Applied-motion SV7-Q-EE Bedienungsanleitung PDF herunterladen (Seite 5)

6/26/2010

920‐0032a3eSCLCommunicationReferenceManual Page5

SettingFis“DHCP”,whichcommandsthedrivetogetanIPaddressfromaDHCPserveronthenetwork.The

IPaddressautomaticallyassignedbytheDHCPservermaybe“dynamic”or“static”dependingonhowthe

administratorhasconfiguredDHCP.TheDHCPsettingisreservedforadvancedusers.

YourPC,oranyotherdevicethatyouusetocommunicatewiththedrive,willalsohaveauniqueaddress.

WhenyoulaunchanAppliedMotionEthernet‐readysoftwareapplication,itwilldisplaytheIPaddressofyour

PConthetitlebar.

Onthedrive,switchsettings1throughEusethestandardclassBsubnetmask(i.e.“255.255.0.0”).Themask

fortheuniversalrecoveryaddressisthestandardclassA(i.e.“255.0.0.0”).

OneofthegreatfeaturesofEthernetistheabilityformanyapplicationstosharethenetworkatthesame

time.PortsareusedtodirecttraffictotherightapplicationonceitgetstotherightIPaddress.TheUDPeSCL

portinourdrivesis7775.TosendandreceivecommandsusingTC P, useportnumber7776.You’llneedto

knowthiswhenyoubegintowriteyourownapplication.Youwillalsoneedtochooseanopen(unused)port

numberforyourapplication.Ourdrivedoesn’tcarewhatthatis;whenthefirstcommandissenttothedrive,

thedrivewillmakenoteoftheIPaddressandportnumberfromwhichitoriginatedanddirectanyresponses

there.ThedrivewillalsorefuseanytrafficfromotherIPaddressesthatisheadedfortheeSCLport.Thefirst

applicationtotalktoadrive“owns”thedrive. Thislockisonlyresetwhenthedrivepowersdown.

Ifyouneedhelpchoosingaportnumberforyourapplication,youcanfindalistofcommonlyusedport

numbersathttp://www.iana.org/assignments/port‐numbers

.

Onefinalnote:Ethernetcommunicationcanuseoneorbothoftwo“transportprotocols”:UDPandTCP.

eSCLcommandscanbesentandreceivedusingeitherprotocol.UDPissimplerandmoreefficientthanTCP,

butTCPismorereliableonlargeorverybusynetworkswhereUDPpacketsmightoccasionallybedropped.



Option1:ConnectaDrivetoYourLocalAreaNetwork



PC

SWITCH

or

ROUTER

DRIVELAN

NIC

IfyouhaveaspareportonaswitchorrouterandifyouareabletosetyourdrivetoanIPaddressthatis

compatiblewithyournetwork,andnotusedbyanythingelse,thisisasimplewaytogetcon nected.This

techniquealsoallowsyoutoconnectmultipledrivestoyourPC.Ifyouareonacorporatenetwork,please

checkwithyoursystemadministratorbeforeconnecting anythingnewtothenetwork.Heorsheshouldbe

ableassignyouasuitableaddressandhelpyougetgoing.

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Applied-motion SV7-Q-EE Bedienungsanleitung Seite 5