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

1" OD 27-3/4" BF 27-3/16" Face Width Gravity Conveyor Roller Lot Of 16

YMW 2" Roughing Square Face/End Mill 6 Flute 1-1/4" Shank 4" LOC 6-1/2" OAL

Warner  Swasey Standard CNC Turret Punch Her For 2.750 Punch

6" OD x 8" BF 7" Face Width Stainless Steel Drum Idler Roller

Seco D-112052 CAT 50 Indexing Insert Boring Bar 2.750 OD 9" Projection

Daco W89042LFM Square Serrated Chuck Top Jaw Tongue  Groove Master Set Of 3

Carboloy R220.43-05.00-07-15T CAT50 Tool Her 5" Indexing Insert Face Mill

TB Woods 1-3/4" Bore J Bushing Tapered Split Hub

1/2"-13 x 3-1/2" Carriage Bolt A307 Lot of 120

Hitachi Seiki VK65 ACT Tool Changer Carousel Tooling Arm

Goddard  Goddard 5" Dia. Left Hand Cut Face End Mill 1-1/2" Arbor

Lovejoy SAGA #22 1-11/16" Bore Flexible Torsional Coupling Hub

THK 2HR2555UU380LSP Linear Guide Rails 380mm L x 18mm W x 27.25mm H

10 Port Hydraulic Manif Block

Norgren L74M-3AP-QDN Pneumatic Filter Regulator Lubricator FRL 2250PSIG 3/8" NPT

Abbott KTT10P 10" Diameter x 2-1/2" H Aluminum Pie Jaw Serrated Set Of 3

Jungner PSA-600 Machine Spindle 3/4" Keyed Shaft

Cat 50 Tool Her Tightening Tool Changing Fixture Wide Groove

Numatics I34SS500K000030 5/3 Position Pneumatic Solenoid Valve 150PSIG 120V

Allen Bradley 1746-A7 SLC 500 7-Slot Rack Chassis (2) 1746-IA16 (2)Output

8" Adjustable Width Roller Edge Material Feed Guide Support Assembly

General Electric GEM1000MLTAA5-5 86655 Metal Halide Ballast 1000W

Brown  Sharpe 14" x 10" x 6" Chip Part Strainer Dip Parts Cleaning Basket

Allen Bradley X-401978 Fuse Her Set Assembly 30A 600V W/FRS-R-5 Lot Of 9 Sets

Anilam PGS-E 330mm Linear Encoder Scale With Cable

Keltec KP0475-H Coalescing Filter Element Replacement For E-0475-H

DGMA-3-B-10 10 Port Hydraulic Manif D03 Valves 3 Spot W/ Blanking Plates

Dwyer Instruments DCT1022 Dust Collector Time Controller

Rosemount 644HAE5M5J6F6 Temperature Sensor 0-1200°F

ABB 621ESC2R531G8111 Hart Pressure Transmitter 10.5 to 55VDC 275psi

Woods 9SC Elastomeric Coupling Hub W/2-1/8"Keyed Hub Spacer Adapter

CHA20411 Push/Pull Hoist Trolley 4-1/2 To 7-3/4" I-Beam Flange Capacity Unknown

3" Flat Face 90 Degree Elbow Class 125 Ductile Iron Flanged Fitting

Huron W86003B LFM Lathe Chuck OD Step Soft Top Jaw Set Of 3

5.55mm x 30mm Steel Zinc Sensor Pin Solid Rivet Lot Of 1500

5.0500" OD 2-1/2" ID Stainless Steel Keyed Shaft Sleeve Adapter

10" x 8" x 8" Quick-Clamp Rolled Edge Duct Wye Branch Galvanized Steel 18" OAL

Rex 4705/06 12" Flat Top Straight Running Cleated Incline Conveyor Chain 67"

Miller DA-61R4N 2" Bore 8" Double Ended Stroke Air Cylinder 250 PSI

Miller DA-61R42N 2" Bore 8" Double Ended Stroke Air Cylinder 250 PSI

Bosch 0811024124 Hydraulic Directional Valve 24VDC 4/2 Way

Numatics 153SS415M000061 5/2 Position Pneumatic Valve Flexiblock Assembly 24VDC

RoMan Spot Weld Transformer Voltage Selector Assembly  Cover

Norton 12" OD x 1" Thick 38A60-IVBE Tool Room Grinding Wheel 2070RPM 3" Arbor

Mitutoyo 192-116 .001-12" Stainless Steel Dial Height Gauge Missing Covers

Sentinel Kewaunee Scientific Equipment Fume Hood Alarm

Bosch 0 811 403 001 Hydraulic Valve 315 Bar No Coil

Cle-Line 1-5/16" Cut 135° 2 Flute #4MT Shank HS Drill Bit 12-1/2" OAL

Siemens 3VF3111-6BS31-0AA0 100A Operator Breaker Disconnect Switch (No Handle)

Kates FB11B-BM Stainless Steel Regulating Valve 3-7/8" Flange OD

Leblond Makino FNC106-A Heat Exchanger Assembly 19" x 15-3/8" W/Double Fans

Allen Bradley 1746-A10  10 Slot CPU Chassis Rack PLC W/1746-P2 Power Supply

 Allen Bradley 1746-A10  10 Slot CPU Chassis Rack PLC W/1746-P2 Power Supply

Air Systems F-987-2A 12" x 12" x 8" Cell Filter W/ 2" Refillable Absorb Module

Worcester AT416TSE 2" NPT 3-Way Pneumatic Actuator Valve

Atlas Copco QMX42-5RT Electric Industrial Nutrunner 3/8" 12,000RPM Max

7/8" Diameter 455 Stainless Steel Non Heat Treated Round Bar  19"

7/8" Diameter 455 Stainless Steel Non Heat Treated Round Bar  19-1/2"

GE K1323 5K42FN2048 1/2HP AC Electric Motor 3450RPM 208-230/460 3PH 56C Frame

Dematic 2-1/2" OD 19-3/4" BF 19" Face Width Gravity Conveyor Roller

CAT 50 Boring Bar Insert Tool Her 8-3/4" Projection

Leteron Econ-O-Sign Letter Number Label Sign Embossing Machine W/ Tiles

Fanuc A16B-2200-0093/05A Robot Control Circuit Board

11" 90° V-Forming Press Brake Gooseneck Punch Die Punch 1/2" Tang 3-5/8" H

6" x 6" x 6" Wide Cast Iron Milled Finish Set Up Angle Plate Block 3/4" Thick

Starrett NO 4864 3 To 4" Outside Thickness Blade Micrometer

Conveyor System Drive Belt Tension Spring Plate Assembly

Robohand DBL-20-LC3 3" Stroke Double Rod Linear Pneumatic Slide Thrust Plate

Nikken 5AX130 CNC Indexing Table Tail  Casting

Hyster Steering Control

Numatics S32C-06BKLM Pneumatic Filter/Regulator W/ Automation Direct QPSH-AP-42

18-3/4" Stainless Steel Milk Tank Mixer 3/4" Shaft 24" OAL

Indramat TCM 2.1-02-7 Capacitor-TCM AC Servo Drive Controller

247-456-05 Rotary Encoder Heidenhain Style

Banner EM-FD-7G4 2 Channel Safety Relay 250V AC/DC

Weldon Milling End Mill 4 Flute 1-1/2" Dia 1-1/4" SHK 4" LOC 6-1/2" OAL

Fanuc A05B-2452-C151 A20B-1007-0850/04B Operator Control Panel

Showa YMAS-3 No. 15 2 Liter Lubrication Pump 200/220V 3Ph 1-3cc/cy

PLHSU 950007R/C Laser Mech P/N PLHSC0003 Controller Circuit Board

Allen Bradley MSR125H 2 Channel Safety Relay 115VAC

RKC REX-C10FPR-M*2CH Temperature Controller 19.9-99.9°F PT100 100-240VAC

Cogsdill RFS 11446 Roller Burnishing Tool Mandrel

Festo LFR-D-MIDI  LOE-MIDI Pneumatic Filter Regulator Lubricator FRL Assembly

Allen Bradley 2090-CPWM7DF-16AA40 SpeedTEC Motor Power Only Cable Shielded 60'

Hanita 6255 2" Roughing Square Face/End Mill 8F 2" Shank 8-1/2" LOC 11-3/4" OAL

2" Roughing Square Face/End Mill 8 Flute 2" Shank 8-3/8" LOC 11-3/4" OAL

Fanuc A16B-1211-0310/07B 3rd/4th Axes Control PCB Circuit Board

Automation Direct C0-02DD2-D Click Analog 4-Point 2-Channel PLC 24VDC

Miltec 390-00102 Premium Quartz UV Bulb ()

SMC EX250 DeviceNet Input Pneumatic Valve Logic Module 24VDC

A826-2049 6-8P 10.75" OD x 1" Wide 63 Tooth Spur Gear 2-1/2" Keyed Bore