27
DCC operations
Lionel Specific CV Settings (continued)
CV29 supports the following (default is 18 decimal, 12 hex):
Bit 0 =
Locomotive Direction: “0” = normal, “1” = reversed. This bit controls the locomotive’s
forward and backward direction in DCC mode only.
Bit 1 =
FL location: set to “0” in bit 4 to allow Speed and Direction instructions control the FL,
“1” = bit 4 in function group one instruction controls FL. The recommended setting is
“1”.
Bit 2 =
Power Source Conversion: Set to”0” = DCC Capable Only. Set to “0”, this bit is not
supported. However the locomotive will operate on DC only environments.
Bit 3 =
Bi-Directional Communications: Set to “0”, single direction communication.
Bit 4 =
Speed table: In this loco, the Speed Table set by configuration variables 66-95 is always
active in 14 and 28 speed steps, and never active in 128 speed steps. Bit 4 is not used.
Bit 5 =
“0” = one byte addressing, “1” = two byte addressing (also known as extended
addressing) . Both modes are supported.
Bit 6 =
Reserved for future use
Bit 7 =
Accessory Decoder: “0” = Multifunction Decoder, “1” = Accessory Decoder, this bit is set to
“0”.
• Set CV29 to 18 (12 hex) for short locomotive address.
• Set CV29 to 50 (32 hex) for extended (long) locomotive address.
