| Key | Function | Soundslots | Volume CVs | Volume value |
|---|---|---|---|---|
| Light | front light, dynamo | 21 | 419 | 13 |
| F1 | sound on/off | 1, 2, 24 | 259, 267, 443 | 128, 128, 128 |
| F2 | long whistle | 3 | 275 | 128 |
| F3 | bell | 4 | 283 | 80 |
| F4 | coal loading | 5 | 291 | 58 |
| F5 | air pump | 6 | 299 | 75 |
| F6 | acceleration/brake time, shuting mode/shunting speed | |||
| F7 | curve squeal | 15 | 371 | 70 |
| F8 | AUX 1 | |||
| F9 | cylinder blow out | 9 | 323 | 100 |
| F10 | conductor's signal | 10 | 331 | 95 |
| F11 | coupler clank | 8 | 315 | 60 |
| F12 | sanding valve | 11 | 339 | 30 |
| F13 | brake release/ set brake | 13 | 355 | 75 |
| F14 | station announcement #1 | 7 | 307 | 80 |
| F15 | short whistle | 16 | 379 | 128 |