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
EZW-T10C-EH,10" Color TFT HMI, Fanless Windows 7 Embedded PC HMI
Rosta 07171105 ABI 50 Oscillating Mounting
Teral Kyokuto Inc LFO65A-1.5-50 Coolant Pump 50/60Hz, 1.5kW RSIP
Rexroth CSH01.2C-PB-ENS-EN2-CCD-NN-S-NN-FW Indradrive FNOB
Assured Automation H36CPFB7A 36 Series 316 SS, 2-way Ball Valve
Assured Automation IFKWVPPB7B FK Series Butterfly Valve
Assured Automation JHPW63RF8SO High Performance Butterfly Valve
Assured Automation JHPW63RF8SC High Performance Butterfly Valve
Assured Automation JFKLEPPB7A FK Series Butterfly Valve
Assured Automation HMPF300SFAM MPF Series SS 3-way Ball Valve
Assured Automation HMPF300SFDM MPF Series SS 3-way Ball Valve
Assured Automation HMPF300SFEM MPF Series SS 3-way Ball Valve
Assured Automation HMPF300SFFM MPF Series SS 3-way Ball Valve
Assured Automation HMPF300SFGM MPF Series SS 3-way Ball Valve
Assured Automation JP2PVSXB7B P2 Series PVC, 2-Way Ball Valve
GE Fanuc TGT-000A-4-0-AA AXIS Motion Control Module USIP
STRYKER INSTRUMENTS 940 Cast Saw FNOB
Assured Automation F33DDXB7B 33D Series 3-way Ball Valve
Assured Automation F33DEXB7B 33D Series 3-way Ball Valve
Assured Automation F33DFXB7B 33D Series 3-way Ball Valve
Assured Automation F33DGXB7B 33D Series 3-way Ball Valve
Assured Automation IP2CESXB7B P2 Series PVC, 2-Way Ball Valve
Ina F-319587.RUE55-E Linear Guide Assembly FNOB
Allen Bradley 1395-A65-D1-P12-P50 USIP
Allen Bradley 1395-A65-D1-P12-P50 6276
Assured Automation J150FCSP6D 150F-300F Series 2-way Ball Valve
Mitsubishi MR-H22KA-S92-P61 AC Servo Drive, 126 Amp Output 9255
Sanyo Denki AP-3M160BTCT AC Servo Motor, 1.6kW, 9.6A, 2000 RPM USIP
Panasonic SF2B-H88-N Type 2 Light Curtain - Hand Protection
Panasonic SF2B-H88-P Type 2 Light Curtain - Hand Protection
Assured Automation IP2CENXB7A P2 Series PVC, 2-Way Ball Valve
Heidenhain Corp 760907-11 (Absolute Linear Encoder FNIP
Lincoln Electric 11730 Autodrive 19 Controller, K3004-1, 40VDC USIP
Parker 4MAJ-1P4MA0025289 Pneumatic Cylinder USIP
Nachi Fujikoshi Corp PVS-2A-35N2Q1-12 Hydraulic Piston Pump 7481
Panasonic SF2B-H96SL Type 2 Light Curtain/Series Connection
Allen Bradley 1395-A65-D1-P12-P50-X1 USIP
Yaskawa USAMED-09BS2TD AC Servo Motor FNIP
Fanuc a06b-0351-b731 USIP
Assured Automation MHPW61RF8D High Performance Butterfly Valve
Nachi RFX1140TC Servo Amplifier 2520
Mazak 13CTV Robot Wrist FNIP
Nachi ROP851-15M Teach Pendant USIP
Sti MS46SR-20-1215-Q2-R-NC-FP Light Curtain Receiver USIP
Leeson Electric Co C184T34FB20B General Purpose Motor FNOB
Atlas Copco 4240-0701-00 Controller, 200-480VAC, 20 AMP FNOB
Graco 237-564 President Pneumatic 2-Ball Piston Pump USIP
Crevis ST-2328-CB of 10 FNOB
Rexroth R159114030 Pillow Block Bearing Unit FNOB
Assured Automation JP2PVNXB7A P2 Series PVC, 2-Way Ball Valve
Techniks EET-3090 ElectroMag Chuck (12 x 35)
Sanyo Denki 20BM040HXDT0 BL Super Servo Motor FNIP
SMC CDNSF125-210-D Power Lock Cylinder FNOB
Nord SK02050AZMHD-63L/4CUS Gear Motor 0490
Assured Automation IHPW63RF6SC High Performance Butterfly Valve
Assured Automation IHPW63RF6SO High Performance Butterfly Valve
Assured Automation KHPL63RF8D High Performance Butterfly Valve
F3130-06-LGY-100M White Hose FNFP
Assured Automation KP2PESXB7A P2 Series PVC, 2-Way Ball Valve
Desoutter 6151654600 Ecs-current Controlled In-line Screwdriver USIP
Grundfos MTR10-12/2 D-M-A-AQQV Immersible Pump FNIP
Fanuc A06B-0505-B072 AC Servo Motor 3-Phase 1500RPM USIP
Assured Automation KP2CENXF6SO P2 Series PVC, 2-Way Ball Valve
Assured Automation KP2CENXF6SC P2 Series PVC, 2-Way Ball Valve
Toyooki Kogyo HMD-7-025-03TY2 Hydraulic Valve USIP
Gusher PCL1.5X3-8SEH-C-A Centrifugal Pump FNIP
Assured Automation NFKLEPPG FK Series Butterfly Valve
Sanyo Denki 61BM330BBAT0 AC Servo Motor 4.3kW FNFP
Nexen Group 923700 Friction Clutch FNOB
SMC VV5QC41-04-DUX00551 of 2 Custom SMC Assemblies FNOB
Mitsubishi Electric FR-A840-7.5K-1 Variable Speed/Frequency Drive FNOB
Assured Automation LHPL13RF8D High Performance Butterfly Valve
YASKAWA 169334-1 HW1171418-B MAIN WIRING HARNESS ROBOT PARTS AC 9755
Assured Automation IFKLEPPB7A FK Series Butterfly Valve
Panasonic SF4B-H80CA-J05 Type 4 Light Curtain Hand Type 1623MM QD
ANYBUS AB7831-F FNFP
Rosta 11020017 MB 50X200 Self Tensioning Motor Base
Assured Automation LFEWEPXB7B FE Series PVC Butterfly Valve
Rexroth 0608830206 SCREW CONTROL USIP
Mitsubishi Electric FR-A840-7.5K-1 Variable Speed/Frequency Drive 5914
Assured Automation JHPL13RF6SO High Performance Butterfly Valve
Assured Automation JHPL13RF6SC High Performance Butterfly Valve
Assured Automation H26NRXB7B Stainless Steel, 2-way Ball Valve
Rosta 07171112 ABI 50 Oscillating Mounting
Panasonic SF4D-A40 Type 4 Light Curtain - Arm/Foot Protection
Panasonic SF4D-A40-01 SF4D Series Robust Safety Light Curtain
Assured Automation LHPW63RF8D High Performance Butterfly Valve
Grundfos MTR10-12/2 D-M-A-AQQV Immersible Pump 5249
Obara Corp XM31X/X/B01 Welding Gun Assembly 2582
Ebara 50DVSHU61.54 3 Phase Induction Motor FNIP
General Cable 3P25P24-WH-R Category 3 Plenum 25-Pair Cable, White 7949
Shinwa HW0380393-B Gear Reducer USIP
Techniks 08340-41MS ER 40 Coolant Collet Set - 41 pieces
Assured Automation J150FCFS4UV 150F-300F Series 2-way Ball Valve
Assured Automation GMPF150CFAF6S1 MPF Series SS 3-way Ball Valve
Assured Automation GMPF150CFDF6S1 MPF Series SS 3-way Ball Valve
Assured Automation GMPF150CFEF6S1 MPF Series SS 3-way Ball Valve
Assured Automation GMPF150CFFF6S1 MPF Series SS 3-way Ball Valve
Assured Automation GMPF150CFGF6S1 MPF Series SS 3-way Ball Valve
Fanuc A06B-0315-B042 AC Servo Motor FNIP
TE-CO RWS6002 ReLock Double Station Vise
Assured Automation G36CPFB7B 36 Series 316 SS, 2-way Ball Valve
Molex 1201089137 Ethernet Net Cable, 50M of 2 FNOB
Parker MPM892BSG6G1R Servo Motor 6740
Baldor CEM7042T Electric Motor USIP
of 1500 Steel Arm Brackets FNOB
Assured Automation G300FCSB7A 150F-300F Series 2-way Ball Valve
Sanyo Denki 20bm040hxpt4 5616
Weg 02518ES3EBM284T Three Phase Motor, 25 HP, 1800 RPM USIP
Modicon 120-085-605 FNIP
Mitsubishi MR-H22KA-S92-P61 AC Servo Drive, 126 Amp Output 9014
Miller 903368 Ecoig Tig Welder USIP
Baldor HPM3714T 10 HP Electric Motor FNOB
Panasonic AIHM510 10.4" Touchscreen HM510 Touch Panel
Vickers T2M2030000216 USIP
Keyence 096310F926761A7H Laser Marker Head USIP
CKD JSC4-NV-FA-140B600-3-FL639283 Pneumatic Brake Cylinder FNFP
Mori Seiki ZL-250/600 Spindle Motor USIP
Grundfos A98606959P117150006 Multistage Centrifugal Pump FNIP
Tsurumi 80U23.7-64 Submersible Sewage Pump USIP
Baldor BC20H410-CL 8693
Panasonic SF2B-H88SL Type 2 Light Curtain/Series Connection
LEESON C6T34K1F General Purpose Motor 8462
Atlas Copco 4240-0701-00 Controller, 200-480VAC, 20 AMP 6946
Assured Automation JHPL13RF8SO High Performance Butterfly Valve
Assured Automation JHPL13RF8SC High Performance Butterfly Valve
Allen Bradley 1326AB-B4E-11-A5 AC Servo Motor, 3000RPM USIP
Assured Automation JP2PESXB7B P2 Series PVC, 2-Way Ball Valve
Weg 00318ET3ESS182TC Motor FNOB
Sumitomo FR35-C1-119 Cyclo Reducer For Kawasaki Robot FNIP
Schunk SAU50-W Swivel Unit FNIP
Parker 06.00 CJ4MAJ3R14AC 16.000 Pneumatic Cylinder USIP