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

NOV BAYLOR 8400 THROTTLE, DRILLERS CONTROL ON ELMAGCO ELECTRIC BRAKE

74919 MOTOR COMPOUND GEAR FOR SSW40 SPINNING WRENCH NOV

73085 ROLLER COMPOUND GEAR FOR SSW40 SPINNING WRENCH NOV

SA100 NDB PANEL SLP41800/SRP41800/SLP42000/SRP42000 SOUTHERN AVIONICS COMPANY

BAYLOR 8400 THROTTLE, DRILLERS CONTROL ON ELMAGCO ELECTRIC BRAKE NOV

HOBART 00-015391 SQUARE DRIVE FLANGE AND GEAR ASSEMBLY 53 TOOTH 15391

SS800-K3 INGERSOLL RAND CYLINDER

8700190-X ALIMAK ELEVATOR INTERLOCK GATE

223662 SEAL PISTON SEAL ASSEMBLY NOV SHAFFER AQ-5,PSTN, 19" CYL, 160K TENS

943952-12 VALVE CONTROL AIR MADE BY A VAN TILBURG

231-715 LEVER BRAKE INGERSOLL RAND

221034-002 PCBA SPECTRUM I/F SYSTEM 4 NOV M/D TOTCO

05-8211-00 GINGE DETECTOR HEAD FOR RD LOT OF 9 PCB SWITCH

14789 KIT REPAIR FOR 2 IN 15K ANSON PLUG VALVE NOV

382-35548 INGERSOLL RAND BRAKE BAND FOR FA150KGI

382-35548 INGERSOLL RAND BRAKE BAND ASSEMBLY FOR FA150KGI

2" FMC LOW TORQUE VALVE REPAIR KIT 1502 FIG P538985

PAAE065774 WARTSILA C1 POWER CARD 24 VDC

INGERSOLL RAND INLET OUTLET BLOCK

TUTHILL 2RC2F-LH ROTARY GEAR PUMP

77H90L10 INGERSOLL RAND STRAIGHT GRINDER

2250-0100 PRESSURE SWITCH-HYDRO PNEUMATIC PRESSURE SWITCH/3K PSI

 1HP GENERAL PURPOSE AC MOTORS

 1.5HP 3500RPM 56C TENV 3PH

RS350 ROXTEC AISI 316 ROUND ENTRY SEAL 244-286MM RS 350

KF090CP0 RADIAL CONTACT THIN BALL BEARING

NFC-802 JRC ANTENNA TUNER UNIT JAPAN RADIO CO. LTD.

HASKEL 51940-1 AIR PILOT SWITCH

PARG1105N TURBO II AIR HYDRAULIC PUMP ENERPAC

EFSR APPLETON EXPLOSION PROOF SWITCH TWO GANG MADE IN USA

261829-101 MD TOTCO TRANSDUCER MOORE PRODUCTS MOD 77-3

DMC-100A PEAKTRONICS INC LOT 4PCS

35252667 CHECK VALVE INGERSOLL RAND

0522-2400-21 NATIONAL OILWELL VARCO DC CONTROL MODULE

124500-101 MD TOTCO STABILIZER ASSEMBLY 2606793 FINGER 3-1/2"

B258669 INGERSOLL RAND 29301 BRAKE BAND ASSEMBLY FOR FA150LGMR 328-29303

10724 INGERSOLL RAND BRAKE BAND ASSEMBLY FOR FA2  FA2.5 WINCH

11-00307 BARKSDLE VALVE 4 WAY MANIPULATOR TYPE

ENERPAC RAC302, 30 TON CAPACITY,10000 PSI ALUMINUM HYDRAULIC CYLINDER

ENERPAC RAC306 30 TON CAPACITY ALUMINUM HYDRAULIC CYLINDER

4L11982 SPM Plug Valve Repair Kit 2" Fig 1502, 10,000 PSI

40224300-004 NOV MD TOTCO PIT LEVEL SENSOR MODEL-30 (BY ER)

P10120A-01 MD TOTCO NOV LOAD PIN, TENSION LOAD CELL P.T 40000 HYDRAULIC TONG CYL

99-10004 REPAIR KIT 1-1/2"HKR VALVE KOOMY 1111-4199

NABCO MT-800-S16 MAIN ENGINE TELEGRAPH

SHP METER JRC NDL-20A MADE IN JAPAN

75-00020 PNEUMATIC TOGGLE VALVE SHORT KOOMEY STYLE (805042)

10-600 SERIES SC HYDRAULIC PUMP

56037 REV.C PCB CARD 56038 REV F BAYLOR COMPANY

28002 VALVES

K6U-1252 CLUTCH BRAKE BAND INGERSOLL RAND K6U1252

382-29302 INGERSOLL RAND BRAKE BAND 29239 (30002286-1180)

RHS1K0E OHMITE HAND THROTTLE FOR DRAW WORKS  MUD PUMP 1kΩ

DS-740 FURUNO COMPASS SAFE DISTANCE 65P3015 FURUNO

P-QUIP 30000002 RELEASE LINK FOR EMSCO F / FA / FB / FC 1300 AND 1600 MUD PUMP

REVERSIBLE ENGINE HKC K8RS40FC

46680 PLUG 3 FIG 1502 ANSON PLUG VALVE

G2504/5 3RD STAGE UNLOADER GAS COMPRESSOR W  J TYPE 175

765B479G20 HIGH SPEED PINION GEAR FOR JACKING SYSTEMS

PARKER 03.25 BB2AU14A 5.00 SER.2A AIR CYLINDER MADE IN USA

R431008215 REXROTH QUICK RELEASE VALVE

M/D TOTCO ULTRASONIC PIT LEVEL SENSOR 222573-001

33S-CT4 CYLINDER TUBE FOR HR-33SF

30P210QHRS50NN1195 HIGH PRESSURE HYDRAULIC FILTER PARKER RACOR 30P SERIES 929081

GDB1179295 BRAKE EQUALIZER PIN ASSY NOV 641149A

ECS101183-2202 T3 ENERGY SERVICES PRESSURE TRANSMITTER RANGE 0 TO 15000 PSI

40218041-002 NOV MD TOTCO ULTRASONIC LEVEL SENSOR

Y30126 HAMWORTHY VALVE 4SW80 HIGH PSI COMPRESSOR

PRL-97004-EX 120VAC 50/60 HZ HELIDECK LIGHT

DETCON FP700 COMBUSTIBLE GAS SENSOR

PPL 81802 WARTSILA DIESEL SPEED MEASURING SYSTEM CIRCUIT BOARD

897662-005 HOBART PUMP 00-897662-00005

80600029 NOV NATIONAL OILWELL VARCO SUB ROD HYD 80600031

KHM-32-M60-3312 SS HYDAC BALL VALVE 3103883-1 MADE IN GERMANY 315 BAR

180Z0011 DANFOSS FILTER ELEMENT

40219493-002 REV A PCB MD TOTCO 219494FAB

601118359 CENTRIFUGAL MISSION PUMP SHAFT 1/18 PADISTAL

WY 6560W LIMIT SWITCH WOO YANG M  E CO. 250VAC-10A,IP-56

1600419 PCB CONTROLLER ES GROUND BOARD 2030ES JLG

B02G0000 LOAD MONITOR SLIP DETECTOR B02J0000 TECH POWER CONTROLS

VELAN PROQUIP 3'' 150CL CHECK VALVE PW10-013D10-3DB

VELAN PROQUIP 3'' 150CL CHECK VALVE 013D10-3DB

74919 MOTOR COMPOUND GEAR FOR NOV SSW40 SPINNING WRENCH

K6U-526 ROTARY VALE INGERSOLL RAND

RT 10 D4 30 VICKERS PRESSURE CONTROL VALVE RT10D430

TERASAKI ECB-2141 SENDER MODULE

EMD 8268641 CYLINDER LINER INSERT FOR EMD645 567E EMD645E1 PCS

TERASAKI ECA-804 TM MASTER UNIT  

K6U-337-6, K6U-338-6 RING SETS SUITABLE FOR INGERSOLL RAND LOT OF 108 RINGS

200D310 ROSS HILL CANTROLS CORP CIRCUIT BOARD 0509-2600-00

3021565 LIEBHERR WATER PUMP

DETCON FP700 GAS SENSOR

LS050 LSI WIRELESS ATB SWITCH TRIMBLE / LSI

MC-II CAMERON NUFLO FLOW ANALYZER MC-374273 ( )

04-00152 AIR CYLINDER ASSEMBLY 2000-3100

DU-A574 INGERSOLL RAND BRAKE BAND ASSEMBLY FOR EU  EUL AIR WINCHES

30160384 NOV LOWER DIE HER ASSY R  L 30160383 FOR ST-80 IRON ROUGHNECK

10516 CLIMAX GREASE GUN 15000 PSI

36 HEAVY-DUTY CHAIN WRENCH RIDGID 31330 , 4-1/2-INCH CHAIN WRENCH

2LC0100-6AB FLENDER STANDARD DRIVE COUPLINGS SIZE-140

201M110 VALVE HOUSING GROUP BEEBE AIR TUGGER

ECA-222 TERASAKI ELECTRIC SENDER MODULE

2 1/16 IN 10K QFC MANUAL GATE VALVE REPAIR KIT QFC-210-MGVRK

YZ280313 JOHN DEERE GEAR NOV P/N 949901-1 MADE IN USA

3003-1132 KOOMY PLUNGER 1-38 TYPE 80

RECTIFIER MAIN 66-5840 8313721

INGERSOLL RAND 22033 SEPARATOR PLATE 4

2406437-02-99 CAMERON 2406437-01-99 REPAIR KIT, DRG VALVE, 1/2" 5K PSI WP

116072 PISTON KIT RUPTURE PIN TECHNOLOGY FA12-0774

9A-100003537 NUFLO CAMERON FLOW METER

CT-3477SAY26 INTERNATIONAL LOGGING CURRENT SENSOR

77B8(M2) SIEMENS I/P TRANSDUCER BOOSTED 77B8

P516139 FMC REPAIR KIT ,ULTP010 5000 KIT .88 B REPLMNTS BNO

P516137 FMC REPAIR KIT ,ULTP010 5000 KIT .88 B REPLMNTS BNO

HE407TXT CARD PBA VIDEO OUTPUT CCTV SYSTEM

48-A81-LZ001 QUANTEM (123389-01) COMPRESSOR HIGH TEMPERATURE SHUT DOWN MODULE

C2-825 EATON VICKERS DIRECT ACTING HYDRAULIC RIGHT ANGLE CHECK VALVE

21391271 CYBERBASE FUNCTIONAL TOUCH KEYPAD NOV HYDRALIFT

300/02/010 SECONDARY SCREEN PNEUMOSEAL 300-02-010 NOV BRANDT VSM 300

063920 CIRCUIT BOARD FOR TAYLOR 063922/063928

00-976074 HOBART BEARING PILLOWBLOCK 2 BORE REXNORD LINK BELT PB22432H

ENERPAC P80 ULTIMA STEEL HYDRAULIC HAND PUMP 10000PSI

T6000 DEEPSEA POWER  LIGHT SUPER SEACAM SSC-T6000-55072008B-P

RHS1K0E OHMITE 1kΩ HAND THROTTLE FOR DRAW WORKS  MUD PUMP NOV

7805-001 GAI TRONICS HAZARDOUS AREA HANDSET SPEAKER AMPLIFIER ASSEMBLY

25567-32B21HUR 3D GAUGE NL SHAFFER 0216012 (DD567-32 HUR)

80115-001 COUPLING WARTSILA

CROWCON TCGARD 03ATEX0074 CROWCON FLAMMABLE REPLACEMENT SENSOR 96HD SENSOR

COP3X ELECTROLUX PCB CARD

SL 3003-XX/GS80/K/EEX FSG SEILLANGENGEBER ROPE LENGTH TRANSMITTER

V255 MODEL COMPRESSOR CRANKSHAFT ASSEMBLY P/N.32029282

A7054-160 BASKET GRAPPLE 5" (B2374) 150 OVERSHOT LOGAN OIL TOOLS