SoundTraxx Tsunami Steam Users Guide - Manual (Page 18)

Tsunami Steam Sound User’s Guide Page 15
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 Locomotive Direction, Speed Step Mode Selection,
Speed Table Enable and Alternate Power Mode Enable.
Locomotive Direction - Causes the decoder to invert direction commands
so that the locomotive runs in reverse when it receives a command to move
forward and vice-versa. This operating mode is most useful for setting up
diesel engines that ran with the long hood section forward. However, it is also
useful for electronically correcting installations where the motor wires were
accidentally reversed and avoids tearing apart the locomotive a second time.
Speed Step Mode Selection - As it is a digital system, Tsunami splits the
throttle voltage over its minimum and maximum range into discrete speed
steps. Tsunami can be configured so there are 14, 28 or 128 individual speed
steps. The largest number of steps will give the smoothest throttle response.
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.
Speed Table - Sets the decoder to use the speed table specified by CV 25
(see “Configuring the Throttle”, page 17).
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 the next page 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 STE ACK APS F0 DIR