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。

678827 / 4 T/C MOT ADAPTOR / APPLIED MATERIALS AMAT

2E559030-00 / INSPEX PCB BOARD / INSPEX

308853-015 / SPARE I-O BOARD,16700,122-5011-2 / FORTREND

0005349 / SCIENTIFIC MICRO SYSTEMS OMTI 8620 HARD DRIVE FLOPPY CON / SMS

713-059990-401 / HLDR, HSG, WDO, TCW, EXT COIL ENCL / LAM RESEARCH CORPORATION

28-8875-038 / PCB ASSY REV C. SMIF RELAY CE96 / ONTRAK SYSTEMS

0140-09986 / HARNESS,INTERLOCK SIGNAL LINE,LIQ. INJ. / APPLIED MATERIALS AMAT

0995-10719 / MEMBRANE, DISPLAY, PANELTEC AXCELIS / MATRIX

THT-B111 / HUMIDITY  TEMPERATURE TRANSMITTER / SHINYEI

IR1020-N01-X3 / PRECISION REGULATOR / SMC

103150101 / HPS PIRANI GUAGE / MKS

4022-486-86191/000000-1214.438 ASML DOE1 MP2 40-X ADE 193MM HOLDER 5 SLOT/ZEISS

2506416-21 / ASM POWER SUPPLY PCB CARD / ASM AMERICA INC

04-353977-00(LOT OF 6) / KIT,PROCESS,ALO,STAR PATTERN,C3SPD-M / LAM RESEARCH

130140-10 / IDS A-D BOARD / IDI INTEGRATED DESIGNS INC

PF61G-2NC (0.5 INCH NPT) / PISTON ACTUATED VALVE (0.5 INCH NPT) / SPIRAX SARCO

VV5J3-32P-04-C4-X184 / MANIFOLD W-SI IT / SMC

0021-20437 / DISK 8IN B101 TI SHUTTER / APPLIED MATERIALS AMAT

527-34454-04 / PCB PROCESSOR I O / EATON

C41213000 / PV16KA 0 7 BAR 24V 025A PNEUMATIC ANGLE VALVE / EDWARDS VACUUM

ZX1101-K15LOZB-ECL / SMC VACUUM VALVE ZX1101-K15LOZB-ECL / SMC

VC1P 3X125A / SWITCH DISCONNECTOR, 400V, STS 286359 / KEMA KEUR

7.01.129 / CPU PROCESSOR BOARD DPC / TEMPRESS - GENERAL SIGNAL

993-50105 / CLAMP QUARTZ CHAMBER / MATRIX

11505 / CIC PCB / REEDHOLM

E15005940 / PCB BOARD / VARIAN

BM06241R / BM06241R.J AMP SERVO LOW PWR PB02807 / BROOKS AUTOMATION INC

703-0794R01 / POWER SUPPLY 2T 170-522 / BROOKS AUTOMATION INC

2330901-01 / ADVANCE SERIES ASP MANIFOLD VALVE A55M-2A-2iCB-V465D / LAM

ZRWT2230-ME / TDK NOISE FILTER / TDK

VLF-MC1005-02 / FLUOROTRAC MASTER CONTROLLER 5 / ASYST TECHNOLOGIES

NB-20S4PD / PCB BOARD / IEI TECHNOLOGY CORPORATION

2-39-45320 / H8PS-8AF/CAM POSITIONER 24VDC 4.8W MAX OUTPUT 100MA MAX 30VDC/OMRON

PX-W4012TS / PLEXWRITER 40/12/40S SCSI RECORDER CD-RW P24698-001 / RUDOLPH TECH.

1D81-000129 / PCB, ITY II CONTROL TYB222-1SW / TOKYO ELECTRON TEL

605-064676-005 / PCB, VME 7671, 350-00007671-42000A / LAM RESEARCH CORPORATION

70412556100 / (S)MOD G ALIGNMENT -1 BOA / AMAT

002-1735-11 () / BROOKS POWER SUPPLY CABLE / BROOKS AUTOMATION

002-5838-03 / CABLE, CNTLR, ALIGNER, 002-8538-03 / BROOKS AUTOMATION

003780 / PCB ROBOT SIGNAL BOARD PARAGON ELEC / BROOKS AUTOMATION

77-618-0800301-00 / PLC JCTION BOARD ( PN: 77-590-080520-002) / HMI

1684444-501 / DUAL CHANNEL TEMPERATURE CONTROLLER BOARD PCB / DELTA DESIGN

0140-76645 / H/A AC POWER ,CH.E  CH.F  CH.5 DEGAS CO / APPLIED MATERIALS AMAT

G2R-217P(1 ) / RELAIS, 24V, DC, OMRON / OMRON

MR-J2S-70B / MITSUBISHI AC SERVO DRIVER, MOTOR / MITSUBISHI

BLG-023644 / HTD (6541) PCB / ADVANTEST

15-00702-00 / PLATE, FORK RETAINER, TOP, 200MM / NOVELLUS

220C PU / INCREMENTAL SHAFT ENCODER, 5 VDC, 842806 / ACCUCODER

C306DN3 / OVERLOAD RELAY, BIMETAL AMBIENT COMPENSATED / CUTLER HAMMER

PC3405DD-001-E / XY STG. LINEAR MTR, INPT. 18-74VDC, OT 0-74VDC / PACIFIC SCI.

CT2910-318750-11 / POLY SOLVENT BLOCK 8INCH BATH / TOKYO ELECTRON TEL

0150-20023 / CABLE ASSY, CRYO TEMP INTERCONNECT, 25' / APPLIED MATERIALS AMAT

D3080 / PACK DRIVER STEPPING MOTOR DRIVER / ASAHI ENGINEERING

5065-0480 / PCB BOARD WITH MOT / HP (HEWLETT-PACKARD)

102236 / NC 316L PNEUMATIC SOLENOID VALVE 0.34-0.69MPA / FUJIKIN

SY3120-5GS-M5 () / PNEUMATIC VALVE BAL01 BAL10B BAL20 BAL30B / SMC

99-002-004 / PCB MOTHERBOARD 415 / TEGAL

UFC-1200A / 200SCCM MFC GAS HE / IT

7167950 / LINER VG PUMP HOUSING / AXCELIS TECHNOLOGIES

JZ91Z-11 / PCB INTERFACE ADD-ON BOARD / MEIDEN

C41215000 / PV16PKS B VALVE, RIGHT ANGLE 7BARG 24V 1.25A / EDWARDS

950-570-13 / DCS TG 100 MHZ / TERADYNE

298693-001 / PCB BOARD WITH MOT / ELSA

M393B5170EH1-CH9 () / ECC DIMM MEMORY 4GB EACH PC3-10600 / SAMSG

99-47222-01 / MOTOR-ASSY RANDOM ARM GM8714F638 / SVG

BGR-024443 / SUBCLK GEN PCB / ADVANTEST

FM-S14 /PCB FM-S14 QUAD SFP NEG SFP PLUS TRANSCEIVER FMC/ FASTER TECHNOLOGY, LLC

PS11-MC200-N / AMBIENT INLINE PURIFIERS, PURE GAS / MICRO TORR

GM8712F657 / MOTOR, 19.5 TO 1 RATIO, 512 CPR, 24VDC / PITTMAN

00049655-00 / REGULATOR TEMPERATURE PT100 TB-1 24V / SCP SERVICES

CV-110 / VPS CONTROLLER DNS SK200 (KEYENCE SO-5299) / DNS DAI NIPPON SCREEN

XC-77 / CCD VIDEO CAMERA / SONY

 XC-77 / CCD VIDEO CAMERA / SONY

2017743 / ENCODER, ROTARY (HENGSTLER) / HENGSTLER

3161352 / VIDEO DISPLAY PROCESSOR / KOKUSAI SEMICONDUCTOR EQUIPMENT

SS-BN8FR8-2C / VALVE - BELLOWS  -VCR FITTING - STS 237409 / SWAGELOK

001057-00 SOLENOID ASSY / PCB SOLENOID DIODE, SOLENOID ASSY / GRYPHON

XC 60-350 / VACUUM CAPACITOR 12KV / COMET GROUP

PCL245-NB-D24 / SOLENOID VALVE, PCL245-NB-D24 / PARKER

750-337 ASSY / AJET, CAN OPEN BUS COUPLER, 750-337 / WAGO

PA0006 / NOLOE FILTER / TOKYO SEIMITSU

0090-09006 / WIRING SECONDARY SLIT VALVE ACTUATOR / APPLIED MATERIALS AMAT

SQ420E1002PFS8FF / SQ420 LOW PRESSURE REGULATOR MAX INLET 250 PSI / PARKER

0020-04160 / SPACER CIRCULAR EXT CATHODE / APPLIED MATERIALS AMAT

9700-7006-01 () / MOTOR MINIMOTOR 16-5 262:1 K1096 / FAULHABER

99-287-003 / SHUTTLE INTERFACE BOARD SST-3 / TEGAL

PX535MH-A / 5-PHASE MOTOR DC 0.75A 3.5 OHM 0.36 DEGREE / VEXTA

GM8714G835 / DC MOTOR (300-014) 24VDC 8000 SERIES / PITTMAN

OEM-6-14392 / PCB DRIVER AMP OEM-6 RF GENERATOR / ENI

E17055950 / BLANKOFF - DUMP / VARIAN

0050-27752 / WELDMENT UPPER, NF3, RPSII, 300MM PRODUC / APPLIED MATERIALS AMAT

VCS3826I / PCB BOARD / JATON CORPORATION

714-045709-002 /BLK, FLOW, SIM CANTLVR, 2300 / LAM RESEARCH CORP

44A-LOO-GDCD-1HL9 (LOT OF 8) / SOLENOID VALVE / MAC

89CT90 / PCB-ARCNET CARD / BOC EDWARDS

046124 / ION PAC A514 ANALYTICAL COLUMN / DIONEX CORPORATION

BLK-024425 / MD BACKBOARD / ADVANTEST

2172582/ MODEL 7617 COMMICATIONS INTERFACE MODULE / BRUCE INDUSTRIAL CONTROLS

220690018 / AIR CYL CDQ2B50-75DC / APPLIED MATERIALS AMAT

LP522-01 / POWER SUPPLY / KNIEL

0190-51546, 0190-23965 /HOT ION-PIRANI GAUGE WITH SENSOR/ APPLIED MATERIALS AMAT

810-017008-003 / PCB, TEMP SENSOR / LAM RESEARCH CORPORATION

LCD-060 / LCD SCREEN, 2X40 DISPLAY RAPITRAN II, LCD-060 / FAITH ENTERPRISES

Z03CAA002 / BOARD ANALOG SETPOINT SPTHRM1 / ZMISC

KX00075 / Y SENSOR NUM. 4 / PRI

DS012-004333-1 / VALVE,AIR FPR-71-9.52-2-PA-BR (KU150099 / TOKYO ELECTRON

0150-21342 / CHAMBER 4 INTERCONNECT EMC COMPLIANTY () / APPLIED MATERIALS

908210-001 / 908211-001, CIRCUIT BOARD / TYLAN

BM24312L01 / 18V BATTERY BACKUP MLRV (DS N9602617) / VARIAN

618-090510-002 / UONSOLE BOARD 590-090510-002 / HERMES MICROVISION INC HMI

CMX1M1110 / MANOMETER 100MTORR 0.1TORR MODEL CMX45 BARATRON

E15000510 / PCB ASSY 30KV DEFLECTION DRIVE STAGE / VARIAN

CV-C1 / CCD CAMERA 16MM 1 -1.6 LENS SK200 (KEYENCE) / DNS DAI NIPPON SCREEN

EAUM-985800 / SWITCH, PPWC (SEEKA-TAKENAKA DL-S5R) / SEEKA

713-012659-006 / RTNR, FACE SEAL GAS INJCTR / LAM RESEARCH

70019772 / SNSR PWR ITC PCB / BROOKS EQUIPE PRI SENSOR POWER ITC PCP

12EB120 / POWER SUPPLY / ACOPIAN

130-04680-00-A00 / PCB BOARD WITH MOT / LUCENT TECHNOLOGIES

2071406 / PCB BOARD SCSI 39320A / ADAPTEC

0010-91012 / CUSP MAGNET ASSY (SIDE1) / APPLIED MATERIALS AMAT

S-909764 / SWITCHING SEL, S-909764, LAMBDA / LAMBDA ELECTRONICS

DS3810-330709-11 / 627911884 HUB, BTM INCONEL 600 DIFFUSION / TOKYO ELECTRON TEL

HA010E1 / VALVE PLS PLS 24VDC EV / HUMPHREY

1  HA010E1 / VALVE PLS PLS 24VDC EV / HUMPHREY

7.01.080 / DIGITAL I-O BOARD / TEMPRESS - GENERAL SIGNAL

9236S009-R1 / MOTOR, ENCODER, 24VDC, 500PPR / AMETEK PITTMAN, INC

9234S007-R1 / MOTOR, ENCODER, 24VDC, 500CPR / AMETEK PITTMAN, INC

0200-35957 / WINDOW 2.75 DIA SAPPHIRE DPS CHAMBER / APPLIED MATERIALS AMAT

16756-503 / BRD ASSY NON-INTRPT TIMER 302 / SEMITOOL

15D782052L4/MOTORIZED DIAPHRAGM VALVE 613 PTFE J475HP PS6.0BAR 230V 50/60HZ/GEMU

0190-00405 / DRIVE, HARD DISK, 4.5 GB, 3.5" SCSI, SEAGATE ST34520N / AMAT