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。

 BANNER AG4 INDUSTRIAL CONTROL PLUG-IN MODULE MODEL AG-4

SIEMENS PTM6.1PS120-M PNEUMATIC POSITIONING MODULE

 FESTO MS4N-EE-1/8-V230-S ON-OFF VALVE COIL 198-253VAC 1/8" PORTS NPT

 COSMICAR PENTAX LENS FOR AXIS 2120 CCTV CAMERA TS2V314BED 3.5-8mm 1:1.4 CS

 · 8mm · CCTV Lens

 INFINEON FF300R07KE4 300A 650V IGBT INVERTER MODULE AMETEK 03-657003-10

 ALLEN BRADLEY 800T-XAY STACKABLE  CONTACT BLOCK 1 NO 1 NC

DM S ALLEN BRADLEY 800T-XAY STACKABLE  CONTACT BLOCK 1 NO 1 NC

 GRACE ENGINEERING GRACEPOINT PANEL INTERFACE CONNECTOR P-P11-B2RX

WAVE FGRO9CS TRANSCEIVER 6-30V

 PILZ PNOZ MC3P PROFIBUS-DP MODULE 773721

DM SNITRA MBT14-14N MALE BRANCH TEE PNEUMATIC PUSH FITTING 1/4" to 1/4" NPT

 PARKER STAINLESS ROTATING PLUG VALVE 3000 PSIG @ 100°F 6A-PR6-VT-SS GR 1RBB8

  LINCOLN ELECTRIC DUAL PROCEDURE SWITCH ADAPTER K686-1

 RITTAL CAREL RITCUSR002 TEMERATURE CONTROLLER REV 1.220 USER INTERFACE

ALLEN-BRADLEY 800H-JR91 3 POSITION SPRING RETURN L  R SELECTOR SWITCH 800T-XAP

ALLEN BRADLEY 6 AMP MOTOR PROTECTION CIRCUIT BREAKER 400/690 VAC 140U-D6D3-B60

TRANE X13650798-02 AF1706 FURNACE CIRCUIT BOARD ICM PCB514-6A

  HYDEPARK SM851A-04-00FP PROXIMITY SENSOR 12-24VDC 4 PIN NNB

WARREN RUPP 286-007-365 DIAPHRAGM FOR SANDPIPER 2" PUMP

DM SCROUSE HINDS DEV12R HAZARDOUS LOCATION PUSHBUTTON RED

 MICROSCAN AD60W1P-310B POWER SUPPLY 24VDC 3 PIN 97-100004-15 100-240VAC IN

  KIDDE FIRE EXTINGUISHER VEHICLE BRACKET 5LB HVY DUTY CAR VAN MODEL 292474

   KIDDE FIRE EXTINGUISHER VEHICLE BRACKET 5LB HVY DUTY CAR VAN MODEL 292474

 ASCO 3/8" PNEUMATIC VALVE 120 VAC 200 PSI 8W

 BBC BROWN BOVERI 1000:1A CLAMP ON AMP CURRENT PROBE K1.1 10VA 0.5/3kV GE4456

YAMATAKE-HONEYWELL J-A0M10 HIGH LEVEL ANALOG MODULE W/ J-RRK03 CABLE

YAMATAKE-HONEYWELL J-MHM10 HIWAY INTERFACE MODULE

 MURRAY AJUSTO-SCREW TENSIONER 1B

 GAST AA900D GLASS MUFFLER/FILTER ASSEMBLY 32 OZ OIL-LESS 3/4" NPT

GRACO / LTI X09207-103 3 FT HEATED GLUE HOSE ASSEMBLY 90-WATTS 240 VAC

WESCHLER INSTRUMENTS BG241 BARGRAPH METER -.3/0/.3 DEGREES 4H341SSS1XCXXXX

 ATKOMATIC 3/8" SOLENOID STEAM VALVE 5-125 PSIG 115 VAC HS300JB

 ASHCROFT PROCESS PRESSURE GAUGE 0-60 PSI 45-1259SL-04L 60#

  SPEEDAIR 4ZL46 PNEUMATIC FILTER 1/2" NPT 150 PSIG

 WARNER ELECTRIC 117 VAC 15 VA MCS-142 PHOTOELECTRIC AMPLIFIER 602-9367-002

 WARNER ELECTRIC 117 VAC 25 VA MCS-160 PHOTOELECTRIC AMPLIFIER

 PARKER 1/4" AIR REGULATOR 300 PSI MAX 120° MAX R119-02C

 ALLEN BRADLEY 855TV-B10L4 RED TOWER LIGHT STACK ASSEMBLY 120V

UE ITED ELECTRIC 0-20 PSI PRESSURE SWITCH 15 AMP 480 VAC J402-144

DM STHOMAS  BETTS 5354 90 DEGREE LIQUIDTIGHT 1" CONNECTOR

MODICON AS-B872-100 4-20MA ANALOG CURRENT OUTPUT B872 W/ WIRE TERMINAL SCREWS

 DODGE TAKE UP BALL BEARING 36.5mm BORE 131216 / WSTUSXR107

ROSEMOT ANALYTICAL SOLU COMP WATER QUALITY ANALYZER 120/240V 8W SCL-P-014-M2

 WATTS FLUIDAIR 3/4" FILTER REGULATOR 150 PSI 10 BAR 120ºF B105-06BJC

 ASHCROFT LIQUID FILLED 300 PSI 1259 PROCESS GUAGE 45 1259SL 04L XNNSG 300#

DM S  ALLEN BRADLEY 700-AR2 SERIES B R-C MODULE 120/240 AC/DC LOT OF 9

GRACO 15B266 BA NITRILE SEAT AND BALL HUSKY 1590 DIAPHRAGM PUMP

SWAGELOK SS-4MG STAINLESS MEDIUM FLOW METERING VALVE 1/4" TUBE O.D PORTS

KIDDE-FENWAL AI N/C SMARTMONITOR MODULE 70-417008-002 AB

DM SARO STAINLESS STEEL BALL 93410-1 ARO PUMP 650502 3/4" O.D

 EGS APPLETON UCPB2BL BLACK EXPLOSION PROOF LOCKING PUSHBUTTON

  ASCO RED HAT 1/2" BRASS SOLENOID VALVE 2009252G

ROTO HAMMER DUCTILE IRON CHAIN WHEEL CL-7.5

AVAYA PROCESSOR MODULE 100-240 VAC 1 AMP 16 GB 103G15/G16

GAST REDUCTION GEAR DRIVE 15:1 RATIO 1/2" X 1 3/8" SHAFT 1UP-NRV-16-GR11

ALLEN BRADLEY SIZE 1 MOTOR STARTER 230-240 VAC COIL 600 VAC 10 HP 509-B0A

 IM MIX 3D-EFX MODULE VIDEO EFX 0003 5490 2570WT

 PARKER 1" PNEUMATIC FILTER 250 PSI MAX 08F53AC

 SKF RADIAL  DEEP GROOVE BALL BEARING 6313 JEM

 STEYR 3D DOUBLE ROW BALL BEARING 3310 / 3310B/N

 KF CONTROMATICS STAINLESS BALL VALVE LHM3 1-1/2" SIZE TYPE 8000 2000 CWP

 TORQ-KIT VSP PIPE 316STAINLESS FLANGE ASSEMBLY KIT NPS 3" 150# STUDS, NUTS

SIEMENS S-LP70-MCS 500-699721 FIRE ALARM SPEAKER WITH STROBE

 WILKERSON 1/4" DIAL AIR PRESSURE CONTROLLER 2302-2L

 REXNORD 383920/30 HSP 10010832 1070T HUB 2.125" BORE

BONNEY FORGE GATE VALVE 3/4" - 800 A105NFORGED STEEL HL-12-LE

DM SHEWLETT PACKARD HP 81 LIGHT CYAN DYE 680ml CARTRIDGE C4934A C5070A (DM S

 TLV S5-32 /A  FLOAT STEAM TRAP 450 PSI 2 BOLT 752ºF

ROTO HAMMER DUCTILE IRON CHAIN WHEEL CL-9

 JET INTELLIGENCE HP LASERJET 410A YELLOW PRINT CARTRIDGE M452 M477 CF412A

  JET INTELLIGENCE HP LASERJET 410A YELLOW PRINT CARTRIDGE M452 M477 CF412A

  WACO HAMMER ION 2" FIG 400 N970-F400-200 HIGH PRESSURE ION 4000 PSI

 ATLANTIC 10" x 3" x 2-1/4" GRINDING WHEEL 2674/3056 RPM 9-06852/12-1

 WHITNEY 10' 160 LINKS PRECISION ROLLER CHAIN 3/4" PITCH 60 RIV

REBUILT HONEYWELL 2-4 SEC FLAME RESP RECTIFICATION AMPLIFIER 8-PIN R7257A1028

 REXNORD LINK BELT 10 FT LONG 80 PITCH ROLLER CHAIN C2060HR10BX

  GEMLOCK 8" GROOVED RIGID COUPLING STYLE 5 300 PSI WATER 5-8"

 ALLEN BRADLEY CONTROL NET COMMICATIONS BRIDGE 1756-CNBR E F/W REV 11.003

HOFFMAN DESIGN AIRE ELECTRIC HEATER 120 VAC 100 WATTS D-AH1001A

 HOFFMAN DESIGN AIRE ELECTRIC HEATER 120 VAC 100 WATTS D-AH1001A

 SPIRAX SARCO IT STRAINER 60298 1-1/2" 60 MESH

  CUTLER HAMMER 30A FUSIBLE SAFETY SWITCH 240V 3 HP 1 PH TYPE 1 DH221NGK

 GE FANUC 12/24 VDC OUTPUT MODULE .5 AMP 32 PT POS LOG GRP IC200MDL750J

 KLEIN TOOLS 3/4" EMT 1/2" RIGID 1/2" IMC CONDUIT BENDER 56207

 ALLEN BRADLEY PRE-WIRED CABLE FOR 1756 DIGITAL I/O 1492-ACABLE01UB SERIES A

 PHOENIX CONTACT DT-LAN-CAT.6 SURGE PROTECTION DEVICE

  AMOT TYPE CA 1/4" 4-WAY PILOT VALVE 125 PSI 4058D011B

 ALLEN BRADLEY FLEX I/O TERMINAL BASE IT 1794-TBNF  - FACTORY

PHOENIX CONTACT MINI MCR-SL-PT100-UI-NC Pt100 TRANSDUCER 2864273

 CALORITECH XTWA04481 TEMPERATURE COLTROL

GENERAL ELECTRIC MOTOR STARTER 600 VOLT AC 110/120 VAC COIL 10 HP CR206C0 SIZ

DM SGENERAL ELECTRIC MOTOR STARTER 600 VOLT AC 110/120 VAC COIL 10 HP CR206C0 SIZ

AUTOMATED LOGIC SE6104 BACnet ADVANCED CONTROL MODULE

BASYS GENERAL PURPOSE CONTROLLER 4 INPUT 3 OUTPUT SZ1143B W/ 2 CONNECTORS

ARROW 5702-1/4 ECONOMATIC DRAIN - FLAW

  REXROTH VALVE 48 VOLT 10 BAR MAX 9180 / 0820018128 / 1824210118

 3D INSTRUMENTS 0 TO 600 PSI PRECISION DIRECT-DRIVE GAUGE 4-1/2" 25544-28B54

 PARKER 04F20C2210ACF4C050 SOLENOID VALVE 120/60 1/4" NPT OXYGEN SERVICE

SIEMENS 8 CHANNEL INPUT ANALOG MODULE 25M17 505-6018B

1DM SCLIPPER FLEXCO U2SPS12 IBAR STAINLESS STEEL HOOKS 18851 LOT OF 12

  MAC 24 VDC SOLENOID VALVE 8.5 WATT 25 - 150 PSI PME-611CAAD

1DM SCLIPPER FLEXCO U2S12 430 STAINLESS STEEL HOOKS 18400 LOT OF 12

DM S  CLIPPER FLEXCO U3-1C24 COATED STEEL HOOKS 01364 LOT OF 10

  NORTON 661 HANDICAP FACE PLATE DOOR SWITCH POWERMATIC DOOR OPENERS

 SHARPE STAINLESS STEEL BALL VALVE 2000 CWP 250#WSP 3/4" 54576N

 PARKER N820SV HYDRAULIC FLOW CONTROL VALVE 5000 PSI 1/2" FEMALE TO FEMALE

 FULL GAUGE MT-531RIL PLUS/01 TEMPERATURE  HUMIDITY CONTROLLER 12/24 VAC/DC

 MAC 225B-511BAAA SOLENOID VALVE 24 VDC 150 PSI 4.5 WATTS 225B-511BA

  REXROTH VALVE 48 VOLT 10 BAR MAX 9180 / 0820018628 / 1824210118

DM SSWAGELOK BRASS B-600-9 ION ELBOW 3/8" X 3/8" TUBE O.D 90º LOT OF 7

DM SRIDGID LONGRIP PIPE EXTRACTORS No. 85 # 84 # 83 # 82 # 80

SIEMENS 6RB2000-0NB00 CIRCUIT BOARD 447 700 9U81 00L GE 647201 0400 04

 EDWARDS SIGNALING ADAPTABEACON 105STR-R5 RED STROBE BEACON 240 VAC 4X

 AUTOMATION DIRECT SURE STEP STEPPER MOTOR STP-MTR-17048 002048

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  SIEMENS SIMATIC S7 DIGITAL INPUT MODULE 6ES7 321-1BL00-0AA0

   SIEMENS SIMATIC S7 DIGITAL INPUT MODULE 6ES7 321-1BL00-0AA0

  SIEMENS SIMATIC S7 PLC INTERFACE 6ES7 307-1BA01-0AA0

 SCHNEIDER TELEMECANIQUE AUTOMATION TSX 17 ACC4 82905

 PRECISION TWIST DRILL 091288 1-3/8" REDUCED SHANK HSS R58 091288 SD DRILL

 SKF 5306 A/C3 DOUBLE ROW ANGULAR BALL BEARING 30 mm X 72 mm X 1.1875" in

 SIEMENS SINUMERIK 6FC5 114-0AA02-0AA0 570 473 0003.01

 SIEMENS SINUMERIK 6FC5 111-0BA01-0AA0 570 214 9301.00

 ALLIED WITAN CO 1/2" ATOMUFFLER MODEL M05

ASHCROFT 3" BIMETAL THERMOMETER 1/2" MNPT STEM 4" LONG 30EI60E04050/300F

SMC AF60-N10D-2R-A PNEUMATIC FILTER WITH AUTO DRAIN 1" NPT 150PSI

DM S  WILKERSON REGULATOR REPAIR KIT RRP-95-952  OF 10

DM SDM S  WILKERSON REGULATOR REPAIR KIT RRP-95-952  OF 10

 DAYTON HEAVY DUTY FLOAT SWITCH 13 AMP 115/230 VAC 6PNV7A

 AEROQUIP FS59002-1212-75 FULL FLOW SWIVEL JOINT

TELEMECANIQUE TOWER STACK LIGHT RED AMBER GREEN WITH STAND XVA-LC3 220V 7W