https://docs.emtronaustralia.com.au/engine-management/config/communications/sequential-addressing/index.htmlMany CAN data sets in the ECU use a sequential addressing approach. This simply means that each message is on an ID that is some offset from the “Base Address”. In the above example, Pre-defined Tx Set 1 send it’s first frame on ID 1250. The whole data set contains 10 frames. They’re sent out incrementally from 1250. eg: 1250, 1251, 1252, 1253 … 1259.Hugoen-us