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

OMRON AE032 LN321E587H01-2 PCB CARD 100V DC

920-0001B JABSCO IMPELLER WITH SHAFT

7829-1 SPRING LATCH FOR SJL ELEVATOR VARCO BJ LOT OF 8

114668 LIGHTNIN THRUST RING

PT100 HEATING PROBE TEMPERATURE SENSOR

RLC101K1 REPAIR KIT ENERPAC

17-44124-00 CARRIER GASKET HEAD LOT OF 6

65520-95D01 FUEL TANK CAP ASSY FOR SUZUKI OUTBOARD

DK4R WEIDMULLER TERMINAL BLOCK 20030783 LOT OF 7

CONTACTOR IMO MC 18-S-10 7.5 KW, 110V 300/03/005 BRANDT VSM 300 SHALE SHAKER

PFA-91K-14 REPAIR KIT SWAGELOK

2000-0199 REPAIR KIT AIR CYLINDER

LAN TEST LT-100 TESTER OF NET FOR RJ45

9090608 ROCKER ARM SHAFT CAP EMD ELECTRO-MOTIVE

8028740 DOWEL PIN EMD ELECTRO-MOTIVE

2710697-01 LEECHEK CKRA3756205A   /

9570631 FRAME TO CRANKCASE OUTER GASKET INSIDE ELECTRO-MOTIVE EMD

51458 INGERSOL RAND O-RING SEALING DISC BRAKE ASSY

ADALET SERIES XL PILOT LIGHT TYPE CL-I-II GRPS -CDEFG-TYPE4 YELLOW 218286/218186

39454566 RADIAL SHAFT SEALS 34888 CHICAGO RAWHIDE

2ND STG PISTON RING KIT – 98477.1086

SEAL KIT FOR VALVE DB20-2-3X100 (9P) NEI (ITEM 281) BOP CRANE

D5622-005 FAN ASSEMBLY FOR OIL MIST DETECTOR MAKE KIDDE

1141-62 STAINLESS STEEL QUICK COUPLING PARKER

610238 CONNECTOR PACKER DS OUTLET

041008-07-25-62 RETAINING RING CAMERON

XB4BP42 SCHNEIDER ELECTRIC PUSHBUTTON SWITCH

438815504 GASKET W655 GABLE TO DRUM ELECTROLUX

69012-002 GAI-TRONICS HANDSET SAFETY BARRIER

E1SF15-PLS BARKSDALE E1S-F15-PLS PRESSURE SWITCH

7502 3M HALF FACEPIECE REUSABLE RESPIRATOR 7502/37082

PK322HLL01 PARKER PISTON SEAL KIT

F8513501 WASHER KIT SHELL FRONT GASKET SPEED QUEEN ALLINCE

ZCKE21 LIMIT SWITCH TELEMECANIQUE

3EB-30-11231 KOMATSU FORKLIFT BRAKE CABLE PARKING BRAKE CABLE

FS6BNCU BELDEN SNAP-N-SEAL 5

RB122 ABB RELAY 24VDC

294692 HOBART 00-294692 RINSE PROBE ASSEMBLY

3RT1024-1AL20 SIEMENS 3-POLE AUXILIARY CONTACTOR

KP-937-30 BUNN-O-MATIC 27782.0000 THERMOSTAT WITH KNOB

CJX2-3201 AC CONTACTOR HIGH SENSITIVITY

0080-01-PT-1025 SPACER RING

TB-5P 2P, 10A-15A-20A LOAD CIRCUIT BREAKER TERASAKI (10A-15A-20A)

2N7522 KIT GASKET FITS CATERPILLAR

H3CR-A OMRON SOLID-STATE TIMER  OMRON P2CF11

H3CR-A OMRON SOLID-STATE TIMER

TDV-3 OMRON TWIN TIMER MODULE RELAY

CAPCOM 97F5705 CAPACITOR 50/60HZ 370VAC 102N101 LOT OF 6

AB013 A1 XC 05/08 PROXIMITY SENSOR

51215 HASKEL SEAL KIT

PALADIN BG40.17/312110 OPERATING HOURS METER COUNTER 12-48VDC

ECOLAB 9200-2060 REV.E  GEN DC SPEED CONTROL PWB 9200-2061 REV C

CCLX90 PARKER AUTOCLAVE ENGINEERS COLLAR 9/16 LOT OF 10

6425-05-0152 Relay SCR ASSY-25KW, MODEL 58858

233N-4T FUJITSU RELAY FRL230 60Hz-100/110V,50Hz-100V

50DFS250-SL CARRIER TEMPERATURE CONTROLLER

3 1/2" BAFFLE PLATE P/N. 191702

12502-101 GAI TRONICS RECEIVER REPLACEMENT KIT 20081125

5261851 DEFLECTOR SHIELD FOR FMC TRIPLEX PUMP

3P-0647 CATERPILLAR ORING SEAL 3P0647 4

8H-9180 CATERPILLAR SEAL 8H9180 LOT OF 12

8717-2338 O RING KOOMY LOT OF 9

7T-8275 SHAFT CATERPILLAR 7T8275 LOT OF 12

6V-3736 GASKET KIT TURBO INSTALLATION CATERPILLAR 6V3736

KFD2-STC3-EX1 PEPPERLFUCHS SMART TRANSMITTER POWER SUPPLY

8060000060 ANTUNES CONTROLSPCB BOARD

CCS 604P31 PRESSURE SWITCH

OL40U3PB ABB CAM SWITCH

INGERSOLL RAND CSTG: 26949-1 POPEYE HANDLE ASSEMBLY FOR AIR TUGGER

9G-8010 SWITCH CATERPILLAR 9G8010

7602-213276 SEAL PONY ROD, DOUBLE LIP, CONTINENTAL EMSCO 6325-LUP-1

3121487 PLUG BALL RETAINER 3 XHTL STYLE LOT OF 18

HH83ZB008 CARRIER CIRCUIT BREAKER LOT OF 9

2959188/3335750 KEPNER  FLOW CHECK VALVE CONNECTOR

52149000 OIL SEAL KIT MISSION CENTRIFUGAL PUMP FORUN

WORLD WATER SYSTEMS HSSP0516 HS SIDE PANEL ASSEMBLY

3N-1372 SEAL ASSEMBLY CATERPILLAR 3N1372 LOT OF 6

BUSH FOR MUD PUMP LUBE OIL SERVICE PUMP

10416-202 MICROPHCABLE 25" GAI-TRONICS CORPORATION

ZBV-M3 SCHNEIDER ELECTRIC LIGHT BLOCK LED GREEN

D4-MC-BAT AUTOMATION DIRECT

06-114-329 PIN BRAKE BAND NOV

GE28LR11/2EDOMDC PARKER MALE STUD HIGH PRESSURE HYDRAULIC TUBE FITTINGS

ESU-16670 WALTER VALENITE INDEXABLE TOOL HER INSERT CARTRIDGE

AH3-0124 CUTTER HER OBARA KOREA

77297 ARO O'RING SERVICE KIT FOR ARO WASH PUMP 613-612

REXROTH P-49601-00018 PISTON SEAL R4330113864

314750 SOUND CARD STATAWARM ALARM MODEL 110

KTIP080R5SS10M KENNAMETAL BODY FOR INSERTABLE DRILL HEADS

AVH-1 TERASAKI COIL 120V

GDA3YT PETERS SOLENOID CONNECTOR 24V AC/DC

D-68775 KETSCH EPE HIGH PRESSURE HYDRAULIC OIL FILTER

RETAINER, TONG LINEMFG PART NO. 24529

26604 INGERSOLL RAND 71339949 VENT CAP ASSEMBLY AIR MOTOR

160900020 PISTON HI FORCE HYDRAULIC TOOLS  PCS

INGERSOLL RAND 71027387 RING SET

WABCO FLUID POWER DIVISION P57137 REPAIR KIT

1513-24 AIR RECHARGE VALVE PORTABLE SANITARY PUMPS

PMCCF HONEYWELL MICRO SWITCH MADE IN USA

SPC 40-16RF SCHUNK 471066 VERO-S SPC 40-16

DV-08-01 1/0 FLUTEC FLOW CONTROL CHECK VALVE

DV-10-01 1/0 FLUTEC FLOW CONTROL CHECK VALVE

CATERPILLAR HOSE A 9N3370

DRV-08-01 1/0 FLUTEC FLOW CONTROL CHECK VALVE

ME203 LIMIT SWITCH  /

RS232 REPEATER / EXTENDER

22170187 INGERSOLL RAND OIL SCAVENGE TUBE REPLACEMENT

M410243P ALLIANCE DRYER ASSY HANDLE  CAM

BI5-M18-AD4X INDUCTIVE SENSOR TURCK INDUSTRIAL AUTOMATION

3700041-015 SEWAGE PUMP FLAPPER ASSEMBLY

ABB ERDM425 TIME DILEY RELAY 120VAC

43004422 ASCO SOLENOID VALVE COIL 230 V AC

OHMITE RHS175E RHEOSTAT 175 OHM

AIRTAC 3V310-10-NC SOLENOID AIR VALVE

345-369 PROGRAMMABLE TIMER BASES 345-375

SQUARE D AD-7282 SHUNT TRIP

4430-0219 END PLATE UPPER ATLAS COPCO

SQUARE D 9999-D01 AUXILIARY CONTACT 9999-DO1

INGERSOLL RAND 71039333 COLLAR

QBS-0004 CLEAR XENON BEACON 110V AC

GRT50 APPLETON CONDUIT OUTLET 4WAY 1/2"

014-0006 GLASS SIGHT 1/2 INCH NPT LIR/DCC WATER CHILLER UNIT DANFOSS

51-03004 KOOMEY TRIPLEX PUMP STUFFING  GASKET LOT OF 6

GRT50 APPLETON CONDUIT OUTLET 3WAY 1/2"

A2V225 SEAL KIT A2V225HWEL

SYSTEM SENSOR A3008-00 REPLACEMENT RETARD KIT

STANLEY 16969 SEAL KIT FOR GR29 HYDRAULIC UNDERWATER GRINDER

3190702 MILLER FLUID POWER BOLTED BASE-LOK

23514970 FP DIESEL RING SET FP-23514970 (9239KX)

35147388 STEM VALVE PAC AIR COMPRESSOR

HUTHBROTHER WORM GEAR KIT COMPATIBLE WITH WHIRLPOOL 5QT6QT 9709231 REPLACEMENT