福建中立恒自动化设备有限公司

目前，世界上有200多个厂家生产可编程序控制器产品，厂家有德国的西门子，美国的Rockwell(AB)、通用(GE),日本的三菱、欧姆龙，法国的施耐德等。

可编程序控制器总的发展趋势是向高集成度、小体积、大容量、高速度、易使用、高性能方向发展。具体表现在以下几个方面：

(1)向小型化、专用化、低成本方向发展

20世纪80年代初，小型PLC在价格上还高于小系统用的继电器控制装置。随着微电子技术的发展，新型器件大幅度的提高功能和降低价格，使PLC结构更为紧凑，功能不断增加，将原来大、中型PLC才有的功能移植到小型PLC上，如模拟量处理、数据通讯和复杂的功能指令等，但价格不断下降，真正成为继电器控制系统的替代产品。

(2)向大容量，高速度方向发展

大型PLC采用多微处理器系统，有的采用32位微处理器，可同时进行多任务操作，处理速度提高，特别是增强了过程控制和数据处理的功能。另外，存储容量大大增加。

(3)与计算机联系密切

从功能上看，PLC不仅能完成逻辑运算，且计算机的复杂运算功能在PLC中也进一步得到利用，从结构上看，计算机的硬件和技术越来越多地应用到PLC；从语言上看，PLC己不再是单纯用梯形图语言，而且可用多种语言编程，如类似计算机汇编语言的语句表，甚至可直接由计算机语言编程；在通讯方面，PLC与计算机可直接相连并进行信息传递。

(4)发展多样化

可编程序控制器发展的多样化体现在3个方面：产品类型、编程语言和应用领域。

(5)模块化

PLC的扩展模块发展迅速。功能明确化、专用化的复杂功能由专门模块来完成。主机仅仅通过通讯设备向模块发布命令和测试状态，这使得PLC的系统功能进一步增强，控制系统设计进一步简化。

(6)网络与通讯能力增强

计算机与PLC之间以及各个PLC之间的联网和通讯的能力不断增强，使用工业网络可以有效地节省资源、降低成本、提高系统可靠性和灵活性，致使网络的应用有普遍化的趋势。

(7)多样化与标准化

生产PLC产品的各厂家都在大力度地开发自己的新产品，以求占据市场的更大份额。因此产品向多样化方向发展，出现了欧、美、日多种流派。与此同时，为了推动技术标准化的进程。一些国际性组织，如国际电工委员会(IEC)不断为PLC的发展制定一些新的标准，如对各种类型的产品作一定的归纳或定义，或对PLC未来的发展制定一种方向或框架。

(8)工业软件发展迅速

与可编程序控制器硬件技术的发展相适应，工业软件的发展非常迅速，它使系统应用更加简单易行，大大方便了PLC系统的开发人员和操作使用人员。

可编程序控制器的输出信号类型可以是开关量、模拟量和数字量。输出单元从广义上分包含两部分：一是与被控设备相连接的接口电路，另一部分是输出的映像寄存器。

PLC运行时CPU从输入映像寄存器读取输入信息并进行处理，将处理结果放到输出映像寄存器。输出映像寄存器由输出点相对应的触发器组成，输出接口电路将其由弱电控制信号转换成现场需要的强电信号输出，以驱动电磁阀、接触器、指示灯等被控设备的执行元件。

以下链接皆有货

Durco 13" DI DX23060AB Rear Cover

Durco 13" DI DX2306AB Rear Cover

Century OCA10208 5.6" Diameter HVAC OEM Replacement Motor - OCA10208

BLX V100E 4-20mA Electro Pneumatic Valve Positioner Controller Transmitter Meter

Durco Mark II Rear Cover CT21805AF 10" D20

ROSEMOUNT 8711TSA005R1E5G1 Magnetic Flowtube Assy Explosion Proof

Square D Explosion Proof Size 0 Combo Starter, 8539, SBR43, 600V, 15A, 5 HP

Ingersoll Rand Zimmerman Articulating Arm

Watlow Heater Element 7-21-60-66MU, 1045, 24KW, 480V, 3 Ph, 11” Flange

Daren DEL519 Issue B 95-240v-ac Power Supply 1a B224545

Allen Bradley MCC YUERSP523/2AY (2162N) Q, 5 HP VFD 1336S-BRF50-AN-EN30, 480V

Allen Bradley MCC, YUERSP523/15AW (2162N) , 5 HP VFD 1336S-BRF50-AN-EN30, 480V

DG0259H DG51H 59T HELICAL GEAR

Glass- Col Digi Troll II 104A-PL612 Digital Temp. Controller

FOSTORIA 642700 Electric Infrared Tubular Heater Element

GSE Electronic Scale Model 4446 SN 7093, Max. 200 lbs

NORDSON 1029398 DRIVER MODULE 2CH MODEL HD2A

Dynax CS 50/6-200 Spindle Motor

VIDEOJET 395624 Gutter Pump/Valve Module 1710 Spare

Viking Inline Gear Reducer 3-551-007-765-HG, Ratio 7.65

Viking Inline Gear Reducer 3-551-007-765-HH, Ratio 7.65

Morning Glory Signed Rick Rush Print

Viking Pump Inc. 3-551-007-765-HC Gear Reducer Ratio: 7.65:1

US Motors 25HP; 1190RPM; 460V; Frame: 364U C10 0104719B-001R-08

US Motors 25HP; 1190RPM; 460V; Frame: 364U C11-S225B-M

US Motors 25HP; 1185RPM; 460V; Frame: 364U C03/

Emerson 3HP; 1175RPM; 460V; Frame: 215 N09-BG92-M

Universal Flow Monitor LN-FSF400GPM-24F-ROWD-Z20

Loctite Bond-A-Matic 3000 Light Viscosity Adhesive With Gast Agitator

Watlow DC31-60K2 Heater Controller

LIQUATITE ATX-18 3" X 25' FLEXIBLE CONDUIT

Allen BRadley 1771-A2B Series B 8-Slot I/O Chassis w/ Modules

Allen-Bradley 1336-B005-EAD-L3 Drive Module 5.7-6 AMPS, 380/415/460 VAC, 50/60Hz

Cutler-Hammer Model: C300FN3 Series A1 Type ST 150 Amp Overload Relay

Bower 95528/95925 Taper Bearing Cone&Cup 5-1/4" ID 9-1/4" OD USA

Chromalox MTO-2XX Tank Heater

TB Wood's Adjustable Sheave Type SVS-54B3118

Electro Cam PS-5121-10-M09 PROGRAMMABLE LIMIT SWITCH 20-240 VAC

Gould's Simplex Control A32510

Siemens SLID3620G 60 Amp Bus Plug

Thermoseal Sealex SI200920301 1/2" x 150ft. PTFE Joint sealent

Moyno Pump CDF 1.5x1-3 Positive Displacement Pump

Atlas Copco 4230-1904-82 Nut Runner QMX90-95RT QXT90-1000

Square D 800 Amp MHL36800 Molded Case Breaker

Square D 800 Amp MHL36800 Molded Case Breaker

Rexroth A.C. Servo Controller DDS02.1-W100-D

Foxboro QC01 NO310BD Manual Control Unit 0-100 Output Gauge Auto Main 10 Wire

Honeywell NXL0075A1003, 7.5HP, 480V, NEMA Type 1

Browning 2C100SF V-Belt Pulleys SF Series Bushing

Allen-Bradley 160-AA02NPS1P1 Ser. B Variable Speed Drive

Apollo 2" 87A20801 CF8M 316 SS

Monitor 1-8511-1 Self-Validating Rotary Bin Level Indicator

Nord 5 Hp; 1715 RPM Electric Motor

Board 616-00WSB6XC00

ASCO 8551 Solenoid Spool Valve

Brown Dresser

Stanley Entertainment Center

Red Lion Controls C48D002 Counter, 5.08 to 7.62 mm Display

Red Lion Controls C48D002 Counter, 5.08 to 7.62 mm Display

Durco 1" Actuated 3-Way Plug Valve

CARDINAL DETECTO 190 STORM IP69K WASHDOWN DIGITAL WEIGHT INDICATOR, 100 -240 VAC

Red Lion APLLP500 LOOP PROCESS INDICATOR 4-20MA/10-50MA

Allen-Bradley 1336 (148443) Bulletin 1336 Constant Torque 3 Phase

Hanlo Internal Groove Gage #85632 with Mahr Federal Umaxum II Gauge

Hanlo Internal Groove Gage #86923 with Mahr Federal Umaxum II Gauge

Durco Impeller 2x1-10 Mark II Group 2 Part#: 36650 Material: CD4M Suction: 2”

Durco Impeller 3x1.5-10 Mark II Group 2 Part#: 36861 Material: D20 Size 9

Durco Impeller 3x1.5-10 Mark II Group 2 Part#: 36861 Material: D20 Size 8.5

Durco Impeller 2x1-10A Mark III Group 2 Part#: 46952 Material: D20 Size 10

Cutler Hammer Size 2 9800 Unitrol MCC Bucket No door 25 HP 480 Volt

McCrometer V-Cone Flow Meter V1104, 4” – 150 Rated, SA182, 304/304L C4527

Panametrics   MC Series Relative Humidity Transmitter

IEE 03601-20-040 Flourescent Display, 5V DC, 3.5 W

Brooks Instruments Flow Meter 1110-08H2BIA

Durco Impeller CS26832A 13"

Hayward ST2680300T 3" Inverted Bucket Steam Trap

Rexnord Roller Chain Model: REX1202R10BX Length: 10 ft. (3.05m)

Resistoflex Expansion Joint Size 8 PTFE

Mitsubishi FR-A240-2.2K-UL Inverter

Ingersoll Rand 39249784

Crouse Hinds Explosion Proof Breaker M75, EPC377, 100A, 600V, 2/EFG

Joe Namath- Guaranteed Winner Signed Rick Rush Print

Slalom Signed Rick Rush Print

Fisher Diaphragm Actuator Type 667 Size 40

(2)Mercury first generation Alpha drives, upper & lower halves - Scarab

Banner Engineering MINI-SCREEN Control Box Model: MSCC-2L3M

FOXBORO L0118WG REV A INTERFACE FPWA

Gould 5 Vane Split Casing Pump Impeller 088183 Size: 10"

Durco Impeller CS28887A 10" Original Size 9.5" Trim

Clark Reliance ECID23R Control Module

Rosemount CD2A02A1AE5M5S5 Pressure TransmitterE83W-02SSIT-A Flow Meter 3626PSI

Foxboro IAP10-D22D1F-M1L1 I/A Series Mass Flowmeter

Anderson 10,000 PSI Oil Filled Food Grade Diaphragm Gauge

Hilti X-Btw10-24-6SN12-R Stud Fastenings *LOT OF 100*

Apollo Conbraco 88A10A01 Ball Valve

Peerless Pump Division 2x1-8 2608300 Stainless Shaft

LMI Metering Pump A141-910AI

Danaher Motion Bindicator R-H-AX13AA2A-25 Paddlewheel Indicator

Link-Belt Pillow Block Roller Bearing, PEB22447H, 2 15/16"

LMI Pump B731-75HV

Durco Impeller 2z1-10A Mark III Group 3 46952 8" Trim

Endress+Hauser FTL50 Liquiphant M

GARVAC, Bi-Directional Generator Shunt Field Generator Regulator, 930-11-TL

Mitsubishi FE-A240-7.5K-UL Inverter

Viking Iron Pump Casing 1-194 801, 3.25” x 1.75”

Ingersoll-Rand Aro Diaphragm Pump 4936753

ALLEN BRADLEY, Manual Starter Switch, 609-ACW-AB

Endress+Hauser 63F S08-AAWOOA25B1A Flow Meter

Fibro 53.55.3.0090 69361 00627

Durco Impeller 41958 8" CD4M

Durco Impeller 4x3-13 Mark III Group 2 36847 11" Trim

Worchester 3" Actuated Ball Valve

3DM Model: 11310 Hydra VMEHotlink

Ametek Series 2000 Thermox Flue Gas Monitor

Chesterton Model: 241-15 Double Balanced Double Seal

Co-Ax Valve A 45 NC 10 6C6 3/8 DC 24L

WATLOW, Power Switching Device, DC31-60K2-0000

General Electric Contactor CR360ML212, 30A, 600V, 120V Coil

Viking Inline Gear Reducer 3-551-007-765-CA, Ratio 7.65

Viking Inline Gear Reducer 3-551-007-765-ED, Ratio 7.65

Viking Inline Gear Reducer 3-551-007-765-DS, Ratio 7.65

Viking Inline Gear Reducer 3-551-007-765-DU, Ratio 7.65

Viking Inline Gear Reducer 3-551-007-765-DP, Ratio 7.65

Viking Inline Gear Reducer 3-551-007-765-FN , Ratio 7.65

Ross Controls Y2783A9016

SMC AR30-N02E-Z Regulator, Relieving Type 7.25-123psi Set Pressure Range 53 scfm

CASI-RUSCO, E 2RP MICRO 5 Access Control Reader Interface, 110063

Cyberex 41-13-26-59 PC-05-2977 Board

Vickers RT 06 AI 30 593914 A985 PSI range: 80-250

Videojet Inkcore without Pump for Videojet 1710 Continuous Inkjet Printer

Eaton Cutler Hammer S, 7.5HP, 690V, 3 Phase, NEMA Type 1

Sew-Eurodrive DRN80M4/FG/DH Motor 1HP 1751RPM