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

382-31614 PIN BRAKE INGERSOLL RAND FA5I AIR WINCH LOT OF 6

ED0189B ABB OIL CONTROL SYSTEM POWER 18-31.2V DC

2091081509 STEAM RELIEF VALVE POWER CHOKES

2P26726 IMPACT TOOL MFG WEIR SPM

00-289091-00001 HOBART REPAIR KIT, 3/4" PRESSURE REGULATING VALVE

690376 CAMERON LEAD IMPRESSION SLUG LOT OF 12

307035-06-99 REPAIR KIT VALVE PANEL 4WAY

W71 ALLEN-BRADLEY HEATER ELEMENT LOT OF 10

KPM161B MEGACON EARTH FAULT GUARD

EFKF12Q APPLETON EFKF12Q 04/10M EXPLOSIONPROOF SWITCH

PD3012 NISHISHIBA SILICON RECTIFIER FB30B4B120U157

EV-25A2 DELTROL FLUID PRODUCTS QUICK EXHAUST VALVE

800T-PS16 R ALLEN BRADLEY PILOT LIGHT

4N-4044 CATERPILLAR GASKET 4N4044 0504024711

PMHG152A1 GE MICRO SWITCH LOT OF 10

1720-0299 DTL TECHNOLOGIES REPAIR KIT FOR 3/4" SPM VALVE WITH LONG SPACER

1701-3 WATERMAN HYDRAULICS LINE FILTER 3000PSI

07PP100-05NNP FILTER 100 MICRON 1031211

J024951-107 STEM VALVE DEMCO J024951107

06-038-208 PIN BRAKE FOR NOV A1100-PT DRAWWORKS

PERMA CLASSIC 120 LUBRICATION SYSTEM ART NO.100063 | CL-2049-174431

SHINYBOW SB-5440BNC 8 X 1 COMPOSITE VIDEO (BNC) SWITCHER

M410900P KIT MALLORY TIMER-15MIN-60HZ M481

112114 CYLINDER LINER DAIKIN 4C752

CWR101600-102 CABLE ASSY C010ES OR PSPCWR101600-102 BLACK SIZE 6.20M

NBB10-30GM60-AR-Y94348 PEPPERL  FUCHS PROXIMITY SENSOR

51873 OIL SEAL FOR AIR HOIST MODEL FA5 INGERSOLL RAND 03980927

5937500 MECHANICAL SEAL 5937503

19320A000K VALVE SEAT MYERS PUMP

12819 SINTERED METAL INSERT BAU12819 BAUER LOT OF 6

1250495 FILTER ELEMENT ROLLS ROYCE RRM000246709

NHDFSE0400 FILTER N  A FILTER

214447 SHAFFER REPAIR KIT FOR VALVE 4-2673-1

MONARCH INSTRUMENT 6125-010 PLT200 POCKET LASER TACHOMETER

KOOMY STUFFING  THROAT BUSHING 3003-1131

K6U-412 INGERSOLL RAND THROTTLE SPRING

KC70048 REPAIR KIT BARKSDALE AIR VALVE

118844-48-48 BUSHING SLEEVE 3 X 3 FIBERGLIDE FOR VARCO ST-80 ROUGHNECK

PEPPERLFUCHS AUTOMATION RC15-14-N0 INDUCTIVE PROXIMITY SENSOR Y37319

6001625 HYDRAULIC FILTER ASSEMBLY

16401-2 VARCO BJ TONG DIES FOR HT100 TONG

16218 VANE ROTOR SET NORBAR TORQUE TOOLS (1 SET 6 VANE)  SET

30172475-32-18 BUSHING FOR NOV VARCO ST-80 ROUGHNECK LOT OF 8

HU-514A WRIST PIN INGERSOLL RAND

10004447 CYLINDER LINER O'RING

WP000059 RING INTERMEDIATE FOR TOP DRIVE

2038177 SEAL KIT FOR GRABS TOP DRIVE CYLINDER NOV

G14-263 MECHANICAL SEAL ROPER PUMP

8F302 SEAL FOR SWING BRAKE CYLINDER 611A-002301 GREENE TWEED  CO

65636106 PLUNGER, 5/8" FOR PUMP HP350  MADE IN USA

K6U-KRING SET FOR INGERSOLL RAND WINCH (6 OIL RING 6 COMPRESSION RING)

SS-63TF8 SWAGELOK BALL VALVE, 12-INCH

 SS-63TF8 SWAGELOK BALL VALVE, 12-INCH

PXV-F14 PARKER PNEUMATIC VISUAL INDICATOR 8 BAR MADE IN FRANCE

FMC WECO 3228987 MODEL 22 WECO 3" BUTTERFLY VALVE

1710-3199 REPAIR KIT 3/4" SHUTTLE VALVE KOOMY

788-538 WAGO RELAY MODULE

8223A22 ASCO SOLENOID VALVE

5F6R FLOT VALVE METAL REPAIR KIT

ZIEHL NU125D DREHZAHLWAECHTER SPEED CONTROLLER ( )

65321 OVERSIZED BREAKER LOCKOUT Y3125933 LOT OF 6

V VVGT4 VICTAULIC GASKET VICTAULIC 4IN LOT OF 7

307-61-11150 NYLON HEEL KOMATSU

FP-424C DETCON GAS MONITORING SYSTEM

TERASAKI CDY 4B-204M CONTROL SWITCH

TERASAKI CDY 4B-104M CONTROL SWITCH

HONEYWELL H2S ZAREBA SENSEPOINT H2S GAS SENSOR

B3701A GLAND ASSY BOLT FOR MCM 250 CENTRIFUGAL PUMP NOV P/N. 601102494 LOT OF 10

IN0117 IFM EFECTOR INDUCTIVE SENSOR 4MM NONFLUSH

INGERSOLL RAND 71062582 FA5 BRAKE SHAFT

JNE 203B JRCS PCB CARD MADE IN JAPAN

10050110H MURPHY SWICHGAGE 20T-250-55-1/2 TEMPERATURE SWICHGAGE

4C6499 DRECO BOOM HOIST CYLINDER SEAL KIT 961275-23

40123130 SHOCKET SANDLINE ROPE 1.62" MD TOTCO

INX2058G COOPER CROUSE-HINDS PAULUHN EATON CORPORATION GREEN GLOBE

E10021A CHECK VALVE MD TOTCO E80 LOADCELL

29700006 Kit 6" 1/2 DSPT NON PACE PS-015 LOT OF 7

KTI/RAL00028 INVOLUTE SPLINED COUPLINGS WITH NYLON SAFETY 25482

1S-3267 PLUNGER CATERPILLAR 1S3267

36792307 DOOSAN CHECK VALVE

29465061 HOBART TIMER ASSEMBLY

62090166 MARTIN - PCBA HALLSENSOR M350 LOT OF 6

189-5746 CATERPILLAR SPEED SENSOR 1895746

A3LB2127 PARKER SKINNER SOLENOID VALVE

GILMORE 25413 RK 1" 3K SHUTTLE VALVE REPAIR KIT

8234958 POWERRAIL BUSHING ELECTRO-MOTIVE CENTER BONDED JOINT EMD 0 PCS

71107726 SEAL INGERSOLL RAND

0501-2616-20 WESTCODE N540CH18L00 SEMICONDUCTOR POWEREX 1800V 1715AMP

82810310 CROUZET MOTOR 3000 RPM 24V DC

LP3S STREAM LINE FEDERAL SIGNAL 12-48VDC SERIES B GREEN TYPE 4X

067B2792 ORIFICE FOR EXPANSION VALVE KIT

7113-023-ONO PARKER SEAL KIT

ENTEL CMP750 SUBMERSIBLE SPEAKER MICROPHONE

636077 ARO HIGH PRESSURE GREASE BOOSTER HANDLE SWIVEL INGERSOLL RAND

FP-524C LEL SENSOR HOUSING ASSY , FOR CH4 DETCON P/N: 612-820000-000 LOT 2

3RB2026-1SB0 SIEMENS OVERLOAD RELAY

212841-H KIT REPAIR 3 WAY VALVE FOR SHAFFER COMPE

111685-01 SACOMO RETENTOR SEAL PARKER P/NO. 4515A3157 0

204123 FLOWSERVE 3/4" MIALL VALVES REPAIR KIT

23514970 PISTON RING SET FOR IL71 AND V71 DETROIT DIESEL ENGINES  SET

625.9997 HUBA CANTROL MECHANICAL PRESSURE SWITCH 625

VICTAULIC CAP STYLE 60, 2IN NOV BRANDET 42A NOV BRANDT

AURAND 23M M SERIES CUTTER BUNDLES (SET OF 2)

TMCX0751 EATON 3/4" CABLE GLAND CONNECTOR

FFT HSGK WIRE 1 1/2" NPT BREATHER

H7202, 2 FT. ENERPAC HIGH PRESSURE HOSE 10000PSI 3/8" NPTF ENDS

H7202, 2 FT. ENERPAC HIGH PRESSURE HOSE 10000PSI 3/8" NPTF ENDS

F9328QM-02 YOKOGAWA YEWFLO PCB CARD

A64 ENERPAC MANIFS OPERATING PRESSURE OF 10,000 PSI MADE IN USA

14694-39 ROTOR BLADE FOR VARCO SSW40 PIPE SPINNER 4

110302002 JOVEN THERMOSTAT LOT OF 8

20-137A RAM ROPE DRUM SMALL SEAL

14.0330.0 MAN BW REVISION:1.7 PCB ASSEMBLY TERMINAL  0121E

MARPAC 7-0844 FUEL WATER SEPARATOR FILTER - PARKER

EXIDOR 297 PUSH PAD PANIC LATCH

761069216 GEORG FISCHER INSTAFLEX 90° ELBOW LOT OF 12

8237900 LOWER ROD BEARING ELECTRO-MOTIVE EMD MIBA USA (AS PER PHOTO)

EL178 3KW HEATING ELEMENT

487225615 ELECTROLUX LAUNDRY FAN WHEEL

69489-001 GAI-TRONICS 69489-001 TERMINAL PCB ASSY

3110871 FMC KIT CHIKSON PACKING 4"

30215891 VALVE PLATE INGERSOLL RAND

8L-8227 SEAL CATERPILLAR 8L8227

MD TOTCO E273-40 LOAD CELL DIAPHRAGM WEIGHT INDICATOR

160900010 PISTON HI FORCE HYDRAULICS TOOLS

8305815 SEAL ORING ELECTRO-MOTIVE EMD 80

118035 BALANCED SPRING 120-180 PSI VALVE WM607C

859-304 WEGO RELAY MODULE /TERMINAL BLOCK

RVT075EP-PV PRESSURE RELIEF VALVE PLAST-O-MATIC

MC2W3A MEGACON RELAY

IAS-10-A22-S RECHNER 102400 INDUCTIVE SENSORS

ALPHA C-83DA PNEUMATIC ACTUATORS (NO.22)ORING PISTON 0