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。

919471-001 / HEATER JACKET, ASSY, UPPER FORELINE / NSI

102999-001 / PCB BOARD, 102998-002 / MICRO CONTROL COMPANY

10020190 / 8250 CHUCK RESTRAINT / AXCELIS TECHNOLOGIES

ES1805-220177-22 / RING SHIELD HARD-LD H6..SCCM-OX 300MM / TOKYO ELECTRON TEL

0040-49609 / MANIF OUT RIGHT, CHAMBER LID S / APPLIED MATERIALS AMAT

99-542595-01-001 / HARNESS-INTERFACE 90S HANDLER RH ASSY / SVG

1080-00143 / AC SERVO MOTOR 100W 200V W/INCR ENCOD SGMPH-01AAE-YA11 / AMAT

228-005 / FLOWMETER-ODYSSEY /FUTURESTAR

414501 / PWB ASSY, SMIF LOADER CONTROL BOARD, 414491 / FUSION SEMICONDUCTOR

1789830 (LOT OF 7) / GRAPHITE REPELLER PLATE / AXCELIS TECHNOLOGIES

421132-000 / KIDDE DUAL SPECTRUM FLAME DETECTOR PM-5MPX / DET-TRONICS 421132-000

E17518120 / LINER BUSHING PEDESTAL QUARTZ, TALL NO CH / VARIAN

0020-21028 /BLADE 8 TRANSFER FROG LEG /APPLIED MATERIALS AMAT

MSMD041G1T / MOTOR ASSY, HANDLER Z AC SERVO MOTOR / PANASONIC

UP-897MD / VIDEO GRAPHIC PRINTER / SONY

 UP-897MD / VIDEO GRAPHIC PRINTER / SONY

HF-KP23BK-S10 / AC SERVO MOTOR INPUT 3AC 111V 1.4 A OUTPUT 200W / MITSUBISHI

6799E4 / CONDENSOR FAN 3 HASE 380-440V 1290RPM 147W / NICOTRA

SDC11068G / WBL-PS11V68A ADVANTEST POWER SUPPLY 270-324V DC 3.6 AMP / SHINDENGEN

CASCADE JOYSTICK /CASECADE MICROTECH JOYSTICK Z THETA, INDEX , TURBO

7XE0-050E () / WATLOW AOV, LO-40203500-9919A,7XE0-050E / HIGH YIELD TECH

SERV.470.07411 / CHERRY COMPACT KEYBOARD / ASML

0233852-000 / ALIGN ASSY WITH PREAMP AIT ROHS / KLA CORPORATION

810-010473-009 / PCB, RF INTERFACE, FLEX45 / LAM RESEARCH

0040-42291 / MANIF, LINER, HART 300MM / APPLIED MATERIALS AMAT

5044-000158-11 (LOT OF DM S / PCB IF IL NUMBER 01 TOB1 076 / TOKYO ELECTRON TEL

857-083115-001 / DR ROCKER VALVE B PM KIT 427878 / VAT

MSM042A1AE / AC SERVO MOTOR, 400 W, 106 V, 2.5 A, 400 HZ / PANASONIC

3161151 / OPERATOR PANEL BACKPLANE ASSY / BTU ENGINEERING - BRUCE

800-1773A/ ACCELNET SERVO DRIVE AMAT PN 0190-43437 /COPLEY

3161150 / OPERATOR PANEL BACKPLANE ASSY / BTU ENGINEERING BRUCE

60559 / CKA, SYSTEM BUS MONITOR / ELECTRO SCIENTIFIC INDUSTRIES

77-604-0300510-01 / ASSY ELECTRON SOURCE APT DRIVER MODULE (GAPDRD) / HMI

MFA090HA5NSC/SERVO MOTOR ASSEMBLY/PANASONIC

020188/EXHAUST FAN CLE2L2 ASSY,PWR SPL RACK 115VAC .48/.50A 50/60HZ /COMAIR ROTR

102534-000 / PCB BD, BUS CONTROLLER, 102533-000 / MICRO CONTROL COMPANY

PME-111BAAA () /SOLENOID VALVE BLOCK W/ 912B-PM-111BA/ADVANCED PNEUMATIC

1517200 / CB, ASSY LEAD SCREW 170 / AXCELIS EATON

2-39-64024 / ARM 200MM WAFER SK-2000 / DNS DAI NIPPON SCREEN

7-39-34039 / SEQUENCER MEMORY CASSETTE, A3NMCA24R / DNS DAI NIPPON SCREEN

91-01765A / COLLAR WIDER, 200MM, SNNF TIGHT FIT, 089-1004 / WEST COAST QUARTZ

0020-24821 / PLATE RIGHT HAND 300MM / APPLIED MATERIALS AMAT

0020-20658 / SOCKET RETAINER 8 INCH DEGAS / APPLIED MATERIALS AMAT

3M10-356825-13 / RING, SHIELD OBGP A... / TOKYO ELECTRON TEL

3870-0 / VALVE TURBO ISOLATION VALVE / MKS

BGR-021938 / BOARD,TGFC I/F(H,P) / ADVANTEST

0020-31463 / CARRIER,COMPLIANT, EXT CATHODE / APPLIED MATERIALS AMAT

715-140153-003 / 853-210621-308, ASSY RING CPLG LVLG ESC 8 SEMI / LAM RESEARCH

0100-AE018 / PBS SYSTEM MOTHER BOARD / APPLIED MATERIALS AMAT

2-F2-D2863 / SPINCHUCK 150MM,200MM DIA WAFER / DNS DAI NIPPON

KV8-5-122 SS-4CPA2-50 ASSY / PNEUMATIC VALVE, POPPET CHEC / KAY PNEUMATICS

ER-VW / ULTRA THIN, STATIC REMOVAL IONIZER MAIN IT SPOT TYPE / PANASONIC

3156023-000F / AMPLIFIER, MODEL-STQD800-C2-MC2XPVDF / VERTEQ

250C-1-D/ PRESSURE FLOW CONTROLLER TYPE 250, 00-671311-00/ MKS

99-46670-01 / HARNESS ASSY 99-46670-01 N 99-46779-01 / SVG

70050505 / ASSY, CABLE, AMP CNTRL PWR / BROOKS AUTOMATION

0020-31737 / INSULATING FLANGE, TAPERED, ESC, TSB / APPLIED MATERIALS AMAT

0240-76382 / KIT, STANDARD CAL TOOLS, CENTURA / APPLIED MATERIALS AMAT

MPAL-VI 569926 / SOLONOID VALVE ISLAND K302 CABLE VMPAL-KM-V-SD25-IP67-5 /FESTO

FBPCB-0245 / HARD DRIVE, DICER (DFD-651) / DISCO

0010-17454 / ASSEMBLY SOURCE HEATER / APPLIED MATERIALS AMAT

9830-2030 / PCB, SENSRO I/O REV 3 / AG ASSOCIATES

0021-26655 / WALL,SLIDE UP,MEGASONIC,FM 4910,200M / APPLIED MATERIALS AMAT

200-0029S / VPM 4114-01 VISION PROCESSOR / COGNEX

424953-9002-000 / ROTATE WHEEL FOR ZEISS ASSY / ZEISS

714-801029-003 / BRKT, MTG FL SNSR, BHD MTG / LAM RESEARCH CORPORATION

ZC872460P / THERMO CHUCK 8 IN THERMAL INDUCING PLATFORM / TEMPTRONIC CORP

2100-0251-01 / MI-O CARD / WINSYSTEMS

1505500 / PCB, SHOWER, ELECTRON / EATON

03-81723-00 / PCB MOTOR DRIVER ASSY STK 8A (SCHEMATIC:06-81723-00) / AMAT

853-016923-003 / 9945 CMG 9C22 SHIELDED, CABLE / LAM RESEARCH CORPORATION

71330G / 100 SERIES .32HP 264LB TORQUE RATIO 30 W/ WENCH ASSY / BOSTON GEAR

723081 / PCB ASSY WS ARRAY BOARD (8MHZ) / ASM AMERICA INC

AKM24F-ENM2C-00 /SERVO MOTOR 3-PH 5.5:1 RATIO 023PLX0055-XX-2312/ DANAHER MOTION

622A11TAE / BARATRON 10 TORR PRESSURE TRANSDUCER / MKS

SMVE 2420032 / MESA SERVO AMPLIFIER 60-250 VDC / MESA GMBH

2-F3-38335 / CERAMIC END EFFECTOR 60A 6 INCH / DNS DAI NIPPON SCREEN

10017773 / TRANSISTOR-SERVO CONTROLLER HA-320-2-S6 / HARMONIC DRIVE SYSTEMS

165200-001 / ANALOG INTERFACE BOARD 604129-07 CONFIGURED / SVG

799012003 / CABLE, CALDIAG, LDBRD, DEFT / SCHLUMBERGER

64-116835-A400 / GEAR MOTOR / NEMATRUE

0021-02983 / SHIELD,INNER,TXZ / APPLIED MATERIALS AMAT

0517346-S / SUB KIT - 9600 #13 / CALIFORNIA SEAL  FASTENER

917-0110 / CRYOPUMP REGENERATION KIT MANUAL / EBARA

0020-31683 / RING, TOP, 200MM, XTAL TIER IV / APPLIED MATERIALS AMAT

0021-09708 / INSULATOR, GDP, TRENCH-NARROW GAP / APPLIED MATERIALS AMAT

0100-00024 / W PWB, KEYBOARD INTERFACE / APPLIED MATERIALS AMAT 8330

BR-3-42116-1 / PARKER BACK PRESSURE REG. 0-60 1 INCH NPT  IN PACKAGE

0100-35066 / CHAMBER PNEUMATIC INTERCONNECT BD /APPLIED MATERIALS AMAT

161-546-350 / BALL VALVE, 4-IN, EPDM, TYPE 546, PVC-U, PN16 / GEORG FISCHER

0010-02170 / WRIST ASSY,LEFT,HPROBOT / APPLIED MATERIALS AMAT

555013-000055 / SERVO MOTOR SGMP-01A312B / MIRAE / MIRAE CORPORATION

0020-83950 / EPG3 APERTURE (VIT), FRONT CARBOGRAF 500 / APPLIED MATERIALS AMAT

CN3402K-R / POWER SUPPLY, RS 232-C, RELAY, 250V, 48-62HZ, 382596105 / OMEGA

722B11TCD2FA / BARATRON PRESSURE TRANDUCER CAPACITANCE MANOMETER 10 TORR / MKS

990-004765-011 / DIGITAL FLOW CONTROL MODULE / PNEUTRONICS

IDS-3112R-60XGA1E / MONITOR, OPEN FRAME / ADVANTECH

A89-004-01 / PCB OPTICAL SENSOR NO WIRE CONNECTOR WITH EXCHANGE / GASONICS

30330-11351C / SIO CONTROL MODULE / ADEPT TECHNOLOGY

0018-BLF / CU BLT / METAL FLEX WELDED BELLOWS, INC

0190-02689 / PI/O, OHT HOKUYO DMS-HB1-Z09, E84 VARIAB / APPLIED MATERIALS AMAT

XCA-00-20-195-70-FL251301 W ASSY / CKD CYL. ASSEMB. EHS-2001-195 NL534540 / CKD

16-900923-00 / DIFFUSER,HEMI,SINGLE ROW,RF SOURCE,G AND E / LAM RESEARCH

88-21950-360/ ANAFAZE 4CLS TERMINAL BLOCK BOARD / WATLOW

TPS72012YZUR (000) / ICCTRLMGT TI TPS72012YZUR 5DSBGA LDO1.2V 350MA

A4041-9515NE /STEPPING MOTOR, 5-PH, ENCODDER 500P/R, DC5V 0.08A, DC 2.8A/ VEXTA

715-067214-002 /VAT, ROCKER, CU / LAM RESEARCH CORP

0020-27313 / PEDESTAL, SHIELD, 8 INCH / APPLIED MATERIALS AMAT

HDD15-5-A / CONDOR POWER SUPPLY, 15VDC,230-240V,50-60HZ,083-58035 / CONDOR

B2214-S25 /GEMS SENSOR 24VDC, 7W /GEMS SENSORS  CONTROLS

E17002890 / MTG PLATE / VARIAN

0021-04268 / GAS DISTRIBUTION PLATE, P, 133 HOLE / APPLIED MATERIALS AMAT

4S015-227/NK8601AP.C.B.(EQUIVALENTTO4S015-258AN)/NIKON/TDRA/XILINX

601-17175 / LASER, PILOT (AB LASERS) (10000-24DM S / AB LASERS, INC

DT962J (WITH DISPLAY) /NOAH PRECISION, PCB DISPLAY BOARD WITH DISPLAY CONTROL SC

25-06711-01 /CONTROLLER HANDHELD SCANNER CABLE ASSEMBLY POWER SUPPLY 00049/ SCP

0041-12638 / BRACKET LID WATER BULKHEAD 30MM TIN / APPLIED MATERIALS AMAT

001-05258-001 / ESP PEEK RING AEP BTVY / ESP SPARES, INC.

0021-04269 / G.D.P., P 13 HOLE (STD P/N 0020-3148DM S / APPLIED MATERIALS AMAT

A200 / CPU CARD ACORN TECHNOLOGIES VIDEO / AMRAY

90792-2 / PCB DIGITAL ELECT. OPTIC CNTRL 800-1201D W AUTO FOCUS STIG PC5 / AMRAY

671880 / PCB BD 00-671880-00 / VARIAN

2800293 / MICROSTEP TRANSLTR MID014-1002 / LAM RESEARCH

E11287183 / CONDUIT ASSY, FIBER OPTIC, REMOTE CHIL / VARIAN

0020-99640 / MIDDLE LINER, LEAP II BEAMSTOP / APPLIED MATERIALS AMAT

E3610A / HP DUAL RANGE POWER SUPPLY - AGILENT / AGILENT TECHNOLOGIES, INC

 E3610A / HP DUAL RANGE POWER SUPPLY - AGILENT / AGILENT TECHNOLOGIES, INC

164364-001 / SHIELD, REVC / FSI

1D86-022038-13 / CABLE PC BTM NOISE FILTER RESISTANCE THERMOMETER TEL / HAYASHI

540241015 / REGULATOR, 1-1/2 UHP PVDF/PTFE V82 W/SPG / FRANK

520009 / S08-V2-R100HF-ER-G3-XX-14 VALVE GAUGE I/O / CARTEN

NVT-910-00145 / GAS STICK W/AZ1315S-2PW-FV8-FV8, AP3800S-MV8-MV8-00, 4277172