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
GE PANELBOARD SWITCH QMR364 200A 600VAC 3P FUSIBLE
GE PANELBOARD SWITCH QMR365R 400A 600V 3P FUSIBLE NO STRAP KIT
GE PANELBOARD SWITCH THFP323L 100A 240V 3P FUSIBLE LEFT-HAND
GE PANELBOARD SWITCH THFP325 400A 240V 3P FUSIBLE NO STRAP KIT
GE PANELBOARD SWITCH THFP325 400A 240V 3P FUSIBLE W/HARDWARE
GE PANELBOARD SWITCH THFP365 400A 600V 3P FUSIBLE
GE PANELBOARD THFP324 200A 240V 3P FUSIBLE W/HARDWARE
GE Pannelboard Breaker Mounting Kit 3 Phase 200 Amp
GE POWER BREAK TP3030SSFC 3000A 3P CIRCUIT BREAKER
GE Power/Vac 1200A PVDB1 15.5-20-3 15.5 kV Distribution Breaker General Electric
GE Power/Vac 1200A VB1 4.16-250-3 5 kV Vacuum Breaker PowerVac 1200 Amp 4.76kv
GE Pro-Stock MLA1 Pressure Main Lug Kit, 6 AWG to 350 kcmil Conductor CU-AL6-350
GE Pull Type Solenoid CR9500A101C2A NOS
GE QMR FUSIBLE INTERRUPTER PANEL SWITCH THPS 367 800A 240V 3P
GE QMR323 Fusible Panelboard Switch DDID3-323 3Pole 100A 250VAC
GE RESISTOR IC9033F5B8 0.34 OHM
GE RHBTF Receptacle Hook Box
GE SAFETY DISCONNECT SWITCH TH4324R 200A 240VAC 3P FUSIBLE
GE SEHA36AT0100 3 Pole 100 Amp 600V Specta RMS Circuit Breaker Take Out
GE SFHA36AT0250 200 Amp Trip 600V SRPFA250A200
GE SFHA36AT0250 200 Amp Trip 600V SRPFA250A200 Small Chip
GE SFHA36AT0250 Circuit Breaker 3P 250A 600V with 150A Trip Tested
GE SIGNAL PROCESS CIRCUIT BOARD 531X309SPCAJG1 F31X309SPCAJG1 GENERAL ELECTRIC
GE Size 0 Combination Starter 600VAC Stainless 4X BREAKER
GE SIZE 1 COMBO STARTER CR308C1042RXNTDBG 27A 600V W/COIL 15D21G02 110-120V SER
GE Snap In Relay 1/6 HP TK16 TK 16
GE SOFT START ASTAT QC2KDA 63A 220-480V 3PH AUX CONT 5A
GE Solid State Overload w/ Base Adaptor RT22G Trip: 42-55A
GE SPECTRA ADS36030HD 30A 600V FUSIBLE TWIN PANEL SWITCH
GE SPECTRA RMS MAG-BREAK CIRCUIT BREAKER SELA36AI0150 150A 600V 3P W/JACK CABLE
GE SPECTRA RMS MAG-BREAK CIRCUIT BREAKER SELA36AI0150 150A 600V 3P
GE SPECTRA SERIES FUSIBLE SWITCH ADS36060HD 60A 600V 50HP
GE Spectra SGHA36AT0600 Circuit Breaker 600 Amp 3 Pole 600 V With 500 Trip Plug
GE Stainless Nema 4X Motor Control Size 1
GE TED134030 - 30 AMP, 480 VAC, 3 POLE CIRCUIT BREAKER -
GE TED134040WL CIRCUIT BREAKER, 40 AMP, 480 VAC/250 VDC, 3 POLE
GE TED134050WL, 50 Amp, 480Vac, 50/60Hz, 3 Pole Circuit Breaker
GE TED134060V 60Amp 480Vac Circuit Breaker
GE TEY CIRCUIT BREAKER TEY3100 100AMP 240VOLT 3POLE
GE TEY370 70 Amp 3 Pole 480Y/277V Bolt On Circuit Breaker Tested Missing Screw
GE THED136015 3p 600v 15a 25k Circuit Breaker
GE THED136050 3 POLE CIRCUIT BREAKER 50 AMP 600 VAC 250 VDC / TESTED OK
GE THPR3608ET1 High Pressure Contact Switch 800A 600V
GE THPR3612B/ THPR 3612B High Pressure Contact Switch 1200A 600V
GE THQB32100 3 Pole 100 Amp 240V Bolt On Circuit Breaker THQB
GE THQDL21150 150 Amp 2 Pole Circuit Breaker 240V General No Wire Marks
GE THQMV100D Bolt-On Mount Main Circuit Breaker 2-Pole 100-Amp 120/240-Volt
GE THQMV150WL N 4P 150A 240V 22AIC MAIN BREAKER WITH LUGS
GE THQMV175D 175 AMP Bolt-On Main Circuit Breaker
GE THQMV200WL 200 Amp 2 Pole MAIN Circuit Breaker 240V BOTTOM Buss
GE TJD432400WL 400A 240V 3-Pole Molded Case Breaker Old Stock
GE TJJ CIRCUIT BREAKER TJJ436350 350AMP 600VOLT 3POLE W/SHUNT
GE TPHE480D10PP Transient Voltage Surge Suppressor 200KA 480V
GE TQD CIRCUIT BREAKER TQD32125 125AMP 240VOLT 3POLE FACE
GE TQD22150 2-Pole 150A 240V 1-Phase Molded Case Circuit Breaker
GE TQD22200 200 Amp Circuit Breaker
GE TQD225F Breaker Enclosure W/ THQD2200 Circuit Breaker
GE TQD225F Flush Mount 225 Amp Max Breaker Enclosure
GE TQD32100 3-Pole 240V 100A Molded Case Circuit Breaker ( FACE)
GE Tranquell 65kA 120/208V 3PH Wall Mounted Surge Protector Suppressor
GE TRANSFORMER 9T21C655 DC REACTOR .015 OHMS .004 AT 140A DC 360 HZ RIPPLEAR
GE TRANSFORMER 9T23B4001G22 20KVA 3PH 460V 266/460V
GE TRANSFORMER 9T23Q3572 30KVA 480V 208/120V 3PH 3R TYPE QL
GE TRANSFORMER 9T23Q4000G22 15KVA 3PH 460V 266/460V
GE TRANSFORMER MODEL 9T51B0510 1KVA PRI 240/480V, SEC 120/240V
GE TWIN PANELBOARD THFP322L 60A/THFP323 100A 240V 3P FUSIBLE
GE Vingmed Ultrasound SCONV5 FA302029 | REV.F | FA200029 D | Rev:K
GE Wave Pro WE2CARAQEXBBXBX WHP-08 Air Circuit Breaker
GE WavePro AIR BREAKER WE2CAR6QEXBBXBX TYPE:WHP-08 800A 254-635V
GE WavePro WE2BAR4QEXBBXBX WHP-08 Air Circuit Breaker
GE WavePro WE2DARBQEXBBXBX WHP-08 Air Circuit Breaker
GE, CORE & COIL TRANSFORMER, 9T58K0050, 0.5KVA, 60HZ, SINGLE PHASE, 110/115/120V
GE, IC 302 BB4AB3A312AA2A 400 Amp 4800V 60HZ AC CONTACTOR,
GE/FANUC IC670MDL644J 24VDC POS/NEG FAST 16PT INPUT MODULE
GE-40-2000 Wound Field DC Motor 26HP 240dc 2110AT 2491 RPM 90 day A-4
GE50-1500 DC 15 HP 1750/2300 RPM 240v CD258AT ODP Enc MotorWarranty
GEC ALSTHOM Power Supply AMS 2
GEC ALSTHOM Power Supply CMS3 7.5/15 | LX430CK
GEC CAJ9034 Basic I/O Expander 9284
GEC Industrial Controls 8211 Ladder Processor 8211E14306
GEFEG- NECKAR D882Z00008303/IP44 Asynchronous Motor + Z8/2
GEFRAN 1300 PID Controller 1300-RR00-00-0-1 | Vers.: V 2.09
Gefran 556-1-1-2-2-P37
GEFRAN F061102 Ground Pressure Sensor KE0-6-M-B01M-1-4-0-S-E 2130X000X00
GEFRAN M30-6-M-B02C-1-4-0 // 200 Bar
GEFRAN Pressure Transducer TK-E-1-M-B07U-H—V 2130X000X00
Gefran Regloplas RT 30 Temperature Controller 1001-R0-1R-0-1-N13
Gefran Regloplas RT22 temperature controller 1101.R0.1R.0.1.P21
Gefran SIEIDrive S6D12 AC Inverter ADV20-1015-KXX-4F
Gefran Thermocouple TC1M-A-1-J-2-C-G Old Stock
GEFRAN WE3-6-M-B01C-1-0-L | 2130X000X000 | Melting Temperature Transmitter
GELMA GELMO MBB MMI-2.1/S001 // max. 30W
GEM52060 | Red Lion | Preset Dual Indicator | Relay Output | 115/230 VAC,
GEMINI RESEARCH E0CS250 EPITYME 2 CONTROLLER, 114384
GEMS 26717 Level Switch
GEMS LS-800-3 Explosion Proof Float Level Switch
GEMS Sensors 27A1E0 - Series 27 Warrick Level Control, 10 K Oh
GEMS SENSORS LS8003 LIQUID LEVEL SWITCH 141142 NNP
GENEBRE GNP44S4 SPRING RETURN ACTUATOR
GENERAL ELECTEIC MOTOR STARTER MANUAL 19-25 AMP GPS1BSAP
General Electric - Panelboard Enclosure - #AB43B
GENERAL ELECTRIC 1.50kVA TRANSFORMER 9T51B4004 208-120/240v
General Electric 105C9393-P2B / 105C9393 115VAC 125VDC Magneblast Breaker Mot
General Electric 1200 Amp Breaker SKPB36BC1200 Versa Trip Breaker