NumericIndex

Opcode Index

00-1F, 0 Data Byte Packets

00 General Acknowledgement (ACK) Delete, see 7C ?
01 General No Ack(NAK) Delete, see 7C ?
02 Bus Halt (HLT) Delete ?
03 Bus ON (BON) Delete ?
04 Track OFF (TOF)
05 Track ON (TON)
06 Track Stopped (ESTOP)
07 Command Station Reset (ARST)
08 Request Track OFF (RTOF)
09 Request Track ON (RTON)
0A Request Emergency Stop ALL (RESTP)
0B Request firmware Version (RVER) Delete, see 10 ?
0C Request Command Station Status (RSTAT)
0D Request node number (RQNN) Delete ?
0E to 0F Not allocated.
10 Read node parameters Replace ?
11 to 1F Not allocated.

20-3F, 1 Data Byte Packets

20 Command Station status report(STAT)
21 Release Engine(KLOC)
22 Query engine (QLOC)
23 Keep Alive (KEEP) Delete ?
24 to 3E Not allocated.
3F Extended op-code with no data byte packet (EXTC)

40-5F, 2 Data Byte Packets

40 Request engine assignment(RLOC)
41 Query Consist (QCON)
42 Set Node Number (SNN)
43 Version report (VER) Delete, see EF ?
44 Set Throttle session mode (STMOD)
45 Consist Engine (PCON)
46 Remove Engine from consist (KCON)
47 Set Engine Speed/Dir(DSPD)
48 Set Engine Flags (DFLG) Delete ?
49 DCC Event mapping commands (DCCE) ?
4A Deny Node Number (REJNN) Delete ?
4B Request Unique Id from node (RQUID)
4A to 4F Not allocated.
50 Request/acknowledge Node Number (NNACK)
51 Release Node Number (NNREL)
52 Node number refresh (NNREF)
53 Enter learn mode (NNLRN)
54 Exit Learn Mode (NNULN)
55 Clear all Events (NNCLR)
56 Event Free space (NNEVN)
57 to 5B Not allocated.
5C Software download start (LDRSTRT)
5D Reset/restart cmd (LDRRST)
5E to 5E Not allocated.
5F Extended op-code with 1 data byte packet. (EXTC1)

60-7F, 3 Data Byte Packets

60 Set Engine functions (DFUN)
61 Read CV (QCVS)
62 Report CV (PCVS)
63 Command Station Error report(ERR)
64 to 6F Not allocated.
70 Event Space Left (EVNLF)
71 Read Node Variable (NVRD)
7C Status acknowledge from nodenumber (ACKNN)
7D to 7E Not allocated.
7F Extended op-code with 2 data byte packets. (EXTC2)

80-9F, 4 Data Byte Packets

80 Request 3-byte DCC Packet (RDCC3)
81 Write CV in Service mode (WCVS)
82 Write CV (byte) in Ops Mode (WCVO)
83 Write CV (bit) in Ops Mode (WCVB)
83 Node version report (VER) Deleted.
84 to 8F Not allocated.
90 Accessory ON (ACON)
91 Accessory OFF (ACOF)
92 Accessory Request Event (AREQ)
93 Accessory Response Event (ARSP)
94 Read Event Variables (EVRD)
95 Unlearn Event (EVULN)
96 Set a Node Variable (NVSET)
97 Node Variable Value (NVANS)
98 Accessory Short ON (ASON)
99 Accessory Short OFF (ASOF)
9A Accessory Request Event (ASRQ)
9B to 9E Not allocated.
9F Extended op-code with 3 data byte packets. (EXTC3)

A0-BF, 5 Data Byte Packets

A0 Request 4-byte DCC Packet (RDCC4)
A1 to AF Not allocated.
B0 On Event with 1 data byte (ACON1)
B1 Off Event with 1 data byte (ACOF1)
B2 Request Event with 1 data byte (ACON1)
B3 Response Event with 1 data byte (ACON1)
B3 Response Event with 1 data byte (ACON1)
B5 to BB Not allocated.
BC Read block command (LDRRB)
BD Write block command (LDRWB)
BE to BE Not allocated.
BF Extended op-code with 3 data byte packets. (EXTC3)

C0-DF, 6 Data Byte Packets

C0 Request 5-byte DCC Packet (RDCC5)
C1 to CF Not allocated.
D0 On Event with 2 data bytes (ACON2)
D1 Off Event with 2 data bytes (ACOF2)
D2 Learn Event (EVLRN)
D3 Event data (EVANS)
D4 Accessory Response Event (ARSP2)
D5 to DB Not allocated.
DC Erase Event data (EVERASE)
DD to DE Not allocated.
DF Extended op-code with 4 data byte packets. (EXTC4)

E0-FF, 7 Data Byte Packets

E0 Request 6-byte DCC Packet (RDCC6)
E1 Engine report (PLOC)
E2 Unique ID reply (PUID)
E3 RFID tag read (RFID)
E4 Event learn rejected (EVREJ)
E5 Event learn (EVLRNT)
E6 Teach type specific event (ETYPE)
E7 Teach type specific event (ETYPE)
E8 Engine function report (PLOCF)
E9 to EE Not allocated.
EF Node parameters
F0 On Event with 3 data bytes
F1 Off Event with 3 data bytes
F2 Not allocated.
F3 response event with 3 data
F4 to FB Not allocated.
FC Memory data packet (LDRDATA)
FD Event write (EVWRITE)
FE Event read (EVREAD)
FF Not allocated.