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。

  DWYER PHOTOHELIC PRESSURE SWITCH GAGE N510 3003SGT

   BOSTON GEAR 20:1 SPEED REDUCER F715-20-B5-G

  FALK 1110T10 COVER-GRID ASSY 0776210

  MITSUBISHI FREQROL A200 3HP INVERTER DRIVE FR-A240-2.2K-UL

 ABB PC BOARD DIODE IT DSSS 170 DSSS-170 ISOLATED 24VDC 4897-0001-A

   FISHER ROSEMOT 3000PSI SMART TRANSMITTER 1151-GP9S22-B1

  LINMOT SWITCHING POWER SUPPLY S01-72/600

   AVATAR 600A 480V THYRISTOR POWER CONTROLLER A3Z-48-600-3RD 3-PH

   FAG SPHERICAL ROLLER BEARING 22324-ASZ12EB.MA 22324

 VALMET/NELES NCU-2 NETWORK CONN PC BOARD W/ 2 ON-BOARD HDD'S A413372

   KEYENCE ELECTROMAGNETIC FLOW SENSOR FD-M10ATP

 ABB SWITCHGEAR SOLID STATE POWER SHIELD TRIP IT 609901T003 609901-T003-FR

FOR PARTS SCHNEIDER ELECTRIC 6000RPM SERVO MOTOR BMH1002P16F2A

   ABB SWITCHGEAR SOLID STATE POWER SHIELD TRIP IT SS4 609905-T501

 ABB SWITCHGEAR SOLID STATE POWER SHIELD TRIP IT 609904-T501-N 609904T501N

 FURNAS SIZE 4 MOTOR STARTER 14JT32A* W/ 48BSM3M20

 METTLER-TOLEDO 5KG/10LB DIGITAL WEIGHING SCALE ICS435A PBA655-A6

  ROSEMOT PRESSURE TRANSMITTER 300S1AAE5M5 1199WDB10ARTW30DAA1

   TRABON MAXI-MONITOR MARK-III IVERSAL CONTROLLER MARK-III

   HITACHI STATIC VOLTAGE ADJUSTER MODULE 652-11 331WM51662 ASE300A

 BALOGH ETHERNET/IP RFID INTERFACE CONTROLLER BIET/MCMC

  ALLEN-BRADLEY 3PH 1HP .75KW AC DRIVE 25A-B5P0N104

 WESTINGHOUSE DRIVE MODULE 455A762G01

   EATON CUTLER-HAMMER SV9000 POWER BOARD CB00002-5040

FOR PARTS OR REPAIR MICROFAST CONTROLS RESOLVER DECODER MODULE ASY-M4001-D360

FOR PARTS OR REPAIR CUTLER-HAMMER SOFT STARTER S801N37N3S

   BALLUFF ID SYSTEM PROCESSOR BIS00AA

 ANDERSON DANAHER CONTROL BOARD 046147-02

NOS COLUMBIA MARKING TOOLS NO.751 STAMPING AIR STAMPING TOOL 851-OK-40-00

 MAZAK H-400N SEQUENCER CONTROLLER BOARD MPS-510 510A 9102024 182903A7

  BONITRON 230-240VAC 15A/3.8A 25 Ohm Min BRAKING TRANSISTOR M3575T-L15

  ALLEN-BRADLEY 6000RPM KINETIX AC SERVO MOTOR TLY-A230T-HJ64AA

   RELIANCE 3/4HP 1800RPM 3PH DUTY MASTER MOTOR P56H7637

 FACTORY  SKF SPHERICAL ROLLER BEARING 22226-EK

  HONEYWELL ANALOG OUTPUT MODULE 51304754-100

FACTORY  HONEYWELL ANALOG OUTPUT MODULE 51309152-175

 ALLEN-BRADLEY 3HP VARIABLE FREQUENCY DRIVE 1336S-BRF30-AN-EN4

   APPLIED MOTION 2-PHASE 4.5VDC STEP MOTOR HT-34-490D

  OSBORN FLANGED YOKE STYLE LOAD RNER FLRY-6

   ABB CIRCUIT CARD 58094498-DB-900620

 DANAHER PARTLOW CONTROL BOARD 046147-02

GENUINE   BETAMICRON HYDAC HYDRAULIC FILTER 1253114

  EMERSON ROSEMOT 1151 PRESSURE TRANSMITTER 1151GP6E22B1 0-100PSI

 SQUARE D SIZE 4 DC CONTACTOR 7004-MF03

  ABB DSPB-120 DISPLAY PROCESSOR MODULE 57310290-BR

   ALLEN-BRADLEY POWERFLEX 525 1HP AC DRIVE 25B-D2P3N104

    ALLEN-BRADLEY POWERFLEX 525 1HP AC DRIVE 25B-D2P3N104

 MARSH VIDEO JET CIRCUIT BOARD 401-0001-101

   METSO AUTOMATION CIRCUIT BOARD U4500666

  METSO VALMETSP CONSISTENCY TRANSMITTER SS SS RDU

  ALLEN-BRADLEY DC DRIVE FIELD PULSE BOARD 1395-170131 SP-170131

  EPIS 24VDC .5A CONTROL PANEL 10850500.01

 ALLEN-BRADLEY 3HP VARIABLE FREQUENCY DRIVE 1336S-BRF30-AN-EN4-HA2-L6

   BONFIGLIOLI GEAR REDUCER W75UD3010P80B14B3

   BELDEN 30-METER CAT5E 600VTC IP20 CORDSET EV502T1-B59030

   WINSMITH 60:1 1750RPM GEAR REDUCER 920MWU

  JOHN CRANE SEAL 3" TYPE 8B1 DRIVE SHAFT PACKAGE SEAL CF-SP-73873-2

   FALK GEAR COUPLING HUB 1040 G FLEX BORED 4.7445-4.7460

  MAGNETROL 120/240VAC 500PSI LIQUID LEVEL SWITCH XC29-1B20-3KA

 MOTOR CONTROLLER MA7008

   ALLEN-BRADLEY 15-60RPM ZERO SPEED SWITCH 808-G1

1     ALLEN-BRADLEY 15-60RPM ZERO SPEED SWITCH 808-G1

  MERSEN FERRAZ SHAWMUT 5.5KV CAPACITOR FUSE 9F60RJD080

  SKF SPHERICAL ROLLER BEARING 22322 CJ/W33

   ABB TERMINAL BLOCK BOARD SGHF-1001 58113972 TYYPPIKILPI

 TOSHIBA 3HP 2.2KW VARIABLE SPEED DRIVE VFAS1-4022PL-HN

   JOHN CRANE 3" 8B1 SEAL ASSEMBLY CFSP73873-3 / SF511D1

  DOMINO A PLUS BACKPLANE BOARD 3-0130037 3-0131037

   HORTON REPAIR KIT 917400

 ALLEN-BRADLEY SER.A 0.75KW 1.0HP POWERFLEX 40 AC DRIVE 22B-D2P3C104

   GE FANUC HORNER RELAY OUTPUT MODULE HE693RLY110A

   NEXEN REPAIR KIT 917400

   BOSCH HYDRAULIC SOLENOID VALVE / MANIF 9810235042

   FAG SINGLE ROW CYLINDRICAL ROLLER BEARING N321-E-M1-C3

   ITROL POWER SUPPLY  PC INPUT BOARD 9280B-2

   ITROL POWER SUPPLY  PC INPUT BOARD 9280B-4

   NELES AUTOMATION CONTROL BOARD A413076

  FORCE FLOW DIGITAL WEIGHT INDICATOR DR40TBS

 HANNA CYLINDERS 250 PSI AIR CYLINDER T751-CC-2.50-12.00-12A

 RELIANCE .75HP 230/460V WASHDOWN DUTY MOTOR VWDM3542

   REXROTH CONTROL MODULE MPH-08VRS-D5-1-SRV-NN R911334751

 WESTINGHOUSE 300V 400A FUSE A030ARE400C1G 7831D11-001

 VAN DORN DEMAG REV. E ANALOG TERMINAL BOARD 330039

FACTORY  ALLEN-BRADLEY SER. A POWERFLEX 525 1.0HP AC DRIVE 25B-D2P3N114

 FANUC CIRCUIT BOARD A16B-2202-0421-17

   ABB CPU PROCESSOR MODULE BASE 3BSE018100R1

 BALLUFF PROXIMITY SWITCH BNS-816-B04-KHG-12-602-SP02

 SQUARE D SIZE 3 110/120V COIL REVERSING MOTOR STARTER 8736SE02

NOS FURNAS NORDIC SOFT START MOTOR CONTROLLER 91DB3400A 1634300

 FURNAS SIZE 4 MOTOR STARTER 14JT32A* W/ 48BSL3M20

 ALLEN-BRADLEY DRIVE BOARD 74103-244-51 1336-BDB-SP1C

   FANUC CONTROL BOARD A16B-2200-0090/05A

   TIMKEN 10' ROLLER CHAIN 80-2R

 BENTLY NEVADA 25MV/G TRANSDUCER 330425

 ALLEN-BRADLEY SER. A FLEX I/O 8-CHANNEL INPUT MODULE 1794-IRT8

  ALLEN-BRADLEY CONTROLLOGIX 6PT ENHANCED TC INPUT MODULE 1756-IT6I2

1    ALLEN-BRADLEY CONTROLLOGIX 6PT ENHANCED TC INPUT MODULE 1756-IT6I2

  YOKOGAWA 100-240VAC DIGITAL INDICATING CONTROLLER UT35A-000-11-00

  HONEYWELL ST3000 SMART TRANSMITTER W/ FLANGE PLATES STR126-1A10-2454C

 HONEYWELL ST3000 SMART TRANSMITTER W/ FLANGE PLATES STR130-A10-2454C

  REXNORD FALK 1120T STEELFLEX GRID 0758255

   AVERY WEIGH-TRONIX STAINLESS STEEL 115V WEIGHT CHECKER 3275

    AVERY WEIGH-TRONIX STAINLESS STEEL 115V WEIGHT CHECKER 3275

  ENDRESSHAUSER LIQUILINE M TRANSMITTER CM42-IAA011EBS00

   BROWNING 2-3/8" BORE 5/8" KEYWAY TIMING PULLEY 18XHB300

  SEW-EURODRIVE .25kW 230/460V 1.29/.64A GEAR MOTOR SA37-DRN71MS4

  TELEDYNE MAX 5 COMBUSTION EFFICIENCY ANALYZER MONITOR

   ROSS 24VDC COIL SOLENOID VALVE D2773A8082

   KAMCO ROTATING CAM LIMIT SWITCH K80-104-D-SP

 PARKER 4" BORE 11.75" STROKE PNEUMATIC CYLINDER 4.00D2ALU19AC11.750

 NORGREN 4-STATION MANIF VSP151010A W/ (4) VALVES VS18S517DF213A

 NORGREN 4-STATION MANIF VSP151011A W/ (4) VALVES VS18S517DF213A

 NORGREN 4-STATION MANIF VS180400012 W/ (4) VALVES VS18S517DF213A

 NORGREN 4-STATION MANIF VSP151010B W/ (4) VALVES VS18S517DF213A

 PARKER 4" BORE 9.25" STROKE PNEUMATIC CYLINDER 04.00-D2ALU19AC-9.250

   GENERAL ELECTRIC DRIVE BOARD IC3600LRDJ1A

  HYDAC ELECTRONIC PRESSURE SWITCH 909597

  ALLEN-BRADLEY 2.2 KW 3 HP POWERFLEX 40 AC DRIVE NO COVER 22B-B012N104

1    ALLEN-BRADLEY 2.2 KW 3 HP POWERFLEX 40 AC DRIVE NO COVER 22B-B012N104

  ASCO EXPLOSION PROOF SOLENOID VALVE EFHT8342G20

  STELLAR 52A 200-600VAC 3PH SOFT STARTER SR35-052

  ALLEN-BRADLEY GUARDMASTER SAFETY LIGHT CURTAIN T4A3400YD

 FUJI ELECTRIC 5HP VARIABLE DRIVE FRN005G9S-2UX

 OXWELD AND C. CORP HIGH CAPACITY INDUSTRIAL REGULATOR TYPE R-52

 FANUC AC SERVO MOTOR A06B-0317-B005

 DODGE TIGEAR 60:1 SPEED REDUCER 20Q60L56

 PARKER PNEUMATIC CYLINDER P35000000000-00305

 ENDRESS  HAUSER LEVELFLEX M SS TRANSMITTER FMP41C-AMTLKB21B4A

   RELIANCE ELECTRIC AC VS DRIVE AMMETER AMP METER 34C409

  WESTINGHOUSE ECT-5 50:5 CURRENT TRANSFORMER 254A586G06

 REXROTH SE352 CONTROL MODULE 0608830262

 MOTORTRONICS CIRCUIT BOARD REV. 1 36-0470