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HPC800K02冗余控制器套件系统模块
HPC800K02冗余控制器套件系统模块
HPC800K02冗余控制器套件系统模块
设计原理
被动式冗余主要由服务的请求者实现,基于失败重试原理,在可用的服务提供者之间重试,直到找到一个可用的提供者。被动式冗余是简单的,但也有很大的局限性,它要求冗余节点只是作为信息的处理者,完全作为C/S架构中的S,而不可能作为信息的发起者。这类冗余在事务处理系统(MIS)中比较常见,因为这类系统总是响应用户的操作,而很少会有自动收集信息并处理的业务。
在控制系统中的冗余架构,基本都是主动式冗余架构。它要求冗余节点能够自动检查主备节点的运行状态,并且在主节点失败时自动切换到备节点。
主动冗余架构也有两种实现方式,一是主备节点间设有交换运行状态的通讯通道,由他们自行协商何时进行主备切换,可以称为自控方式。另一种是基于一个中心的冗余控制器,冗余控制器分别与主备节点通讯,并决定何时进行主备切换,可以称为集控方式。
在笔者参与的地铁控制系统中,两个与硬件直接通讯的主备RTU(REMOTE TERMINAL UNIT)之间就采用自控方式。当两个RTU之间不能通讯时,或者当前系统中仅有一个RTU时,它们会将自己设定为主节点,提供所有服务。当两个RTU建立了通讯连接后,它们会就谁是主节点进行协商,主节点条件包括,是否连接有更多的外围设备,是否正在对外围系统提供服务等等。当确定谁是主节点后,两个RTU就会自觉把自己设定为相应的工作状态。自动方式中的主备节点,要求它们在系统中具有不同的逻辑地址,以让它们的客户端能够分别找到它们,并且确定它们的工作状态,并对它们提供的信息进行不同的处理。
在集控方式的实现中,主备节点在运行时都向冗余控制器注册,由冗余控制器确定他们的运行方式,另外冗余控制器还担任监视主备节点运行状态的责任。当主节点在设定的时间内没有响应时,冗余控制器则重新设定主备节点的运行方式,备节点代替主节点处理内部信息、响应请求。在这种情况下,主备节点具有使用相同的逻辑地址,它们的运行状态对客户程序是透明的,所有的客户请求都通过冗余控制器转发给主节点。
在基于构件的软件架构中,比如J2EE, CORBA, .NET, WEBSERVISE等,任一软件构件都具有的构件标识,使构件的客户端可以准确地定位构件的位置,并请求服务。这就跟构件冗余系统产生冲突,冗余系统要求所有构件都要有主备节点,并且要求其主备模式对构件的客户端是透明的。这样,支持主备构件的寻址服务就成为系统不可缺少的基础服务,它可以解析客户的寻址请求,并把服务请求转发给主节点构件。
支持冗余的构件本身,为了满足苛刻的系统切换性能要求,针对具体情况特别设计。但有一点是共同的,就是主备构件的数据同步。在任何情况下,当主节点故障,备节点接管后,要能够保持与主节点故障前同样的内部状态信息。一种情况是主备节点中,同时只有一个节点从外部获得信息并对外提供服务,这样主备节点之间的数据同步,就需要同步所有的动态数据,而且只能通过主备节点间的通讯实现。由于主备节点通常不在相同的物理位置上,其间的通讯只能通过网络实现,这样就保证主备节点间数据同步的,不能占用大量的网络带宽。另一种情况是主备节点可以同时从外部获得信息,但同时只有一个节点对外提供服务,这样主备节点间的数据同步就会减少,只需要同步少量运行状态信息,但同样会有缺点,它要求信息提供者可以支持同时给主备节点提供相同的信息。
01 unit: AX 460
AX460
01 unit: AWT440
6ES7822-1AA06-0YA5 3个
6AV2105-0FA16-0AA0一台
AS880-MU-ZCU-12/14 1
XCSTE7312 1
LXM62PD20A11000 1
6ES7513-1FL01-0AB0
6ES7522-5HF00-0AB0
6ES7526-1BH00-0AB0
6ES7526-2BF00-0AB0
ATV71HD45Y/690V 1
3BHE014023R0101 UFC789AE101 4个
3BHE006373R0101 XVC769AE101 2个
3BHB007700P0001 POS.A6032 2个
3BHB017409R0001 POS.A8301 2个
2198-CAPMOD-2240 1个 23277
ABB 02P5000 带电机EM3025 2
6SL3998-5HX01-0AA0 1
1769-OW16数量5 5333
132-4BD32-0AA0 3个
3KXF065094U0100
SF221A SFR14 ABB/2G/6M 各1
液压比例阀 4WRPH6C3B24L-20/G24Z4/M 数量 1
MPL-B320P-SK72AA 16410
2097-V34PR5 14779 各1
6ES7136-6BA01-0CA0 1
T9083U 1
4AM6542-5AT10-0FA0数量1
4AM4642-5AN00-0EA0数量1
4NC5330-2CE21数量3
4AM5542-4TT10-0FA0数量1
艾默生板卡
MFC075BOM16
MFC075B0T1
MFC075BOM2
MFCO75BOM1
8913-PS-AC 1
440-2UD33-0EB1 1
440-2UD35-5FB1 1
140XBP01600 配模块端子排 1 面价4923
PLC主机卡件BMXERT1604T 2
206-2BB00-2AC2 7
A06B-6117-H211 1
A06B-6111-H015 #H550 1
A06B-6140-H030 1
A06B-6114-H209 1
A06B-6114-H103 1
A06B-6140-H037 1
A06B-6117-H105 1
A06B-6141-H045#H580 1
A06B-6140-H055 1
A06B-6132-H003 1
A06B-6141-H022#H580 1
A06B-6141-H011#H580 1
A06B-6117-H109 1
A06B-6117-H106 1
A06B-6117-H303 1
A06B-6117-H206 1
A06B-6140-H006 1
A06B-6141-H055#H580 1
A06B-6141-H037#H580 1
A02B-0285-B803 1
A06B-6117-H210 1
A03B-0814-B102 1
A02B-0307-B822 1
A06B-6132-H002 1
A06B-6111-H401 1
A06B-6077-H002 1
3AXD50000010454 2
BDFC-01C
6GK1500-0FC10 46
6RA7018-6DS22-THY 2
6RA7018-6DS22-0 1
ZX3A-2200/440-11-S 1
ABB FEW15CT 1
SGD7S-180A00B202 1
140XTS00200 3 面价355
450L-E4HL1500YD X2面价 16435
450L-APT-PW-5 X1面价829
450L-APR-ON-5 X1面价1228
889D-F5BC-2 X2面价236
DS200ADMAH1A 1
DS200DDTBG2A 1
DS200VPBLG2A 1
IS415UCVHH1A 1
IS220PSVOH1A 1
IS220PAICH1A 2
IS220PTCCH1A 1
IS220PPDAH1A 1
IS220PDOAH1A 1
IS220PPDAH1A 1
IS220PTURH1A 1
IS200TBTCH1B 1
IS200TVBAH2A 1
IS200WROBH1A 3
6AG1332-8TF01-2AB0 6
2LC0101-3WA00-0AA0 8
2LC0101-2WA00-0AA0 4
6ES7331-7NF10-0AB0 1
6AG1052-2MD00-2BA4 1
6GK1571-1AA00 2
6SE7090-0XX84-30DB1 2
6SL3760-0DD00-0AA0 2
6ES7953-8LG30-0AA0 5
6AG1232-4BH30-4XB0 1
6AG1234-4HE30-4XB0 1
6SL3760-0DE00-0AA0 30
6SL3760-0DF00-0AA0 30
6AG1055-1MM00-7BA2 1
6AG1212-1AE31-2XB0 2
6AG1214-1AG40-4XB0 1
6AG1223-1BL32-4XB0 1
6AG1221-1BH32-4XB0 1
1756-BA2 20 面价1650
1734-VHSC24 10 面价3472
1769-L18ER-BB1B 2 面价24995
ABB 1SCA022042R6020 50
DSMB-02C 64666606 2
DSAB-01C 64630199 2
CT-ERS.12 1SVR630100R3100 4
OXP6X161 1SCA022067R1760 30
1SCA100256R1001 30
ACS880-304-0820A-7+A018+C183 1
ACS880-104-0600A-7+C183+E205 1
ACS800-704-0910-7+0F253+V992
PFSK 113 1
1,(ABB直流调速器DCS800-S01-2000-05-b)购置1件
2、ABB励磁模块(型号:DCF803-0050)购置数量2只
SPACETMAX X T4N 250250A 1
6ED1 052-1MD00-0BA5 2
2711P-T10C15A2 1 面价60426
TBUP4A-102-01-0-1 1
2711P-T10C15A2-----1
2711P-RDT10C 1
2711P-RN15S 1
------------------------1
6SN1145-1AA00-0AA0,1个
6SN1123-1AA00-0BA0,1个
6SL3225-0SE22-2UA3,1个
ATV71HD45Y/690V 1
i510-C0.37/400-3 1
i510-C0.55/400-3 1
i510-C0.75/400-3 1
BTL6-E500-M2800-PF-S115 1
6GK1561-3AA02 4
GXEC-AI4S-RTD/NW 1
电机电源线接头(公头)BEDC08MR201000 数量2
电机电源线接头(母头)6FX2003-0CG10 数量2 询价
FFR-DT-182A-SS1 1
MITSUBISHI
品牌:B&R 件号8V1090.002 Servo drive -数量 1 pc.
WS-C3750-48PS-S 10
Cermate斯美特
PT2070-51
PT2121-51
802A011B-1 1
3RX9305-1AA00,2pcs
X20CP3585 1
MR-J3ENSCB L5M-L 3
PXZ 4T CY2-1V000 24
Pepperl & Fuchs KSD2-BI-4.2 2
BARKSDALE 9653-1-WA 1
GT16-75PWA BKO-C11607H03 5
GT27-10PWA BKO-C12009 5
6AV2125-2AE23-0AX0
SEJ2200A01D5K数量2
ACS355-03E-02A4-4数量3
SV660NS2R8I 1
3BSC610067R1数量1
CSTR-SDB3R8AAA 1个
1769-OB8 2 面价3794
型号:ER6V/3.6V?品牌:TOSHIBA,数量:16组
TM3DQ16R 1
TM4ES4 1
A03B-0819-C156 1
PC00416F数量2
ZSMK-IV z .3.0 4
电机 MDI1FRD34C7-EQ-N
电机 MDI1PRD23B7-EQ 各1
PXC-J118 6
PXC-J1180151 5
PXC-J128 6
PXC-J1280151 5
MDSKSRS036-23 1
AAI143-H50/A4S10 3
MRIC-32/230VAC-DC 2
MRO-32/24VDC 2
LENZE MDSKARS071-22 数量6个
815S/TC/LG NONE NONE NONE/485/96/S/01/32/800/F/N0/N0/E/IN/S/N 1
软并网板:RQD-S780
JDQ中间继电器板:JDQ-S780
各3个
PMP21-11F2/0 1
NED-75B 2
5X00270G01 数量13
UPS 420 SU420INET 5
D0-05DD 4
Woodward 2301D 1
Lenze I55AE322F10V10002S 1
专业型控制板 6AX51-1H-FL00 1
变频器MD290T22G/30P 1
变频器MD290T30G/37P 1
FFR-DT-182A-SS1 1
JBK4-1600VA 380V/220V 1
FR-E540-2.2K-CH 1
Q01CPU(带程序) 2
Q64DA-10-10V/0-20MA 1
BSM100GB120DN2KG09240 0457 3
24VLP4K09 01RW3 6
FX3U-48MR/DS 带CMT1801粗纱机程序及通讯线 1
PS3N-F 220V/24VDC 6.5A 2
FC-301P4KOT4E20H1XGC 4KW 380V 1
PNOZ-X3 2
NH40-100/4SZL 1
KBCH12001W12LEL数量2
D20DMU-S23PVA-Z4X0X 1
D20-50E/H10011000 6
SCHAFFNER FS21226-130-35 1
MDS-DH-CV-450 1
78-092-0300 584060TA ASCOM 3
BGE-1/5,(DEGUSSA FURNACE) 10
LS72/4E0000223,(DEGUSSA FURANCE) 10
VW3M8223R30 6
NEXCOM PEAK530 1
WOODWARD MRG3I1UOD 3
ACUITY IMAGING 002-PV900 USPP 002PV900
ACUITY IMAGING 002-PV9040 USPP 002PV9040
ACUITY IMAGING 010-PV9040 USPP 010PV9040
Acuity -AS-CLRS-116 Right Angle Camera Assembly
RVSI ACUITY CIMATRIX HE1515HD NSFP HE1515HD
Acuity Vision AS-MS20-301 IVS Cimatrix camera sensor
NEW COMPLETE RVSI ACUITY AS-MS40-301 MS40 CAMERA SYSTEM BW-MS40-301
ACUITY IMAGING AR4000 NSPP AR4000
Ophthalmic Optometric Computerized Visual Acuity Software - Excellent Value
ACUITY IMAGING MX712 USPP MX712
RVSI ACUITY CIMATRIX 7655 USPP 7655
RVSI ACUITY CIMATRIX HE1515HD USPP HE1515HD
ACUITY IMAGING MS40 USPP MS40
ACUITY IMAGING MS/10 USPP MS10
ACUITY IMAGING AS-8160-003 USPP AS8160003
MCT-600A LCD Acuity Chart System/ Projectro / Brand New
RVSI ACUITY CIMATRIX AS-M502-000 USPP ASM502000
Acuity Brands Controls SPAK 8S 120/277 Lighting Panel
ACUITY IMAGING ASMS20301 USPP ASMS20301
ACUITY IMAGING AS-MS40-314 USPP ASMS40314
ACUITY IMAGING AS8160000 USPP AS8160000
ACUITY IMAGING MS/20 USPP MS20
RVSI ACUITY CIMATRIX AS-P300B-200 USPP ASP300B200
RVSI ACUITY CIMATRIX MX-600 USPP MX600
I.D. Matrix Symbology Reader with Acuity SR-20 Module
ACUITY IMAGING XI36391 NSPP XI36391
RVSI ACUITY CIMATRIX DMR600 USPP DMR600
RVSI ACUITY IVS EXPRESS 85-264VAC 3.15A 47-63HZ
RVSI ACUITY CIMATRIX SR-20 USPP SR20
ACUITY IMAGING CA-XCHM-025 NSPP CAXCHM025
MENTOR GUYTON MINKOWSKI POTENTIAL ACUITY METER*
RVSI ACUITY CIMATRIX AS-P200-432 USPP ASP200432
Visual Acuity Software w/Remote Optometry Ophthalmology
INCLUDES FREE Tech Support, Slide Show Software, more
Visual Acuity Software w/Remote Optometry Ophthalmology
INCLUDES FREE Tech Support, Slide Show Software, more
PROPAQ ENCORE 202 EL PATIENT VITAL MONITOR WITH PRINTER & NETWORK ACUITY MODEM
Acuity Imaging AS-CLRS-017 Fiber Optic Camera Assembly
RVSI ACUITY CIMATRIX 010901900 NSFP 010901900
RVSI ACUITY CIMATRIX 002-CM4000 USPP 002CM4000
ACUITY IMAGING CM4000 USPP CM4000
ACUITY CM4000 CAMERA CCD BLACK/WHITE MINIATURE NEW
Acuity Imaging 070-200000 B 208008 045-200001 C 208446 045-201000 Frame Grabber
RVSI Acuity Imaging 070-200200 045-200400 Frame Grabber
RVSI Acuity Imaging 070-200200 Rev C PCI Frame Grabber
RVSI Acuity Imaging 070-200200 045-200400 Frame Grabber
RVSI Acuity Imaging 070-200000 045-200001 Frame Grabber
RVSI Acuity Imaging 070-200000 045-200001 Frame Grabber
RVSI Acuity Imaging 070-200000 045-200001 Frame Grabber
ACUITY (RVSI) DMR600 DMR 600 ROBOT DATA MATRIX READER MODULE
RVSI Acuity AS-CLRS-017 Camera Assembly Hitachi NIB
RVSI AS-MS20 Acuity IVS Series Camera Controller
RVSI ACUITY CIMATRIX SCANSTAR 10 USPP SCANSTAR10
RVSI Acuity IVS Series Installed SR20 Symbology Reader
PROPAQ ENCORE 202 EL PATIENT VITAL MONITOR WITH NETWORK ACUITY MODEM
RVSI Acuity Simatic Visionscape I/O Control Board New
RVSI ACUITY 070-203000 REV B I/O CONTROL BOARD SIMATIC VISIONSCAPE NEW
NIB Acuity Camera CM4000_CM4OOO
LAMP LIGHT BULB: ACUITY A09501
LAMP LIGHT BULB: ACUITY ULTRALIFE 013845
LAMP LIGHT BULB: ACUITY A09502
Acuity Imaging Inc. 070-200000 070200000 REV B Frame Grabber Board
ACUITY RVSI IVS SERIES CAMERA CONTROLLER 080-194300 080194300REV C
Acuity AS-CLRS-017 Camera W/ Fuji Lens 201573
NIB ACUITY CM4000 B/W CCD MINIATURE CAMERA
RVSI Citmatrix Vision Camera CM4000 Acuity Imaging #36177
RVSI ACUITY VXI SYMBOLOGY READER SR20 w/ E1403B ADAPTER
ACUITY IMAGING 604406 USPP 604406
ACUITY IMAGING 002-MS10X2 USPP 002MS10X2
MENTOR O&O B-VAT II / 2 PROCESSOR MODULE 22-4810 VIDEO ACUITY TESTER
ACUITY IMAGING CA-8182-010 USPP CA8182010
Acuity PC Board LG-3, Frame Grabber #21776
ACUITY IMAGING 651208 USPP 651208
Titmus Optical 2A Vision Screener Optical Eye Acuity Tester Optometry 8 Slide
1 NEW RVSI ACUITY CIMATRIX SCANSTAR 10 O4-2
ACUITY IMAGING AS-8160-005 USPP AS8160005
RVSI ACUITY CIMATRIX R-100-600302 USPP R100600302
(AJ01) RVSI Acuity EXTENDED G4IDC5 WORKING
ACUITY IMAGING AS-SWC2 NSPP ASSWC2
ACUITY IMAGING AS-SWC2 USPP ASSWC2
ACUITY IMAGING CA-XSL-010 USPP CAXSL010
ACUITY IMAGING CA-XSS-KIT NSPP CAXSSKIT
ACUITY CM4000 CAMERA WITH 1:2.8 50MM Lens
ACUITY IMAGING LG-3 Frame Grabber REV C PCI
ACUITY IMAGING 001-903030 USPP 001903030
ACUITY IMAGING CA-XSS-TAB NSPP CAXSSTAB
NEW ACUITY LIGHTING FIXTURE 175W HOLOPHANE BA17DMHMTPA
RVSI ACUITY CIMATRIX HEPS-1500 NSFP HEPS1500
ACUITY IMAGING 030-158700 USPP 030158700
ACUITY CM4000 CAMERA
ACUITY RVSI CIMATRIX 002-PX1000 PIPELINE MODULE
RVSI Acuity CiMatrix Visionscape Express Industrial Vision System Siemens
Acuity Neutral QN 50 VMS 36" x 50' Architectural Film QN50VMS
RVSI ACUITY CIMATRIX CAT# 888 (BRAND NEW!) 110-240 VAC
Hydrel / Acuity 12" SBB Bronze Stake Mounted Junction Box SBB12 12C CSL10 BZ
RVSI Barcode Acuity Matrix Controller CiMatrix 888 3111
Acuity 985 Powervision Model 985 Manual USED+++++++++++++++++++
Callaway 6pc Set Acuity Hiper Golf Clubs w/ MacGregor 400 Velocitized
RVSI Acuity AS-MS20 IVS High Resolution Controller
With IVS User Control
Acuity Voltage Men Golf 15 Piece Set (Right Handed)
HIGH-ACUITY NU - KAREN L. JOHNSON, ET AL. KATHLEEN DORMAN WAGNER (PAPERBACK) NEW
ACUITY GTC2000 GOLF TRAVEL COVER - NEW
Huge Acuity Deluxe Oversized Golf Hitting Practice Net - Portable 9x7 Easy Setup
ACUITY Voltage Men's Irons - 4, 6 & 8 Irons Right Hand - 3 clubs
NURSING Lot 3 Textbooks History Basic High Acuity
High-Acuity Nursing by Karen L. Johnson, Melanie G. Hardin-Pierce and...
RVSI Acuity Imaging 001-904040 Power Supply NIB
Acuity Golf Chip and Drive Mat & The Ultimate Electric Golf Ball Putt Return
Kids Golf Clubs RH for 36" - 40" Tall Youth Acuity Sport w Stand Bag
Acuity Turbo Plus #1 driver, 10.5 Degree Loft Golf Club Used
ACUITY CM4000 CAMERA W/ FUJINON TV LENS HF35A-2
High Acuity Nursing
Reichert Child Vision Acuity Chart Projector Slide Optometry Ophthalmic *New*
Enlarge
Vision Screen 9000 Eye Exam Near & Far Acuity Testing
2 Trunature Lutein & Zeaxanthin Helps Improve Visual Acuity 240 Softgels
ACUITY EXTREME SPIN DN2 60* LOB WEDGE STOCK TRUE TEMPER STEEL SHAFT
Reichert 11170 Vision Acuity Chart Projector Slide Optometry Ophthalmic
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American Optical Child Vision Acuity Chart Projector Slide Optometry Ophthalmic