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BU_: NODE_NAME_1 NODE_NAME_2 ... NODE_NAME_N Example:

BO_ 100 VehicleSpeed: 8 ECU_Powertrain SG_ Speed : 0|16@0+ (0.01,0) [0|300] "km/h" Gateway,DiagnosticTool SG_ Direction : 16|2@0+ (1,0) [0|3] "" Gateway dbc file format documentation

BO_ 200 EngineStatus: 8 ECU_Powertrain SG_ EngineState : 0|4@0+ (1,0) [0|5] "" Gateway,DiagnosticTool SG_ CoolantTemp : 8|8@0+ (1,-40) [-40|215] "degC" Gateway BU_: NODE_NAME_1 NODE_NAME_2

BU_: ECU_Powertrain ECU_Body Gateway DiagnosticTool 0) [0|300] "km/h" Gateway

CM_ "BU_ ECU_EMS" "Engine control module"; CM_ "BO_ 100" "Main engine data"; CM_ "SG_ 100 EngineSpeed" "Engine rotational speed"; Attributes allow extending the database with user‑defined metadata. BA_DEF_ – Define an attribute Syntax:

CM_ "BU_ node" "comment"; CM_ "BO_ msgId" "comment"; CM_ "SG_ msgId sigName" "comment";

BA_DEF_ BO_ “GenMsgCycleTime” INT 0 65535; BA_DEF_DEF_ “GenMsgCycleTime” 100; BA_ “GenMsgCycleTime” BO_ 100 20; BA_ “GenMsgCycleTime” BO_ 200 50;