721 (ex T458.1)
- F0lights switch on/off
- F1unassigned - reserved for advanced light
MTB - red lights control
- F2unassigned - reserved for advanced light
MTB-H0 - spotlight control
- F3shunting mode
- F4short horn
- reduction acceleration/breaking time based on CV3 and CV4 to half
- Slow start to model the sound of idle
- F6engine coasting
- F7long horn
- F8engine on/off
- F9cabin light on/off
- F10coupling sound
Sounds for F4, F7, F10 and F11 is possible to play when the engine is off.
F3 - turn shunting mode reduces max. speed in half. This will soften the range of speed control locomotives during shunting. At the same time, the reduced acceleration/breaking time based on CV3 and CV4 is reduced to quarter, which will accelerate the model shift reaction.
F5 - functionality on/off. This functionality is available from decoder version 33.0 and above.
F6 - engine coasting to max. RPM is independent from throttle. This function allow have max. RPM also for standing loco or during slow drive. Usage depending on F8 switched on. Target level, to which have to be raised speed affects CV375. For this project, the max. value is 6. Works for firmware version 32 and above.
Function assigning and change of CV's value is possible.