描述
PLC是现代工业的三大支柱之一,是可靠性高、应用非常广泛的工业控制产品。在中大型模块化的PLC产品中,CPU模块(中央处理器)是PLC的中心。一些重大的工业生产线往往要求连续运行不能停顿,而可靠性再高的PLC也不能保证故障为零,因此,双CPU的冗余控制是一种满足连续生产要求、提高系统可用性的有效手段。下面以熔盐炉自控系统为实例详述双CPU冗余控制的实现方法。
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主营:世界知名品牌的PLC、DCS系统备件模块
①Allen-Bradley(美国AB)系列产品》
②Schneider(施耐德电气)系列产品》
③General electric(通用电气)系列产品》
④Westinghouse(美国西屋)系列产品》
⑤SIEMENS(西门子系列产品)》
⑥销售ABB Robots.FANUC Robots、YASKAWA Robots、KUKA Robots、Mitsubishi Robots、OTC Robots、PanasonicRobots、MOTOMAN Robots。
⑦estinghouse(西屋):OVATION系统、WDPF系统、MAX1000系统备件。
⑧Invensys Foxboro(福克斯波罗):I/A Series系统,FBM(现场输入/输出模块)
顺序控制、梯形逻辑控制、事故追忆处理、数模转换、输入/输出信号处理、数
据通信及处理等。Invensys Triconex:冗余容错控制系统、基于三重模件冗余(TMR)
结构的zui现代化的容错控制器。
⑨Siemens(西门子):Siemens MOORE,Siemens Simatic C1,Siemens数控系统等。
⑩Bosch Rexroth(博世力士乐):Indramat,I/O模块,PLC控制器,驱动模块等。
◆Motorola(摩托罗拉):MVME 162、MVME 167、MVME1772、MVME177等系列。
Allen Bradley AB 2755 DM9 Bar Code Decoder x2755 NEW
Allen Bradley 1772 SD2 Remote I/O Scanner Dist Panel *
Allen Bradldy 1772 LXP Mini Processor Power Supply NEW*
Allen Bradley 1771-PS7 1771PS7 Power Supply Assy Ser C*
Hyde Park SuperProx sensor SM556A 181LE NEW *
Allen Bradley AB 1770 FD PLC-2 Family Keyboard Ser: B *
Square D Wall Mount bracket Dry Transformer WMB363364 *
Gear Set S-Axis UP50 HW9381676 / 1677-A NEW
Tektronix Digital Oscilloscope 465 + Probes / Extras
ASEA 2668 180-88/4 YTEA 250-8 unit NEW
Coax Co-ax Valve VSVM403C216VTB11 VSV-M 40 DR NC NEW
TI Siemens 500-5039 Network Interface Module TIWAY I *
UltraSwitch ANGL210 & Durair II actuator AP075 N NEW
AB Allen Bradley 2755 DM6 barcode decoder New open box
Fanuc Emg. Cont. PC Board A16B-1212-0540/04B P2YIH
(4) Ridgid Pipe Die Head Mono # 500 3/4″ 1/8″ 3/8″ 1/4″
Pulsafeeder LE44SA-SHC5-XXX Pump
(5) GARCOR Heating Element HR50140BQ 240V 1000W 14″ NEW
Texas Instruments PM550-410 Timer Counter Access Module
Allen Bradley AB-1771 E4C Analog Output Expander 12Bit*
Telemecanique saftey light curtain XUS LTR5A0520 NEW
VTel Video Conference set TC200 & ST-1 & LX-2 & AA-2
Parker Compumotor Dynaserv DD Servo Actuator SD1045B62
(2) Sti MiniSafe Light Curtains MS4300 Series 48″ **
Yaskawa Seiki Relay Board IN86001 ***
Arburg 790 control board +A17 NR. 065886 NEW
Set of Black Orange Peel Standards Standard APR34134
(4) Precise Technology Linear Probe 923336 NEW
Yuken Hydraulic Cylinder CJT140-LB32B600B-ABD 20 NEW
(4) Modicon User Guides and Manuals w/ 3 disks
2 – GE Fanuc Output Module A03B-0801-C115
14 – pieces Parker Rod Gland Cartridge and Seal kit NEW
2 – NSK Ballscrew NUT RS2550A Machine Tool 2550-A3 NEW
AB Allen Bradley cable 2090-UXNFBMP-S60 NEW
Analog Devices Dual Power Supply AC-1302 AC1302 NEW
Sti MiniSafe Light Curtain MS4300 Series 36″ MS4336BR
Shibasoku Color Bar Signal Generator CB11A1
Hyde Park SuperProx sensor SM553A-100 NEW
Motoman Robot Interface ERC 54273A104 3878 Omron NEW
(4) SMC Pneumatic Compact Air Cylinder MGPL16-50 NEW
(5) Honeywell Temp Controller DC3005 NEED REPAIR
Stoger pneumatic nutrunner 4291 920866
2 – Data Instruments Wintress Controls load cell 70 ton
Allen Bradley AB 803S N4, Programmer
Fanuc AC Servo Motor A06B-0345-B331 model 5F/3000 *
LMI 241 Flush & Gap Gauge & 2 Probe Transducer 200SB31
(2) Tohnichi Torque Gauge Gage 15-BTG kgf-cm 15-0.2
LMI 7706F Flush & Gap Gage Gauge & 2 – Probe Transducer
LMI Flush & Gap Gage & 2 – Probe Transducer 200 – SB-50
Robotic Robot Accessories Safety Joint Q-4321-Z-BH
Airflotek Blower Filter Module BFM22LPF VAC115 NEW *
GE Fanuc Genius communications module IC693CMM301F
13 pieces Vickers Sun Rexroth hydraulic solenoid valve
2- Rexroth Bosch Hydraulic Cylinder CD201C40 F03696831
Rexroth Bosch amplifiier card QV60 0 811 405 099
Kitamura CNC circuit board PCB 3-E98652A NEW
Versa-Matic Robotic Robot Assy. Safety Joint Q-4320-Z *
Lepel Corp Control Board 1648-0049
Siemens – Allis NEMA size 4 Starter CLX 40*3
TI Siemens 7MT-200 Analog Output Module 4 Channel *