Premier EF-3 Electric Engine w/Proto-Sound 3.0
NOTE
: CV21 is ONLY used when you have some value other than 0 written to CV19. If CV19
= 0 then the values of CV21, CV22, CV23, and CV24 are not used
3. Call up your Middle engine (address 2 in the example)
4. Since you want to have the Middle engine respond to F3 only then write a value of 4 (CV21,
bit 2 = ON)
5. Call up your Rear engine (address 3 in the example)
6. Since you want to have the Rear engine respond to the Start-Up/Shut Down (F3) and Rear
Coupler (F8) functions you want to write a value of 132 to CV21
Your engines are now set up according to the example above.
You will note that there is no F0 in CV21. This is because that function (FL) is controlled by
CV22. Please refer to the Advanced Consisting section for more information regarding CV22.
Programming Track
Your MTH Proto-Sound 3.0-equipped locomotive does not program well on Programming tracks
due to the inclusion of super capacitors utilized in the locomotive's electronic package. The super
capacitors provide backup power to the electronics, allowing the locomotive to better negotiate
track sections suffering from poor electrical conductivity. This ensures that sounds continue to
play, the locomotive continues to move forward and lighting remains lit. During power
shutdowns, the super capacitors provide power to allow the locomotive shutdown sounds to
continue playing through their conclusion. Unfortunately, the super capacitors require that
operators ONLY program engine CV’s using Programming on the Main (PoM).
DCC Bit Value Decoder
Decimal
Value
128
0
16
0
0
1
64
8
Example Value (bit 7 -> bit 0) 11011001
Binary
Example
1 (on)
Bit
(Decimal
Value)
7 (128)
5 (32)
4 (16)
3 (8)
2 (4)
1 (2)
0 (1)
6 (64)
1 (on)
1 (on)
1 (on)
1 (on)
1 (on)
0 (off)
0 (off)
0 (off)
So, in the above example you simply add up the values in the “Decimal Value” row –
128+64+0+16+8 +0+0+1 = 217. You would write 217 to the CV you were altering.
The above applies to any CV. Also, if you have a CV that already has a value assigned that you do
not want to alter but need to make additions to it, for example CV29, you would simply add the
additional bits you enabled to the existing value to obtain the new CV value.
For example, if you had a consist address (CV19) set to 5 and you wanted to alter this to show an
engine reversed in the consist you would need to set bit 7 (decimal value = 128) for the engine
you want to reverse. To do this - take 128 (the new bit you want to set) + 5 (the existing bit that
you do not want to alter) = 133. You would then write a value of 133 to CV19.
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