INDEXB30 BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL viiHeartbeat messages .............................................................5-66, 5-69Help, getting ............................................................................................. 1-2Home page configuration ..............................................................5-27HTTP ............................................................................................................5-99port, close .............................................................................................5-99Humidity specifications ....................................................................2-33Hysteresis ..............................................................................................5-185IIAC curves .............................................................................................5-197ICD file ................................................................................5-74, 5-76, 5-77IEC 60870-5-103 protocolexplained ...........................................................................................5-104select protocol ...................................................................................5-50settings ...............................................................................................5-103IEC 60870-5-104 protocolconnections remaining ..................................................................6-11port, close ..........................................................................................5-101select protocol ...................................................................................5-50settings ...............................................................................................5-100IEC 61850 protocolcompatibility with previous release .........................................5-56error messages .................................................................................... 7-8explained ..............................................................................................5-56file transfer ...........................................................................................5-98heartbeat messages ...........................................................5-66, 5-69IID file ......................................................................................................10-8settings in EnerVista ........................................................................5-55specifications ......................................................................................2-30IEC CID files ..............................................................................................5-58IED setup ...................................................................................................3-55IEEE C37.94 communications ...........................................3-47, 3-50IEEE curves ...........................................................................................5-195IID file ..................................................................................3-70, 5-58, 10-8import preferences ..........................................................................10-9Import settings file ..............................................................................3-70Import settings from SCD or CID file ......................................10-12In service indicator ............................................................................... 7-6In Service LED ........................................................................................3-52Incompatible device order codes or versions ..................10-14Incompatible hardware error ......................................................... 7-6InputsAC current specifications ..............................................................2-26AC currents .......................................................................................5-143AC voltage .........................................................................................5-143AC voltage specifications ..............................................................2-26contact input specifications ........................................................2-26contact inputs .................................................................. 5-256, 5-276DCmA input specifications ...........................................................2-26DCmA inputs .......................................................................................3-30direct input specifications ............................................................2-27IRIG-B ......................................................................................................3-35IRIG-B specifications .......................................................................2-27RTD input specifications ................................................................2-27RTD inputs ............................................................................................3-30virtual ..................................................................................................5-258Installation ........................................................................................3-2, 3-6activate relay ..................................................................................... 3-52add UR devices with auto discovery ....................................... 3-65communications ............................................................................... 3-33CT inputs ............................................................................................... 3-17front panel .........................................................................................10-15RS485 ..................................................................................................... 3-34set relay to Programmed ............................................................. 3-52settings ...............................................................................................5-141Instantaneous overcurrentsee Phase, Ground, and Neutral IOCsInterfacefront panel ........................................................................................... 4-15software ..................................................................................................4-1Internet access ..................................................................................... 5-99Inter-relay communication specifications ........................... 2-31Inverse time undervoltage ...........................................................5-221IOCsee Phase, Ground, and Neutral IOCsIP addressenter in software .............................................................................. 5-44enter on front panel ............................................................ 3-57, 4-37gateway ................................................................................................ 5-47view ........................................................................................................ 5-44IP rating ..................................................................................................... 2-33IP54 for enhanced front panel ......................................................3-2IRIG-Bconnection .......................................................................................... 3-35error messages ....................................................................................7-8port on rear panel ............................................................................ 3-12specifications ..................................................................................... 2-27IRIG-B connection ............................................................................... 3-12ISO standards ........................................................................................ 2-35JJapanese limited to 10 character input ................................. 5-26KKeyboard .................................................................................................. 4-55Keypad ...................................................................................................... 4-37LLabels, front panel .................................................................. 4-43, 4-75Lamp test ....................................................................................................7-3Language setting ................................................................................ 5-25Laser module ......................................................................................... 3-38Latching outputsapplication examples ...................................................................5-261error messages ....................................................................................7-8settings ...............................................................................................5-260specifications ..................................................................................... 2-28LC fiber .............................................................................................2-8, 3-12LC fiber connector .............................................................................. 3-13