| Byte | Name | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | 
|---|---|---|---|---|---|---|---|---|---|
| 0 | SLOT_NUMBER | 0 | |||||||
| 1 | SLOT_STATUS1 | SL_SPURGE | SL_BUSY | SL_ACTIVE | SL_CONDN | SL_SPDEX | SL_SPD14 | SL_SPD28 | |
| Internal use | Combine with SL_CONDN 00 = FREE 01 = Last engine 10 = TOP 11 = MID  | 
	01 = COMMON 10 = IDLE 11 = In use  |   | 0 = basic consisting 1 = advanced consisting Advanced available only on type 00 and 11 decoders  | 
	00 = 28 step 3 byte packet 01 = 28 step trinay packet 10 = 14 step mode 11 = 128 step mode  | 
||||
| 2 | SLOT_LOCO_ADR | 0 | |||||||
| 3 | SLOT_SPEED | 0 | |||||||
| 4 | SLOT_DIRF | 0 | reserved  | 1 = forward  | 
	Directional lighs  | ||||
| 5 | TRK | 0 | 1 = Loconet 2.0 or greater | 1=Programming track busy  | 
	0=DT200, 1=Loconet 1.1 or greater  | 
	0=Track in emergency stop  | 
	1=DCC packets and track power are ON  | ||
| 6 | SLOT_STATUS2 | ID1/2 type 0 = alias 1 = actual  | 
	ID1/2 usage 0 = in use 1 = NOT ID  | reserved | 1 = suppressed adv consist | ||||
| 7 | SLOT_LOCO_ADR_HIGH | 0 | if 0 then DCC sends SHORT address  | ||||||
| 8 | SLOT_SOUND | ||||||||
| 9 | ID1 | 0 | |||||||
| 10 | ID2 | 0 | |||||||
| From | To | Size | Content | ||||
|---|---|---|---|---|---|---|---|
| Hex | ID2 | ID1 | Hex | ID2 | ID1 | ||
| 0x0000 | 0x00 | 0x00 | 0x0000 | 0x00 | 0x00 | 1 | NO ID | 
| 0x0001 | 0x00 | 0x01 | 0x00FF | 0x01 | 0x7F | 255 | PC usage | 
| 0x0100 | 0x02 | 0x00 | 0x01FF | 0x03 | 0x7F | 256 | System reserved | 
| 0x0200 | 0x04 | 0x00 | 0x3F7F | 0x7E | 0x7F | 15,744 | Throttle | 
| 0x3F80 | 0x7F | 0x00 | 0x3FFF | 0x7F | 0x7F | 128 | reserved |