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
DF DN10 Ball Valve Pn40 Size 3/8”
Lovejoy L110, 3X715, Rubber Buna-n Insert-Coupling
Bearing - 6007 - For Air Winches for Drill Floor 50449 - 2 pcs lot
NORGREN T70A3800 QUICK EXHAUST VALVE 3/8"
Square D Electrical Interlock Class 9999 Type SX-8 Series B
PepperlFuchs NJ10-30GK-N Part No.106476 Proximity Switch
Quincy 124349-005 Fit T Elbow Fills
Solid State Relay - Gordas Arkansas - GB2200-1005-4-03 - 120 VAC - 10 A
Emerson EK-053 Liquid Line Filter Drier
Xzound Glass Fuse 30 AMP G Plated 42982 5Pcs Lot
Steven Label 562-236-4700 - 100pcs package
EGO 55.10219.220 THERMOSTAT DUALIT 200703 SPEED CONTROL KNOB T150 0202
Cutler-Hammer Quicklag 15A Circuit Breaker
Daikin 292114 Gauge Joint 20404149 D24U56
Victor Style Cutting Torch Tip For Acetylene 4-1-101 - 2414 - 3pc lot
FINDER 56.34.9.110.0040 RELAY 110VDC 12A 250VAC MADE IN EU-01
ABT Ball Valve 3/4" PN32 500PSI
HPC - OT2M 2602D69G03 Contact Block
Maxus MXS11001 Abrasive Blasting Kit
JQX-13F RELAY 24VDC
Telemecanique LA1 DN 22 P Contact Block LA1DN22P
Furnas 52PA4E2 Red Pilot Light 120VAC/VDC Series B
Potter Brumfield KUP-14A55-6 3A 1/2HP 600VAC
Potter Brumfield KUP-14D15-24 24VDC
Potter Brumfield KUP-14D15-24 24VDC
Westinghouse MSF01 Pole Manual Starter 1 HP 115-230 VAC
Cema Push Button Green Pilot Light P9XU Italy
Allen Bradley W63 Heater Element Relay
Dayton 5YR36 Relay 6 VAC 50/60 Hz
Allen Bradley 800H-JR5KC7
Kuhnke Z396 Relay Base
IDEC IZUMI ASTN Selector Switch 41 – 10570
Apex Dayton 16-463 Universal Joint
Ingersoll Rand 54672654 Coolant Filter
Resistor RWH60G 2.4 SEC 01
Impact Screw Driver Bits Set 1/2" RS No. 541-6539
Geberit 68307 Mapress 90 Degree 2PCs In Lot
TB Wood’s L09558 L-Jaw Hub L095 x 5/8
TB Wood’s L095118 L-Jaw Hub L095 X 1 1/8
Wika 0-600Psi 0-40Bar Pressure Gauge Hamworthy HCY31019
Parker CB252HL001 Cylinder Body Seal Kit NOV 108894B35
Telemecanique GV1-M06 Circuit Breaker GV1-A07 Ith 6A Ui 660V
Allen Bradley 595-BB Auxiliary Contact Size 0-5 600Vac Max
Products Unlimited P/50182 Power Relay Coil Coil 208/240 VAC 50/60 HZ P50182
Oil stainer - Filter Hamworthy HC15342
E-T-A Circuit Breaker 5A 333-265 - Indonesia
PARKER 8-8F3MXSS FLUID CONNECTORS
RS COMPONENTS 348-762 Industrial RELAY 10A - Coil: 230VAC 50/60 HZ DPCO
Cat 165-3925 Bolt hex hea
C3 CONTROLS SWITCH SELECTOR SS03-ASHWE-NO/NO 30MM 3 POS SEL SW ALUM CR KNOB HAN
Potter Brumfield KRP11A 120V 50-60Hz
Potter Brumfield KRP11A 120V 50-60Hz
Timken Roller Bearing NTA-3244:L001
Reducer Pipe 56700-8-6-S - 1/2" x 3/8" - 6 pc lot
SNR 6309 Bearing MADE IN FRANCE
C3 CONTROLS 13SBLW24ST-13CRR WHITE INDICATING LIGHT
2202 - 9945 Grayhill Push Switch
E-T-A Magnetic 82034-20 PHM-1 Circuit Breaker
KEYSWITCH KMK3P RELAY 24VDC
SSAC Digi-Set TDML120AL 120 VAC Time Delay Relay - Made in USA
E.G.O. 55.18022.010. THERMOSTAT 110°C
Industrial Control Equipment ED32-M90 Overload Heater
Schneider Electric C60 Multi 9 Ciruit Breaker 3 pcs (2pcs 3A - 1 pc 10A) France
Allen Bradley N16 Overload Relay Heater Element - 2 pc lot
Coil 115V 60 Hz - General Electric - 55-000001G002
Flush Pushbutton (momentary) Red - 399-2665 - Eaton M22 Type
Omron MY4N Relay with Base 3179Y1 Japan
Omron MY4N Relay with Base 3179Y1 Japan
SCHNEIDER ELECTRIC IC60N-B-4A CIRCUIT BREAKER
SQUARE D 110 VDC 120VAC SERIES A SOLID STATE TIMING RELAY 850A JCK-11
Suction House Seal 801480-4 Ehras Power Unit
Eaton Selector Switch - M22-WRM22-A Made in Germany - 399-3214
Hubble HBL1201 Switch Single Pole
White-Rodgers Steveco 90-341 RBM Type 91 Relay
Needle Roller Bearing Timken NTA-2840-001
Hirschmann Coaxial Cable Connector 7.8mm KOK 3 N - 947 546-100 775-956 - 5 pcs
Carling Switch 2GK91-78-XG - 10C569 - Carling Technologies
MY Series Relay Socket RS 803-376 - 7A 250VAC
Honeywell MLH05KPSCDJ1257 Pressure Sensor
ITT MCDONNELL MILLER AFE-1-122 Paddle Kit - 808300
Timken 24720 Bearing
IDEC RY2S-U RELAY 24VAC
IDEC RY2S-U RELAY 24VAC
100906-001 Roller Jaw 2 IN OD F/9-5/8 IN TO 20 IN JAWS
Needle Roller Bearing Timken TRD-3244:L051
RS COMPONENTS 348-778 RELAY 10A - Coil: 115VAC 50/60 Hz DPCO
- Potter Brumfield - R10-E1X4-V185 - 12V DC - Relay -
Uchiyama Mfg.Co Hicut Fuse UHF-130-1 AC130V 150 A
SCHNEIDER ZB5 AZ101 ELECTRIC SWITCH CONTACT BLOCK 10A With 2 ZBE-101
Schneider MCB 32 Amp 2 Pole Type B 32A Multi9 C60HB132 Merlin Gerin 24136
Victor Style Cutting Torch Tip For Acetylene 0-1-101 - G Series - 2pc lot
FAG 6303.C3 Radial Ball Bearing
Sanyo CR17335SE(3V) Laser Lithium Battery
800T-N326 Pilot Light Accesory
Quick Coupler Female Ball 1MDG7A 3/8" F Type: AL-QC3/8B Press4000PSI Temp: 300F
Schneider Electric CA2KN22G7 Control Relay 120V 50/60Hz 10A
Parker 8BF8-316 - A-LOK - MK10278 - SS - Qty- 21 pcs
SLOAN A-1010-A ROYAL FLUSHOMETER SPUD COUPLING FLANGE KIT FOR 1-1/2'' SPUD
FUSE LEGRAND C.E.I. 269.2 NFC 63210 CARTOUCHES FUSIBLES - 125A - 22X58 M
IDEC RH1BUAC24V Industrial Control System
C3 Controls FVLU24 24 AC-DC LAMP FVB 24 3W MAX
Ermeto Fitting GE-10-PLM
SKF CR 13538 USA - Oil Seal - CRW1 V
Telemecanique ZBZ-VG X1 120V~
Cema Push Button Green Pilot Light P9XU AC/DC 380V Max, BA9s 2W Max
Schneider Electric A013250 Contactor LC1D09
Brush Her Assembly N093746 for Dewalt / Black Decker
Mahle KX65D Fuel Filter
CEMA P9XUD0 Pilot Light AC/DC 380V MAX
Allen-Bradley 40309-108-51 Real Part Mounting Hardware
LG Lamp Lens Green 05-0003-00
Dayton Motor Run Capacitor 2MDY5C 440vac - 60/50 Hz temp 85C Non PCB
Needle Thrust Roller Bearing Cage Roller O/D 63mm I/D 45mm KOYO NTA-2840:L125
C25CNB 125T D Cutler-Hammer Definite Purpose Contactor - Open Type - Coil 24V
EE CONTROLS CB32A2PC 2 POLE 32 AMP 480 V CIRCUIT BREAKER
KUHNKE UF2-24VDC1FL RELAY 10A 250VAC
Hubbell HBL5366C NEMA 5-20P 20A - 125VAC AC Plug
Hubbell HBL5366C NEMA 5-20P 20A - 125VAC AC Plug
Eaton AirFlex 3/4 QRV End Cap Kit P/N 145141DP
General Regulator Toggle Switch X-70617-01 Uno Lab Inc.
Weller Replacement Tiplet To Fit Models DS108/DS601P/DS2001
Siemens 3SB35 00-3PA11 Selector Switch 2 Positions Black Lever 3SB35003PA11
Dwyer A-483 Conduit Fitting Adaptor 1/2"
Allen Bradley 184848 Replacement Kit
FUSE LEGRAND C.E.I. 269.2 NFC 63210 CARTOUCHES FUSIBLES - 40A - 22X58 M
MAAG EXTREX EX 45-5 GP PLASTIC ALLOY GEAR PUMP
AR-50-2500 AIRCEL REFRIGERANT AIR DRYER
HENGSTLER ENCODER AX71/1214EK.42DPX-F0:5604 NOV
CAT 3520 PLUNGER PUMP