Connecting Modbus and LonWorks Networks - FieldServer ...

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Simple vs Structured VariablesSelective transfer of Structured Variables//================================================================================// Temperature Mapping in Deg_FMap_DescriptorsMap_Descriptor_NameData_Array_NameData_Array_Offset Lon_Function Function Node_Name SNVT_Type SNVT_OptionnviAlarm_1 DA_Binary_State 0 NVUI Server EC001 SNVT_switch StatenvoAck_1 DA_Binary_State 1 NVUOIMX wrbx EC001 SNVT_switch StateLoad only thevalue needed‣ When working with a Structured Variable, FieldServerallows you to fetch just the portion of the structuredvariable needed by declaring the SNVT_Option field.
Translation ChallengesSingle vs Block Data TransferTHE CHALLENGE‣ LonWorks sends and receives data one variable at atime.‣ Modbus works most efficiently when data istransferred in blocks. That is: each poll for datareturns many values.‣ The challenge is to keep both networks efficient bygrouping data together for block transfer on theModbus side.
Page 1 and 2: Connecting Modbus andLonWorks Netwo
Page 3 and 4: The Modbus Standard‣ A truly open
Page 5 and 6: 0000165536Modbus Memory MapAddressF
Page 7 and 8: Modbus VariationsVariations resulti
Page 10 and 11: Modbus TCPDealing with Ethernet and
Page 12 and 13: LonWorks OverviewLonWorks Addressin
Page 14 and 15: LonWorks OverviewNetwork Managers
Page 16: LonWorks OverviewData Transfer - Up
Page 19 and 20: LonWorks OverviewNeuron ID’s vs P
Page 21 and 22: LonWorks ConfigurationBasic Configu
Page 23 and 24: Lonworks ConfigurationXIF for Basic
Page 25 and 26: Lonworks ConfigurationCommissioning
Page 28 and 29: Translation ChallengesData Resoluti
Page 30 and 31: Data ResolutionSNVT_Option Feature/
Page 32 and 33: Data ResolutionScalingManaging Floa
Page 34 and 35: Data ResolutionBit Packing//=======
Page 36 and 37: Translation ChallengesEngineering U
Page 38 and 39: Translation ChallengesSimple vs Str
Page 42 and 43: Translation ChallengesSingle vs Blo
Page 44 and 45: Single vs Block Data TransferHelp!
Page 46 and 47: Translation ChallengesMaster/Slave
Page 48 and 49: Translation ChallengesMaster/Slave
Page 50 and 51: Master/Slave vs Peer/Peer Communica
Page 52 and 53: Translation ChallengesMultiple vs S
Page 54 and 55: Multiple vs Single Node Representat
Page 56 and 57: Multiple vs Single Node Representat
Page 58 and 59: Translation ChallengesLonMark vs Mo
Page 60 and 61: Questions?Marketing and Sales:Steve

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