| Key | Function | Soundslots | Volume CVs | Volume value |
|---|---|---|---|---|
| Light | Front light, dynamo | 19 | 403 | 5 |
| F1 | Sound on/off | 1, 2, 24 | 259, 267, 443 | 128, 128, 75 |
| F2 | whistle long | 3 | 275 | 128 |
| F3 | short whistle | 4 | 283 | 128 |
| F4 | coal shoveling | 5 | 291 | 70 |
| F5 | air pump | 6 | 299 | 33 |
| F6 | acceleration/brake time, shuting mode/shunting speed | |||
| F7 | curve squeal | 15 | 371 | 90 |
| F8 | AUX 1 | |||
| F9 | cylinder blow out | 9 | 323 | 128 |
| F10 | conductor's signal | 10 | 331 | 46 |
| F11 | coupler clank | 8 | 315 | 40 |
| F12 | sanding valve | 11 | 339 | 20 |
| F13 | brake release / brake set | 13 | 355 | 50 |
| F14 | station announcement #1 | 7 | 307 | 70 |
| F15 | station announcement #2 | 22 | 427 | 60 |
| F16 | safety valve | 12 | 347 | 128 |
| F17 | rail clank | 17 | 387 | 60 |
| F18 | dumping | 14 | 363 | 93 |
| F19 | water pump | 21 | 419 | 40 |
| F20 | injector | 20 | 411 | 53 |
| F21 | gland nut (shift mode) |