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

96509609 GRUNDFOS GASKET/O-RING KIT EPDM FOR CR/I/N 10/15/20

00335078 GRUNDFOS CERAMIC BEARING SERVICE KIT CR16-6

LUTRON PX-01 PROXIMITY SENSOR FOR PANEL METER DT-2240D

RG1HDL0205 KIT REPAIR ROD GLAND SEAL PARKER FLUID POWER

6AP45-E SEAL 6AP-45E MECHANICAL SEAL

800T-PS16 ALLEN-BRADLEY PILOT LIGHT ( ) LOT OF 8

141235 OTECO PRV STEM SS6110 - OTECO 1 PRV-30550 3

PM50CLA060 MITSUBISHI ELECTRIC MADE IN JAPAN

PTR-N7 MEIYO ELECTRIC THERMO-RESISTANCE BULB FOR EXHAUST GAS OF DIESEL

22519RK 1/4" SHUTTLE VALVE REPAIR KIT GILMORE

5149234 PISTON ASSEMBLY DETROIT DIESAL

86344-4 HASKEL SEAL KIT

OFITE CONDENSER FOR RETORT KIT PRODUCT CODE: 165-15-1

475458-1 VULCAN HART TEMPERATURE CONTROL, SOLID STATE 120V ( )

APPLETON ECP ECP PLUG 20A 125V 2W3P

RM20 ROXTEC MODULE WITH MULTIDIAMETER 6 PCS

RM30 ROXTEC MODULE WITH MULTIDIAMETER LOT OF 16

RM40 ROXTEC MODULE WITH MULTIDIAMETER LOT OF 9

HERNIS SCAN SYSTEMS RX289 HS089C PCB CARD

56036 BAYLOR GROUND DETECTION PRINTED CIRCUIT BOARD ( )

SPST024 GE POWERBREAK II SHUNT TRIP 24V

RS-1P-MB-02 ROYAL SERVICES SINGLE CAMERA MOTHER BOARD

10 OTECO GV GATE,72,66C,G236,SS MADE IN USA

24454 SPRING GUIDE FOR CH-240  PCS CH SERIES PLANETRY HOISTS BRADEN

S732DVT-EST2 GE SECURITY TRANSMITTER

4775R VALVE GUIDE W/BUSHING SOUTHWEST OILFIELD PRODUCTS MADE IN USA

101016 SPRING RETAINER FOR BRAKE VALVE ASSY CH-240 BRADEN HOISTS LOT OF 08

24424 SPRING RETAINER FOR BRAKE VALVE ASSY CH-240 BRADEN HOISTS LOT OF 09

309088-12-99 REPAIR KIT MAKE CAMERON

29584 SPACER FOR CH-240 BRADEN HOISTS

1-8314675 EMD SUPPRESSION RECTIFIER ELECTRO MOTIVE

8L-4171 CATERPILLAR 2 PIN STEEL LOW OUTPUT MAGNETIC SPEED SENSOR 8L4171

AC223-SK GE OIL  GAS KIT SEAL LMRP DISCONNECT VLV (EXP-4Q2028)

SPA-M4S ZENITEL STEENHANS PA MICROPHPANEL ( )

50005500-750 LIP SEAL POLYPAK 4615

EFC210390 PUMP REPAIR SEAL KIT ELECTRO-FLOW CONTROLS

EKA PART : 10  RING

22103352 REV A PCB 22103345 REV A PCB

113090-01 CAMERON RISER FEMALE RECEPTACLES LOR OF 9

NS-B029.13 NS-AIN1/2 R4B NITTAN SYSTEM PCB CARD

P5014 SEAL WEBCO REXROTH RELAY VALVE 12 WESTINGHOUSE 5

4 1/2" 4R BAFFLE PLATE SPIDER TYPE P/N. 91722

4081031090 ATLAS COPCO  SERVICE KIT EPP 10,1KIT

98504.1001 COMPAIR REAVELL O-RING ASSORTMENT KIT  KIT

17831345-001 SEAL KIT VALVE SECTIONAL NOV LOT OF 8

TC7125C SARACOM TIME CONTROLLER PCB

2934-A526 INGERSOLL RAND SPLINE DRIVE ANVIL ASSEMBLY 2934A526

58580P080029 HOSE ASSAMBLY 1/4" VARCO TDS-4H TOP DRIVE SYSTEM LOT OF 6

11031868-001 SPARE PART KIT CARTRIDGE SEAL 18-15M NXT RAM BOP NOV

36792315 DOOSAN INGERSOLL RAND PISTON ASSEMBLY

06046114 PIN TOGGLE LEVER DRAWWORKS NATIONAL OILWELL VARCO

RG2AHL0251 ROD GLAND KIT 2-1/2" PARKER 76763-1 ROD SEAL KIT

20293-HA COUPLING HUB ASSY , F/HYDRAULIC OIL COOLER SEATRAX S10832

128664 QUINCY TEMPERATURE GAUGE INDICATOR

PLC PCB BOARD 472019 REV 4 P/N 467384 H2S 50/10 GAS MONITOR

200D329 ROSS HILL CANTROLS CORP 200P330,FAB 200D331

206740 FANN LID CUP FOR MUD BALANCE MODEL 140 LOT OF 6

SKF 564155 OIL SEAL 68X90X10 LOT OF 7

SS-CVMF9-SS CHECK VALVE SPIR STAR 20000PSI

10079465 KMT TEE ASSEMBLY 66000PSI

BSP-3308-316-EP VERSA VALVE 3WAY MADE IN USA

788-538 WAGO RELAY MODULE LOT OF 6

615347-02 RING GASKIT SUBX3A3 AX-6/2, 3 1/16 INCH MFG CAMERON

HERNIS SCAN SYSTEMS RX286 HS035B PCB TERMINATION BOARD

MIKRO SWITCH 2XMIKRO/A110/M20X1,5 LIMIT SWITCH

6966-6700 RUBBER ELEMENT FOR BULK SILOS FOR AIR LINE LOT OF 14

SONCEBOZ CHART RECODER WATCH 0820 R001

TU12874 CIS SOLID STATE REVERSING TIMER BOARD

902VB1-PG HONEYWELL LIMIT SWITCHES ENCLOSED BASIC SWITCH

00-344635-00002 HOBART THERMOSTAT S-12-36 ASSY IN MEXICO

PPFK3A13SU CARTRIDGE FILTER ELEMENT 243806 P3A13SX

RG2HLTS131 KIT REPAIR ROD GLAND SEAL PARKER FLUID POWER

CB322HL005 2H, 3L, VH SERIES CYLINDER BODY KIT 3 1/4 INCH PARKER

PA-0010 GASKET NATIONAL OILWELL VARCO 3 1/16" 10000 PSI GATE VALVE

KOOMY BEAR T330 CONNECTING ROD ASSEMBLY 3002-2102

EATON BUSSMANN SERIES FNQ-R-10 FUSE LOT OF 6

031116 NOV POLYPAK SEAL LOT OF 9

PARKER 1457810000 RIGHT HYRDAULIC ACCUMULATOR CHARGING

28690 PILOT VALVE TOOL INGERSOLL RAND

M35100201 GEAR RAM  /

CAMERON 3 1/16" 15000 PSI GATE VALVE STEAM PACKING (140232-15-01-03) LOT OF 8

DU-710 BRAKE SPRING INGERSOLL RAND

PREMIUM ANNULAR CUTTER 45 MM CUTTING VACO FRANCE HARD CUT KBL 045

8135-035 SONARDYNE PCB

30031133 PLUNGER PACKING FOR BOP TRIPLEX PUMP KOOMY 3003-1133 LOT OF 7

DL1EFYS BROOK CROMPTON STATOR SERIES 2000

46105-2 SAUER DANFOSS REPAIR KIT LOT OF 7

1141-63 PARKER COUPLER 1141-62 QUICK DISCONNECT 1/4"

MR-42-7 VANE SET INGERSOLL RAND ""  PACK EACH PACK 7 PCS

601409030 GREASE SEAL 394314 MISSION FLUID LOT OF 6

725R382 SONCEBOZ 31 DAY REV CCW 13WINDING TURNS CW

636077 Z-SWIVEL  PRESSURE 10,000 PSI INGERSOLL RAND

CTX6660 PARKER AUTOCLAVE TEE 20000PSI

NORRIS 5" BUTTERFLY VALVE R1011-13AA-1J

325-60080-25 EMERSON THERMAL EXPANSION VALVE

K6U-509 CONNECTING ROD FOR K6U OR K6UA RAM WINCH

FR1000 ESAB FLASHBACK ARRESTOR (FUEL GAS) RESETTABLE

PRS-1/4-6-B FESTO MANIF BLOCK

7602-213276 SEAL PONY ROD, DOUBLE LIP, CONTINENTAL EMSCO LOT OF 6

HYDRATIGHT SWEENEY 2864 SERIES MANUAL CRANK OVER TOOL

1510-1100 SHUT VALVE 1/2" EHL

31948/M2 NOV MISSION CASING FOR 3" POP VALVE

51242N GRAYLOC SEAL RING SIZE 52

7602-1070-04 CONTINENTAL EMSCO HOUSING FILTER 3/4" NPT FEMALE

PMCCF 0217 HONEYWELL MICRO SWITCH MADE IN USA 5

35121177 CHECK VALVE FOR INGERSOLL RAND AIR COMPRESSOR

71126874 FRICTION PLATE INGERSOLL RAND

OIL COOLER PIPE 6L8938 - CATERPILLAR

SL-22H SAFETY VALVE VENN CO. SIZE-20

TERASAKI EMI-301 OUTPUT INTERFACE MODULE K/787/11-001A

20MAM9M12 PARKER AUTOCLAVE 20000PSI MALE ADAPTER

6Y738 GREASE FEEDER POLYCARBON W W GRAINGER

1710-5197 SEAL KIT FOR 1 1/2" SHUTTLE VALVE KOOMY 5 KIT

ARU-24D TERASAKI CONTROL DEVICE 450V AC

KU-555A THROTTLE CONTROL ARM INGERSOLL RAND

HU-565 LEVER INGERSOLL RAND

D10-507 INGERSOLL RAND GASKET 4

HU-556 INGERSOLL RAND THROTTLE LEVER  /

406658B NXT AIR MOTOR REPAIR KIT GENUINE GRACO PARTS

PD5-H505A CYLINDER HEAD FOR RAM WINCH

FILTER PAPER WHATMAN 90MM/QUANTITATIVE FILTER PAPER 90MM

22170187 INGERSOLL RAND OIL SCAVENGE TUBE ASSEMBLY

0155-4779 CUMMINS BELLOW PIPE-EXHAUST 4071458 (38X58X38 CM)

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

ALFA LAVAL 176216323 SHAFT SEAL FOR FEED PUMP TYPE ACP032L 192692

35592534 DIAPHRAGM DOOSAN INGERSOLL RAND

22031 DIAPHRGM NON-RETURNABLE PART INGERSOLL RAND

INGERSOLL RAND 22033 SEPARATOR PLATE LOT OF 6

GA114-75 TONG PULL LINE GAUGE MD TOTCO

01151-0372-0002 FISHER ROSEMOUNT PROCESS CONTROL BOARD PRESSURE CONTROL

GA112120 PRESSURE GAUGE 12000 PSI MD TOTCO

0509-21 ROSS HILL CANTROLS GROUND FAULT PCB CARD