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0xA2 sends speed or function packets to a locomotive.
Command Format: 0xA2 <addr_h> <addr_l> <op_1> <data_1>
Addr_h and Addr_l are the loco address in DCC format.
If a long address is in use, bits 6 and 7 of the high byte are set.
Example: Long address 3 = 0xc0 0x03
Short address 3 = 0x00 0x03
op_1 data_1 Operation description
01 0-7f Reverse 28 speed command
02 0-7f Forward 28 speed command
03 0-7f Reverse 128 speed command
04 0-7f Forward 128 speed command
05 0 Estop reverse command
06 0 Estop forward command
07 0-1f Function group 1 (same format as DCC packet for FG1
08 0-0f Function group 2 (same format as DCC packet for FG2
09 0-0f Function group 3 (same format as DCC packet for FG3
0a 0-7f Set reverse consist address for lead loco
0b 0-7f Set forward consist address for lead loco
0c 0-7f Set reverse consist address for rear loco
0d 0-7f Set forward consist address for rear loco
0e 0-7f Set reverse consist address for additional loco
0f 0-7f Set forward consist address for additional loco
10 0 Del loco from consist
11 0 Kill consist
12 0-9 Set momentum
13 0-7f No action, always returns success
14 0-7f No action, always returns success
15 0-ff Functions 13-20 control (bit 0=F13, bit 7=F20)
16 0-ff Functions 21-28 control (bit 0=F21, bit 7=F28)
17 0-3f Assign this loco to cab number in data_1
18-7f reserved reserved
Returns: ! = success
1 = bad loco address
0xAD sends accessory or signal packets
Command Format: 0xAD <addr_h> <addr_l> <op_1> <data_1>
The address range is 1-2047
Addr_h and Addr_l are the accessory/signal address (NOT in DCC format).
Example: Accessory Address 513 = 0x02 0x01 (hi byte first)
Accessory Address 6 = 0x00 0x06 (hi byte first)
NOTE: accy/signal address 0 is not a valid address
address 2044 is the broadcast address
Op_1 Data_1 Operation description
01 0-255 NCE macro number 0-255
02 0-255 Duplicate of Op_1 command
03 0 Accessory Normal direction (ON)
04 0 Accessory Reverse direction (OFF)
05 0-1f Signal Aspect 0-31
05-7f reserved reserved
Returns: ! = success
1 = bad accy address
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