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

45116 PLUNGER ROD FOR 3535, 3541, 3545, AND 3547C CAT PUMPS

JH-PWLS-300-2 POWER WINDOW LIFT SUB CANTROLLER MADE IN KOREA

215-159 TRUNION BRAKE INGERSOLL RAND

81788 DIE FOR PIPE HANDLER NOV VARCO PH-85

94404-30140 TILT CYLINDER SEAL KIT 9440430140 CATERPILLAR

SKB-1.25 SCHROEDER MAGNETIC SUCTION SEPARATOR

40581 SEAL KIT FOR 40581 PILOT PUMP MODEL SEATRAX S10832, S/N:4459  4460

SPC ELECTRONICS EAM-C-360A C-BAND LNA LF LOW NOISE AMPLIFIER

MAV/S MANIFS SUN HYDRAULICS MAV/S IEZ0-K1

INGERSOLL RAND DISC 12012 LOT OF 6

TB4172SK REPAIR KIT SEATRAX CRANE

487153166 ELECTROLUX LAUNDRY HEATING ELEMENT

KU3375 PISTON RING INGERSOLL RAND KU-337

31404 SPRING VARCO LATCH LOCK SLX ELEVATOR

AP130241-102 FTS GLIDE CABLE

08133 TRIGGER FOR STANLEY IW16 HYDRAULIC IMPACT WRENCH 8133

S4381 JET SPRAY DISPENSER PUSH HANDLE ASSEMBLY

WVFX DANFOSS PRESSURE OPERATED WATER VALVE

3LD2504-0TK53 SIEMENS CONTROL SWITCHES 3LD25

LEGRAND 44262 ELECTRIC TRANSFORMER RS 535-7799 50/60HZ 53VA/86VA UL63VA

JM-70009-TSS PARKER SEAL

4" BUSHING C26AA MAKE BRANDET LOT OF 16

154F2672 DG-RF 288 KIT POCHETTE DE JOINTS 154F2672DGRF288 REGGIANA RIDUTTORI

PC05500000 POWER COUPLER QL 55W TWIST BASE

07-3363-1820 PUSH BUTTON MAKE: BARTEC

LB19 EATON 1/2" CONDUIT BODY

3P-0655 SEAL ORING CATERPILLAR 3P0655 LOT OF 15

XCK-M1H29 TELEMECANIQUE LIMIT SWITCHES

65965 BRADY CORPORATION CIRCUIT BREAKER LOCK-OUT LOT OF 12 PCS

111685-01 SACOMO RETENTOR SEAL PARKER P/NO. 4515A3157 2

K6U-519 INGERSOLL RAND CRANK PIN SLEEVE K6U519

OC-G01-P1-20 NACHI CHECK MODULAR VALVE

COMPAIR 98262.1062 SUCTION FILTER ELEMENT

SS800L-K587 CLUTCH JAW KIT INGERSOLL RAND

7291 REXROTH FD:05W06 MNR 3712052000

08139 STANLEY REVERSING SPOOL

K5B5075 INGERSOLL RAND HEAD GASKET K5B-507-5  SET (EACH SET 5PCS)

7500100 DROPSAFE SAFETY NET 30KG (66 LBS) FOR OVERHEAD FIXTURES

7500670 DROPSAFE SAFETY NET 30KG (66 LBS) FOR OVERHEAD FIXTURES

2001316B CIRCUIT CARD FEDERAL SIGNAL 12-48VDC ( )

T11E30 WATER PUMP MECHANICAL SEAL 30 MM GLINAR

207730 REPAIR KIT FOR GRACO AIR MOTOR

2250-0100 REPAIR KIT AIR HYDRAULIC PRESSURE SWITCH

714-2520 SEAL KIT 5K714-2520 LOT OF 8

921999 PARKER 10C HYDRAULIC FILTER

OFITE FILTER PAPER WHATMAN50 90MM 100/ 3 1/2 IN DIA

3144007 REPAIR KIT FMC CHIKSAN 2Q06 LOT OF 6

S82-4C4C-5, 82 SERIES GAS IN-LINE FILTER MAKE 3B FILTERS

H-4B02-33-1.75-P4 CYLINDER SEAL KIT

487-1165 FILTER REGULATOR RS COMPONE

702900 GREER BLADDER REPLACEMENT KIT

116232 SPACER 45 X 49 X 9 NOV - VARCO

SLOAN DO-32-AAN HANDLE REPAIR KIT (FOR SACK ASSEMBLY  STEM) DO32AAN

141424 WATER LEVEL PROBE MAKE GROEN

7815057 MAGNETIC PLUG 1" DRAIN PLUG MAKE NOV

Z871470042 ROBERTSHAW B10 THERMOSTAT

RM1A48D75LP40 CARLO GAVAZZI SOLID STATE RELAYS

4130825807 GAUGE HATLAPA EN 837-1 OIL FILLED PRESSURE GAUGE KL1.6

6597-0338-10 WASHPIPE PACKING

R5H-42 VANE INGERSOLL RAND R5H42 LOT OF 10 PCS

DANFOSS EKE1A-080G5300 SUPERHEAT CONTROLLER ( )

EAO 02-061-001 IC SERIES INDICATING LIGHT LED LAMP HER , 60V/1.2W

K6U-469 DRUM THRUST PLATE INGERSOLL RAND

VG64 SUPCO DIGITAL VACUUM GAUGE

 VG64 SUPCO DIGITAL VACUUM GAUGE

60136 NATIONAL OILWELL ASSY PCB 60137

43.41.7.012.2000 GENERAL PURPOSE RELAY,12V,10A,250V 0

12-501-322 MICO BEARING REPAIR KIT STANDARD MODEL- 13-597-008

12550-001 RECEIVER REPLACEMENT KIT GAI TRONICS

CR20-W LEVITON 20-AMP, 125-VOLT, NARROW BODY DUPLEX RECEPTACLE LOT OF 9

3P-0650 SEAL CATERPILLAR 3P0650 LOT OF 18

110661 TEMPERATURE GAUGE DIAL FACE -50 TO 300 GEGREES 4" STEM 1/2" NPT MOUNT

HS-6000J5 HANDSET VHF RADIO TELEPHPRODUCT CODE 5UMBL0003 BRAND JRC

2110284 REV C PIN CYLINDER FOR 1625-UDBE DISC BRAKE NATIONAL OILWELL VARCO

190142 MILLER FIELD SENSOR REPLACEMENT KIT 267389

K6U-519 INGERSOLL RAND CRANK PIN SLEEVE

VTC3031-2 MIDI TURTLE VACUUM PUMP VMECA

INGERSOLL RAND 71053730 SPRING LOT OF 12

CROUZET PB-4R BOARD ASSEMBLED IN MEXICO

GC-70 SPRAGUE DEVICES INC GC-70-1

RS125 AISI316 ROXTEC RS SEAL (CONDATION AS PER PHOTO)

HONEYWELL 902VB1-PG LIMIT SWITCHES ENCLOSED BASIC SWITCH

QOSK11 O-RING SEAL KIT LOT OF 8 O-RING

KM40 KENNAMETAL TK1876801 SHANK TOOLS

CYL 20 X 100/ER 16 REGO-FIX TOOL HER

00-344635-00006 VULCAN HART THERMOSTAT CONTROL 200-450F (SP-463-36)

DANFOSS MBT 5250 TEMPERATURE SENSOR GEA 0005-1534-400

3NA1021 SIEMENS FUSE. 500V 100 AMP

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

0444234300 MITSUBISHI DIESEL ENGINE TEMPERATURE SENSOR

8UC7313-1BB30 SIEMENS DOOR COUPLING ROTARY MECHANISM

XSD-A600519 TELEMECANIQUE PROXIMITY SWITCH

KVA-21033N2-7DF1 SOLENOID VALVE KV GLOBAL COMP AIR

HU-338-5 PISTON RING SET INGERSOLL RAND HU3385

31402621 PISTON RING HAMWORTHY 2TF54 MKV LOT OF 6 RING

07986 STANLEY RELIEF SEAT

R X6H62V6D12 MECHANICAL SEAL TYPE3 CALPEDA PUMP SHAFT SEAL REPLACEMENT

SEAL KIT FOR A2V225HM

MF34 SILENCER DEKEN POWER 714-541-4373

T-240004-D BENDIX QUICK RELEASE VALVE T240005-F

F626811 CANON GENUINE FAX BOARD ASSEMBLY

1S-4295 TURBOCHARGER GASKET (1.92MM THICK) CATERPILLAR 1S4295 LOT OF 12

LALIZAS THERMAL PROTECTIVE AID ALUSAFE-T L.S.A CODE SOLAS

56211002 ALFA LAVAL COMPOSITE SPRING

EKE1A - 080G5300 DANFOSS SUPERHEAT CONTROLLER ( )

DRK345 REMOVAL TOOL  /

NATIONAL OIL WELL VARCO – 661007009 – PACKING SET MISSON PUMP

MTL-3043 MEASUREMENT TECHNOLOGY LTD

63PHW-230597F/GA2 SEAL KIT CEPAC SM 230597F/GA2-SK AIR POWER  HYDRAULICS LTD

P055-100 INSERT SYNCLINCAL REINFORCED FOR MARVEL OIL

R35 RING GASKET 316 STAINLESS STEEL GON PETRO

07-3363-1830 PUSH BUTTON MAKE: BARTEC

CB19411-08 SEAL POLYPAK 5/8 IN ID CLOVER TOOL CO. LOT OF 15

XS612B1MAU20 - TELEMECANIQUE PROXIMITY SENSORS

F92B HYDRAULIK BRATTVAAG ASSY 112-118

MD TOTCO E325-30 DIAPHRAGM MARTIN DECKER E325 SERIES

8N452 GASKET CATERPILLAR LOT OF 16

F92B HYDRAULIK BRATTVAAG ASSY 112-118 PACKING POS 4

129.030.020 KREMLIN AIR VALVE ASSY SX GUN (ITEMS AS PER PHOTO)

PARKER 108894-B60 BODY SEAL KIT CB602HL001

97172 BITRON GEAR MOTOR 14W 230V 50HZ

EATON TMCX0751 CABLE GLAND CONNECTOR

1A-0744 VALVE ROCKER ADJUSTMENT SCREW CATERPILLAR 1A0744 LOT OF 8

13-04484-00 KIT SPNR DETER POS B 8480-7874 LOT OF 13

1002012 LOW LEVEL ALARM RELAY CABLE

9001026 TOOL SPOOL INSRT 1-1/2" SPM VALVE

30172475-28-24 GARLOCK BUSHING FOR NOV ST-80 ROUGHNECK

PARKER 108894-R25 ROD SEAL KIT

95704 PIN ACTUATOR ARM PIVOT (DWG 117322) VARCO PIPE HANDLER IBOP  PIN

PSMM-R3D1H MAGNETIC PROXIMITY SWITCH

487197676 ELECTROLUX LAUNDRY FAN WHEEL