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# Basic Programming

CV 21 and 22 take effect only when the consist address is set. When function commands are used with the DSD’s primary or extended address, all functions will continue to work regardless of the settings of CV 21 and 22.

Use Table D to calculate the correct value for CV 21, and Table E to calculate the correct value for CV 22. Begin by looking at Table D and determining which functions you want active in the consist and circle the number below it. When you are done, add up all the circled numbers in the row and program the total into CV 21.

CV# F1 F2 F3 F4 F5

F6

F7

F8

21 1 2 4 8 16

32

64

128

Table D. Consist Function Control 1

Now look at Table E and do the same: add up all the circled numbers in the row and program CV 22 with the sum.

Table E. Consist Function Control 2

CV# F0(f) F0(r) F9 F10 F11

F12

22 1 2 4 8 16

32

Note that each DSD in the consist will require a different set of values for CV 21 and 22 depending upon your requirements.

Consist Example: Consider a double-header consisting of two engines, #4088 and #5239. Let’s suppose we wish to operate these two engines as a single unit with consist address 40.

Trailing Unit

4088

Direction

Normal

CV 19 (Consist Address) CV 21 CV 22

40 135 17

5239

Normal

40 128 18

You might want the brake squeal (F11) and audio mute (F8) functions to work on both engines. However, you will likely want the headlight (F0(f)), whistle (F2) short whistle (F3) and bell (F1) to only work on the lead engine, #4088, and the backup light (F0 (r)) to work only on #5239.

# Tsunami Steam Sound User’s Guide

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