...
| Initializing | Pre-Op. | Operational | Stop | |
|---|---|---|---|---|
| PDO Transfer | X | |||
| SDO Transfer | X | X | ||
| SYNC Object | X | X | ||
| Time Stamp Object | X | X | ||
| Emergency Object | X | X | ||
| Boot-Up Object | X | |||
| NMT Object | X | X | X |
Note: The Boot-Up message is sent only once during the transition from "Initialization" to "Pre-Operational".