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。

ENDRESS  HAUSER 50W2H-UL0A1AA0BAAA PROMAG W FLOW METER 8" FITTING

 LANDIS  GYR 320a 400 amp meter 7t jaw bypass level ringless can socket

 Milbank 320a 400 amp meter 7t jaw U-400 bypass level ringless can socket

 talon 320a 400 amp meter 7t jaw U-400 bypass level ringless can socket

Aluminum 320a 400 amp meter 4t jaw U-400 bypass level ringless can socket

 TALON 320a 400 amp meter 4t jaw bypass level RINGLESS can socket

BRISKHEAT FGDHC551200 BLANKET DRUM HEATER 1600 WATTS 1 PHASE 120V 13.3 AMPS

 SQUARE D MA4|MA24 TRANSIENT VOLTAGE SURGE SUPRESSOR SURGE PROTECTIVE DEVICE

HONEYWELL K4LCN 51402755-100 K4LCN-4 BOARD PROCESSOR

GE SGLB36BF0150 3 Pole 150 Amp Frame 600V Circuit Breaker Flawed #38

 ETI APS-4C SNOW  ICE MELTING SYSTEM CONTROL PANEL 208/240V 35VA 3PH 22472

 CUTLER HAMMER ECL03C1A6A LIGHTING CONTACTOR ELECTRICALLY HELD SERIES AK

Novax MD267F Rev B / Durand-Raute Parameter Display

 Square D Vhu364 200 Amp 600v 3Ph Non-Fusible Safety Switch Disconnect

SEDECAL A6097-18 HIGH VOLTAGE TANK T-31559

 Bailey Keypad Module IIADP02 OIS-20 Fire Alarm

Square D LDP36400U31X 3 Pole 400 Amp 600V Gray Label Power Pact Breaker

Allen Bradley Bulletin 133-DAN 380v 7.5HP 3 Phase VFD AC Adjustable Drive

 COPELAND ARJ11K1-CAV-901 REFRIGERATION COMPRESSOR 1PHASE 208/230 200V W/ KIT

General Electric PLZ00MG01 Power Leader Modbus Concentrator

ENDRESS  HAUSER 50W1F-UL0A1AC1BBBW PROMAG W FLOW METER 6" FITTING

 SQUARE D 8536SFO1H652S SIZE 4 AC 3 PHASE MOTOR STARTER LTMR08MFM

 EM3615T MOTOR 93.000WT 60HZ 3 PHASE 5HP 208-230/460V RMP: 1750

MEGGER DLRO2 2A DUCTER OHMETER IN CARRY BAG W/ ACCESSORIES DLR02 LOW RESISTANCE

Eaton PXMP-EPM-M Power Xpert Multipoint Meter PXMPEPMM

GE SGLB36BF0400 3 Pole 400 Amp Frame 600V Circuit Breaker

MEGGER DLRO2 2A DUCTER OHMETER IN CARRY BAG W/ ACCESSORIES DLR02 MISSING CORD

 SQUARE D T02EN13 SIZE 3 REVERSING 600V 3 PHASE MOTOR STARTER

MIDWEST 320a 400 amp meter 4t jaw bypass level RINGLESS can socket MEPKU1FS1EMT

DM SMIDWEST 320a 400 amp meter 4t jaw bypass level RINGLESS can socket MEPKU1FS1EMT

MILBANK 320a 400 amp meter 5T jaw bypass level RINGLESS can socket 2AB350 #2

 Basler Electric SSR 125-12 Static Voltage Regulator 120/240/480/600VAC AK

CROUSE HINDS EXL21 ELECTRIC LIGHTING FIXTURE WITH EXIT SIGN 60 WATTS FIRE ALARM

ADVANCED RF TECHNOLOGIES AEON REPEATER AEON-9030 DIGITAL CELL MODEM NO KEYS AK

WOODWARD 8406-116 EGCP-2 Digital Control Rev A For Use On A Flat Surface

810023-01-08 BENSHAW RediStart RB2 circuit board 300055-01-05 08247050764

 Toshiba LF622FAC211E Electromagnetic Flow Meter 300 Gal/Minute

SENS NRG22-10-RC BATTERY CHARGER INPUT 6/3 AMPS OUTPUT 10 AMPS 12/24VDC

DM SSENS NRG22-10-RC BATTERY CHARGER INPUT 6/3 AMPS OUTPUT 10 AMPS 12/24VDC

 RELIANCE EM7042T 3 PHASE MOTOR HAZ LOC 182T XPFC 1760/1460 RPM 3/2 HP

 ABB EM366T MOTOR 70.000WT FR: 182T 60HZ 3 PHASE 3HP 230/460V RPM: 1760

 Asco K601800-002 Control Panel Generator/Transfer Switch Control Panel AK

PARTLOW 2331101 MIC 2000 115/230VAC TEMPERATURE CONTROLLER PROCESS CONTROL EQPMT

Landis  Gyr 320a 400 Amp 600V Meter Socket Can Ringless 7T Jaw 3Ph 4W Bypass

Square D MHL MHL36900 3 Pole 900 Amp 600V Breaker Flawed "AK"

ITE SIEMENS LMD LMD63F800 3 Pole 700 Amp Trip 600V Circuit Breaker

CROUSE HINDS EVA263 ELECTRIC LIGHT FIXTURE FOR HAZARDOUS LOC 250V LAMP FLAWED AK

 BEVCO RW120-10-BB "IN-USE" WARNING LIGHT CONTROL PANEL 120VAC XRAY CT IN USE

 Milbank U6084-O-BGE 320 Amp 240v 1 Phase 3 wire 4 Jaw Meter Socket Bypass

HATHAWAY BETAGAUGE-|| PRESSURE CALIBRATOR

 SIMPLEX 4009-9602 IDNAC REPEATER RED 07431022 FIRE ALARM   9200-218

ENDRESS  HAUSER 50P80-ER0A1AA0BAAW PROMAG 50 FLOW METER 3" FITTING

 HONEYWELL MP918B 1002 2 PNEUMATIC DAMER ACTUATOR SPRING RANGE 3-13PSI AK

 RELIANCE CEM3584T 3PH MOTOR 1.5HP 230/460V 4.6/2.3A 1765RPM 145TC

REXROTH R900949286 DIRECTIONAL SERVO VALVE 4WS2EM10-51/60B11ET315K31EV XTAPBTY

LOT OF 9 AEI FLEX PROTECTOR PLASTIC TUBING 336FP2 W/ TEST VALVES EXHAUST 3' x 4"

Milbank U-400 400 Amp 240v 3 Phase 4 wire 600v 480v 7 Jaw Meter Socket Bypass

Siemens SENTRON ND6 ND63F120 3 Pole 1200 Amp Trip 600V Circuit Breaker FLAWED

ZMASTER 11204 150 ENTRANCE  MAIN PANEL PROTECTION TRANSIENT VOLTAGE SURGE

ALLEN BRADLEY SIZE 5 MOTOR STARTER 2 SPEED 200HP “AK” 505-FOD 509

ALLEN BRADLEY SIZE 5 MOTOR STARTER REVERSING 200HP “AK” 505-FOD 509 40441-451

 FAIRCHILD 100508 100 HIGH FLOW PRESSURE REGULATOR 250PSI 17BAR 1700KPA MAX

 FAIRCHILD 100508 100 HIGH FLOW PRESSURE REGULATOR MAX 250PSI 17BAR 1700KPA

SQUARE D DGP DGP36400E20 3 Pole 400 Amp 600V Circuit Breaker AK

 LEA INTERNATIONAL DS2-277/480-3Y-S TRANSIENT VOLTAGE SURGE SUPRESSOR 480V

 RELIANCE EM3587T 3PH MOTOR 2HP 230/460V 5.8/2.9AMPS 1750RPM 145T

THYSSEN KRUPP ELEVATOR 188E E169497 FIRE ALARM CIRCUIT BOARD CARD

ODRIVE R47 DRS71S4 MOTOR 3 PHASE RPM 1700/10 60HZ V230/460 YY/Y

SIEMENS MMB-2 MXL CERBERUS PYROTRONICS 315-095097 CIRCUIT BOARD FIRE ALARM AK

 NORTH AMERICAN 7216-4 REGULATOR CONTROL VALVE

 RELIANCE ELECTRIC 6985960-001 XEX AC MOTOR 460V 5HP Frame: X 184TC

Talon 320a 400 Amp 600V Meter Socket Can Ringless 5T Jaw 1 Phase 3W Bypass #5

 ACE LEDS LED6M-VR55-4K-1 / AC84CD2100ATBFY Type L17/NL 2 Piece

CUTLER HAMMER TYPE W 24" 100 AMP BREAKER FEEDER MCC MCCB BUCKET ON

 SIMPLEX 4009-9602 IDNAC REPEATER RED 07431022 FIRE ALARM 9200-218H

MILTON ROY E81C2154G FLOW CONTROL DIVISION PRECISION PUMP  VALVE

 ETI SIT-6E PAVEMENT MOTED SNOW  ICE SENSOR 24219 W/ HOUSING 23832

 Square D LA LA36350 3 Pole 350 Amp 600v I-Line Circuit Breaker Green NTO

 SQUARE D 8536SFO1H30S SIZE 4 600V 3 PHASE MOTOR STARTER MOTOR LOGIC RELAY

 VM7026T 3 PHASE 3⫽2 HP MOTOR FRAME 182TC 208-230/460 190/380 Volts

Square D h363NEI 100 Amp 600v 3 POLE Fusible Safety Switch Disconnect INTERLOCK

SQUARE D MODEL 6 100 AMP BREAKER FEEDER MCC MCCB BUCKET HJL

SIEMENS SIMATIC 545 545-1106 CPU MODULE LR64027 PLC CHASSIS CARD ASSY 2807176 AK

KIDDE FENWAL AK 76-100000-001 PEGAsys FIRE SYSTEM CONTROL PANEL FIRE ALARM

 RELIANCE ELECTRIC P1823031 MOTOR 5 HP 3 PHASE 60HZ RPM: 1800 FRAME: 184T

SQUARE D 8536SFO1H30S SIZE 4 600V 3 PHASE MOTOR STARTER MOTOR LOGIC RELAY 120 V

ABB SACE TMAX T7N-D/PV-E 1000 1SDA08290R1 1000 AMP W/O JUMPER KIT

 RELIANCE EM3558T 3 PHASE SUPER-E MOTOR 2HP 1755RPM 6-5.8/2.9 AMPS

 RELIANCE EM3558T 3 PHASE SUPER-E MOTOR 2HP 1755RPM 5.8/2.9 AMPS 145T

SIEMENS TXR-320 FIRE ALARM RELEASING PANEL IT TXR320 WITH KEY AK

 GROVE GEAR W5250036.00 RIGHT ANGLE GEAR REDUCER BMQ525-15-L-56 W5250036

 GE SGHC SGHC3604L3XX 3 Pole 400 Amp 600V Circuit Breaker NO RATING PLUG NTO

Cadillac Escalade 18" Tire Rim 18x8Jx31 P265/70/R218 BLIZZAKS SET OF 4

ALLEN BRADLEY SIZE 5 MOTOR STARTER 200HP 709-FOD103 40105-404-05-0036

ENDRESS  HAUSER 50P50-ER0A1RA0BAAW PROMAG 50 FLOW METER 2" FITTING

 GE ABB THN3364 200 Amp 600v 3Ph Non Fusible Type 1 Safety Switch Disconnect

VERSA CSG-4332-027-D024 12-WAY SOLENOID VALVE 24VDC 0.75W CSG4332027D024

Size 0 Combination Motor Starter 120 Coil 3 Phase Nema 1 stainless steel breaker

 Detroit Diesel 10479339 Delco-Remy Starter 24 Volts AK

Milbank U-319142F 400 Amp 240v 1 Phase 3 wire 4 Jaw Meter Socket Lever Bypass

ENDRESS  HAUSER 5P3B1H-FKT9/0 PROMAG P FLOW METER 4" FITTING

 BRADLEY S19214DC HALO EYEWASH SS BOWL AND COVER EYEWASH PEDESTAL MOT

Bruker AXS C79298-A3220-C102 I/O Control Circuit Board AK

SQUARE D 8536SGO1 SIZE 5 600V 200HP 480v COIL MOTOR STARTER

SQUARE D 8536SGO1 SIZE 5 600V 200HP 600v COIL MOTOR STARTER

THERMAL GAS SYSTEMS 1-D3 HALOGUARD III MULTI-GAS MONITOR 1-D3-3ALS(DM S 1D3 AK

JOHNSON CONTROLS METASYS MS-N301310-1 REV U SMOKE CONTROL SYSTEM W/ KEY FLAW AK

 VM3613T MOTOR 70.000 WT 60HZ FR: 184TC 3 PHASE 5 HP 208-230/460V

 EATON 05147547-5591 PW9120 3000H POWERWARE POWER SUPPLY 120V

ENDRESS  HAUSER 50P40-ER0A1RA0BAAW PROMAG 50 FLOW METER 1 1/2" FITTING

 Square D LA 350 X630492 3 Pole 350 Amp 600v Circuit Breaker NNB LAL36350

SIMPLEX 565-220 D | POWER SUPPLY INTERFACE FIRE ALARM CIRCUIT BOARD | 565220D

 ING INTRAC 797 RETRACTABLE HOUSING FOR PH SENSOR BIOTECH STERILIZATION

ENDRESS  HAUSER 50P25-ER0A1AA0BAAW PROMAG 50 FLOW METER 1" FITTING

 TORK DLC400BP 4 ZLIGHTING CONTROLLER INDOOR/OUTDOOR ENCLOSURE INPUT

Landis  Gyr 320a 400 Amp Meter Socket Can Ringless 4T Jaw 1 Phase Bypass

ENDRESS  HAUSER 10P1H-EL1A1AA0B5AA PROMAG P FLOW METER 4" FITTING

 SIEMENS DC-120 POWERMETER SUPPLY 4300 108-132VAC/.25 AMP/47-66HZ

SQUARE D CM-2350 | POWER LOGIC CIRCUIT MONITOR CLASS 3020 | CM2350

PCI WEDECO LC400 OZMONITOR S2000-I/O-F PANEL 115/230V 0.5A 1PHASE 0-10PPM AK

Allen Bradley Panelview 900 2711-K9A1 Series D Rev A FRN 2.00 Monitor KMGM

 EMERSON US MOTORS U5S2ACR B102 5HP 1750RPM 3PH UTF 184.TC FRAME 230/460-208V

 GE THN3362SS 60 Amp 600v Non-Fusible Safety Switch Disconnect Stainless

( OF 100)  Square D QOB QOB120 1 Pole 20 Amp 120V Yellow Circuit Breaker

 ( OF 100)  Square D QOB QOB120 1 Pole 20 Amp 120V Yellow Circuit Breaker

SQUARE D MODEL 6 70 AMP BREAKER SIZE 2 MCC MCCB BUCKET 15-45 OVERLOAD ON LIGHT

 Symmetry G4T-M2150-043 Multinode Controller 2DBC Fire Alarm

 Square D LA LA36300 3 Pole 300 Amp 600v I-Line Circuit Breaker Gray NNB

 SYMMETRY G4T-M2150-001 M2150 8DBC MULTINODE CONTROLLER PACKAGE FIRE ALARM

 ABB CDP3436 MOTOR 28.000WT FR:56C .75HP 180V RPM: 1750

EATON XTCE650N DILM650 3-PHASE XT IEC MOTOR STARTER CONTACTOR FLAWED