福建中立恒自动化设备有限公司
一、摘要 PLC是一种专门在工业环境下应用而设计的数字运算操作的电子装置。
它采用可以编制程序的存储器,用来在其内部存储执行逻辑运算、顺序运算、计时、计数和算术运算等操作的指令,并能通过数字式或模拟式的输入和输出,控制各种类型的机械或生产过程。PLC及其有关的外围设备都应按照易于与工业控制系统形成一个整体,易于扩展其功能的原则而设计。在工业生产的各个领域,机械加工企业为了提高生产效率,采用机械化流水作业的方式,对不同类型的零件分别组成的自动生产线。随着产品机型的更新换代,生产线承担的加工对象也随之改变,这就需要改变控制程序,使生产线的机械设备按新的工艺过程运行,而继电接触器控制器系统是采用固定接线,很难适应这个要求。大型自动生产线的控制系统使用的继电器数量很多,随着PLC的应用日益普及,其使用方法简单,便于掌握,且可靠性,抗干扰性很强,自身具有完善的功能.模块化的结构,使其在工业生产线上的应用越来越广泛。
发展趋势:1.向高速度、大容量方向发展
为了提高PLC的处理能力,要求PLC具有的响应速度和更大的存储容量。目前,有的PLC的扫描速度可达0.1ms/k步左右。PLC的扫描速度已成为很重要的一个性能指标。
在存储容量方面,有的PLC可达几十兆字节。为了扩大存储容量,有的公司已使用了磁泡存储器或硬盘。
2.向超大型、超小型两个方向发展
当前中小型PLC比较多,为了适应市场的多种需要,今后PLC要向多品种方向发展,特别是向超大型和超小型两个方向发展。现已有I/O点数达14336点的超大型PLC,其使用32位微处理器,多CPU并行工作和大容量存储器,功能强。
以下链接皆有货
MIX LOT 11 CHALENGER PLUG ON CIRCUIT BREAKER 15AMP 20AMP 120/240V
BOSCH 8101304697 / FX38B 32 CHANNEL CIRCUIT BOARD MODULE ID: M23290
FESTO HEE-D-MIDI-24 172944 V343 SOLENOID ON/OFF VALVE MSEB-3-24VDC COIL 24VDC
TDK LAMBDA DLP100-24-1/C2EJ POWER SUPPLY DIN-RAIL MOT 24VDC 3.7A
SIEMENS 6ES7-131-4BB01-0AA0 SIMATIC PLC INPUTS 6ES71314BB010AA0
INDUSTRIAL MRO MRC7/04 RESISTOR 20 OHM 11IN LG
113SPRGAN5 EDWARDS SIGNALING 113SP-RGA-N5 TOWER STEADY 120V RED GRN AMB
AB 800H-1HZ4R ENCLOSURE 800H-AR BLACK STOP SER F PUSHBUTTON
3TF4 101-0A SIEMENS CONTACTOR W/ 3TX7402-3T SURGE SUPPRESOR
SMC AR60-N10-Z PRESSURE MODULAR REGULATOR NPT AR60N10Z 125PSI
FRU 02K0806 IBM KB-7953 VINTAGE COMPUTER PS2 KEYBOARD 02K0805
STRUTHERS DN 219ABAP RELAY 115/125VDC 10 AMP 120VAC FACTOR
FD-B 1500384K COSEL R15A-24-N POWER SUPPLY 24V0.7A AC100-120V W/COVER A
LOT 12 MIX AB 700-HN121, 700-HK36Z24, 700-HN154, CBB61, LY4N-D2, MY2N-D2, LY2
MEASUREX 05358300 REV B AC INPUT DETECTOR CIRCUIT BOARD 04358300
CP32D/15 FUJI ELECTRIC CIRCUIT PROTECTOR CP32D 15A 2 POLE 250VAC
2X 1492-SP1B020 ALLEN BRADLEY 1492SP1B020 MANIATURE CIRCUIT BREAKER
2X 1492-SP1C020 ALLEN BRADLEY 1492SP1C020 MANIATURE CIRCUIT BREAKER
5000-5B LINK ELECTRIC SAFETY 50005B PC BOARD
SCANNER BLOCK (SB) BANNER ED MULTI-BEAM ED PHOTOSENSOR
LOT 2 G3NA440B OMRON G3NA-440B SOLID STATE RELAY 5-24VDC 40AMP
NORGREN HERION 33D0863124 ELECTRONIC PRESSURE SWITCH 33D 0863124
COSMOS 14017 PHOTOELECTRIC PHOTOSWITCH CABLE SENSOR
LOT 9 BRASS MALE STRAIGHT CONNECTOR 1/4" MNPT X 1/4" OD TUBE FTG SAMDAY
SICK OPTIC VTE18-4N2240 PROX 200MM MTL NPN M12 PLUG L/D POT
NIB TELEMECANIQUE XS612B1MAU20 PROXIMITY SENSOR INDUCTIVE 12MM
SIEMENS 6ES5420-3BA11 INPUT MODULE 6ES54203BA11
CROUSE HINDS X27 CONDULET CONDUIT OULET BODY 3/4" FORM 7 -
2X SQUARE D CLASS 8030 TYPE CC-20 POWER SUPPLY CABLE 8030-CC-20
SMC CDQ2WB32-30D COMPACT CYL. CDQ2WB3230D 8310-00165 -
COLEMAN POWERMATE PMP200 200WATT POWER INVERTER INPUT 12VDC TO 200W SAME DAY
9 PC P-MP-1/4-E MALE PLUG APPLIED MATERIALS 3300-01513 PORT CONN
INDUSTRIAL MRO 011 REV C 03061 / 574003 PCB CIRCUIT BOARD ID: M23371
CENTENT CN0122 DUAL INPUT 4 QUADRANT BIDIRECTIONA LINEAR DC MOTOR
SMARTLINER ALL WEATHER CARGO MAT BEHIND 3RD BLACK 2017-2025 AUDI Q7
PANALARM 81-FP5-12D / 081-0031-3-01-B CIRCUIT BOARD ID:M23592
EVERTECH 16 CHANNEL CCTV POWER SUPPLY 100-240VAC / 12VDC 10A PTC FUSE NO KEY
EMERSON FISHER ROSEMOT 41B5215X122 REV N DISC I/O CARD
GE 1589K29G700 DUAL ALARM BOARD PCB CIRCUIT BOARD ID: M231015
ALLEN BRADLEY 1771-OAD 12-120VAC OUTPUT MODULE 1771OAD 17710AD
ALLEN BRADLEY 1771-OAD 12-120VAC OUTPUT MODULE 1771OAD 17710AD
LOT 8 SATO PA17330300 / PA17330301 / 730-0159-00 PLATE ADJUST
ROSEMOT 95006-0884 / 01151-0059-1 CALIBRATION BOARD ID:M231069
TEXAS INSTRUMENTS 500-5011 OUTPUT MODULE 5005011 110VAC 50/60HZ
LITTELFUSE LPSJ60-3ID POWR-SAFE CLASS J 60AMP 600VAC LPSJ603ID
EMERSON ALCO CONTROLS 057341 24VAC SOLENOID COIL AMG-JCTION
800MRQAL24S ALLEN BRADLEY 800MR-QAL24S GREEN PUSHBUTTON ILLUMINATED
800MRQA24S ALLEN BRADLEY 800MR-QA24S WHITE PUSHBUTTON SWITCH
LOT 4 APPLIED MATERIAL 3300-02589 FTG TBG CONN 3/8T X 1/2MNPT SST A
BLACKBERRY 9300 WORKS 3 BLACKBERRY FOR PARTS
IFM EFECTOR E18035 ECOMAT400 5 PIN 90 DEGREE FEMALE CABLE
- MEAN WELL MDR-60-24 POWER SUPPLY 100-240VAC 1.8A 50/60HZ FRE
SMC CDQ1B20-30DC CYLINDER COMPACT CDQ1B2030D -
3TF44220A SIEMENS 3TF4422-0A AIR BREAK MOTOR STARTER 42AMP 600V
CUTLER-HAMMER CG7BL CG7 BARREL LOCK KIT
LOT OF 8 LEVITON STRAIGHT BLADE CONNECTOR FEMALE PLUG 15A-250V
9T58B3000 GE TRANSFORMER TYPE IP .050KVA 120/240V 138A1050P1
ARO CHL6-024 CABLE FLUID POWER CHL6024 CONNECTOR 863743
2X MICROFLEX MSA-028-311 r6 3 HOLES MICROSEAL ASSY MSA028311
OMRON S82J-15024DD POWER SUPPLY AC100-120/200-240V OUT DC24V
NSK 5208TNC3 200 DOUBLE ROW (3200/5200) BALL BEARING
Q65C ITE AUXILIARY SWITCH TYPE L2 4 CONTACT ROTARY
2X NIB EATON CUTLER-HAMMER C320KA1 AUXILIARY CONTACT 2 600V
VANTAGE PXD-73042-G PLUG ASSEMBLY 4WIRE 3 POLE PXD73042G -
PYLE-NATIONAL PXD-73042-G PLUG ASSEMBLY 4 POLE PXD73042G -
SMC SY3120-5LZ-C4-F2 SY3000 SOL/VALVE, RUBBER SEAL 8382-06040 FRE
TELEMECANIQUE LC1D09 LE7 208V 50/60HZ CONTACTOR LR2 D1307 OVERLOAD RELAY
NIB LOT OF 7 K075-B MDC 712000 FLANGE BLANK NW16 (K075)
TURCK PKW4Z-P7X2-6/S90 SENSOR CABLE PKW4ZP7X26S90 ID U0083 154035 A
17955 BANNER IF253S OPPOSED MODE INDIVIDUAL GLASS FIBER 36IN LG
LOT OF 14 PARKER ¼” TUBE FITTING NICKEL BRASS ION TEE 164PLP-4
INDUSTRIAL MRO G0114BD-G / F8221H / 2M8348 / G0114BEE CIRCUIT BOARD ID: M23518
ION TRACK 170-010 / AI61004 / CD-B194V-0 PCB CIRCUIT BOARD ID:M23523
WESTINGHOUSE 7379A84G01 4QBE BUS EXTENDER CARD ID: M23531
AMETEK 80523K REV C 80523SE E, D4501011 CIRCUIT BOARD ID: M23593
140-MN-0630 ALLEN BRADLEY MANUAL MOTOR STARTER 3POLE 690VAC FRE
C3-A30X; KRP11A; FRL-253-A120/03CS-A; MK3P-I; 8501RS4; 800T-XD4; 700-HB33Z24
WEBB 15911 RED-SEAL TROLLEY WHEEL BEARING
ALLEN BRADLEY 1746-IB16 SLC500 INPUT MODULE 1746IB16
ALLEN BRADLEY 1746-IB16 SLC500 INPUT MODULE 1746IB16
D225K25R OHMITE 225W 25 OHMS AND D175K50R OHMITE 175W 50 OHMS
D225K25R OHMITE 225W 25 OHMS AND D175K50R OHMITE 175W 50 OHMS
GENERAL ELECTRIC 4578 24V 60W ALL GLASS BEAM LAMP - NIB
GENERAL ELECTRIC 4579 24V 80/60W ALL GLASS BEAM LAMP -NIB
FACTORY BAG MAC VALVE 116B-501JB 24VDC 6 WATTS 116B501JB
FACTORY MRC BEARINGS 208R 0024 ANGULAR CONTACT BEARING
C04T8S00PB050M BALLUFF C04T8S00PB050M CABLE JACKET M12 8 PORT
JERGENS 801020 C4T1.5S –PUSH- 240811 T HANDLE BALL LOCK PIN
PA02 PARTEX PA-02003BV90.5 WIRE MARKER BLACK 5 ON WHITE 1000/PACK
HOTVAC 2000 FOOT PEDAL CONTROL CAT 2003 1AMP 125VAC
AMIRECPRO A-23939-RH 5 RED LED 1 GREEN LED CIRCUIT BOARD ID: M23522
AMIRECPRO A-23939-RH 5 GREEN LED 1 RED LED CIRCUIT BOARD ID: M23624
AMIRECPRO A-23939-RH 6 GREEN LED CIRCUIT BOARD ID: M23625
WESTINGHOUSE 7379A90G03 RC0682 / PP12CO / B44067 CIRCUIT BOARD ID: M231059
MEASUREX 05288300 REV B MPU SERIAL TERMINATION BOARD 04288300
6ES53750LA11 SIEMENS 6ES5-375-0LA11 MEMORY MODULE EEPROM 4K
EFECTOR IFM IG5526 IGA3008-BPKG/US PROXIMITY SWITCH 10-36VDC 8MM
5684-38055 THERMOCOUPLE
FESTO SMEO-4/-4U-K-LED-230 PROXIMITY SENSOR SMEO4/4UKLED230
12X KQ2E0100NJ SMC KQ2E01-00NJ FTG BULKHEAD ION 1/8T X 3/8-24
ASB805016 GOULD AS-B805-016 INPUT MODULE 115V-AC
Omron E32-TC200 Photo Sensor Photo E32TC200 In Bag
PARKER 01.75DSR1.000 AIR CYLINDER, 6.6IN SST, 250PSI 17 BAR
ISHIDA P-5514-1 PC CONNECTION BOARD ASSEMBLY
JOHNSON CONTROLS P32AC-2 PRESSURE SWITCH .05-5IN RANGE P32AC2
GE FANUC IC630MDL316B ANALOG INPUT MODULE 2 CIRCUITS 4-20MA 1-5VDC
HOMEWOOD 4981D56G09 OT1S2 SELECTOR 3 POSITION SWITCH 0T1S2
ISHIDA P-5290A PC BOARD W/ FUSE HER LED INDICATOR P5290A
HAAS LASER 18-13-11-AH V1.3 PCB CIRCUIT BOARD ID: M23835
1722FZ14000A REV AB KENT TAYLOR TERMINAL BLOCK
WESTINGHOUSE 3A99132G02 REV G 3PCPS05 POWER SUPPLY ID: M23544
SMC VX3124-02-5DL1-B VX3 3-WAY MEDIA VALVE VX3124025DL1B
3X MEDAR 6894-2M0 / 68942M0 / 6894-2MO CIRCUIT BOARD ID:M23111
OPTO 22 PB16A 16-CHANNEL I/O MOTING RACK TERMINATION BOARD 000226V 150660120
KQSS18U6 OMEGA KQSS-18U-6 THERMOCOUPLE PROBE WITH CONNECTOR
CURTIS RS15 SOCKET 5X POTTER BRUMFIELD KHU17D11-24V RELAY
ELR-1/25-240 PHOENIX CONTACT 2964694 RELAY 1PHASE 25AMP ELECTRONIC LOAD
IPO RESISTOR 2.6 OHMS HIGH POWER WIREWOD -
17131 MARSH PAPER MACHINE GAUGE 0-100PSI 1/4NPT
SMC CXSL10-20 CXS GUIDED CYLINDER ROD 8310-10250 CXSL1020
NA 125P452 PCB CIRCUIT BOARD
INSTRUMENT TRANSFORMER 80025-551-01 600V CURRENT TRANSFORMER
EFECTOR 8034BL04NL3DBBX INDUCTIVE F81 10-30V 4MM DIA 200MA
EMERSON FISHER ROSEMOT 41B5215X122 DISC I/O CARD P1.4
TUCKER ZA827 AZ01 | B 269 E 110 351 CIRCUIT BOARD ID: M23153
MAC VALVES INC B015701104 CIRCUIT BAR NO VALVES
CUTLER HAMMER 9560H955A CONTACTOR 1002 MODEL 6-172-38 600V 40AMP
800T-A2A2 ALLEN BRADLEY PUSH BUTTON FLUSH HEAD BK
LOT 5 4012225851 ALLEN BRADLEY 40122-258-51 DIVICENET CONNECTOR
CLAROSTAT VK-100-N 1000 OHMS 411-9316 RESISTOR
TURCK Ni2-H08K-AN6X-V1131 PRO. SENSOR 10-30VDC Ni2H08KAN6XV1131