| Key | Function | Soundslots | Volume CVs | Volume value |
|---|---|---|---|---|
| Light | Front light, dynamo | 8 | 315 | |
| F1 | Sound on/off | 1, 2, 24 | 259, 267, 443 | |
| F2 | whistle | 4 | 283 | |
| F3 | bell | 3 | 275 | |
| F4 | driver's dialog | 10 | 331 | |
| F5 | coal shoveling | 11 | 339 | |
| F6 | shunting mode | |||
| F7 | air pump | 5 | 291 | |
| F8 | Short whistle | 9 | 323 |