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

MBRAUN Universal Gas Probe MB6000263 UGP-OX-EC, NW40 X 1/4" SWAGELOK (2X)

MC DANIEL CONTROLS INC. 0-6000 PSI PRESSURE GAUGE 316SS TUBE & SOCKET

MC1225L MOTOROLA IC CHIP 16 PIN CERAMIC DIL UK STOCK (x1) fd7d104

MC68HC21P ORIGINAL MOTOROLA PARALLEL INTERFACE CHIP UK STOCK x1 fcb16.38

MC88100RC20 MOTOROLA COLLECTIBLE CERAMIC GOLD PGA RISC PROCESSOR fcb28.13

MC88100RC25 MOTOROLA COLLECTIBLE CERAMIC GOLD PGA RISC PROCESSOR fcb28.14

MC88200RC20 MOTOROLA COLLECTIBLE CERAMIC GOLD PGA CACHE CONTROLLER fcb28.11

MC88200RC25 MOTOROLA COLLECTIBLE CERAMIC GOLD PGA CACHE CONTROLLER fcb28.12

McDONNELL DOUGLAS PCB Board, 12464-A69G0739-1, PDI93-32,  #1225Z4

MCE/DML Microwave DMS7067 High Power Amplifier

MCG DRIVE MICROSTEPPING, MSD80L,

MCG MICROSTEPPING DRIVER, MSD25C, IM483, A48011453, #1625AD

MCG Motor Part No. 1674-ME5027

MCJUNKIN CORP TN 372 9-03

MCM8HA BOARD MCM8H1

MCMAHF BOARD MCMAHX-1

McMASTER-CARR 54875K FLEXIBLE HOSE WITH SS WIRE BRAID CVR ID 2" 35" LG

MCMASTER-CARR SUPPLY CO. COV1313Z1 10 PACK

MCMASTER-CARR SUPPLY CO. COV1313Z1PACK

MCP Lab Electronics SG1638N Function Generator Counter

MCVAC Feedthrough 2.75” CF 1 MicroDot to BNC connectorCajon 1/8" comp#1609QG

MD TOTCO 40219493-012 REV.E PC BOARD

MDA SCIENTIFIC EXHAUST GAS MONITOR

MDC 0015-66003-E1 AS PHOTOS

MDC 0015-66003-E1 AS PHOTOS  

MDC Angle Valve 1.5" HV Pneumatic 2-3/4" CF, AV-150-P & Humphrey 31039RC

MDC Angle Valve HV Pneum, NW80, MDC LAV-300-PAA-01, 311079-01

MDC Angle Valve HV Pneum, NW80, MDC LAV-300-PAA-02-03, 311079-09,

MDC GATE VALVE CONFLAT 2.75", GV-1500M-P-03, GV1500MP03,

MDC LIV-250-PAA VACUUM VALVE

MDC Tee Reducer NW63 x NW25, 824020, L250-3-K100, L2503K100, #138E

MDC Vaccum Angle Valve NW25, KAV-100-P-OPT2, KAV-100-P-0PT2,  #103X

MDC Vacuum All Metal Angle Valve 1.33" CONFLAT, MAV-075-V, 314001, #1174N10

MDC VACUUM CenteringRing NW200 Red Silicone, SST, L800-CR,  6 #137L44

MDC VACUUM CenteringRing NW200 Viton, SST, L800-CR, #137L43

MDC VACUUM Inline Valve 1.5" HV, Manual 2.75" CONFLAT, IV-150, 320018 #BOX 1 "E"

MDC VACUUM Inline Valve, 320021, IV-153,

MDC/SWAGELOK Adapter NW100 x 3/8" Ultra-Torr Fitting (4X) E05379-01, #118P7

MDO4EW BOARD MD02E1 PMD

M-DRV-MSD CP-020012-3 BOARD,FOR ULVAC RF MATCHING BOX

ME MECC 05R-RAMP-AMP 030602B BOARD

ME MECC COMMON AMP 980413E BOARD

ME MECC DRIVE AMP 980412B BOARD

ME MECC VIDEO AMP 980411E BOARD

MEAN WELL SDR-480P-24, SDR480P24, AC/DC DIN RAIL SUPPLY 24V 480W,

MEANWELL NPB-450-12 HIGH RELIABLE INTELLIGENT BATTERY CHARGER

MEASUREMENT COMPUTING PCI-DIO96H DIGITAL INPUT OUTPUT PCI CARD D1096H ae1T21

Measurement NTC Thermistors PRO2-PROBE, GA10K4D25 ( 250)

Measurement NTC Thermistors PRO2-PROBE, GA10K4D25,  #1534Q28

MEASUREMENT PLC PS3800-DC & MS3804 (3X),CH,  #1181M

MEASUREMENT PLC PS3800-DC, 8 CH, PS3800DC, NOBOX,  Rack H #1J

MEASUREX 08454900

MEASUREX 09437300 (AS PICTURED) REV. H

MEASUREX 09437710

MEASUREX 09472000 REV. B (AS PICTURED)

MEASUREX 09806710-RP

MEASUREX FIBEROPTICS COMMUNICATION PC BOARD 05356601 Rev C #1602AB

MECAPION APD-VS10(I5)N 6.4A AC SERVO DRIVER POWER ON

MECAPION APM-HC07HC(15)H AC SERVOMOTOR

MECAPION METRONIX ANYPACK VS04H2NL APD-VS04N(H2)N AC SERVO DRIVE  

MECMAN 563-301 000-2 SOLENOID VALVE

MECMAN H-DBVP WUVP.1NEO16 PRESSURE RELIEF VALVE

MECO-G R-3501DC RESCALABLE DIGITAL PANEL METER RANGE 0-10 VDC

Mecos Traxler Ag DP99, 40.691.03, S-side 970290, , #1602E

Mecos Traxler Ag, AMB Electronics MBE3-140, Boot-Version V10,

Mecos Traxler Ag, AMB Electronics MBE3-140, Boot-Version V10, Turin465a, Rack F

MECS CORPORATION CS-1000 Control Panel SB101

MECS CS-1000 CONTROL PANEL SB101 & CABLE

MECS CS-1000A CONTROL SYSTEM,UTW2000HG ROBOT CONTROLLER

MECS CS-1000A ROBOT CONTROLLER GS100 CPU2000, CONT-1000, CW-1000 BOARD  #

MECS CS-1000A ROBOT CONTROLLER GS100 CPU2000, CONT-1000, CW-1000 BOARD

MECS CS-1000A ROBOT CONTROLLER GS100 CPU2000, CONT-1000A1, CW-1000 BOARD

MECS CS-1000A ROBOT CONTROLLER GS-100,GS100

MECS CS-1000A ROBOT CONTROLLER UTW2230LHG

MECS CS-1000A ROBOT CONTROLLER UTWN2010HG

MECS CS-1000A ROBOT CONTROLLER UTW-N2010HG

MECS CS-1000A ROBOT CONTROLLER UTXN1010HG

MECS ROBOT CONTROLLER BOARD RS232C-1, EXT-1

MECS ROBOT CONTROLLER BOARD UTX-2000A

MECS ROBOT CONTROLLER EMIF-1000A, UTW-3000A BOARD

MECS ROBOT CONTROLLER EXT BOARD

MECS ROBOT CONTROLLER MB-1000 BOARD,FAN:R87F-A1A93HP

MECS ROBOT CONTROLLER MODEL UTW1010HG

MECS ROBOT CONTROLLER PULSE-2000 BOARD

MECS ROBOT CONTROLLER UTW1010HG FRONT COVER MISSING.

MECS UTV2500T ROBOT & CONNECTORS

MECT MICRO DISPENSER MD-91T

MEDAR KIT-3005/T93301 830-0168V2 120VAC

MEDIAMATE 9308905 PRESSURE VALVE 0-200 PSIG

Medigus Introspicio 1.8 mm camera processor control,

Medigus Introspicio 3.0 mm camera processor control,

MEDOPTICS CORPORATION PS-CAL, Power Sensor RF power meter RF Sensor,

MEGGER ET3/2 HAND CRANK EARTH RESISTANCE TESTER & CASE ad2#20

Megger MLS1000 DUAL LASER FIBER OPTIC LIGHT SOURCE ad1m31

MEGNAJET MAS-900-411-K

MEI Motion Engineering XMP-PCI Board 1007-0034-3 ASSY P/N A040-0001

MEI PCX/DSP 1007-0011 REV:4.1 A003-0006 REV:5 BOARD

MEIDEN C72P30162,PP2D-DN143-1 BOARD

MEIDEN II01AM-54,QPC356/1 PH REV:A BOARD

MEIDEN II03ZM-01 MC CPU BOARD

MEIDEN JZ29A-01 BOARD MU24A30756 SU22A31138 B

MEIDEN PC30-1701,SE1D-AC08 BOARD

MEIDEN SCV-103. 3C82HEW-CD,VEXTA PK266-02AR22,HEDS-5540-H14

MEIDEN SCV-103.3C82HEW-CD CAPACITOR

MEIDEN SCV-205H82W-B2 CAPACITOR,PK266-02AR22,ENCODER HEDS-5540-H14

MEIDEN SCV-271H94L-B2 CAPACITOR ASSY,KZ-036-30,SCV-51HBSN,2EA STEPPING MOTOR

MEIDEN SCV-271H94L-B2 CAPACITOR ASSY,KZ-036-30A,SCV-51HBSN,2EA STEPPING MOTOR

MEIDEN SCV-302P110 VACUUM CAPACITOR VEXTA C064Z-9212PE MOTOR

MEIDEN SCV-515H70-B2 CAPACITOR,PK266-02AR22,ENCODER HEDS-5540-H14

MEIDEN VACUUM CAPACITOR SCV-520M 5kV-2000pF COVER DENTED

MEIDEN YX17ZM-01 REV:A YX17ZM DISK MIRROR BOARD [A204217]

MEIDEN YY21Z,SU22A32176,MU24A31255 BOARD

MEIKO 0113200 SOLENOID VALVE

MEIKO 0465038 TEMPERATURE GAUGE 100-210°F

MEIKO 8103388 CLUTCH BACK PART CSS-ARM RUCKTEIL FOR K200 DISHWASHER

MEIKO 9615751 MIKE2-EEPROM FOR DV120-2,DV120-2T,DV80-2,DV80-2T,FV130-2,FV40-2,FV

MEIKO MIKE 2-CPU 1 DISHWASHER CONTROLLER 9608942

MEIVAC CAPACITOR SCV-125H65UWA-B3,VEXTA PK266-02AR22

MEIVAC SCF-152Z

MEIVAC SCF-152Z VACUUM CAPACITOR  RF ASSY PARTS FOR DAIHEN MATCHERFRM-30A1

MEIVAC SCV-201H82LBSN VACUUM CAPACITOR

MEIVAC SCV-201H82LBSN,SCV-51HBSN +2EA STEP MOTORS ASSEMBLY FOR DAIHEN RF MATCH

MEIVAC SCV-201H82LBSN,SCV-51HBSN PK244PA [2EA] ASSEMBLY

MEIVAC SCV-201H82LBSN,SCV-51HBSN,2EA PK244PA,KZ-036-18A ASSEMBLY

MEIVAC SCV-201H82LBSN,SCV-51HBSN,KZ-036-02,CAPACITOR ASSY

MEIYO ELECTRIC PTR M RESISTANCE BULB

MEIYO ELECTRIC RESISTANCE BULB PTR-A11 P 6ma

MEJIRO M-Visual Light Source MVL-210 LAMP LIFE TIME 0h  

MEJIRO M-Visual Light Source MVL-210 LAMP LIFE TIME 173h   

MEJIRO M-Visual Light Source MVL-210 LAMP LIFE TIME 1h  

MEJIRO M-Visual Light Source MVL-210 LAMP LIFE TIME 587h   

MEJIRO M-Visual Light Source MVL-210 LAMP LIFE TIME 758h