Before revision: Payload 10 to (n+10) The data into the message, depends on the message id.CRC (n+11) to (n+12) Check-sum of the entire packet, excluding the packet start sign (LSB to MSB) Signature (n+ 12 ) to (n+ 26 ) Signature to verify that messages originate from a trusted source.
After revision: Payload 10 to (n+10) The data into the message, depends on the message id.CRC (n+11) to (n+13) Check-sum of the entire packet, excluding the packet start sign (LSB to MSB) Signature (n+ 12 ) to (n+ 25 ) Signature to verify that messages originate from a trusted source.