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。

BEKA BA326B 4/20MA LOOP POWERED INDICATOR, INTRINSICALLY SAFE, BARGRAPH

AQUAMETRO CONTOIL VZO 15 RC 130/16 FLOW METER

SCOTT SAFETY 15 MIN ELSA EMERGENCY ESCAPE BREATHING DEVICE

RIKEN KEIKI GD-F5A GAS DETECTOR SENSOR

SAGINOMIYA BNS-C1090WL2Q TEMPERATURE CONTROLS RANGE 2.5-90°C

SAGINOMIYA BNS-C1150WL2Q TEMPERATURE CONTROLS RANGE 70-150°C

CONVOTHERM 2230016 PRESSURE REGULATING VALVE WITH GAUGE  PRESSURE SWITCH, 20.20

IDEC IZUMI FA-1 PROGRAMMABLE CONTROLLER PFA-1C24RDC

ELREST ASYS AUTOMATION SYSTEM DCE-20DE 41230.0001

NORGREN D1012H-24-A1 PROSPECTOR DIRECTIONAL CONTROL POPPET VALVE 3/2 NC 1/4"PTF

ZX90031 4DI/2DO MODULE

WARTSILA DESPEMES DE SPEED 2V72H114 C2-NDE CARD

GILMORE P/N 25412 RK NOV 9910225 , 3/4" SHUTTLE VALVE REV.H REPAIR KIT

DENISON HYDRAULICS ZRD-ABZ-01-S0-D1 THROTTLE CHECK VALVE 098-91058-0

YOKOGAWA AAI135-H03-S2 ANALOG INPUT MODULE

OMRON SYSMAC S6 PROGRAMMABLE CONTROLLER 3G2S6-CPU15

FATHOM SYSTEMS 000-011-003 DUAL MUFF HEADSET WITH MIC

QMI MULTIPLEX OIL MIST DETECTOR ATMOSPHERIC SENSOR

SOFTHARD DXA MICROCOMPUTER MOTOR PROTECTION DEVICE µ-MPD

EH FLOWTEC 321440-0200B PC BOARD

FUJI ELECTRIC FVR-C11 MODEL FVR0.4C11S-7EN INVERTER AC DRIVE

HONEYWELL XL8000-SPC SMALL POINT CONTROLLER

DECLERCK IPSO-ILG 254/00067/00 PCB

YAMATAKE-HONEYWELL SFC100-12H-XC HMI

SPIRAX SARCO SA 128 TEMEPRATURE METER -20°C To 110°C

PROSERV GILMORE VALVE 25412-SK SEAL KIT FOR 3/4" SHUTTLE VALVE 871630 - LOT OF 6

GENERAL ELECTRIC 2JD55VB1A SELSYN MOTOR 115/57.5V-60Hz-200 RPM

DEIF TAP 210DG/3 INWATT TRANSDUCER RANGE : 0-4,5MW

NESS TUL-HSP-S THERMOMETER 0-600°C

GCE MEDILINE DUOLINE 8329041 MEDICAL HIGH PRESSURE REGULATOR

AVO INTERNATIONAL BM12 MEGGER RS 616-661

RED LION PAXLCR00 INDICATOR

RIKEN KEIKI OS-8076 OXYGEN SENSOR

HAIXING MARITIME CFD1 EXPLOSION PROOF INCANDESCENT LAMP

CITICEL C/Y OXYGEN SENSOR

FAMABRAS 317375 BIMETAL DIAL THERMOMETER

WABCO 3712052000 PNEUMATIC DIRECTIONAL VALVE -  

KTM ST-XF4 1/4” 316 SS 3-WAY VALVE - LOT OF 6

NOV P/N 9910225 VALVE REPAIR KIT

FURO 24P0016 FA100 PWX MODULE

PARKER ZINC PLATED STEEL INLINE MOTING, HYDRAULIC CHECK VALVE G3/8"

MARTIN 01001529E PCB

FUJI LM1-PP 15-4 MAIN DRIVE CONVERTER PCB CARD SA536923-01

ASCO 43004472 SOLENOID COIL - LOT OF 6

ENDRESS HAUSER TST264-1XX31BAP OMNIGUARD S ATEX FLAMEPROOF SENSOR

ELECTROLUX 0C4272 HEATING ELEMENT 440V 1500W

EMERSON CONTROL TECHNIQUES SKA1200075 COMMANDER SK INVERTER 0.75KW

TOHO 13610147 TRIPLE SPUR GEARED CHAIN BLOCK - 3 TONNE

TANAKA PFL-1 SERIES DIGITAL SCALE AC 100V, RANGE 20 GR. TO 1 KG

3M PELTOR MT7H79P3E HARD HAT - TWO WAY COMMICATION HEADSET

3M PELTOR MT7H79P3E HARD HAT- TWO WAY COMMICATION HEADSET 3.5mm

UZUSHIO ELECTRIC U4RA21 ANNCIATOR

NESELCO 601 B 6100 SHORT CIRCUIT TRIP SELCO B-6120

PELTOR MT7H79B-04 HEADSET FOR HLO RADIO VHF-AM TRANSRECEIVER FSG5

BOSCH LBB 4442/00 LINE SUPERVISION SET

PHOENIX CONTACT DEK-0E-24DC/48DC/100 SOLID STATE RELAY TERMINAL BLOCK 2940207

JRCS ENGINEER'S EXTENSION ALARM PANEL

COOPER CROUSE HINDS GHG 101 0012 R1000 EXPLOSION PROOF MULTIFCTION MODULE

BLOHMVOSS 775115 CARRIER SECURING ASSEMBLY

12xPHOENIX CONTACT 0912043, ECP-E3 3A,4A,6A ELECTRONIC CIRCUIT BREAKER 24VDC

NOV 20015455 STEM 3-15M,1.50 DIA,T-HB VALVE,H2S/LT

NORGREN F17-800-M3DA GENERAL PURPOSE FILTER, 1 PTF PORTS, MANUAL DRAIN, METAL BO

EPCOS BR6000-R12 POWER FACTOR CONTROLLER B44066-R6012-E230

SHAFFER F/20077172 BOP SHUTTLE VALVE REPAIR KIT

MITSUBISHI ELECTRIC DS20TK-M C17C RECTIFIER

KYORITSU 3322A 3-RANGE INSULATION TESTER 125V/250V/500V

CASTEL 6420/7 CAPPED VALVE 7/8” 19-7034-01258-Z

DAVID BROWN HYDRAULIC 320B0836101F11505 SUCTION VALVE TD60/QD100

NERA MI SATURN B MESSAGE INDICATOR QUFC 911 910-3

TAKANAWA PATP85844 FAN MOTOR FOR EVAPORATOR FOR NRC-150 100V

EMERSON SCB-41 REV.1.0 PCB CARD LD80S SENSOR CONNECTING BOARD

TETRA PAK TMCC2-ETH 559815 PLC MODULE CONTROLLER

VACON PC00242F TRIGGER BOARD FOR FREQUENCY INVERTER

AXH-1 AUXILIARY SWITCH NA-6024-1-4 5p3a2b

FRANCIS SEARCHLIGHTS C20189-00 TRANSFORMER IT

SAPL 7787-270 VALVE 105758

NOV SHAFFER P/N 7401919 REPAIR KIT FOR 1/2" SPM,NCB, H-TYPE VAVE

MARTIN DECKER E273-40 DIAPHRAGM SENSATOR

DANFOSS TOTALIZER EMAT 085H002 TC RI

TAMAGAWA SEIKI TS4E11 SYNCHRO TX.TR MOTOR 100/110V 50/60Hz

PENNY  GILES VRVT100/E/SM/L/300/ISS LINEAR DISPLACEMENT POSITION SENSOR

PARKER D1VLB001CV 91 LEVER OPERATED HYDRAULIC DIRECTIONAL CONTROL VALVE

COEL MOTORI TIPO MH 40 F ROTARY PUMP

J.G. CONTROLS DIGILOG PROCESS IT TYPE MB 21/21 PRO PCB A-AB

ALSTOM RTx-132 TIME RELAY 24-48 AC/DC 1-12s ALSTOM

AQUA SIGNAL 0860052000 DOWNLIGHT

HYOMYG PA-30W PA SOD CONTROL IT

VINGTOR VMP-530 MAIN STATION WATERPROOF

AMERICAN DYNAMICS AD2016PC  AD2016 AVIM VIDEO INPUT KIT

CHLORINATOR ALARM PANEL CALL ECR

E2V TECHNOLOGIES GXH192A SERIES 2-ELECTRODE SPARK GAP 05275859

IWAKI EX4-10VH-110805 DOSING METERING PUMP 110V

DETROIT SWITCH 222-10 TEMPERATURE CONTROL SWITCH 2221594, RANGE 510-625°F

KLAY INSTRUMENTS DGN 75MR DIGITAL PANEL METER 24-230V AC/DC

NOV SHAFFER 717186 BEARING RACE FOR GATE VALVE

NOV SHAFFER 9915085 SEAL KIT 1 INCH FOR 1505005,1505006

FUJIKOKI EBM-MD12DM-30R ELECTRONIC EXPANSION VALVE COIL

TAIKO POWER ROTOR MC17430020 FOR MSH-10XJ F.O. BURN PUMP

HONEYWELL 43184856-003 REV.P CIRCUIT BOARD FOR VALVE ACUATORS

TIDELAND PC ASSY PN 530.1340.256 CODE MP PROCESSOR FLASHER TIMER

KONGSBERG 380-219476 ACC 401 MAINS CABLE

MAN DIESEL TURBO 19109.99011-0850

NOV 6212-1830-00 CYLINDER ADJUSTING NUT

OMICRON OAU-01/Ex ALARM IT

YUKEN DSG-03-2B2-A100-50 DIRECTIONAL VALVE

LOIPART KANGLI3GE01020 ELEMENT FOR DFF 3Kw

GF 761069650 INSTAFLEX BTV 2 HWS VALVE

SMITH CC509P MEDIUM DUTY CUTTING ATTACHMENTCW5A HANDLE WITH ACCESORIES

LORAN COOK DS1 DRIVE SHAFT

BEHNCKE EWT 80-70 HEATING ELEMENT I-90360

BLOHMVOSS 775191 PLGER

NIPPEN DT-36M VAF MULTIFCTION METER 3 PHASE 4 WIRE

FUJI WMH VARIABLE RESISTOR 25W HB 3KΩ - LOT OF 9

CONSILIUM NMEA BUFFER IT 2 PCB NB02 701922A

CROWCON TXGARD-PLUS FLAMEPROOF TOXIC  OXYGEN GAS DETECTOR WITH LCD DISPLAY

INA 4428 SINGLE DIRECTION THRUST BALL BEARING -  

BOSCH LBB 444200 LINE SUPERVISION SET PCB

SWAGELOK 316 TUV 278/03RWT STRAIGHT ION TUBE FITTING 10 MM OD - LOT OF 14

SEIKO No. 802-4 PCB

REXROTH DR 6 DP1-53/210YM DIRECT OPERATED PRESSURE REDUCING VALVE R900475604

VALMET AUTOMATION BIU8 M8512221 BINARY INPUT IT BIUS 542803-6B

SSET CE-IJ03- 74ES3 CURRENT TRANSDUCER, INPUT 50,100,200 AAC –  

AUTRONICA GA-2A MEASURING POINT AMPLIFIER

GENIUS IC200GBI001-FF NIU MODULE

ASSALUB LTB-2036-6 FLOW SWITCH

TRIAX TMS 5X8C SERIES CASCADABLE MULTI SWITCH FOR 1 SATELLITE POSITION-4XSAT POL

RIKEN KEIKI FLAME ARRESTER A2-04259E

HSME INDICATOR VALVE HBS-B 200BAR FOR LOW SPEED ENGINES

MG TR 500 TEMPERATURE CONTROLLER

ELTRAC ET 2036 MULTIFCTION DIGITAL PANEL METER

VALMET M8513611 POWER SUPPLY PUD10

WATTS 3/4 40XL8 150210 SELF CLOSING TEMPERATURE  PRESSURE SAFETY RELIEF VALVE