SoundTraxx Coach Lighting Decoder Users Guide - Manual (Page 14)

SoundTraxx Lighting Decoder User’s Guide Page 11
Step 2: Configuring the Decoder
The next CV you will want to change is CV 29, Decoder Configuration
Byte. CV 29 is one of those complicated bit variables mentioned earlier
and is used in conjunction with other CVs to set a multitude of decoder
characteristics including Direction, Speed Step Mode Selection, and Alternate
Power Mode Enable.
Direction - Causes the decoder to invert direction commands so that the
coach’s lights run in reverse when it receives a command to move forward
and vice-versa. This is only if you are using the F0(f) and/or F0(r) outputs on
the decoder. It will not affect the FX5 or FX6 outputs.
Speed Step Mode Selection - As it is a digital system, your decoder splits
the throttle voltage over its minimum and maximum range into discrete speed
steps. The decoder can be configured so there are 14, 28 or 128 individual
speed steps. Since not all DCC systems have the ability to control 28 or 128
speed steps, your choice will depend upon the technical capabilities of your
command station. Running your decoder in the wrong speed step mode will
make the F0 lighting outputs flash on and off.
Primary or Extended Address - Sets the decoder to recognize its primary
address in CV 1 or extended address in CV 17:18 (see “Configuring the
Address”, page 13).
Alternate (Analog) Power Mode - Enables the decoder to work with an
alternate power mode (such as DC operation) as set by CV 12 when a DCC
signal is not present.
To assist the novice user, we have created Table A on page 16 that lists the
correct value for CV 29 to get the desired operating modes.
To use the table, simply find the row that has the modes you want and
program CV 29 with the listed value.
The advanced user should refer to the Technical Reference for more details.
Remember, table values are in decimal. If your command station uses Hex
(Hexadecimal), you will need to convert the value shown using Appendix A.
Basic Programming
Bit 7 Bit 0
0 0 EAM RES ACK APS F0 DIR