价格:未填
供应:99999
发货:3天内
PRS
PROFIBUSDPMasterRedundancy
PRS TheoptimalsolutionforasafePROFIBUSDPMasterredundancyconceptPRSprovidesswitchoverofthePROFIBUSlinebetweentwoidenticalDPMasters.ThisavoidsanygalvaniccontactbetweentheDPMasters,theycanthereforebeconfiguredwithidenticalPROFIBUSaddresses,makingMultiMastermodeunnecessaryandexcludesdoubleaddressconflict.
PRSisacompact24VolthatrailmodulecontainingtheswitchinglogicaswellasanintelligentdoubleDPSlave.ThedeviceallowstheconnectionoftwoDPMastersandthePROFIBUSconnectiontotheDPSlaves.TheSwitchcontrolsthestatusoftheoperationalDPMastersystemonthePROFIBUSprotocolandapplicationlevel.
IncaseoffailureoftheoperationalMasterPRSphysicallyswitchesovertothestand-byMaster,whichseamlesslytakesovertheDPSlaves.
IncontrasttotheestablishedFlyingMasterprincipleadoubleaddressconflictcannotoccurwithPRS,evenifthefailedDPMasterisstillactiveonthePROFIBUSlevel.FurthermoremanyDPMasterimplementationsonthemarketdonotsupporttheFlyingMasterprinciple.AsbothDPMastersarepreventedfrombeingconnectedtothebusatthesametime,thedeviceavoidsalldisadvantagesofcurrentredundancyconcepts.
PRSprovidestheDPMasterswithimportantinformationabouttheredundancyoperation,i.e.thealivestateofthecomplementarysystem,italsoallowstheexecutionofaswitch-overcommand.Thedevicecanbeusedinverycomplexredundancysystems,i.e.inconnectionwithPROFIBUSOPCserversoroverlyingEthernetbasedcellnetworks.FurthermorePRScanbecontrolledviabothintegratedEthernetconnectionsifdirectcontrolviathePROFIBUSisnotpossible.
ThereisnosinglepointoffailurewiththePRSbecauseifthedevicedoesdevelopafaulttheMastertoSlavecommunicationwouldcontinuewithoutinterrupted.
TechnicalData
Interfaces
Ethernet
PROFIBUS
Serial
2*10/100BaseT
3*RS485(DB9)
RS232(screwterminal)
BaudRates
Ethernet
PROFIBUSRS485
RS232
max.100Mbit/s
max.12Mbit/s
19.2Kbit/s
SupportedPROFIBUS
ProtocolVersions
DPV0
DPSlave
供应PROFIBUS SWITCH开关
日期:2010-08-31 05:52 点击:5
联系方式
公司:广州虹科电子科技有限公司
发信:点此发送
姓名:丁文可(先生)
电话:86-020-38743030
手机:13662533707
传真:86-020-38743233
地址:中国 广东 广州市天河区 五山华南理工大学国家科技园2号楼503-504室
发信:点此发送
姓名:丁文可(先生)
电话:86-020-38743030
手机:13662533707
传真:86-020-38743233
地址:中国 广东 广州市天河区 五山华南理工大学国家科技园2号楼503-504室