTO NNB DGE-40-1395-ZR-LK-RB-KF-GK Linear Actuator with LM Guide ACT-I-364=WA9

THK NIB SNS30C2QZSSC1E1000LPZ NIB 2R4B CNC Router  LMG-I-388=2D11

PARKER  S300V4F12I10T10M00 S300V4 stand-alservo DRV-I-1963=8F11

MKS NIB P99A13TKH63T20 Gas N2 10000 SCCM MFC-I-344=1L22

MKS NIB P99A-34004 Gas Ar 2000SCCM MFC-I-343=1L22

ASML  4022.471.80942, 4022 471 80961 SEM-I-864=9A2C

THK NIB GSR25T6UUFM5480LTF 1R6B LM Guide Linear Bearing LMG-I-1659=4C22

Linear Actuator 900mm Stroke GE1100 SR20W1100 SERVO 700W X Axis ACT-I-6@34

NORDSON EFD PICO Touch  7361217 SEN-I-2087=9A19

SANKYO controller  SC3150 MAT:4022.636.32221 dent/scratched SEM-G-276=9B47

DELTA TAU  UMAC 13it TURBO PMAC2 CPU 160Hz ACC-24E2 Assy' PLC-I-3078=9T33

DELTA TAU  UMAC 12it Assembly 603766-106 4-AXIS INTERFACE PLC-I-3079=9T33

THK Precise NNB Double Grod Ball Screw BNFN3205-5RRG02000LC5 BSC-I-1591=3K03

YASKAWA NIB SGMDH-32A2A-YR14 3200W UTSAE-B17BBF for replacement MOT-I-2224=9E48

ASML  4022.471.40434, 4022.471.66151,4022 471 40871 PCB-I-E-1582=ZB02

JENOPTIK  4022.488.17101,4022.631.19294,4022.637.43331 SEM-I-839=9G22

IKO NNB LWE25-3830L 2Rails Linear Guide Rail for replace LMG-I-1136=1DXX

INFICON Vacuum Gauge NIB CDG045D 10 Torr,8-VCR Ether CAT VLV-I-1370=6A13

SIEMENS  6SL3210-1SE23-8UAO,6SL3203-0CJ24-5AA0 CU310 DP DRV-I-3453=9N41

SCHNEIDER NIB BRS39BW460ABA AMAT P/N102077288 VRDM3913 MOT-I-3253=9R44

MITSUBISHI Genuine Japan NIB MR-J4W3-444B 400W AC SERVO DRV-N-3130=7C54

ASML  4022.631.20421,4022.637.43321 SEM-I-840=9G22

MITSUBISHI  MR-J3-700B 7kW AC SERVO DRV-I-2725=6B26

NIKON  X7-PM-P2BP 4S019-520 REV.A 23000-051,23000-035 PCB-I-E-1725=9G23

ASML  4022.634.19483, 4022 634 19491 PCB-I-E-1575=9G25

MITSUBISHI NIB MR-J2S-200B4 2kW AC SERVO 380-480V DRV-I-3937=9E15

X-ES SBC XCalibur4500  4022.668.68991 P/N 721-6337-10 PCB-I-E-1569=ZB02

QUANTEL BIG SKY LASER TECH For parts UL378B45 Power on SEM-I-973=P1

QUANTEL BIG SKY LASER TECH For parts UL378B45-3 Power on SEM-I-974=P1

EBARA JITSUGYO  EG-5000 UV OZMONITOR SEM-I-1188=9B47

PLASMART Matching   PFDUAL-6D71A-1 1.5kW 370 kHz / 13.56 SEM-I-1078=9A48

ASML  BD51-T06, 4022.472.98345 SEM-I-719=9A38

ASML  4022.632.11506 SEM-I-847=9G15

MITSUBISHI Japan Genuine NIB MR-J4-350B-RJ020 3.5kW AC SERVO DRV-I-4016=9F17

ASML  4022.634.12063,4022 634 21751 6/1,4022.634.15901 PCB-I-E-1574=9G25

THK NNB SHS30R4SS2840LP 1R4B Caged Type LM Guide Linear Bearing LMG-I-726=8D01

PARKER NIB EX620EAOR1201 Brushless Servo Motor MOT-I-3572=9E43

PANASONIC NIB HG-T1010,UHGT1010 SEN-I-2151=9A1A

DELTA TAU  UMAC 11IT TURBO PMAC2 CPU 4-AXIS INTERFACE PLC-I-2093=9D1A

OMRON  R88D-KN75H-ECT AC SERVO DRIVER 7.5kW for EtherCAT DRV-I-1678=8A12

MITSUBISHI Genuine NIB MR-J4W3-222B-MA011T030 Special Ordered DRV-I-4163=9M12

ASML  BD51-T06 4022.472.98344 SPM LRA RABX SEM-I-415=9A38

ASML  BD51-T06 4022.472.98344 SERV.502.31979 3RALM SEM-I-414=6B46

CKD NIB AMCP-FP-V7C Photoresist PUMP TEL VLV-I-1486=9H12

NIKKI NNB NCR-DDA0A2A-222 AC SERVO DRIVER DRV-I-2279=8F22

XANTREX  XPR 30-200 DC POWER SUPPLY SEM-I-1236=P3

MITSUBISHI discontinued old  MR-J2S-200B-S202U637 2kW DRV-I-4030=9D18

THK  SHS25C3SSE5000LTE 1R3B Extended Long Length linear Guide LMG-I-769=8D02

COMDEL  MATCHPRO CPM-1000 FP2216R2 SEM-I-1603=9A39

GVENT Brushless Geared Motor  MBGV08Y100M1 Ratio 1:100 Panasonic

MITSUBISHI NIB MR-J4-350A 3.5kW AC SERVO GENUINE JAPAN DRV-N-2732=7B51

MITSUBISHI NIB MR-J4-350A 3.5kW AC SERVO GENUINE JAPAN DRV-N-2732=7B51

MITSUBISHI JAPAN Genuine MR-J4-350B 3.5kW AC SERVO AMLIFIER DRV-N-3254=7C54

MITSUBISHI JAPAN Genuine NIB MR-J4W2-77B AC SERVO 750Wx2 Axis DRV-I-3409=7C56

NIKKI DENSO tDISC Series  NSR-RQSY2A-05,NMR-NTFGA2B-122A MOT-I-1578=8A42

SAMICK-THK NNB SHS35LR2UU1320L-Ⅱ 2R4B Caged Ball Long type LMG-I-1102=1C02

MITSUBISHI  FR-F720P-11K Inverter 200-240V DRV-I-3591=9D43

THK NNB SSR30XW4UU2920L 1R4B Caged LM Guide Linear Bearing CNC Router LMG-I-709

MITSUBISHI NIB HC-SFS502 5kW AC SERVO MOTOR MOT-I-3252=9R44

LS NIB AC Servo Motor Hollow Shaft APM-HE15ACH-JS 1.5KW MOT-I-2503=9F41

NIKON POWER SUPPLY  CP30-BA,GE53J,GE52C,NFA-YX,NF2030A-YX SEM-I-1618=P22

THK  HCR45A2UUF60/1000RF 1R 2B Curved R Guide Bearing Rod LMG-I-653=1JXX

SEJINiGB  SS010-250-A-C2-A060PM for 2,400W Servo RED-I-931=9F32

THK NNB SR35-3000LF Linear 1Rail Linear Motion Guide Radial Guide LMG-I-1191@10

MITSUBISHI  FR-F740P-22K 22KW 30HP INVERTER AC380-480V DRV-I-2966=9C47

NISSEI GTR NNB G3LB-50-60-220 1:50 2.2KW Induction W/ Brake MOT-I-3660=9Q47

MITSUBISHI NNB GEARED MOTOR GM-SB 1:200 1.5KW CLASS B MOT-I-3647=9Q47

THK NNB SHS25C3QZUUC1E4780LT 1R3B extend available long rail LMG-I-768=8D02

MITSUBISHI NIB Genuine Japan HG-SR202B AC Servo Brake Motor MOT-N-2826=6B54

P/N100902 BROOKS AUTOMATION  ATM Wafer PREALIGNER With Cable

THK NIB Linear actuator grod ball screw 20mm KR4620A640L0E1550 ACT-I-80=2IXX

THK NIB SNS25C2SSC1E910LPZ-V LM Guide Linear Bearing 2R4B CNC LMG-I-283=2D12

THK NIB HSR25LA2SSMS820LMS 2R4B Stainless type Linear Guide CNC LMG-I-278=2D12

ABB ROBOT MOTOR 3HEA506262-001 AC SERVO TAMAKAWA TS4885N9076E411 MOT-I-653=6A22

RV-50C-32.54 NNB Hollow type Precision Gear HW0380146-F W/O Input Gear #11=P15

THK  SHS30V2QZZZFM1800LF-Ⅱ 2R4B LM Gantry CNC Router QZZZSeal LMG-I-699=8D03

LS For parts or not worki LSLV0550H100-2C0FD Inside parts missing DRV-I-3683=P14

IKO NNB LRXD30C2R3280H/A2FW2 1R2B Roller Guide Linear Bearing LMG-I-1639=1K04

GLENTEK  SMC9915-500-000-4A-4-2, SMC9915-501-000-1,GP8600-70 DRV-I-2779=9D39

DELTA TAU  UMAC STAGE CONTROLLER ACC-24E2A OPT-1 INPOW-T PLC-I-2481=9D2A

DELTA TAU  9it UMAC,ACC-24E2A TURBO PMAC2 CPU 240MHz(F0,2B PLC-I-2499=9D3A

SHINKO  SDD-N-20A4K00-1-7 AC SERVO DRIVER 4KW DRV-I-2522=9D44

THK NIB GSR25T3UUFE3080LRTF 1R3B W/ Added Rack Extend Rail LMG-I-1657=4C22

SAMICK-THK SHS30-3000LF 1Rail Caged Ball LM Guide Linear Bearing LMG-I-912=8H02

SANYO DENKI  P60B13150HBPD3 1.5KW AC SERVO MOTOR MOT-I-3129

NSK NNB LH304112BNK2-02PCZ4112L Split Long Rail 4112mm 1R2B NH30 LMG-I-944=1F12

AGILENT  DUAL LAXIS 10898A,REV D99111 10898-60002 PCB-I-E-1723=9G23

NABTESCO VIGO Drive NIB HW380146-F,RV-50C-32.54,P31L05-10 RED-I-962=P15

MITSUBISHI NNB HC-SFS152G1 J2S Series CNVM-4115-6 6:1 CYCLO MOT-I-1737=8B53

MITSUBISHI NNB J2S type HC-SFS152G1 CNVM-4115-11 CYCLO ratio11:1 MOT-I-1736=8B53

RB60040UU  THK Big size Cross Roller Table Bearing rotary swiveling 600X700

MITSUBISHI discontinued NIB HF-SP202B 2kW MELSERVO AC SERVO MOT-I-3469=9E44

DELTA TAU  UMAC TURBO PMAC2 CPU 4-AXIS INTERFACE POWER IT PLC-I-2084=9D1A

ROSEMOT NIB 8800DW030SJ1N1D1E5M5Q4 VORTEX FLOWMETER VLV-I-1003=9J22

MITSUBISHI NIB HG-SR352 AC SERVO MOTOR Genuine JAPAN MOT-N-1668=7BXX

LS NIB Inverter LSLV0110G100-4EONN AC380-480V, 15HP VFD DRV-N-3101

YASKAWA  SGDMP-75AC-SD1 7.5KW SERVOPACK DRV-I-2965=9C47

NISSEI GTR NNB G3LB-50-200-150 1:200 1.5KW Brake Induction Motor MOT-I-3657=9Q47

MITSUBISHI NNB GEARED MOTOR GM-HY2MB-RH 1:10 2.2KW Hyoid Geared MOT-I-3651=9R47

TSUBAKI  LINIPOWER SCREW JACK JWH150USH2.9J-TK 290mm stroke ACT-I-328=WA4

MITSUBISHI NNB J4 HG-SR352BJ 3.5KW Key AC Servo Brake MOT-I-2986=3A36

MITSUBISHI NNB J4 HG-SR352BJ 3.5KW AC Servo Brake MOT-I-2988=3A36

ULTRASONIC  BRANSON S8580-24 SERIES 8000 POWER SUPPLY DRV-I-2973=9D4A

SAMICK-THK NNB SR25WUUE2860LY LM Guide Linear Bearing 1Rail 2Block LMG-I-710

YASKAWA  SGDM-60ADA SERVOPACK DRV-I-2752

THK NNB SHS25C3SSE2740L 1R3B Caged Ball LM Guide Linear Bearing LMG-I-788=8D02

ASE  AFC-3001-PPD Automation Impedance Matching it SEM-I-1051=9A4B

MITSUBISHI  L26CPU-CM SN:18 CPU IT PLC-I-2271=9L13

MITSUBISHI J4 Genuine JAPAN NIB MR-J4-200B 2kW MELSERVO DRV-N-3296=7B51

MITSUBISHI GENUINE JAPAN NIB MR-J4-200A AC SERVO 2kW DRV-N-2731=7B51

ABB  DSQC-202 9K YB560103-AC/8 3E 041242 PCB-I-E-386=2MXX

THK NNB SNS25C2SSC1E1035LPZ-V LM Guide Linear Bearing 2R4B LMG-I-358=2G41

KLA  ACROTEC DCC 710-570907-00 REV AO PCB-I-E-334

KLA  81B 710-566007-00 FAB 073-653015-00 DIN-96CPC-SR1-TR 4694 PCB-I-E-330

KLA  ACROTEC N

Nabtesco Reducer GH24-11 P30S030C00 NNB RED-I-270=IK13

DUMA OPTRONICS SPOTPC1 PCI-D024 NIB ETC-I-171

Cross RollerRing  THK RV352 table rotary bearing Swivel 270X440X40 preload

951-1027 ANELVA 2.5inch Pneumatic Valve sensor attached @34

MITSUBISHI NIB HC-RFS153BK AC SERVO MOTOR 1.5kW Brake  Key Type MOT-I-904=3L43

THK NIB SNS25C2SSC1FE910LPZF LM Guide Linear Bearing 2R4B SNS25C LMG-I-360=2G41

OMRON  FZ4-600-10 CONTROLLER VISION Sensor FZ4 Series Ver4.21 SCR-I-188=6B42

SANYO DENKI  P60B18550RXS0E 5.5kW AC SERVO MOTOR BL SUPER MOT-I-1221=3B31

KENSINGTON LABORATORIES  PRELIGNER 145349 /W Maxton DC motor SEM-I-100=6A27

MITSUBISHI NNB IUR-0752A RFW-311B PCB-I-E-749=6CX2

MITSUBISHI NNB IUR-0754A RFW-311B PCB-I-E-747=6CX2