联系人:黄晓飞(销售工程师)移动电话:18030263579固话:0592-6895320QQ:2472574325?
1.冗余系统
所谓冗余系统是指系统中有多余的部分,没有它系统照样工作,但在系统出现故障时,这多余的部分能立即替代故障部分而使系统继续正常运行。冗余系统一般是在控制系统中最重要的部分(如CPU模块)由两套相同的硬件组成,当某一套出现故障立即由另一套来控制。是否使用两套相同的I/O模块,取决于系统对可靠性的要求程度。
两套CPU模块使用相同的程序并行工作,其中一套为主CPU模块,一块为备用CPU模块。在系统正常运行时,备用CPU模块的输出被禁止,由主CPU模块来控制系统的工作。同时,主CPU模块还不断通过冗余处理单元(RPU)同步地对备用CPU模块的I/O映像寄存器和其它寄存器进行刷新。当主CPU模块发出故障信息后,RPU在1~3个扫描周期内将控制功能切换到备用CPU。I/O系统的切换也是由RPU来完成。
a)冗余系统b)热备用系统
2.热备用系统
热备用系统的结构较冗余系统简单,虽然也有两个CPU模块在同时运行一个程序,但没有冗余处理单元RPU。系统两个CPU模块的切换,是由主CPU模块通过通信口与备用CPU模块进行通信来完成的。两套CPU通过通讯接口连在一起。当系统出现故障时,由主CPU通知备用CPU,并实现切换,其切换过程一般较慢。
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Rexroth力士乐全系列产品
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Siemens6DD,6FX,6SC,6FC,6S5系列
AB1746,1756,1747,1785系列PLCCP
MOTOROLA-MVME全系列产品库存清单
ModelNumber DescriptionQty 
MVME110-1680008MHZ,1CHANNEL,SERIAL,RS232C12 
MVME13368020CPU,12.5Mhz,1MBmemory,3Serialports1 
MVME133-168020CPU,16.67Mhz,1MBmemory,3Serialports3 
MVME133A-2068020CPU,20Mhz,1MBmemory,3Serialports1 
MVME133SA68020CPU,20Mhz,1MBmemory,3Serialports7 
MVME141-168030CPU,25Mhz,VSBA32/D32,2SIO1 
MVME141-368030CPU,1 
MVME14768030CPU,20Mhz,4MBmemory, 6 
MVME147-01068030CPU,16Mhz,4MBDRAM,4SIO,1PIO5 
MVME147-010A68030CPU,16.67MHZ,4MB,SCSI,ETHERNET4 
MVME147-01168030CPU,25Mhz,4MBmemory15 
MVME147-011A 68030CPU,25MHZ,4MB,SCSI,ETHERNET6 
MVME147-01268030CPU,25Mhz,8MBmemory4 
MVME147-012A68030CPU,25Mhz,8MBmemory1 
MVME147-01368030CPU,25Mhz,16MBmemory29 
MVME147-013A68030CPU,25Mhz,16MBmemory18 
27215831001C配件
27215831001C配件
27215831001C配件
MVME147-02268030CPU,32Mhz,8MBmemory47 
MVME147-022A68030CPU,33MHZ,16MB,SCSI,ETHERNET14 
MVME147-02468030CPU,33MHZ,16MB1 
MVME147S68030CPU,20MHZ,4MB2 
MVME147S-168030CPU,25MHZ,4MB,SCSI,ETHERNET43 
MVME147SA-168030CPU,25MHZ,8MB,SCSI,6 
MVME147SB-168030CPU,25Mhz,16MBmemory54 
MVME147SB-268030CPU,32Mhz,16MBmemory2 
MVME147SC-268030CPU,32Mhz,32MBmemory1 
MVME147SRF68030CPU,16Mhz,4MBmemory2 
MOTOROLAMVME162备件
MVME162-010A
 6804025MHZCPU,4MB,4IP,2SERIAL2 
MVME162-01268040CPU,25Mhz,4MB,4IPPorts,ETHERNET5 
MVME162-012A 68040CPU,25Mhz,4MB,4IPPorts,ETHERNET10 
MVME162-01368040CPU,25Mhz,4MB,4IPPorts,SCSI,ETHERNET9 
MVME162-013A 68040,25MHz,4MB,1MBFlash,SCSI,ETHERNET1 
MVME162-0206804025MHZCPU,4MB,4IP,2SERIAL8 
MVME162-022 68040CPU,25Mhz,4MB,4IPPorts,ETHERNET7 
MVME162-023 68040CPU,25Mhz,4MB,4IPPorts,SCSI,ETHERNET6 
MVME162-023A 68040CPU,25Mhz,4MB,4IPPorts,SCSI,ETHERNET5 
MVME162-03268040CPU,25Mhz,8MB,4IPPorts,ETHERNET34 
MVME162-040 68040CPU,25Mhz,8MB,4IPPorts9 
MVME162-21168040,4MBDRAM,SCSI1 
MVME162-21268040CPU,25Mhz,4MB,2IPPorts,ETHERNET62 
MVME162-21368040CPU,25Mhz,4MB,2IPPorts,SCSI,ETHERNET1 
MVME162-21568040CPU,25Mhz, 4MBParity.SCSI3 
MVME162-22268040CPU,25Mhz,4MB2 
MVME162-22368040CPU,25Mhz,4MBmemory,2IPPorts,ETHERNET2 
MVME162-25368040CPU, 25Mhz,16MBECCDRAM,SCSI,Ethernet17 
MVME162-26368040CPU,25Mhz,16MBmemory,2IPPorts,ETHERNET7 
MVME162-41068040CPU,25Mhz,16MBmemory, 2SIO, 4DMAIP12 
MVME162-41268040CPU,25MHz,4MB,ETHERNET1 
MVME162-43268040CPU,25MHz,8MB,4-IP,ETHERNET1 
MVME162-43368040CPU,25MHZ,8MB,4-IP,SCSI,ETHERNET3 
MVME162-510A68040CPU,32MHz,4MBDRAM,2SIO,4DMAIP2 
MVME162-512A68040CPU,32MHZ,4MB,4-IP,ETHERNET5 
MVME162-522A68040CPU,8MB,2serial,1MBFlash,Ethernet,SCSI77 
MVME162-52368040CPU,8MB,2serial,1MBFlash,Ethernet,SCSI1 
MVME162-532A68040CPU,32Mhz,8MB,4IP,2Serial,SCSI,ETHERNET1 
MVME162P-242LE68040CPU,25MHz,16MBSDRAM,Ethernet1 
MVME162P-242LSE68040CPU,25MHz,16MBSDRAM,SCSI,Ethern,et1 
MVME162P-244LE68040CPU,25Mhz,16MB,2SIO,4DMAIP,Ethernet1 
MVME162P-252SE68040CPU,25MHz,32MBSDRAM,SCSI,Ethernet1 
MVME162P-34468040CPU,32Mhz,16MBSDRAM,2SIO,4DMAIP1 
MVME162P-344E68040CPU,32Mhz,16MB,2SIO,4DMAIP,Ethernet1 
MVME162PA-242LE68040CPU,25MHz,16MBSDRAM,2DMAIP,Ethernet1 
MVME162PA-244L68040CPU,25MHZ,16MBSDRAM,2SERIAL1 
MVME162PA-244LE68040CPU,25MHZ,16MBSDRAM,2SERIAL,ENET1 
MVME162PA-244LSE68040CPU,25Mhz,16MB,2SIO,4DMAIP,SCSI, ENET1 
MVME162PA-344B68040CPU,25MHZ,16MBSDRAM,2SERIAL6 
MVME162PA-344E68040CPU,25MHZ,16MBSDRAM,2SERIAL2 
MVME162-512A68040CPU,32Mhz,4MB,ENET2 
MVME167备件 
MVME165
 68040CPU,25Mhz,4MBmemory,VSB,2serialports1 
MVME167Variousoptionsandconfigs,seebelow..5 
MVME167-04A68040UCPU,25Mhz,32MB2 
MVME167-031A 68040CPU,33Mhz,FPU,Ethernet,SCSI,DMA 3 
MVME167-032B 68040CPU,33Mhz,8KB,MMU,FPU,8MB,ENET,SCSI4 
MVME167-033A 68040CPU,33Mhz,8KB,MMU,FPU,16MB,ENET,SCSI2 
MVME167-033B 68040CPU,33Mhz,8KB,MMU,FPU,16MB,ENET,SCSI98 
MVME167-034A68040CPU,33Mhz,8KB,MMU,FPU,32MB,ENET,SCSI23 
MVME167-34B 68040CPU,33Mhz,8KB,MMU,FPU,32MB,ENET,SCSI 15 
MVME167-034B 68040CPU,33Mhz,8KB,MMU,FPU,32MB,ENET,SCSI15 
MVME167-035B 68040CPU,33Mhz,8KB,MMU,FPU,64MB,ENET,SCSI24 
MVME167-036B 68040CPU,33Mhz,8KB,MMU,FPU,128MB,ENET,SCSI 2 
MVME167P-036SE68040CPU,33Mhz,8KB,MMU,FPU,64MB,ENET,SCSI 24 
MVME167P-35SE 68040CPU,33Mhz,8KB,MMU,FPU,32MB,ENET,SCSI2 
MVME167P-34SE 68040CPU,33Mhz,8KB,MMU,FPU,16MB,ENET,SCSI13 
MVME167-04 68040CPU,25MHz,32MB5 
MVME167A68040