CANBus Control Area Network (Module P6, PA)68C3 Operations Manual North Atlantic Industries, Inc. 12/19/2014Rev: 2014-12-19-0947 www.naii.com Page 77 of 330D4-D0: Five most significant bits.For CAN-B Messages (29-bit Identifiers)D13-D5: Unused.D4-D0: Five most significant bitsMSG_ID3The lower 6 bits of an 11-bit Identifier, or the 24th through 17th bits of a 29-bit Identifier.Description D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 FUNCTIONMSG_ID3 0 0 x x x x x x D D D D D D D D D=DATA BITD15: Start of Message Flag. Always equals 0.D14: End of Message Flag. Always equals 0For CAN-A Messages (11-bit Identifiers)D13-D8: UnusedD7-D2: Six least significant bitsD1-D0: UnusedFor CAN-B Messages (29-bit Identifiers)D13-D8: UnusedD7-D0: The 24th through 17th bits of a 29-bit IdentifierMSG_ID2The 16th through 9th bits of a 29-bit IdentifierDescription D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 FUNCTIONMSG_ID2 0 0 x x x x x x D D D D D D D D D=DATA BITD15: Start of Message Flag. Always equals 0.D14: End of Message Flag. Always equals 0.For CAN-A Messages (11-bit Identifiers)D13- D0 Unused, but must be presentFor CAN-B Messages (29-bit Identifiers)D13-D8: UnusedD7-D0 The 16th through 9th bits of a 29-bit IdentifierMSG_ID1The 8th through 1st bits of a 29-bit IdentifierDescription D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 FUNCTIONMSG_ID1 0 0 x x x x x x D D D D D D D D D=DATA BITD15: Start of Message Flag. Always equals 0D14: End of Message Flag. Always equals 0For CAN-A Messages (11-bit Identifiers)D13-D0 Unused, but must be present.For CAN-B Messages (29-bit Identifiers)D13-D8: UnusedD7-D0: The 8th through 1st bits of a 29-bit Identifier
