DD40AX Diesel Engine
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11. Call up the consist address (address 4 in this example)
12. Press the F0 button to ensure the FL is toggled on. Most systems have a light bulb
icon to indicate whether F0 is active or not. Ensure that it is ON
NOTE –
The convenient thing about setting up the consist as described above is that it
allows you flexibility in the orientation of an engine in a consist; particularly the head and
tail engines where the FL control is integral. For example, if you wanted to flip the Rear
engine around and make it face forward in the consist all you’d have to do is go into the
Rear engine’s address (address 3 in the example) and clear bit 7 of CV19. In other words,
just write the consist’s address to CV19. The FL control will automatically understand
what you’ve done so there is no need to go in and change CV22.
Below is a table that outlines which bits correspond to what F Functions F0, F9-F12 are
used in a consist:
Setting Up CV21 for a Consist
CV21 allows you to set which F Functions you want the consist address to control. For
example, you will likely want all of your MTH consist engines to respond to StartUp/
Shut Down (F3). Also, you’ll likely want at your Front engine to respond to the Bell and
Horn commands (F1 and F2, respectively) and the Front Coupler (F7 on most MTH mod-
els). Likewise, you’ll want your Rear engine to respond to the Rear Coupler command
(F8 on most MTH models).
Please refer to the table below to see which bits have what decimal value and which F
Function they correspond to.
To do this:
1. Call up the Front engine on your DCC system
2. To set the Front engine to respond to the Bell (F1), Horn (F2), Start-Up/Shut Down
(F3) and Front Coupler (F7) you will want to write a value of 71 to CV21. This is setting
bits 0, 1, 2, and 6 ON.
a. CV21’s bits are shown in the table below – the decimal value is shown in paren-
thesis:
Summary of Contents for 20-20566-1
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