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

 HUTHBROTHER WORM GEAR KIT COMPATIBLE WITH WHIRLPOOL 5QT6QT 9709231 REPLACEMENT

GRFC75 APPLETON CONDUIT OUTLET

XB4BP42 - PUSH BUTTON SCHNEIDER ELECTRIC

O’RING VALVE COVER 3RD STAGE COMPAIR ,VITON,0793-57 – 98504.1107 LOT OF 17

O’RING LOWER COVER 1ST STAGE COMPAIR ,VITON,1893-57 – 98602.149 LOT OF 8 O'RING

O’RING 1ST STAGE CYLINDER COOLING COMPAIR ,VITON,1043-57 – 95602.132 LOT OF 6

633222 UNITOR ARC WELDING GLASS 60 X 110 MM 0 GLASS

TELEMECANIQUE XS1M18MA230 PROXIMITY SENSOR

MLP-7634 023003 WA01938 2007 TD94V-0 PCB CIRCUIT BOARD

101149 KIT ECKEL SOOL F/A35 COMMERCIAL CANTROL VALVE

35146570 SNAP RING INGERSOLL RAND PAC AIR COMPRESSOR LOT OF 6

8563 TEAMTEC SPLINE COUPLING ASSY

518478-82 BRAKE PAD ALFA LAVAL

601408891 GREASE SEAL MISSION NOV 3943-12

34B-3611280 KOMATSU FORKLIFT ROD END

GRAINGER 12G462 SOLID CORE CURRENT TRANSFORMER

4965-0018 FLOWMETER 0.2-2.5 LPM DWYER

EP-994 FLAME EYE PCB 10279

DR-60-24 MEAN WELL DIN RAIL POWER SUPPLIES 60W 24V 2.5A

HV 1005-2/1605-2 PROMINENT REPAIR KIT

IHI O RING P375 IHI NBM TYPE AUTO FILTER

K3320115 K3320120 K3320125 REPAIR KIT ARCTIC SPIRIT IHI3016

H3CR-A SOLID-STATE MULTI-FUNCTIONAL TIMERS

F0151150 DIAPHRAGM

5H-5553 CATERPILLAR SCREW 5H5553

MOTOROLA PMMN4021A REMOTE SPEAKER MICROPH

5710058P05 REPAIR KIT

HYDAC LFBNHC30IB10B10 PRESSURE FILTER COMPLETE TUGGER LFP30G10B1.0

30005004 PAD MOUNTING SPRING FOR BRANDT VSM300 SHALE SHAKER LOT OF 8

1452-1X3 CORKEN PUMP PACKING REPLACEMENT SET TEFLON D STYLE

PARKER CHECK VALVE DC-750-30

ABB S272 C2 MINIATURE CIRCUIT BREAKER

YS-1 E226490 FR-4 DISPLAY MODULE

0280130037 BOSCH TEMPERATURE SENSOR

51108EM004 RWO GMBH MARINE WATER TECHNOLOGIES SEAL KIT

E97-22 DIAPHRAGM MARTIN DECKER

BARTON CHART RECODER RED PEN 949025 LOT OF 6 PEN

RPUM1415.01R MECHANICAL SEAL

KTR ROTEX 24 COUPLING

25007570 OIL FILTER SEAL KIT HF502-20 122 AS-RP010

BY024CS DANFOSS SOLENOID COIL

12753 GARDNER DENVER DIAPHRAGM

755463 ELECTROLUX LAUNDRY TACHO SENSOR 471882601

CA2-FN 262 TELEMECANIQUE CONTROL RELAY CA2-FN 262B

CA2-FN 222 TELEMECANIQUE CONTROL RELAY CA2-FN 222

LIYY TN 1002012 LOW LEVEL ALARM RELAY WITH CABLE REV 08

BACKUP RING FOR BRAKE CYLINDER 24477 FOR BRADEN CH240 WINCH LOT OF 17

1074350 NOV MUFFLER CANTROL VALVE 1/2"

CF8M Y-STRAINER STAINLESS STEEL 1 INCH

9M-4618 SEAL ORING CATERPILLAR 9M4618 LOT OF 8

5P-6672 ROD END CATERPILLAR 5P6672

3N-3148 TUBE ASSEMBLY CATERPILLAR 3N3148

5P-5700 SEAL ORING CATERPILLAR LOT OF 8

18-10002 RETAINER SEAL FOR POD FUNCTION PORTS KOOMY LOT OF 8

32A1104010 SEAL ASSEMBLY CATERPILLAR

07-3353-1110 PUSH BUTTON MAKE: BARTEC

J016995-008 CAMERON DEMCO VALVE STEM PACKING KIT 5" 7500 PSI

944194-1 4WAY ROTARY VALVE ASN IDEC

2137014026 BOSCH CARBON BRUSH

ECHT APPLETON TWISTLOCK

6L-1649 SEAL ORING CATERPILLAR 6L1649 LOT OF 9

2P-4145 SEAL CATERPILLAR 2P4145 LOT OF 8

1H-8278 ORING CATERPILLAR 1H8278 LOT OF 10

206740 FANN LID CUP FOR MUD BALANCE MODEL 140

78595750 ELBOW DETROIT

DD104N12K EUPAC POWER BLOCK

RJS5K0 OHMITE RHEOSTAT WIREWOUND 5K OHM

E225430KB-01 PCB BOARD CDC1301 A1

71431365 CAPSCREW INGERSOLL RAND (1PACKET X 4PCS)

SEMIKRON SKVC 20A 460 VARISTOR METALOXIDE PLASTIC PACKAGE VARISTOR

BURKERT 00136112 BURKERT 6014C PLUNGER VALVE

98650-1535 GARDNER DENVER DIAPHRAGM SERVICE KIT

3TF4010-0A SIEMENS AUXILIARY CONTACT BLOCK

V943316 SEAL

W799211D004 2-9982/4 MADE IN USA OP25-LH-1.0L-1.4L

ADV-310-14-K DEVILBISS ADVANCE HD FLUID NEEDLE 1.4MM ADV-310-14-K

ASSE1016 MASCO DELTA VALVE

ASSE1016 MASCO DELTA VALVE

5K-9241 ELBOW CATERPILLAR 5K9241

3P-0651 SEAL ORING CATERPILLAR 3P0651

5H-6733 SEAL ORING CATERPILLAR 5H6733 LOT OF 8

6L-2142 BUSHING CATERPILLAR 6L2142

SIEMENS 3LD2203-0TK53 LOAD BREAK SWITCHES

9001037 C TOOL SPL INSRT F/2" NC SPM NATIONAL OILWELL VARCO

76762-1 PARKER VARCO PISTON SEAL KIT PK322HLL01

50482 BRADEN OIL SEAL 77342

BZK18C-7X5.5 BILZ CLAMPING UNIT IC

Z-15GW22-B OMRON LIMIT SWITCH

Z-15GW22-B OMRON LIMIT SWITCH

319-916 HONEYWELL PLUNGER MICRO SWITCH

229417N REPAIR KIT

800T-PS16 ALLEN-BRADLEY

33026-00002 CONNECTION PLUG FEMALE FOR AG STERLIZER JOWA

CMP PXSS2K CABLE GLAND FLAME PROOF

EM-700N FLOOR ELECTROMAGNETIC HER

129.030.020 KREMLIN AIR VALVE ASSY SX GUN 129-030-020 INLINE VALVE NIB

KOINE KH-101-2C POWER RELAY

MSYNL-12CA-4 NL8 KENNAMETAL TURNING TOOLHERS

800R-2HZ4R ALLEN-BRADLEY PUSHBUTTON CONTROL STATION

ZC-Q55 OMRON LIMIT SWITCH

ZC-Q55 OMRON LIMIT SWITCH

91198689 INGERSOLL-RAND COMPANY HEATING ELEMENT FOR DES-300 AIR DRYER

522990-80 ALFA LAVAL BOWL DISC 522990-81

SMC AW40-F04 FILTER REGULATOR

AUSCO PK.667 BEARING KIT

WEAR DOWN GAUGE KOBELCO COMPACT SEAL WEAR DOWN GAUGE

47-161541 MERCURY 4-STROKE 30 HP EFI OUTBOARD MOTOR WATER PUMP IMPELLER

PBDB-LAN PILOT OPERATED PRESSURE REDUCING VALVE PBDBLAN SUN HYDRAULICS

2133633 MILLER SPACER

SSH2-62 PARKER HYDRAULIC QUICK COUPLER, 1/4" BODY 316 STAINLESS STEEL

EFC2103904:1 DEBOOSTED REPAIR KIT 4:1 DEBOOSTED KIT H2S ELECTRO FLOW CANTROLS

P291-1004 TOTALINE UNIVERSAL CAPACITOR

10330 ORING FOR BRADEN WINCH CH-280 LOT OF 9

VDO OIL PRESS SENDER 0 TO 10 BAR

39479555 CONNECTOR INGERSOLL RAND

CN-FF-90-2-M NOVARIS COAXIAL SURGE PROTECTORS

UWD-117 BEARING TORSION END INGERSOLL RAND UWD117

PLC-BSC- 24DC21 - RELAY BASE PHOENIX CONTACT LOT OF 6

07-3323-1200 BARTEC PUSH BUTTON MODULE 0733231200

NGK 2129 B7HS-10 SPARK PLUG

1245-0205 SEAT FOR MOTOR V/V KOOMEY UNIT

424UB03 EXPLOSION PROOF CABLE GLAND 3/4”

2210-S210-P1M1-H121 THERMAL-MAGNETIC CIRCUIT BREAKER E-T-A

91249-12 O-RING WASHPIPE VARCO NOV LOT OF 12

20009573 CONSTANT TENS TABLE PRSSR VS AVG NOV

UWD112 BRAKE CRANK PIN INGERSOLL RAND

71408363 INGERSOLL RAND OIL SEAL

500220 KOEHLER-BRIGHT STAR QUICK CHARGER II BY ER

C1180606-1D PCB ELECTRONIC CARD FOR DOMETIC SAFE

C-032 LIQUID LINE  MODEL FILTER-DRIERS SPORLAN CATCH-ALL