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

Shakti 98301 Submersible Motor Premium 4" 1HP Stainless Steel RPM 3450 230V

Shanley Series 3LS Three Rotor Screw Pump for High Viscosity Fluid Pumping

SharewellHDD Lo Torque Hole Opener Cutting Head LT4-85 Type 5

SharkBite 1/2"x 1/2"FNPT PEX-A Expansion Drop Ear Elbows UAB334LF

SHARP LJ64HB34 DISPLAY

SHARP LQ104V1DG11 10.4" LCD DISPLAY SCREEN 5 V 60 HZ 640 X 480

SHARP LQ104V1DW02 TFT 10.4" LCD DISPLAY PANEL

SHARP LQ150X1LG8 MONITOR

SHARP LQ197V3GZ83 LCD MONITOR

SHARP ZM-382SA LCD CONTROL TERMINAL 24VDC 12.1" DISPLAY

SHARP ZM-382SA LCD CONTROL TERMINAL 24VDC 12.1" DISPLAY #2

SHARP ZM-582SA LCD CONTROL TERMINAL 24VDC

SHARPE 1 1/2" Piston Check Valve 800# Socketweld Stainless Steel A182 24836

Sharpe 2 1/2" 150LBS Flanged 316 Stainless Steel Ball Valve 275PSI @ 100°F 150#

Sharpe 2" 3 Piece 1000 WOG Series 13 CF8M 201 Ball Valve S2BGB

Sharpe 2" Stainless Steel Flanged Firesafe Ball Valve B16.34 CF8M FS50 150 ANSI

Sharpe 4371001420 2" Fnpt Forged Carbon Steel Piston Swing Check Valve

Sharpe Valves 2" CF8M 2000 WOG Ball Valve Full Port 4353010220 Stainless Steel

Shars 8" 4 Jaw Self Centering Scroll Lathe Chuck Solid Jaw 2000RPM 202-5474

Shars CS83 8" 3 Jaw Cast Steel Self Centering Scroll Lathe Cuck

SHC S.HEMMELSTEIN & CO. 6-201 TRANSDUCER AMPLIFIER

Shear Bolt Fasteners HS6035-01 SLB488-01 For AH64

Shearbar 26890 For Dion 2430 F41 Scorpion 300 350

Sherex Fastening Solutions Rivet Nuts Semi-Hex Body CAH2-580-3.3B

Sherwin Williams MIL-DTL-24441D/30B 640182325 Epoxy-Polyamide Type IV Hardener

Sherwin Williams MIL-DTL-24441D/30B Formula 152 Epoxy-Polyamide Paint Type IV

SHIBAURA CRA-1038 COMPO ARM

SHIMADZU ET-35A OIL CONTENT METER

SHIMADZU GT-104 GASTORR DIGASSER

SHIMADZU LC-10AT LIQUID CHROMATOGRAPH

SHIMADZU LC-10ATVP LC-10AT VP LIQUID CHROMATOGRAPH

SHIMADZU LC-6AD LIQUID CHROMATOGRAPH

SHIMPO FGE-10X DIGITAL FORCE GAUGE

SHIMPO FGE-5X DIGITAL FORCE GAUGE

SHIMPO FGV-1A DIGITAL FORCE GAUGE

 SHINDENGEN ELECTRIC FY153R7-1 FY153R7-1GN POWER SUPPLY 100-240VAC 1.1-0.8

SHINKO ACCU-CONTROL JCD-33A-A/M TEMPERATURE CONTROLLER 0-50 C

SHINKO VIBRA KFBII-6000S ELECTRONIC BALANCE

Shnoble Tone Optical Compressor for Pedalboard 9V

SHOCK JAKE'S LONG TRAVEL LIFT KIT SHOCK ABSORBER FOR EZGO 1994.5-01.5

SHOCKWATCH EQUIPMANAGER REMOTE SENSOR UNIT

Shoup SH869097 Right Concave High Moisture Corn Grain Round Bar 800-627-6137

Showa Power Trim And Tilt Assembly OS088 Honda Marine BF90D 90HPSEE DESC

Shultz Air Compressor Pump MSL-10Max Cast Iron 140 PSI 2HP 1 Stage 931.8090-0

Shurjoint 1SS200025002 SS-20 Series 2-1/2" Grooved Tee 316 Stainless Steel

Shurjoint 4" Direct Flange To Groove Adapter For Copper Tubing C341

Shurtape DC 181 Listed/Printed Film Tape 72mm x 110m Black

Shuster Chain Wheel CW310A 5 1/2"OD 2"Bore

Siba 3010013.160 Fuse Link 160A 3/7,2kV 63 kA Back-Up

SICK 30V Class 2 Photoelectric Color Mark Sensor KT10W-291115

SICK C4000 BEAM SENSOR C40S-0701AA030

SICK C40E-0701AH030 RECEIVER C4000

SICK C40S-0703CA010 LIGHT CURTAIN

SICK CLV250-2020 BARCODE SCANNER 24VDC 7.5W

SICK CLV431-1910S01 RASTER SCANNER

 SICK CLV480-1010S01 SCANNER PN 1025494

SICK CLV480-1010S01 SCANNER PN 1025494

SICK CLX200-1041 CONTROLLER 115VAC 50/60HZ 30VA

SICK CLX200-1041 CONTROLLER 115VAC 50/60HZ 30VA

SICK DME5000-113 LONG DISTANCE SENSOR 18-30V

Sick Encoder SFS60-HKKT4K02 Motor Feedback Systems Rotary Hiperface 1066193

 SICK FX0-GENT00000 1044072 SAFETY CONTROLLER

SICK FX3-CPU130002 1043784 SAFETY CONTROLLER

SICK HLG2-050F811 (1029853) Switching Automation Light Grids Trans. and Receiver

SICK ICI890-01100 CAMERA LIGHT

SICK IDM260-100H BARCODE SCANNER

SICK IDM260-411S BARCODE SCANNER

SICK LGTE060-231 TYPE 2 RECEIVER

SICK M4000 M40E-034010RR0 LIGHT CURTAIN RECEIVER

SICK Measuring Wheel Incremental Encoder DUV60E-D4KZHAZASC3 SEE DESC

SICK MICS3-CBAZ55ZA1 MICROSCAN3 SAFETY LASER SCANNER #1

SICK MICS3-CBAZ55ZA1 MICROSCAN3 SAFETY LASER SCANNER #2

SICK MICS3-CBAZ55ZA1 MICROSCAN3 SAFETY LASER SCANNER #3

SICK MICS3-CBAZ55ZA1 MICROSCAN3 SAFETY LASER SCANNER #4

SICK MSC800 CONTROLLER P/N 2042329

SICK MSC800-2210 MODULAR SYSTEM CONTROLLER

SICK MSLS03-24071 LIGHT CURTAIN

SICK OPTIC ELECTRONIC DGV30-5SD01500 ENCODER

SICK PFT 6048847 PRESSURE SENSOR

SICK Photoelectric Proximity Sensor WTB4lC-3P2261B01

SICK PLS101-312 PHOTOELECTRIC SAFETY LASER SCANNER

Sick Position Sensors, Measuring Range 50mm MPS-050CLTP0

SICK RFU63Q13101 P/N 1054397 RFID CONTROLLER

SICK S30A-4011BA SAFETY LASER SCANNER

SICK S30A-4111CP SAFETY LASER SCANNER

SICK S30A-6011BA SAFETY LASER SCANNER

SICK S30A-6011BA SAFETY LASER SCANNER

SICK S30A-7011BA SAFETY LASER SCANNER

SICK S30A-7011CA SAFETY LASER SCANNER

SICK S30B-3011BA SAFETY LASER SCANNER

SICK SIM2000-3L10A00, 1117588 SIM2x00 Sensor Integration Machine

 SICK UE410-4RO3 6026143 OUTPUT RELAY EXPANSION MODULE

SICK UE4120-01BC600 SAFETY CONTROLLER

SICK UE4740-22H0000 ENHANCED FUNCTION INTERFACE PROFINET IO/PROFISAFE

 SICK WT12L-2B540A01 PROXIMITY SENSOR

SICK XC40E-0903A0A0CBC0 XC40S-0903A0A00BA0 SAFETY LIGHTCURTAIN SET

SIEB & MEYER CSS 90 K256956 POWER SUPPLY PROCESSOR

SIEB & MEYER CSS 90 STATION I/O BOARD 43.01.05.2

SIEB & MEYER CSS 91 K258935 SPINDLE PROCESSOR DRIVE BOARD

SIEB & MEYER CSS 91 K259937 SUPER VISOR SERVO DRIVE BOARD

SIEB & MEYER R-SERVO 2.1 SERVO RESOLVER MODULE CIRCUIT BOARD 26.39.058.2

 SIEI TV0 P/N S5B22 POWER BOARD 220VAC IN, 10VDC OUT, 50/60HZ

Siemens 125H Circuit Breaker 3VA5 Frame 3P 500/600V

SIEMENS 153-2BB00-0XB0 SIMATIC ET 200M MODULE INTERFACE

Siemens 1FK7083-5AF71-1EB0 Simotics S Synchron ServoMotor SEE DESC

SIEMENS 1FT6044-4AF71-4TB6Z-K23+X04 SERVO MOTOR 3000 RPM

SIEMENS 1FT7086-5AF74-1MB2-Z N16 SYNCHRONOUS MOTOR

SIEMENS 1FT7086-5AF74-1MB2-Z N16 SYNCHRONOUS MOTOR #2

Siemens 3RP2505-2RW30 Programmable Time Delay Relay 240V ac/dc 2 Contacts

 SIEMENS 3RV1031-4FA10 CIRCUIT BREAKER

SIEMENS 3RW4028-1BB05 SOFT STARTER 38 AMP 22 KW/500VAC 24 VDC CONTROL SUPPLY

SIEMENS 3SK1211-2BB40 SAFETY RELAY

SIEMENS 3TF5022-0AJ1 CONTACTOR MODEL COIL 115V 60H

SIEMENS 3TH43 10-0AK6 CONTROL RELAY 110-120V 50-60Hz

 SIEMENS 3UF7010-1AB00-0 SIMOCODE PRO V PROFIBUS DP

Siemens 3VA5210-6ED61-OAAO 100AMP 3 Pole Molded Case Circuit Breaker

Siemens 3VA5217-ED3 Molded Case Circuit Breaker

SIEMENS 462008.7600.57 CONTROL CARD for 6SN1145-1BA02-0CA0 SERVO DRIVE

SIEMENS 4620087950.40 PC BOARD for 6SN1145-1AA00-0AA0 SERVO DRIVE

SIEMENS 627B 6ES7647-6BG53-0DB2 SIMATIC BOX PC COMPUTER BPC

Siemens 63SD(M178) 63 Series Differential Type Flow Controller

SIEMENS 642-0DA01-1AX1 SIMATIC HMI OPERATOR INTERFACE PANEL

Siemens 656-0017 2-Way No Angle Union Valve 1/2" 2.1CV 3-8PSI

SIEMENS 6AV1132-0DA10 OP1 - 240/5 OPERATOR PANEL #2

 SIEMENS 6AV2 124-0QC02-0AX0 SIMATIC HMI TP1500 COMFORT PANEL 15 INCH

SIEMENS 6AV2 124-2DC01-0AX0 4 INCH OPERATOR INTERFACE

SIEMENS 6AV2 125-2GB23-0AX0 SIMATIC HMI KTP700F MOBILE

SIEMENS 6AV6 545-0BC15-2AX0 SIMATIC TOUCH PANEL TP 170B COLOR

SIEMENS 6AV6 647-0AK11-3AX0 SIMATIC TOUCH PANEL KTP400 BASIC COLOR PN

SIEMENS 6AV6 671-5AE11-0AX0 CONNECTIVITY BOX PN PLUS

SIEMENS 6AV7240-3BC04-0HA0 4G OPERATOR INTERFACE 15 INCH SIMATIC HMI

SIEMENS 6AV7240-3DC07-0HA0 4G OPERATOR INTERFACE 19 INCH SIMATIC HMI