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。

 DODGE TAPER LOCK BUSHING 1310 X 3/4 KEYWAY 119394

SQUARE D SECONDARY SURGE ARRESTER 650 VAC SDSA3650

 RETEMP STAINLESS STEEL 3" FACE TEMPERATURE PROBE 3/8" LONG 0-500°F

 SULLAIR CONTROL SPRING REPLACEMENT 250006-526

 SIEMON SM2-5-A4-20 SURFACE MOT  ASSEMBLY 2 PORT CAT 5 T568B IVORY

DM SLASCO/SPEARS 2" CPVC PIPE FITTING SCH 80

 SPHERCO 1/2" FEMALE ROD END TR-8

DM SALINABAL 1/2" FEMALE ROD END VF-8

 GRAINGER 3 1/2" PRESSURE GAUGE 0-60 PSI 1/4" NPT 0-400 KPA 4FLX7/4FLX7A

  HUCK SERVICE KIT FOR 4800 SERIES RIVET G 111037

 STEYR RADIAL DEEP GROOVE BALL BEARING 6007-2Z/C3

 TEMPCO CARTRIDGE HEATER HDC16660 A06 06 350 WATT 240V

DM SRBC  BEARING BACB10BX BACB10BX06 FFA-PMA

 GRAINGER 2 1/2" PRESSURE GAUGE 0-30 PSI 1/4" NPT 0-200 KPA 4FLV7/4FLV7A

DM SCONSOLIDATED PRECISION BEARING HK 1010 DRAWN CUP NEEDLE

 VIDEOJET SP375008 PRESSURE TANK CAP

DM SCOOK COMPRESSION REBUILD KIT KS00B-7#89

FEDERAL PACIFIC RELIANCE ELECTRIC LINE VOLTAGE FAN COOLING THERMOSTAT PMF-1

DM S ALLEN BRADLEY 2711 PANELVIEW 900/1000 MOTING CLIPS SET OF 6 77135-166-51

ALLEN BRADLEY OUTPUT MODULE SLC 500 1746-0X8

 SYMBOL MC3000 UBC ADAPTER 21-32665-45AR

DM S  CLIPPER FLEXCO 2 SP HT HIGH TENSILE HOOKS 02173 LOT OF 9

 SPANN BOY M291040004 ARC60L 60 CHAIN TENSIONER 1-1/2” TRAVEL

SIEMENS 6ES7 131-4BB00-0AB0 SIMATIC S7

  SWAGELOK 0-100 PSI GAUGE 63mm PGI-63S-NG100-LAOX-6890 2.5" FACE 1/4" NPT

 DODGE 1-15/16 TAPER LOCK BUSHING W/ KEY  SET SCREWS 117169 2012 1-15/16KW

ALLEN BRADLEY 40274-073-54 KNOB ASSEMBLY FOR TYPE J POT

DM SSIEMENS PTM6.2Y420 TERMINATION MODULE

DM S SIEMENS PTM6.2P1K TERMINATION MODULE

DM S INGERSOLL-RAND REAR END PLATE GASKET 99V60-739

DM SINA PERMAGLIDE BUSHINGS PAP1820P10

DM S I-T-E SIEMENS T51 OVERLOAD HEATER ELEMENT

RAYMOND DIODE CIRCUIT MODULE 154-010-248

DM SPHOENIX CONTACT TYPE ST 4-FSI/C FUSE HER

  LOVEJOY 5J S-FLEX COUPLING 7600 RPM 1-1/8" BORE 240 IN-LB TORQUE 1L804

 HONEYWELL 51109181-003 LCN A COAX CABLE SET 3M REV C

 PARKER 19735 H1L5 2QTR15 SEAL

 JOHN CRANE D-1251-106-9100 PUMP SEAL

  ASCO RED-HAT 120 VAC SOLENOID VALVE COIL 212-653-2-D

ALLEN BRADLEY 1746-NI4 SLC 500 ANALOG INPUT MODULE  NO DOOR

  KENSINGTON CLICKSAFE KEYED LAPTOP LOCK MASTER KEYED MK64639M

 DM SLENCO BLACK TAPERED PLUG FOR MILLER WELDER MALE  FEMALE LC-10

 CUTLER HAMMER / EATON 115 VAC INPUT MODULE D200MID1615A

 HONEYWELL CABLE 51196742-100

DM SANNKE CABLE CLIPS 5MM 100 PER BAG 4 BAGS 400 PIECES

 (DM SEDWARDS SIGNALING 50LMP-25WH REPLACMENT HALOGEN BULB 120V AC/DC

DM SPHILIPS CERAMALUX 150W 55V HIGH PRESSURE SODIUM BULB C150S55

 TR 1" RUBBER CARTRIDGE BEARING W/ ECCENTRIC COLLAR RCSM16

SCHNEIDER TELEMECANIQUE 4-6.3A MOTOR CONTROLLER DISCONNECT 5 HP GV2ME10 GVAN11

 GC ELECTRONICS VISUAL PHALERT LIGHT FLASHER 30-7523

DM S  ALLEN BRADLEY 800T-N26W PILOT WHITE LENS LOT OF 6

 EMULEX LIGHTPULSE LP9002L-E 64-bit 66MHz PCI TO 2Gb FIBRE CHANNEL ADAPTER

SYMBOL MOTOROLA ZEBRA ADP9000-100R CABLE ADAPTER MODULE

 LUBE DEVICES INC. CONSTANT LEVEL OILER 1U616

 AVERY DENNISON MONARCH PAXAR LITHIUM-ION BATTERY PACK 7.4V 12009502

 PARKER 19735 H1L5 4QTR17 SEAL

 DM SSWITCHCRAFT SERIES A 3-PIN XLR FEMALE CABLE MOT CONNECTOR A3F

 (DM SWESTWARD HSS GROD SPIRAL POINT TAP-PLUG 1/2"-13 C 3 FLUTE 5TWD9

  CLASSIC SAN JAMAR CUP DISPENSER

  ALLEN BRADLEY CLEAR ILLUMINATED PILOT LIGHT 24 VOLT AC/DC 800T-QH24C

 PILZ PNOZ MI1P SAFETY CONTROL MODULE 24 VDC 773400

SERTA C264 PRESSURE TRANSMITTER /-0.1 RANGE 18 - 32 VDC

DM SABS 1-1/2" 0-160 PSI PRESSURE GAUGE 14FLZ8

DM SABS 1-1/2" 0-15 PSI PRESSURE GAUGE 14FLZ4

DM SABS 1-1/2" 0-30 PSI PRESSURE GAUGE 14FLZ5

DM SABS 1-1/2" 0-30 PSI PRESSURE GAUGE 14FLP9

ELLIS  WATTS 40W BAND HEATER KCA-HTR8510 120VAC K0908-0101

DM S TIMKIN INDUSTRIAL SEAL 1.260" x 1.587" x .250" 471750

 ELLIS  WATTS 114W BAND HEATER KDD-HTR2270 120V K0907-0104-11

 ELLIS  WATTS 114W BAND HEATER KDB-HTR1270 120V K0907-0104-9

 ELLIS  WATTS 114W BAND HEATER KDD-HTR1270 120V K0907-0104-10

 BIMBA SR-040 75-DPBW STAINLESS PNEUMATIC CYLINDER 4-1/4" STROKE 1" BORE

 THOMSON SMT6EM20WW LINEAR BEARING

 AMF POTTER  BRUMFIELD TIME DELAY ON OPERATE ADJUSTABLE 8 BLADE CUB-51-70030

 DM SBRECO 2X492C SAFETY BLOW G

 FAFNIR 5305K ANGULAR CONTACT BEARING

DM SGE GENERAL ELECTRIC C2204 OVERLOADS HEATER ELEMENTS

DM SCUTLER HAMMER H2003B THERMAL OVERLOADS DOM .56-.907 AMPS

DM SSCHAEFER BRUSH 43545 SINGLE SPIRAL SS ROD FLUE 2-1/4" BRUSH 2" LOT 2

AMETEK 300-6288 WINDOW  MIRROR FOR WHITE CELL ASSY

 1/4" ORANGE PAINTED FORGED ALLOY CLEVIS GRAB HOOK WITH PIN T80

 ALLEN BRADLEY 1489-A1C050 CIRCUIT BREAKER  1 POLE 5 AMP 277 VAC 48VDC

DM S TIMKEN DRIVES D88K TD CO LINK W/ 1 TD PIN 1 SHLD PIN 2 KEYS 34033

  SMITH EQUIPMENT 4-4000 PSI BRASS GAUGE 2.5" GA042-07

 LOVEJOY 1L800 S-FLEX COUPLING BODY STYLE 5J 5/8" BORE

 LINCOLN ELECTRIC S12334-43 REED SWITCH ASSEMBLY

ALLEN BRADLEY 32A CONTACTOR 600 VAC 100-C12E*400 W/ 100-S AUX CONTACT 24 VDC

ALLEN BRADLEY 10-16 AMP MOTOR PROTECTION CIRCUIT BREAKER 600 VAC 140M-C2E-C16

  VEEDER ROOT ADAPTOR MODULE 329587-001

 SKF 6209-2ZJEM RADIAL  DEEP GROOVE BALL BEARING 45 mm X 85 mm X 19 mm

DM S SKF 6209-2ZJEM RADIAL  DEEP GROOVE BALL BEARING 45 mm X 85 mm X 19 mm

 STIHL 12" CHAIN LOOP 3610 005 0044

  STIHL 12" CHAIN LOOP 3610 005 0044

  SCHRADER BELLOWS ROD SEAL KIT 190208001

 NTN RADIAL  DEEP GROOVE BALL BEARING 6305LLUC3/EM

ALLEN BRADLEY 25 AMP CONTACTOR 600 VAC 110/120V COIL 100-C09*400

 ASHCROFT 0 - 200ºF PRESSURE GAUGE 595-08

DM SSYLVANIA LUMALUX HIGH PRESSURE SODIUM LIGHTBULB 100-WATT LU100/MED 67506

DM SDM SSYLVANIA LUMALUX HIGH PRESSURE SODIUM LIGHTBULB 100-WATT LU100/MED 67506

DM SSYLVANIA LUMALUX HIGH PRESSURE SODIUM LIGHTBULB 150-WATT LU150/55/MED

CARLO GAVAZZI CGT-22 MOTOR THERMAL OVERLOAD RELAY 4-6 AMPS

SYLVANIA ROUGH SERVICE FROSTED BULB PACK OF 2 100-WATT 130 VOLT 100a/RS/2/RP

 SYLVANIA ROUGH SERVICE FROSTED BULB PACK OF 2 100-WATT 130 VOLT 100a/RS/2/RP

 DM S ALLEN BRADLEY B66 HEATING ELEMENT

  YAKTRAK PRO TRACTION DEVICE FOR SHOES-SMALL MODEL 08609

   YAKTRAK PRO TRACTION DEVICE FOR SHOES-SMALL MODEL 08609

 DELL M164C 3.7 V RAID CONTROLLER E2K-UCP-60

 MARTIN 2012 1-1/8" TAPER-LOCK BUSHING

 BREWER MACHINE  GEAR TENSIONER FLANGE GM

RANCO D16-104-000 TEMPERATURE CONTROL 5-50°F

 (DM S  3/4"-10 STAINLESS STEEL HEX NUT 317L LOT OF 10

 MARTIN TAPER-LOCK BUSHING 2012 13/16

 TB WOOD'S 1-3/8" SURE-FLEX FLANGE 6J

  MAC VALVE FC82A-AA PNEUMATIC VALVE BODY MANIF W/ HARDWARE

 TB WOOD'S 6JX1 SURE-FLEX FLANGE

SIEMENS SIMATIC S7 IM361 IM-R S7-300 6ES7 361-3CA01-0AA0

  APPLETON COPPER  ALUMINUM GUARD VPGU-1

2DM SNORTON 4-1/2" x 7/8" FIBRE METALITE SLOTTED DISCS 80V GRIT F226

DM S ALLEN BRADLEY 1746-IB16 SERIES C SLC 500 INPUT MODULE 10-30VDC

  POWER FIRST BLACK 14 AWG 3 CONDUCTOR POWER SUPPLY CORD 15A 12' 1TNA3A

DM SGE 13W COMPACT FLUORESCENT LAMP 2 PIN GX23 F13BX/841/ECO  97571

  DRIVES 11720 COTTERED ROLLER CONNECTING LINK 120-3 CHAIN 1 1/2" PITCH

 A  I PRODUCTS 4L1660 SECTION WRAPPED BELT 1/2" X 166" A164

SWAGELOK SS-12-HCG 316 STAINLESS HEX COUPLING 3/4" FNPT x 3/4" FNPT

SWAGELOK SS-6-HLN-4.00 STAINLESS NIPPLES MALE 3/8" NPT 4" LONG

 DODGE TAPER LOCK BUSHING 2517 X 2-3/8 KEYWAY 117098

DODGE DUAL DUTY SHEAVE 1 GROOVE 118194

 BOWER / BCA TAPERED ROLLER BALL BEARING 3920

 AVAYA TN744E CALL CLASSIFIER DETECTOR CARD 021205714444 VERSION 2

DM SOMRON TIMER H3CR-A8 0.05s-300 HOURS, 8-PIN 100-240VAC, 100-125VDC

 DM SOMRON TIMER H3CR-A8 0.05s-300 HOURS, 8-PIN 100-240VAC, 100-125VDC