| Key | Function | Soundslots | Volume CVs | Volume value |
|---|---|---|---|---|
| Light | front light, dynamo | 19 | 403 | 10 |
| F1 | sound on/off | 1, 2, 24 | 259, 267, 443 | 128, 128, 128 |
| F2 | whistle | 3 | 275 | 128 |
| F3 | short whistle signal | 16 | 379 | 128 |
| F4 | bell | 4 | 283 | 128 |
| F5 | airpump | 6 | 299 | 50 |
| F6 | acceleration/brake time, shunting mode/shunting speed | |||
| F7 | curve squeal sound on/off | 15 | 371 | 60 |
| F8 | dynamo off/on | |||
| F9 | cylinder blow out | 9 | 323 | 128 |
| F10 | conductor's signal | 10 | 331 | 90 |
| F11 | coupler clank | 8 | 315 | 75 |
| F12 | sanding valve | 11 | 339 | 20 |
| F13 | brake set (release automatically) | 13 | 355 | 80 |
| F14 | station announcement #1 | 7 | 307 | 100 |
| F15 | coal shoveling | 5 | 291 | 50 |
| F16 | safety valve | 12 | 347 | 128 |
| F17 | railclank sound on/off | 17 | 387 | 100 |
| F18 | dumping | 14 | 363 | 95 |
| F19 | deactivate brake squeal sound | |||
| F20 | station announcement #2 | 22 | 427 | 100 |
| F21 | station announcement #3 | 23 | 435 | 100 |
| F22 | injector | 20 | 411 | 80 |
| F23 | soundfader |