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。

 SMC NCA1T200-0600-XB7 CYLINDER MAX. PRESS 250 PSI 7" STROKE 3/4" BORE

  REVERE TRANSDUCER LOAD CELL 1.5 mV/V AT 100 LBS MODEL 363-D3-1.5K-20T1

 REVERE TRANSDUCER LOAD CELL 3 mV/V AT 200 LBS MODEL 363-D3-200K-20T1

 EATON AEGIS SERIES POWERLINE FILTER 120 VAC 1 PHASE 3 AMP 5kA SCCR ADPV12003

 GE FANUC 24 VDC INPUT MODULE 32 PT POS/NEG GRP IC200MDL650K

 HONEYWELL Q795A 1004 4-SIDED SUBBASE FOR USE W/ R7795

AMETEK DISPLAY CONTROL BOARD 80-231703-90 8023170390

  ASCO 1/4" SOLENOID VALVE 100 PSI 120VAC 6W 83497

  MAC SOLENOID VALVE 120 PSI 2.9 WATT 110/120 VAC 92B-AAB-000-DM-DJAJ-1JD

DM SHEAVY DUTY CAST IRON SWIVEL CASTERS 5"X 2" WHEELS SET OF 2

  ASHCROFT 1259 PROCESS GAUGE 200 PSI SAFETY GLASS 45 1259PD 04L XLJNNOCSG5

INGERSOLL RAND ARO 637124-EB 1-1/2" DIAPHRAGM PUMP REPAIR KIT 1:1 RATIO

AIR PRODUCTS 30/200 PSI AIR PRESSURE REGULATOR W/GAUGE 809-C-416288

 TRERICE 600 PSI PRESSURE GAUGE 5-1/2" FACE 1/4 NPT AB251X 5.5" FACE

 GE GENERAL ELECTRIC 1/6 HP AC MOTOR 56CZ FR 460V 1725 RPM 3PH 5K42DN4169BR

PERFECTING SERVICE ROTARY ION 1/2" 9000 SERIES, PART NO. 480006 94 RH

 SUPERIOR 3/4" MASTER SHUT VALVE HIGH PRESSURE 3/4"x3/4 NPT FEMALE 430X4N

JOHNSON CONTROLS SUMP PUMP SWITCH F59A-1C

  SQUARE D SIZE 0 REVERSING STARTER 600 VAC 120 VAC COIL 3P 8736 BA010-S1

40) FERRAZ SHAWMUT USM1I L214462 FUSE HERS 690V 30 AMP MAX 0

DM S40) FERRAZ SHAWMUT USM1I L214462 FUSE HERS 690V 30 AMP MAX 0

  PARKER 1" BRASS GENERAL PURPOSE VALVE GP10A

  WIKA 4-1/2"  6" SOLID FRONT LIQUID FILLED PROCESS GAUGE 400 PSI 2XX.34

 ASCO 3/4" VALVE 17.1 WATTS 120 VAC 125/150 PSI ASCO EF8210G88

 MEAN WELL LED RETROFIT LIGHT KIT 120 WATT 5000K 480 VAC 1803063

  ALLEN BRADLEY ENCLOSED SIZE 00 MOTOR STARTER 240 VAC COIL 2 HP 509-TAA

 BLINE B494-24GRN BRACED SINGLE BRACKET 24" GREEN ISTRUT WALL BRACKET 24

  2-1/2" SWINGING GATE CHECK VALVE CF8M V-145 / 21/2-200

 MARTIN E-STL 2-1/4 TOP SPROCKET

MARATHON 1/4 HP ELECTRIC AC MOTOR 1725/1425 RPM 240V 5KH32GNB813AX

CANON GPR-7 TONER IT BLACK TONER CARTRIDGE IMAGE RNER 8500 SET OF 2

 AMERICAN INTERNATIONAL ELECTRIC AIE 750W 16" IMPULSE SEALER 115V AIE-400P

  PETRECO 2-1/2" INSULATOR 7A-103-404

 DM SLOVEJOY JAW COUPLING 1⅞" CIRCULAR BORE SET OF 2 L-190

  MAGNETEK #438 1/6-1/8-1/10 HP BLOWER MOTOR 1075 RPM 208-230V 1Ø HE3E068N

 SCHRADER 1/2" NPT 3 VALVE SOLENOID 31500-8220 W/ MANIF 220VAC

INTERNATIONAL DOOR CLOSERS 2000-B 90° H OPEN BODY

KILLARK EMI15 HAZARDOUS LOCATION INCANDESCENT FIXTURE 115/250VAC

WATTS 4.5 GAL POTABLE WATER EXPANSION TANK PLT-12

ABB KENT-TAYLOR R1401LA10200DD-23658 ELECTRICAL TO MOTION ELEMENT 110/117 VOLT

CROUSE HINDS EMN23 MOTOR STARTER ENCLOSURE EXPL. PROOF CL2510 2 POLE EMN23 D21 0

 GE 1/4 HP SPLIT CAPACITOR MOTOR 1075 RPM 3 SPEED 208-230 VAC 7.5 X 1/2 X 8.5

 GE 1/4 HP SPLIT CAPACITOR MOTOR 1075 RPM 2 SPEED 48 FRAME 230 VAC 1/2" SHAFT

SVF FCI SANITARY VALVE 1-1/2" 1500 STAINLESS BALL VALVE SANITARY TRI-CLAMP

OMRON SYSMAC C20 I/O IT EXPANISON MODULE 3G2C7-MC22C

SIEMENS VSM-1 500-892065 CERBERUS PYROTRONICS VOICE SWITCH MODULE

DM SSIEMENS VSM-1 500-892065 CERBERUS PYROTRONICS VOICE SWITCH MODULE

 SIEMENS SIMATIC S7 IM CONNECTING CABLE 6ES7468-1BB50-0AA0

 LJ ENGINEERING 820166 TERMINAL BOARD 625165

 AGIE STB-26A SIGNAL TERMINAL BLOCK BOARD 625.212.6

 IFM EFECTOR 100 IIT002 IFM EFECTOR IIK-ARKA/M/V4A/LS104-AK PROX SENSOR

 ORILIGHTS 200W REPLACEMENT PROJECTOR BULB W/ HOUSING FOR EPSON ELPLP78

ALLEN BRADLEY 1734-IE4C ANALOG INPUT  FW 3.004 WITH 1734-RTB  1734-MB

 BECKHOFF POWER SUPPLY IT TERMINAL FOR THE E-BUS 24 VDC EL9400

 HERAEUS DIRECT PHOTO CELL ASSEMBLY KIT 255063

 MAC 0.76 WATTS SOLENOID VALVE 60 PSI MAX 24 VDC PME-A81PA

  MAC 0.76 WATTS SOLENOID VALVE 60 PSI MAX 24 VDC PME-A81PA

  REPCO SIZE 1 CONTACT KIT 4 POLE 9114CV 25-106-921-812 K-C1

TOSHIBA 2 HP TRANSISTOR INVERTER DRIVE 3Ø 500 VAC 3.1 KVA VFS9-4015PL-WN

DM STOSHIBA 2 HP TRANSISTOR INVERTER DRIVE 3Ø 500 VAC 3.1 KVA VFS9-4015PL-WN

 PARKER VALVE HNVS4FF-GR MODEL A1 1/4" NPT 316SS PTFE 260 C 500 MAX

  TACO CARTRIDGE ASSEMBLY 007-016RP

 ALLEN BRADLEY 25 AMP REVERSING STARTER 24V COIL 100-C09*10 W/ CONTACT BLOCK

 CMC TORQUE SYSTEMS CMC C25-0305-001 SERVO ENCODER EXTERNAL RESOLVER ASSY

 (DM SSIMONDS 10" FLAT SMOOTH FILE 73-235000

FLOJET H5750020 SANTO PUMP ASSY 1/2" PORTS 1/4" CO2 OR DRY AIR 20-90 PSI

  NULLMATIC 1/2" PRESSURE REGULATOR 0-30 PSI 42-30

NYAD HYGROMETER DEWPOINT MOISTURE ANALYZER MODEL 150

  TPC 20-150 PSI SOLENOID VALVE 5 3/4" PORTS UDS 6140 / UDS6140-3DZ-06

 LAU F10508G FAN BLADE 2630 50 CCWI 4 BLADE 6127710001PB X38010476010

ROSEMOT INLINE MANIF VALVE C30610-1126-0000

 DAIDO 10' ROLLER CHAIN 240 LINKS 40LD

 TSUBAKI GSPEC 80-1 ROLLER CHAIN RIVETED RS 80 RIV. 120 LINKS 1" PITCH

 BOSE CONTROLSPACE CC-64 CONTROL CENTER 15-24 VDC 300mA

ROBOLUX ROBO VALVE 4 WAY ACTUATOR VALVE 10 BAR MAX 6 BAR MIN MODEL RV 50

LIQUID METRONICS A111-95S METERING PUMP 115 VAC 1.2 AMP 24 GPD MAX 80 PSI MAX

 STANDARD SAFETY STASAFE GRALITE GARMENT FLO SHOULDER MOT HOOD 00765970006

  FOXBORO C-136-UM ELECTRONIC MODULE 120 VAC C0136UM

BR AUTOMATION 7AF104.7 ANALOG INTERFACE MODULE AF104 W/ 7AI774.70

EFI LINEMASTER PM120 TRANSIENT VOLTAGE SURGE SUPPRESSOR PM120/208Y W/ ELEC

 MARTIN CHB2206H-O SLEEVE HANGER

 EDWARDS AUDIO SOURCE IT W/ MICROPHAND MOT 3-ASU

 GEFEN DVI 3500HD EXTENDER W/ SENDER DVI-3500HDS  RECEIVER DVI-3500HDR

DELCO 1/2 HP AC MOTOR 56 FR 3515 RPM 208-220/440 VAC 3Ø 1.0 SF 2J7224--Z

 BRASCH MASTER SCR POWER CONTROLLER 480 VAC MAX SINGLE PHASE BER-480M1

ALLEN BRADLEY SIZE 1 MOTOR STARTER 3Ø 10 HP 600 VAC 3 POLE 120V COIL 509-BOD-7C

 WESCO 2" NPT SELF CLOSING GATE VALVE 272034

NORTON DOOR CONTROL 1601BFXBR DOOR CLOSER, DARK BRONZE, TOP FRAME

 BREWER MACHINE  GEAR TM44 TENSIONER

  NULLMATIC 50M MOORE 14281-106S1 PNEUMATIC CONTROLLER TRANSMITTER

AH ARROW HART 1-64 CONTACTOR 60 CY 110-120V COIL 3Ø 25 HP 600V RA-232-U - FLAW

  NELSON TH-725 EXPLOSION PROOF TEMPERATURE CONTROLLER 0-250ºF 277 VAC

 ALLEN BRADLEY 800H-NP14 CONTROL HAZARDOUS LOCATION W/ CROUSE HINDS  3/4"

 BONNEY FORGE 1/2" 300 FORGED STEEL GATE VALVE LE 18L-NACE-LE

 HONEYWELL 1/2" SOLENOID VALVE 2 PSI MAX 110/120 VAC 0.160A V4295A1015

 FAFNIR CAST IRON PILLOW BLOCK BEARING 2-BOLT BASE 1-7/16" BORE RSAO 1-7/16

 BRAY 2" BUTTERFLY VALVE WITH HANDLE CRN:OC-288 ITEM 10 TRIM 31/119

 WILEN 19" TAMPICO ROTARY BRUSH SHOWER FEED BLOCK P10501900

 FLUKE RAYTEK THERMALERT GP RAYGPC 2469926 TEMPERATURE CONTROL PANEL METER

 CUTLER HAMMER SIZE 1 REVERSING MOTOR STARTER 120 VAC COIL 27 AMP A10CNM0

 ROSEMOT 1151DP3E12B1 PRESSURE TRANSMITTER 2000 PSI 45VDC 1151 DP 3E12B1

LOVEJOY L-225 STEEL COUPLING HUB 1.875" BORE 1-7/8"

LOVEJOY L-225 STEEL COUPLING HUB 1.500" BORE 1-1/2"

 LOVEJOY FLEXIBLE SLEEVE COUPLING INSERT 8H SLEEVE 3KZ64

 2 5/8" PLUG VALVE 2-3465

ACCU-SORT 24 DRX LONG RANGE LAARCODE SCANNER 24I INSTALL SOFTWARE

 FASCO 1/2 HP PERMANENT SPLIT CAPACITOR AC MOTOR 460V 1075 RPM 1 PHASE

MERRICK BMKA26738-1 CIRCUIT BOARD

 ANSI 150LB 4 HOLE FLANGE DN80

WESTINGHOUSE HEAVY DUTY SAFETY SWITCH 60 AMP 600 VAC HU362

  CARGO CONTROL 4" x 30' YELLOW RATCHET STRAP W/ FLAT HOOKS 8530FH

  SHURJOINT 8" GROOVED RIGID COUPLING 348 PSI 100ºF TEMP MODEL Z05

 SQUARE D 31102-514-50 OVERLOAD CONTACT IT SIZE 5 TYPE S

 ALLEN BRADLEY 1794-IA16/A FLEX I/O INPUT MODULE 120 VAC REV. A01 1794-IA16

 GENERAL ELECTRIC GE PAC SYSTEMS RX3i CEP IC695CEP001-AAAF 24VDC 700mA

  DAMAN 1/2" ALUMINUM SIDE PORTED SUBPLATE W/O RELIEF 3000 PSI AD03SPS8S

  ALLEN BRADLEY 1 METER LONG 40 POINT INTERFACE WIRING CABLE 1492-CABLE10H

DM S  ALLEN BRADLEY 1 METER LONG 40 POINT INTERFACE WIRING CABLE 1492-CABLE10H

 ALLEN BRADLEY ETHERNET IP COMMICATIONS BRIDGE 1756-ENBT  CAT S01 F 3.9

1 ALLEN BRADLEY ETHERNET IP COMMICATIONS BRIDGE 1756-ENBT  CAT S01 F 3.9

  SXP-1000 BI-DIRECTIONAL CONVERTER BUFFER 9 VDC 200mA ADAPTOR CV-IV

  MOORE NULLMATIC 1/8" PRESSURE REGULATOR 41N15

SCHNEIDER 170INT11000 COMMICATION ADAPTER W/ 170AAI03000 ANALOG INPUT BASE

SPRECHER SCHUH 600 V REVERSING MOTOR STARTER 240 V COIL 25 AMP 3∅ 3 POLE CA3-9

 TELMAR 800161 THERMOCOUPLE SENSOR ASSY TYPE K NEMA 4 ENCLOSURE

  DAYTON SPEEDAIRE 1A209B 3/8" 4-WAY 120VAC SOLENOID VALVE COIL 35-150 PSIG

 SNEN NY40-J45 STSET DIA RANGE 4 TO 5.6" HONES AN-112, 815, 600, 250

YALE ETN 1/2 TON TROLLEY 2-1/4" TO 5" BEAM FLANGE 1/2 TON, 1000 LBS

 Power Stop Front Driver Or Passenger Side Disc Brake JBR1558

YORK HITACHI DCCI CENTRAL CLIMITE CONTROLLER 120VAC

  REXROTH Z2FSK 6-2-11/2QV HYDRAULIC THROTTLE CHECK VALVE

 MAC 55B-11-PI-501JD SOLENOID VALVE W/ PID-501JM 24 VDC 30-150 PSI 6 WATTS