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。
545-5512 / PCB, PANEL/IF / HITACHI
853-077067-001 / CABLE ASSY. FOR RF GENERATOR / LAM RESEARCH CORPORATION
130699 / CONTROLLER, HI/LO LIMIT / WATLOW
8912-910 / GRAPHICS CARD AGP 4X, 64MB DVI/VGA
PK543-A-C8 / VEXTA STEPPING MOTOR, 5-PHASE, DC 0.75A, 1.7OHM / ORIENTAL MOTOR
545-5518 / PCB, PARA-I/F / HITACHI
0020-20114 / ISOLATOR DC BIAS / APPLIED MATERIALS AMAT
ETP-A-25-S / GUARD LOCK SAFETY DOOR SWITCH / MIKI PULLEY
0040-77440 / SUPPORT, R.H. COVER / APPLIED MATERIALS AMAT
SEM4BD-001 / SEMITOOL14843E CPU BOARD / SEMITOOL
710-401536-00 / PCB ENCODER INTERFACE BOARD KLA 5200 / KLA TENCOR
FAK24-4R2 / POWER SUPPLY 100-120V AC INPUT 24V DC OUT /TDK
HWS150-24-A / TDK-LAMBDA POWER SUPPLY 100-240VAC 2.0A 24V 6.5A / LAMBDA
EX250-SDN1-X102 / SERIAL INTERFACE IT,32 SOLENOID CONTROL / SMC
HWS300-12 / AC/DC POWER SUPPLY 12V-27A INPUT 100-240VAC OUTPUT 12V / TDK-LAMBDA
TAS-LED / CIRCUIT BOARD / TDK
011039050 / LDT POSITION SENSING SYSTEM ELECTRONIC / MTS
CG1BA32-240 / SMC CYLINDER, CG1BA32-240 / SMC
CHAAA00000510 / SENSOR-LEVEL FL-7161-2 FI / SES CO, LTD (DBA SES INTERNAT
SM2320SQ / SMART MOTOR, SM2320SQ, 4.15C / ANIMATICS
0100-02075 / OVERRIDE PCB SA-BF3 / APPLIED MATERIALS AMAT
DM83H-1 / VORTEX86DX-SX, ISA HALF SIZE / V-AUTOMATION, INC
ZWS240PAF-24/TA HFP / PWR SPLY INPUT100-240VAC ~3.5A 50/60HZ OUTPU 24V 10A / TDK
0040-77438 / SUPPORT, L.H. COVER, PLATEN BELT ENDPOIN / APPLIED MATERIALS AMAT
BH8-0109-02 / FARMON ID 412500 BOARD / CANON
0010-01004 / LINE GAS FEED ASSY / APPLIED MATERIALS AMAT
PI0-IN / CABLE 34P FEMALE, FOR L6299-12 EXTERNAL CONTROL SIGNAL, PIO-IN / DNS
02-257556-00 / ASSY EBR DISP ARM MOLD XT MKB16-10RZ / SMC
SYJ3333-5LOZ / SOLENOID VALVE 4 PORT 3 POSN LAM / SMC
2081325-05 / PARTICLE COTER, 1CFM, R4815 / MET ONE
2-F2-D0791 2-F2-D0899 / TABLE FOR CASSETTE STAGE ON SK200 IFB / DNS SCREEN
0150-76496 / EMC COMP, CBL ASSY TURBO CNTRLR INTERCON / APPLIED MATERIALS AMAT
45-0006 / PCB, OPERATOR INTERFACE / TOSOH QUARTZ, INC
SGDH-04AE / AC SERVO DRIVER SERVOPACK / YASKAWA ELECTRIC
SGDH-04AE / AC SERVO DRIVER SERVOPACK / YASKAWA ELECTRIC
35-A812246798781 / HR MIRROR CWQ 205 / ASM AMERICA INC
01-30784-804 / VME BOARD WORKCELL TO COMPUTER MODULE / TEXAS INSTRUMENTS, INC
0050-61737-002 / WELDMENT ASSEMBLY / APPLIED MATERIALS AMAT
0020-78956 / SUPPORT PAD, MEMBRANE / APPLIED MATERIALS AMAT
294140-400 / PCB ASSY, BATTERY MONITOR,294410-200A,BATTERY CHECK / FSI
713-065829-001 / COV, SCRW, SRC LNR / LAM RESEARCH CORPORATION
ADC-12A / CIRCUIT BOARD GESADC-12A 9310 GESPCB-334 CIRELEC A 94VO 9628 / GESPAC
5020303 / FILTER, ULPA, 6 X 6 X 3, W/GSKT / PRI
1505600 / PCB ELECTRON SHOWER COMM ADAPTER / AXCELIS TECHNOLOGIES
2S700-385- / PCB WITH KEYPAD 2S070-032-1 FOR OPTISTATION 3 / NIKON
R2E220-AA44-23 / FAN IMP MTRZD 220X71MM 115VAC / EBMPAPST
0021-77186 / SPACER / APPLIED MATERIALS AMAT
772-090397-001 / REGULATOR COMPACTS 1 / LAM RESEARCH
0150-76390 / CABLE ASSY,GAS PANEL INTERCONNECT / APPLIED MATERIALS AMAT
MSM042AAA / AC SERVO MOTOR MATSUSHITA / PANASONIC
740-A16 / FREQ 47-63HZ, RELAY .5A,4.0VA 1-4A / THORNTON
17219790 / APERTURE FARADAY RESOLVER / AXCELIS TECHNOLOGIES
1106768-202 / VALVE,PNEUMATIC 3WAY VALVE,SMDV-F12M-L / FURON
XC-75CE / CAMERA - CCD BLACK-WHITE VIDEO CAMERA MODULE DC10.5-15V / SONY
36-0151 / COMPUTER CABLE INTERFACE BOARD / PROMETRIX
275905-EU / SERIES 275 MINI-CONVECTRON PRESSURE GAUGE / GRANVILLE-PHILLIPS
275905-EU / SERIES 275 MINI-CONVECTRON PRESSURE GAUGE / GRANVILLE-PHILLIPS
ST32272N / HP HARDDRIVE / SEAGATE
853-015767-001 / SWITCH,FLOW,N2 / LAM RESEARCH CORPORATION
6888001 / VARIAN ASSEMBLY MOTOR DRIVE CONTROL, HURST 6RPM PA 3202-014 / VARIAN
2957765 / MONITOR OSITION BTU 41 RH / BRUCE TECHNOLOGIES
15343461 / EH, TURBI SENSOR CUS 1 / SIEMENS
0020-96262 / PLATE SHIELD MOTING / APPLIED MATERIALS AMAT
BM25060L01 /PCB,SCARA INTERCONNECT /BROOKS AUTOMATION
XLA-40J-M9PLA / HIGH VACUUM VALVE, 10-6PA~ATM 0.4~0.7MPA / SMC
182894 / RF-2500 ROTOR FLOW / GEMS SENSORS CONTROLS
D37245000 / ELECTRICAL SUPPLY CONTINUITY MODULE / BOC EDWARDS
0020-09029 / 5200 EXTENDED CATHODE / APPLIED MATERIALS AMAT
SC2FNNP-12 / SAFETY SNAP CAP - COM / ACC GAS
12A8E-INV / BRUSH TYPE PWM SERVO AMPLIFIER / ADVANCED MOTION CONTROLS 12A8E-INV
102461-000 / DAUGHTER CARD / MICRO CONTROL COMPANY
AC0201FR-0733R / THICK FILM RESISTORS SMD AEC-Q200(1 REEL=10,000
0200-18092 / NOZZLE, ALL CERAMIC 3.05L, HDPCVD / APPLIED MATERIALS AMAT
R4E250-AB25-23 / RADIAL BLOWER 115V 60HZ 0.65A 72W / EBM
MQMLB20H-30D / MQM-MQP-MQQ LOW FRICTION CYLINDER. / SMC
CT5015-000012-11/SENSOR,PRESSURE 225A-24596/MKS TOKYO ELECTRON TEL
REX-F9010 / RKC TEMPERATURE CONTROLLER / RKC INSTRUMENT INC
E 137632 / POWER SUPPLY,SDN 20-24-100,115-230VAC,50-60HZ,24V-20A,959443 / SOLA
3104371051 / UPPER 6" CUP / VARIAN
857-081489-702 / KIT,HTD LINES,GB,MAR JTS / LAM RESEARCH CORPORATION
81499 / CKA, POWER WINDOW DRIVER BOARD / ELECTRO SCIENTIFIC INDUSTRIES
WBL-PS5V150A / POWER SUPPLY 5V / ADVANTEST
DS1110-309640-11 / VANITY COVER FOR LINER SUPPORT RING / TOKYO ELECTRON TEL
HUL300-14 / XP POWER, 24V 12A, ENCL FAN, HMNC / XP POWER XPIQ INC.
03-138114-00 / ASSY,RF FILTER ,ILDS,RETRO / NOVELLUS
C-1500482 / PCB ANALYZER SOURCE MAGNET SUPPLY AXCELIS / NOVA
MIP-380 /POLY STRAP TENSIONER 1/2" - 3/4" STRAP WIDTH / MID-WEST INSTRUMENTS
PGAOR20-030-01 / FILTER,POLYFLOW G 3.0UM / PARKER
0100-A1201 / PCBA LAB-200/600 ASSY BOARD / APPLIED MATERIALS AMAT
3140331B / PCB,ALARM,PROCESSOR,BTU 3140331B,3130241 / ZMISC
1610B0007 / SUCTION SLEEVE FOR TREBOR 610 610-AA / TREBOR
5064-2610 / PCB BOARD WITH MOT / MATROX
Z41411011501S / PCB BOARD / FOXLINK
SPACSCO-16 / POWER SUPPLY 100-240V / POWER ONE
VT-MODEM-5WW / ADVANCED 56K V.92 AND V.90 PHMODEM / SIXNET
ST-519 / CIRCUIT BOARD 12257 / DATEL
52-0237 / 3222B264-R2 MOTOR ENCODER, 30.5 MV/R/S PITTMAN / KLA TENCOR
90153171 / QUARTZ GAS COOLER 214 VERTRON 7410399 / HERAEUS QUARTZTECH, INC
7410399 / GAS COOLER REV A/214 VERTRON 10009204 / WONIK QUARTZ INTERNATIONAL
1380-100356-11 / ROTARY SOLENOID FOR SHUTR / TOKYO ELECTRON TEL
GLFPF6101SM6S / FILTER CTG 003U DSPSBL SS / PALL
242777-001 / PCB BOARD MODEL X079 / COMPAQ
PCI-BIB-NC-PHM / PCI BUS INTERFACE BOARD WITH SNP-DIG16-PHM / ACTIVE SILICON COM
S202-D10 / CIRCUIT BREAKER, 2-POLE, D CURVE, 10A, 6KA, 480Y 277VAC, HANDLE, /ABB
222CA-00010AA / BARATRON PRESSURE TRANSDUCER 10 TORR -15VDC 0-10VDC / MKS
SRW-65-4006/MODEL WSR65UM46-C POWER SUPPLY 100-240V 65 WATTS/INTEGRATED POWER
4177-RVU / LAPTOP / LENOVO
26-0200-186 /QUARTERLY PM SYNERGY KIT, ZWMR0015, BRUSH/LOAD/SPIN/INPUT/ ONTRAK
AF5CQ000 / PNEUMATIC, TYPE N.C., AF5CQ000 / FUJIKIN
4005184 / RICHMOND PFC PULSEFLOW CONTROLLER / SIMCO
040M5A / MANIFOLD WITH 4 A040-4E2-34W AIR VALVES ATTACHED /KOGANEI
EAUA-334700 / CONVERTER BOARD / DISCO
13288 / MINI MOTOR, 3557K024CS, HEDL5540A14, PL32S4:1 / ELRA
UG10-000839-11 / INSERT 41MM DIA SIC / TEL EPION
UG10-000838-11 / INSERT 33-6MM DIA SIC / TEL EPION
54-0124 / PCA WITH CN-116 / PROMETRIX
0072864-001 / SHAFT / DEMATIC
70312541100 / AMAT PCB MOD SYSTEM CONT 1 B / APPLIED MATERIALS
HBLM210K-GN / VEXTA BRUSHLESS DC MOTOR 2000RPM 10W W/ 2GN18K GEAR HEAD / OM
003743 / CABLE INTANDEM P4 P5 FOR ROBOT 1-0125 / BROOKS AUTOMATION
DS012-000722-1 / FUJIKIN VALVE,AIR FPR-71-9.52-2-BR (KU15495-1 / TOKYO ELECTRON
HE15-9-A / INTERNATIONAL SERIES LINEAR POWER SUPPLY 15VDC 9 AMP / POWER ONE
04-716610-01 / UPPER COLLIMATOR SHIELD / NOVELLUS
SM312F / FIBEROPTIC WITH CONNECTOR / BANNER
S202-D4 / MINIATURE CIRCUIT BREAKER - 2P - D - 4 A, 2CDS252001R0041 / ABB
MOHLRA51 / COVER,WATERPROOF,IMPROVED / DISCO
0015-01744 / SWLL POPPET VALVE 0020-28668 / APPLIED MATERIALS AMAT
MMB50U-2 / POWER SUPPLY / COSEL
SK 3322 107 / FAN AND FILTER VENTILATOR 230V 50-60V 0,12-0.11A 19-18W / RITTAL
0050-33825 / WELDMENT,TEE EX,VLV-THROTTLE,TXZ MCVD / APPLIED MATERIALS AMAT
0025044-000 / MIRROR R M1 LASER / KLA TENCOR
26-8800-014 / KIT PM QRTLY BRUSH STATION / ONTRAK
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