福建中立恒自动化设备有限公司
目前,世界上有200多个厂家生产可编程序控制器产品,厂家有德国的西门子,美国的Rockwell(AB)、通用(GE),日本的三菱、欧姆龙,法国的施耐德等。
可编程序控制器总的发展趋势是向高集成度、小体积、大容量、高速度、易使用、高性能方向发展。具体表现在以下几个方面:
(1)向小型化、专用化、低成本方向发展
20世纪80年代初,小型PLC在价格上还高于小系统用的继电器控制装置。随着微电子技术的发展,新型器件大幅度的提高功能和降低价格,使PLC结构更为紧凑,功能不断增加,将原来大、中型PLC才有的功能移植到小型PLC上,如模拟量处理、数据通讯和复杂的功能指令等,但价格不断下降,真正成为继电器控制系统的替代产品。
(2)向大容量,高速度方向发展
大型PLC采用多微处理器系统,有的采用32位微处理器,可同时进行多任务操作,处理速度提高,特别是增强了过程控制和数据处理的功能。另外,存储容量大大增加。
(3)与计算机联系密切
从功能上看,PLC不仅能完成逻辑运算,且计算机的复杂运算功能在PLC中也进一步得到利用,从结构上看,计算机的硬件和技术越来越多地应用到PLC;从语言上看,PLC己不再是单纯用梯形图语言,而且可用多种语言编程,如类似计算机汇编语言的语句表,甚至可直接由计算机语言编程;在通讯方面,PLC与计算机可直接相连并进行信息传递。
(4)发展多样化
可编程序控制器发展的多样化体现在3个方面:产品类型、编程语言和应用领域。
(5)模块化
PLC的扩展模块发展迅速。功能明确化、专用化的复杂功能由专门模块来完成。主机仅仅通过通讯设备向模块发布命令和测试状态,这使得PLC的系统功能进一步增强,控制系统设计进一步简化。
(6)网络与通讯能力增强
计算机与PLC之间以及各个PLC之间的联网和通讯的能力不断增强,使用工业网络可以有效地节省资源、降低成本、提高系统可靠性和灵活性,致使网络的应用有普遍化的趋势。
(7)多样化与标准化
生产PLC产品的各厂家都在大力度地开发自己的新产品,以求占据市场的更大份额。因此产品向多样化方向发展,出现了欧、美、日多种流派。与此同时,为了推动技术标准化的进程。一些国际性组织,如国际电工委员会(IEC)不断为PLC的发展制定一些新的标准,如对各种类型的产品作一定的归纳或定义,或对PLC未来的发展制定一种方向或框架。
(8)工业软件发展迅速
与可编程序控制器硬件技术的发展相适应,工业软件的发展非常迅速,它使系统应用更加简单易行,大大方便了PLC系统的开发人员和操作使用人员。
可编程序控制器的输出信号类型可以是开关量、模拟量和数字量。输出单元从广义上分包含两部分:一是与被控设备相连接的接口电路,另一部分是输出的映像寄存器。
PLC运行时CPU从输入映像寄存器读取输入信息并进行处理,将处理结果放到输出映像寄存器。输出映像寄存器由输出点相对应的触发器组成,输出接口电路将其由弱电控制信号转换成现场需要的强电信号输出,以驱动电磁阀、接触器、指示灯等被控设备的执行元件。
PS11-MC200-N / AMBIENT INLINE PURIFIERS, PURE GAS / MICRO TORR
C41215000 / PV16PKS B VALVE, RIGHT ANGLE 7BARG 24V 1.25A / EDWARDS
298693-001 / PCB BOARD WITH MOT / ELSA
M393B5170EH1-CH9 / ECC DIMM MEMORY 4GB EACH PC3-10600 / SAMSG
GM8712F657 / MOTOR, 19.5 TO 1 RATIO, 512 CPR, 24VDC / PITTMAN
0020-04160 / SPACER CIRCULAR EXT CATHODE / APPLIED MATERIALS AMAT
SQ420E1002PFS8FF / SQ420 LOW PRESSURE REGULATOR MAX INLET 250 PSI / PARKER
0090-09006 / WIRING SECONDARY SLIT VALVE ACTUATOR / APPLIED MATERIALS AMAT
XC-77 / CCD VIDEO CAMERA / SONY
XC-77 / CCD VIDEO CAMERA / SONY
2017743 / ENCODER, ROTARY / HENGSTLER
99-287-003 / SHUTTLE INTERFACE BOARD SST-3 / TEGAL
CV-110 / VPS CONTROLLER DNS SK200 / DNS DAI NIPPON SCREEN
PX535MH-A / 5-PHASE MOTOR DC 0.75A 3.5 OHM 0.36 DEGREE / VEXTA
GM8714G835 / DC MOTOR 24VDC 8000 SERIES / PITTMAN
9700-7006-01 / MOTOR MINIMOTOR 16-5 262:1 K1096 / FAULHABER
00049655-00 / REGULATOR TEMPERATURE PT100 TB-1 24V / SCP SERVICES
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
SS-BN8FR8-2C / VALVE - BELLOWS -VCR FITTING - STS 237409 / SWAGELOK
OEM-6-14392 / PCB DRIVER AMP OEM-6 RF GENERATOR / ENI
89CT90 / PCB-ARCNET CARD / BOC EDWARDS
046124 / ION PAC A514 ANALYTICAL COLUMN / DIONEX CORPORATION
E17055950 / BLANKOFF - DUMP / VARIAN
3161352 / VIDEO DISPLAY PROCESSOR / KOKUSAI SEMICONDUCTOR EQUIPMENT
0050-27752 / WELDMENT UPPER, NF3, RPSII, 300MM PRODUC / APPLIED MATERIALS AMAT
BLK-024425 / MD BACKBOARD / ADVANTEST
DS012-004333-1 / VALVE,AIR FPR-71-9.52-2-PA-BR (KU150099 / TOKYO ELECTRON
2172582/ MODEL 7617 COMMICATIONS INTERFACE MODULE / BRUCE INDUSTRIAL CONTROLS
908210-001 / 908211-001, CIRCUIT BOARD / TYLAN
810-017008-003 / PCB, TEMP SENSOR / LAM RESEARCH CORPORATION
VCS3826I / PCB BOARD / JATON CORPORATION
714-045709-002 /BLK, FLOW, SIM CANTLVR, 2300 / LAM RESEARCH CORP
44A-LOO-GDCD-1HL9 / SOLENOID VALVE / MAC
BM24312L01 / 18V BATTERY BACKUP MLRV / VARIAN
618-090510-002 / UONSOLE BOARD 590-090510-002 / HERMES MICROVISION INC HMI
CMX1M1110 / MANOMETER 100MTORR 0.1TORR MODEL CMX45 BARATRON
220690018 / AIR CYL CDQ2B50-75DC / APPLIED MATERIALS AMAT
E15000510 / PCB ASSY 30KV DEFLECTION DRIVE STAGE / VARIAN
0190-51546, 0190-23965 /HOT ION-PIRANI GAUGE WITH SENSOR/ APPLIED MATERIALS AMAT
70019772 / SNSR PWR ITC PCB / BROOKS EQUIPE PRI SENSOR POWER ITC PCP
0150-21342 / CHAMBER 4 INTERCONNECT EMC COMPLIANTY / APPLIED MATERIALS
713-012659-006 / RTNR, FACE SEAL GAS INJCTR / LAM RESEARCH
Z03CAA002 / BOARD ANALOG SETPOINT SPTHRM1 / ZMISC
LCD-060 / LCD SCREEN, 2X40 DISPLAY RAPITRAN II, LCD-060 / FAITH ENTERPRISES
KX00075 / Y SENSOR NUM. 4 / PRI
LP522-01 / POWER SUPPLY / KNIEL
0010-91012 / CUSP MAGNET ASSY / APPLIED MATERIALS AMAT
DS3810-330709-11 / 627911884 HUB, BTM INCONEL 600 DIFFUSION / TOKYO ELECTRON TEL
CV-C1 / CCD CAMERA 16MM 1 -1.6 LENS SK200 / DNS DAI NIPPON SCREEN
EAUM-985800 / SWITCH, PPWC / SEEKA
9236S009-R1 / MOTOR, ENCODER, 24VDC, 500PPR / AMETEK PITTMAN, INC
S-909764 / SWITCHING SEL, S-909764, LAMBDA / LAMBDA ELECTRONICS
9234S007-R1 / MOTOR, ENCODER, 24VDC, 500CPR / AMETEK PITTMAN, INC
7.01.080 / DIGITAL I-O BOARD / TEMPRESS - GENERAL SIGNAL
0200-35957 / WINDOW 2.75 DIA SAPPHIRE DPS CHAMBER / APPLIED MATERIALS AMAT
12EB120 / POWER SUPPLY / ACOPIAN
130-04680-00-A00 / PCB BOARD WITH MOT / LUCENT TECHNOLOGIES
2071406 / PCB BOARD SCSI 39320A / ADAPTEC
0190-00405 / DRIVE, HARD DISK, 4.5 GB, 3.5" SCSI, SEAGATE ST34520N / AMAT
16756-503 / BRD ASSY NON-INTRPT TIMER 302 / SEMITOOL
HA010E1 / VALVE PLS PLS 24VDC EV / HUMPHREY
HA010E1 / VALVE PLS PLS 24VDC EV / HUMPHREY
6L-FV4-VR4-7132/ SWITCH EXCESS FLOW SENSOR M- M7132 K43422/ SWAGELOK
15D782052L4/MOTORIZED DIAPHRAGM VALVE 613 PTFE J475HP PS6.0BAR 230V 50/60HZ/GEMU
0140-20062 / HARNESS ASSY, DC POWER CH. CA12 SYSTEM / APPLIED MATERIALS AMAT
095291 / BOARD / FUSION SYSTEMS CORPORATION
PX655-10DI / DIFFERENTIAL PRESSURE TRANSMITTER, SUP. 12-36VDC / OMEGA ENG. INC
MGPL25-30Z / COMPACT GUIDE CYLINDER MGP SERIES, MAX 1.0MPA / SMC
15-391861-09(LOT OF 8) / PIN,MCA,SAPH,3-16DIA,0.8101IN,1 FLAT END / LAM RESEARCH
0020-09996 / SHIM RING, 4, OXIDE / APPLIED MATERIALS AMAT
SZ3360-5NL0Z-C6 / SZ3360-5NL0Z-C4 / PNEUMATIC AIR CYLINDER / SMC
BGH-018825 / T5365P TEST HEAD BOARD / ADVANTEST
BGH-019207 / T5365P TEST HEAD BOARD / ADVANTEST
BGL-18831 / T5365P TEST HEAD BOARD / ADVANTEST
ASD12A-C / VEXTA STOCKER Z Y-AXIS CONTROLLER CS040-002422-1 / VEXTA
116074-A / VALVE CONTROOLER BOARD, VT A-94V0 9938 /MIRAPRO
TRY100251115M2 / JOYSTICK CONTROLLER / MEGATRON
L6591-314 / VALVE,AIR / VARIAN
0100-09022 / MINI AI/AO BD P5000 / APPLIED MATERIALS AMAT
BG9-3769 / CANON I3 BH8-0766-01 PZ DRIVE PCB / CANON
044-1177() / CABLE, FLEX, DISPLAY 703-1233-01 CTS 2604/BROOKS AUTOMATION
AK-BX511DIT6 / PACK DRIVER STEPPING MOTOR DRIVER DISCO / ASAHI ENGINEERING
BM23100L02 / SERVO MICRO PROCESSOR PCB / PRI
0190-26328 / HOT ION, PIRANI GAUGE / APPLIED MATERIALS AMAT
713-045638-001 / FXTR,INDUCTOR,L3 / LAM RESEARCH CORPORATION
MQDA043D1A / AC SERVO DRIVE / PANASONIC
D37215000 / HIGH VACUUM NETWORK INTERFACE MODULE / BOC EDWARDS
81710-04225-010 / PCB PNEUMATIC CONTROL ASSY 130422550 REV D / OERLIKON
84865 / ACCELERO-METER / ELECTRO SCIENTIFIC INDUSTRIES
BM18275 / COMM. KEY PLUG ASSY / BROOKS AUTOMATION
632720140-00 / FCTION BD DIGITAL I-O / ASM AMERICA INC.
W3000-10-F1Y / FILTER HIGH PRESSURE AIR / CKD CORPORATION
MUMS012A1A0S / AC SERVO MOTOR WITH GEARHEAD / PANASONIC
0150-70148 / CABLE; BLACK W/ROD PLUG / APPLIED MATERIALS AMAT
0620-01517 / CABLE ASSY STATOR INTERFACE 20 FT / APPLIED MATERIALS AMAT
SPS-001 / TOSHIBA POWER SUPPLY, MODEL: ASTEION / COSEL
FC-2902MEP-T / MFC 5000 SCCM, GAS N2 / MILLIPORE
21-0025 / PNEUMATIC CYLINDER RAM 4IN BORE 7IN STROKE / TRD MANUFACTURING
110338 / MAXON RE-MAX MOTOR, 267360, M90500 0A2.02 / MAXON
TW908 / PCB BOARD / TERADYNE
CWHF01XST / FILTER, MICROGUARD HT C UPM 5NM 10 INCH C-0 E-FKM / ENTEGRIS
UG10-000951-11 / PLATE MOT GATE APERTURE / TEL EPION
101413-RT / CARD - D TO A 8 CHANNEL / UTI INVENTORY MANAGEMENT SOLUTIONS
2348098-00 / LAM ASSY PORTESCAP MOTOR DC 23GST2R82 ENC ME22 LINEDRV / LAM
AHA-1542CF / PCB BOARD CSI ISA / ADAPTEC
3700-03759 /O-RING ID 18.955 CSD .210 KALREZ 8085 KALREZ/ APPLIED MATERIALS AMAT
5866RC1A1C4R2VA / FS FLOW RATE, 3 SLPM, 5866RT SERIES / BROOKS INSTRUMENTS
FC-280S / MASS FLOW CONTROLLER MFC N2 500 SCCM / MYKROLIS
HCC15-3-A / CONVERTER OUTPUT -12 VCD AT 3.4AMP OR -15VCD AT 3AMPS / POWER ONE
0140-75265 / GND H/A, UPPER SUB-PANEL PHASE II CONTRO / APPLIED MATERIALS AMAT
GEPI-001 / CNCT. PCN1 PCN2 NFB1 PCN3 NFB2 PCN4 NFB3 PCN5 / DNS DAI NIPPON
HA400 / TEMP. FC1/A CONTROLLER, 100 TO 240VAC, 12 VA/17VA / TORAY
HB-10101AF / SUPER HIGH PRESSURE MERCURY LAMP POWER SUPPLY / NIKON
HB-10101AF / SUPER HIGH PRESSURE MERCURY LAMP POWER SUPPLY / NIKON
7-39-05583 / SENSOR TR SEND LT-110A25V-SV / DNS DAI NIPPON SCREEN
MSDA013A1A / PANASONIC AC SERVO DRIVER / PANASONIC
MSDA013A1A / PANASONIC AC SERVO DRIVER / PANASONIC
102944-010 / PCB, A2, MOTION CONTROL CXE / ELECTROGLAS
0242-49569 / KIT, H2O CHAMBER CONNECTIONS NO TURBO SICONI / APPLIED MATERIALS
MPS-D4M5-GHA-D4 / VACUUM SENSOR SK2000 COAT DEVEL. AL16-A 3-PIN / CONVUM MYOTOHU
0240-23718 / KIT PUMP CB-20 AMP / APPLIED MATERIALS AMAT
03-042622-01 / CABLE ASSY,PWR,TRBO,BLZ,LT,SPD / NOVELLUS
0021-39883 / OUTPUT MANIFOLD, TXZ CIP / APPLIED MATERIALS AMAT
379123-001 / SWITCHING POWER SUPPLY / HP
4178-6VU / LAPTOP / LENOVO
ST260 / KURODA VALVE,SOLENOID,DOUBLE,3 WAY,24VDC,2POS,SEMIX ST-260 / SEMIX
PH3/N2, 0.03 SLM / COASTAL IN
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