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

L7020363 CUTTING TOOLS 56B193R02

CN495-1011100-9183-1 FORUM PACKING SET FOR 2 1/16" MANUAL CHOCK VALVE

GE BCLL11 AUXILIARY CONTACT BLOCK

011548603 ENTRELEC TERMINAL BLOCK 0

BZ-RW80-A2 MICRO SWITCH

C320-KB1 CUTLER HAMMER AUXILIARY CONTACT

GUNNEBO G-16-8 8T CONNECTING LINK CLASSIC Z279634

MOTOROLA HTN9000D REPLACEMENT CHARGER

APPLETON 25A2F1RA532 CMP 3/4" NPT NICKEL PLATED

69036 SPECIFIC EQUIPMENT INTERCONNECTOR 1Z115740000

396-2119 EPIC CONNECTOR SET 4 WAY

12-32-60C BONDED MICROFIBRE FILTER ELEMENTS HEADLINE FILTER LTD. LOT OF 10

ABB 1SNA610059R1500 RELAY MODULE

WASHER SPRAY TIP 25045/40060 GREEN  WHITE NOZZLE FOR HYDRACLEAN

GENERAL ELECTRIC CR305X200A AUXILIARY CONTACT

MICROPRECISION SWITCH MP100-K

ADVANTECH ADAM-6520 ETHERNET SWITCH

53939 INGERSOLL RAND FITTING ADAPTER

FALCON 531750502 BRATT PAN 266°C HIGH LIMIT SAFETY THERMOSTAT RDC700-4FAL

901032201 PTH50 ROTOR SEAL RING

DANFOSS 068-2006 ORIFICE ASSEMBLY LOT OF 7

2202500 DIAPHRAGM HONEYWELL

2203300 DIAPHRAGM HONEYWELL

H29 OVERLOAD THERMAL UNIT FURNAS ELECTRIC CO

34-172K WORLD DRYER NOZZLE ASSEMBLY

34407-02090 ALLID OILSEAL ASSY

617-3031 80DB PANEL MOUNT CONTINUOUS INTERNAL MAGNETIC BUZZER 230VAC LOT OF 6

7-023 GASKET HEAD FOR TONG TORQUE SENSOR M/D TOTCO

MT78740 SCHRACK RELAY SOCKET 11 PINS, 10 A, 250 VAC

MADISON UNIVERSAL 1FT SCSI BLACK DATA CABLE 61-3039-01 REV.B1 AWM STYLE 20276

8143441 NOS GM OIL DRAIN TRIP HOUSING SLEEVE

GM300 GUHRING 17688892 GUHRING 4719 12.020 HA-20/12.0/65.0

RS 260-066 HOUR METER 110/115V 50HZ

M2V3HM6S BURGESS LIMIT SWITCH

235-9966 MENNEKES POWERTOP IP67 YELLOW CABLE MOUNT 3P INDUSTRIAL POWER PLUG

FISHER ROSEMOUNT 3031-528-1 PCB

8253825 BEARING SHELL HALF CAMSHAFT DRIVE ELECTRO-MOTIVE EMD MIBA USA (AS PHOTO)

250A-3-10-20 AIR PILOTED VALVES HUMPHREY 250A31020

250A-3-10-20 AIR PILOTED VALVES HUMPHREY 250A31020

01.05195.0012 HAMMELMANN TAPPET 01051950012

AC990 GAST AIR MOTOR MUFFLER AC-990

AC990 GAST AIR MOTOR MUFFLER AC-990

CAT / CATERPILLAR 9U-5058 INSERT REFILL 5 PCS

24186 O'RING FOR BRAKE VALVE ASSEMBLY FOR BRADEN CH-240 WINCH 0

091-0117 PETROIT SEAL 65 DIA 21541-11-0501

2161-A93 TRIGGER INGERSOLL RAND

C6H20A19 VENT CAP INGERSOLL RAND

03274001 PARKER GASKET 3

2-5700-IG1-P10 E-T-A CIRCUIT BREAKERS

3W90937 GASKIT INGERSOLL RAND FOR AIR COMPRESSOR

1111-4105 PLUNGER 1 1/2" HKR VALVE KOOMY

D10-280 BALL INGERSOLL RAND

SEMIKRON SKD 31/16 POWER MODULES

WVFX 32-40 DANFOSS VALVE

MECMAN 348/1 PNEUMATIC VALVE REXROTH 348/331

MR72C-24 9E4 NEC CORPORATION MINIATURE RELAYS

12013 FRICTION DICS INGERSOLL RAND

PARKER PK322HLL01 - 2HL SERIES PISTON SEAL KIT FOR NOV VARCO ST-80 ROUCHNECK

TI16 DANFOSS OVERLOAD RELAYS

PK402HK001 - 2H, VH SERIES HI-LOAD PISTON SEAL KIT FOR NOV VARCO ST-80 ROUGHNECK

3393303 CUMMINS O-RING SEAL

15500002 BEARING FOR CHOKE MANIF

APN118-W IDEC MADE IN JAPAN

03-122.011 PUSHBUTTON SWITCH EAO

222205 NATIONAL OILWELL VARCO ROD END

40902791 SPARE PARTS KIT N'1 FOR ACTAIR 61B 1203364756

10BM-12 END PLATE INGERSOLL RAND

314838A BALL BEARING ROLLER BEARING

HP227-21 PUMP PISTON HI-FORCE HYDRAULIC TOOL

99-2058 CUTLER HAMMER KIT 99-2058-2 RETROFIT KIT FOR 10" BRAKE (AS PER PHOTO)

CELLO-LITE UC1 FUSE (ACL50, DCL20) LOT OF 6

FUJI FCF2-20 FUSE LOT OF 9

776872 - SHAFT SEAL KIT DANFOSS

RBU-20CR ROLLER CLEVIS FOR RIDAPTER TOOL RFJ-20 CLOVER TOOL CO.

5-66-3171-00 STEARNS VERTICAL ABOVE SPRING AND SPACER KIT  KIT

A66L-6001-0023 FIBER OPTICAL CABLE

4ZK83 SPEEDAIRE FILTER-REGULATOR: 1/4 IN NPT 80 CFM, 40 MICRON, 5 PSI TO 150 PSI

618769 HOSE ASSY EATON 1/8 IN MPT

F9024SSC FIAB ELECTRODE PERIPHERAL CLAMP FOR ECG ADULTS PACK OF 4

0W2043 DOOR KNOB-KIT FOR ZANUSSI ELECTROLUX 710W2043

4710PS-23T-B20 NMB AC AXIAL FANS

XCK-L TELEMECANIQUE LIMIT SWITCH

351-32890 THERMOSTAT MODEL 102B STEMCO

0K5532 ELECTROLUX HANDWHEEL 200MM

084B4403 TEMPERATURE SENSOR DANFOSS EKS 211 084B4403

329274 HOBART 00-329274 TANK PROBE

HKA11 RATIONAL 40.02.798P AUXILLIARY CONTACT HKA11 BENEDIKT JAGER

3924222 SOLID STATE RELAY ICG220

344-216 PIN RETAINER O-RING FOR INGERSOLL RAND IMPACTOOL 1" LOT OF 6

51300-458-B O-RING TDS-4S NOV VARCO

229583-1 HOBART BOOSTER PRESSURE GAUGE

01-240201-1 HOBART TEMPERATURE SENSOR

00-775866-00202 HOBART PRESSURE TRANSMITTER

4ZK25 SPEEDAIRE MOUNTING BRACKET

076236 295 2143-003 DOMETIC HEATING CARTRIDGE FOR CAMPER IMMERSION HEATER

S-303 SWITCH WITH CABLE MODULE

885301-1 HOBART GASKET

ER 784 ELRO-WERKE AG ER784 REGULATOR

34B-24-11403 KOMATSU SOCKET ASSEMBLY

SRS-F MITSUBISHI ELECTRIC SOLID STATE TIMER

90A452 REAR BOLT ASSY NITTO KOHKI CO. LTD

76948 ARO SPRING

M01X2066 HITACHI OIL SEAL

5115454 DETROIT DIESEL FRONT CRANKSHAFT OIL SEAL FOR 12V71

239014 GRACO SHAFT DIAPHRAGM KIT

SCHNEIDER ELECTRIC 9001SKR1U HEAD FOR SPRING RETURN PUSH BUTTON

32391 MARS TIME DELAY RELAY

92863 FILTER MADE IN USA

5.363-390.0 KARCHER SEAL COVER 53633900

00-067500-00119 HOBART O-RING 067500-00119 LOT OF 13

LT-3738 INTERLOCK SWITCH DOOR LATCH LT3738 59135-601

LEVITON 7899-W 20 AMP 125 VOLT SWITCH PLUG

4561717 FOOT SWITCH PVC 5 MA 24VDC

534 SPECTROL 534 POTENTIOMETER

B5684129 THERMAL CUTOUT AMANA MENUMASTER

RING RETAINER EXTERNAL FOR SSW 40 PIPE SPINNER VARCO 53600-156

U0813F BUNN O'MATIC SOLENOID VALVE

R X6H62V6D12 MECHANICAL SEAL TYPE3 CALPEDA PUMP SHAFT SEAL REPLACEMENT

246DSQG0 SOLENOID VALVES 2/2 WAY DIRECT ACTING "DRY ARMATURE" SOLENOID VALVE

130E405032-E METZ CONNECT RJ45 FIELD PLUG PRO

BES M12MI-NSC40B-BV03 BALLUFF INDUCTIVE PROXIMITY SENSOR

P501999 PONY ROD OIL SEAL FOR FMC BEAN M08/M12/M13 SERIES

PSDC4HK EATON HANSEN HK SERIES SOCKET DUST PLUG 55314-8 LOT OF 8

23503826 DETROIT DIESEL THERMOSTAT

200701 COUPLING FOR AUXILARY BURNER

1-9530063 ELECTRO-MOTIVE 9530063 AIR MOTOR VANE KIT INGERSOLL RAND

9101803500 WEIDMULLER CIRCUIT BREAKER

RH4B-UL AC120V IDEC RELAYS

 RH4B-UL AC120V IDEC RELAYS

MS24525-21 HONEYWELL MICRO SWITCH

ZCK-E21 TELEMECANIQUE ROLLER LEVER LIMIT SWITCH

B320B0610500 NOV VALVE BD-60 1.750